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ASHRAE Fundamentals Handbook SI 2013

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2013 ASHRAE Handbook Fundamentals – SI Edition

Published By Publication Date Number of Pages
ASHRAE 2013 992
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The 2013 ASHRAE Handbook: Fundamentals covers basic principles and data used in the HVAC&R industry. Updated with research sponsored by ASHRAE and others, this volume includes 1,000 pages and 39 chapters covering general engineering information, basic materials, climate data, load and energy calculations, duct and pipe design, and sustainability, plus reference tables for abbreviations and symbols, I-P to SI conversions, and physical properties of materials.

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PDF Pages PDF Title
1 F13 FrontMatter_SI
2 Dedicated To The Advancement Of
The Profession And Its Allied Industries
DISCLAIMER
9 SI_F13_Ch01
Composition of Dry and Moist Air
U.S. Standard Atmosphere
Table 1 Standard Atmospheric Data for Altitudes to 10 000 m
10 Thermodynamic Properties of Moist Air
Thermodynamic Properties of Water at Saturation
Humidity Parameters
Basic Parameters
11 Table 2 Thermodynamic Properties of Moist Air at Standard Atmospheric Pressure, 101.325 kPa
13 Table 3 Thermodynamic Properties of Water at Saturation
14 Table 3 Thermodynamic Properties of Water at Saturation (Continued )
16 Humidity Parameters Involving Saturation
Perfect Gas Relationships for Dry and Moist Air
17 Thermodynamic Wet-Bulb and Dew-Point Temperature
Numerical Calculation of Moist Air Properties
18 Moist Air Property Tables for Standard Pressure
Psychrometric Charts
19 Fig. 1 ASHRAE Psychrometric Chart No. 1
20 Typical Air-Conditioning Processes
Moist Air Sensible Heating or Cooling
Fig. 2 Schematic of Device for Heating Moist Air
Fig. 3 Schematic of Device for Cooling Moist Air
Fig. 3 Schematic Solution for Example 2
Moist Air Cooling and Dehumidification
21 Fig. 5 Schematic Solution for Example 3
Adiabatic Mixing of Two Moist Airstreams
Fig. 6 Adiabatic Mixing of Two Moist Airstreams
Adiabatic Mixing of Water Injected into Moist Air
Fig. 7 Schematic Solution for Example 4
Fig. 8 Schematic Showing Injection of Water into Moist Air
22 Fig. 9 Schematic Solution for Example 5
Space Heat Absorption and Moist Air Moisture Gains
Fig. 10 Schematic of Air Conditioned Space
23 Fig. 11 Schematic Solution for Example 6
Transport Properties of Moist Air
Fig. 12 Viscosity of Moist Air
Fig. 13 Thermal Conductivity of Moist Air
Symbols
Table 4 Calculated Diffusion Coefficients for Water/Air at 101.325 kPa
24 References
Bibliography
25 SI_F13_Ch02
Thermodynamics
Stored Energy
Energy in Transition
Fig. 1 Energy Flows in General Thermodynamic System
26 First Law of Thermodynamics
Second Law of Thermodynamics
27 Thermodynamic Analysis of Refrigeration Cycles
28 Equations of State
29 Calculating Thermodynamic Properties
Phase Equilibria for Multicomponent Systems
30 Fig. 2 Mixture of i and j Components in Constant-Pressure Container
Fig. 3 Temperature-Concentration (T – x) Diagram for Zeotropic Mixture
Fig. 4 Azeotropic Behavior Shown on T – x Diagram
Compression Refrigeration Cycles
Carnot Cycle
31 Fig. 5 Carnot Refrigeration Cycle
Fig. 6 Temperature-Entropy Diagram for Carnot Refrigeration Cycle of Example 1
Fig. 7 Carnot Vapor Compression Cycle
32 Theoretical Single-Stage Cycle Using a Pure Refrigerant or Azeotropic Mixture
Fig. 8 Theoretical Single-Stage Vapor Compression Refrigeration Cycle
Fig. 9 Schematic p – h Diagram for Example 2
Table 1 Thermodynamic Property Data for Example 2
33 Fig. 10 Areas on T- s Diagram Representing Refrigerating Effect and Work Supplied for Theoretical Single-Stage Cycle
Lorenz Refrigeration Cycle
Fig. 11 Processes of Lorenz Refrigeration Cycle
34 Theoretical Single-Stage Cycle Using Zeotropic Refrigerant Mixture
Fig. 12 Areas on T- s Diagram Representing Refrigerating Effect and Work Supplied for Theoretical Single-Stage Cycle Using Zeotropic Mixture as Refrigerant
Multistage Vapor Compression Refrigeration Cycles
35 Fig. 13 Schematic and Pressure-Enthalpy Diagram for Dual-Compression, Dual-Expansion Cycle of Example 4
Table 2 Thermodynamic Property Values for Example 4
Actual Refrigeration Systems
36 Fig. 14 Schematic of Real, Direct-Expansion, Single-Stage Mechanical Vapor-Compression Refrigeration System
Table 3 Measured and Computed Thermodynamic Properties of R-22 for Example 5
Fig. 15 Pressure-Enthalpy Diagram of Actual System and Theoretical Single-Stage System Operating Between Same Inlet Air Temperatures tR and t0
37 Table 4 Energy Transfers and Irreversibility Rates for Refrigeration System in Example 5
Absorption Refrigeration Cycles
Ideal Thermal Cycle
38 Fig. 16 Thermal Cycles
Working Fluid Phase Change Constraints
Fig. 17 Single-Effect Absorption Cycle
39 Temperature Glide
Working Fluids
40 Table 5 Refrigerant/Absorbent Pairs
Effect of Fluid Properties on Cycle Performance
Absorption Cycle Representations
Conceptualizing the Cycle
41 Fig. 18 Double-Effect Absorption Cycle
Fig. 19 Generic Triple-Effect Cycles
Absorption Cycle Modeling
Analysis and Performance Simulation
Fig. 20 Single-Effect Water/Lithium Bromide Absorption Cycle Dühring Plot
Table 6 Assumptions for Single-Effect Water/ Lithium Bromide Model (Figure 20)
42 Table 7 Design Parameters and Operating Conditions for Single-Effect Water/Lithium Bromide Absorption Chiller
Table 8 Simulation Results for Single-Effect Water/Lithium Bromide Absorption Chiller
Double-Effect Cycle
43 Fig. 21 Double-Effect Water/Lithium Bromide Absorption Cycle with State Points
Table 9 Inputs and Assumptions for Double-Effect Water-Lithium Bromide Model (Figure 21)
Ammonia/Water Absorption Cycles
Fig. 22 Single-Effect Ammonia/Water Absorption Cycle
44 Table 10 State Point Data for Double-Effect Lithium Bromide/Water Cycle of Figure 21
Table 11 Inputs and Assumptions for Single-Effect Ammonia/Water Cycle (Figure 22)
Table 12 State Point Data for Single-Effect Ammonia/Water Cycle (Figure 22)
Adsorption Refrigeration Systems
45 Symbols
References
46 Bibliography
47 SI_F13_Ch03
Fluid Properties
Density
Viscosity
Fig. 1 Velocity Profiles and Gradients in Shear Flows
48 Basic Relations of Fluid Dynamics
Continuity in a Pipe or Duct
Bernoulli Equation and Pressure Variation in Flow Direction
Laminar Flow
49 Fig. 2 Dimensions for Steady, Fully Developed Laminar Flow Equations
Turbulence
Fig. 3 Velocity Fluctuation at Point in Turbulent Flow
Basic Flow Processes
Wall Friction
Fig. 4 Velocity Profiles of Flow in Pipes
50 Fig. 5 Pipe Factor for Flow in Conduits
Fig. 6 Flow in Conduit Entrance Region
Boundary Layer
Fig. 7 Boundary Layer Flow to Separation
Flow Patterns with Separation
Fig. 8 Geometric Separation, Flow Development, and Loss in Flow Through Orifice
Fig. 9 Examples of Geometric Separation Encountered in Flows in Conduits
51 Fig. 10 Separation in Flow in Diffuser
Drag Forces on Bodies or Struts
Nonisothermal Effects
Fig. 11 Effect of Viscosity Variation on Velocity Profile of Laminar Flow in Pipe
Table 1 Drag Coefficients
52 Flow Analysis
Generalized Bernoulli Equation
Fig. 12 Blower and Duct System for Example 1
Conduit Friction
53 Fig. 13 Relation Between Friction Factor and Reynolds Number
Table 2 Effective Roughness of Conduit Surfaces
54 Valve, Fitting, and Transition Losses
Table 3 Fitting Loss Coefficients of Turbulent Flow
55 Fig. 14 Diagram for Example 2
Control Valve Characterization for Liquids
Incompressible Flow in Systems
56 Fig. 15 Valve Action in Pipeline
Fig. 16 Effect of Duct Length on Damper Action
Fig. 17 Matching of Pump or Blower to System Characteristics
Flow Measurement
Fig. 18 Differential Pressure Flowmeters
57 Fig. 19 Flowmeter Coefficients
Unsteady Flow
58 Fig. 20 Temporal Increase in Velocity Following Sudden Application of Pressure
Compressibility
59 Compressible Conduit Flow
Cavitation
Fig. 21 Cavitation in Flows in Orifice or Valve
Noise in Fluid Flow
60 Symbols
References
61 SI_F13_Ch04
Heat Transfer Processes
Conduction
Fig. 1 (A) Conduction and (B) Convection
Convection
Table 1 Heat Transfer Coefficients by Convection Type
62 Radiation
Combined Radiation and Convection
Contact or Interface Resistance
Fig. 2 Interface Resistance Across Two Layers
Heat Flux
63 Overall Resistance and Heat Transfer Coefficient
Fig. 3 Thermal Circuit
Thermal Conduction
One-Dimensional Steady-State Conduction
Table 2 One-Dimensional Conduction Shape Factors
64 Fig. 4 Thermal Circuit Diagram for Insulated Water Pipe (Example 1)
Two- and Three-Dimensional Steady-State Conduction: Shape Factors
Fig. 5 Efficiency of Annular Fins of Constant Thickness
Extended Surfaces
65 Table 3 Multidimensional Conduction Shape Factors
66 Fig. 6 Efficiency of Annular Fins with Constant Metal Area for Heat Flow
Fig. 7 Efficiency of Several Types of Straight Fins
Fig. 8 Efficiency of Four Types of Spines
67 Fig. 9 Rectangular Tube Array
Fig. 10 Hexagonal Tube Array
68 Transient Conduction
69 Table 4 Values of c1 and m1 in Equations (14) to (17)
70 Fig. 11 Transient Temperatures for Infinite Slab, m = 1/Bi
Fig. 12 Transient Temperatures for Infinite Cylinder, m = 1/Bi
71 Fig. 13 Transient Temperatures for Sphere, m = 1/Bi
Fig. 14 Solid Cylinder Exposed to Fluid
Thermal Radiation
72 Blackbody Radiation
Actual Radiation
Table 5 Emissivities and Absorptivities of Some Surfaces
73 Angle Factor
74 Fig. 15 Radiation Angle Factors for Various Geometries
Radiant Exchange Between Opaque Surfaces
75 Fig. 16 Diagram for Example 8
76 Fig. 17 Diagrams for Example 9
Radiation in Gases
Table 6 Emissivity of CO2 and Water Vapor in Air at 24°C
Table 7 Emissivity of Moist Air and CO2 in Typical Room
77 Thermal Convection
Forced Convection
Fig. 18 External Flow Boundary Layer Build-up (Vertical Scale Magnified)
Fig. 19 Boundary Layer Build-up in Entrance Region of Tube or Channel
78 Table 8 Forced-Convection Correlations
79 Fig. 20 Typical Dimensionless Representation of Forced- Convection Heat Transfer
Fig. 21 Heat Transfer Coefficient for Turbulent Flow of Water Inside Tubes
80 Table 9 Natural Convection Correlations
81 Fig. 22 Regimes of Free, Forced, and Mixed Convection— Flow in Horizontal Tubes
Fig. 23 Diagram for Example 10
Heat Exchangers
Mean Temperature Difference Analysis
NTU-Effectiveness (e) Analysis
82 Table 10 Equations for Computing Heat Exchanger Effectiveness, N = NTU
83 Fig. 24 Cross Section of Double-Pipe Heat Exchanger in Example 11
Plate Heat Exchangers
Fig. 25 Plate Parameters
84 Table 11 Single-Phase Heat Transfer and Pressure Drop Correlations for Plate Exchangers
Heat Exchanger Transients
Heat Transfer Augmentation
85 Passive Techniques
Fig. 26 Overall Air-Side Thermal Resistance and Pressure Drop for One-Row Coils
Fig. 27 Typical Tube-Side Enhancements
86 Fig. 28 Turbulators for Fire-Tube Boilers
Fig. 29 Enhanced Surfaces for Gases
87 Table 12 Equations for Augmented Forced Convection (Single Phase)
88 Table 13 Microchannel Dimensions
Fig. 30 Typical Refrigerant and Air-Side Flow Passages in Compact Automotive Microchannel Heat Exchanger
Active Techniques
Table 14 Active Heat Transfer Augmentation Techniques and Most Relevant Heat Transfer Modes
Table 15 Worldwide Status of Active Techniques
89 Fig. 31 Microchannel Dimensions
Table 16 Selected Studies on Mechanical Aids, Suction, and Injection
90 Table 17 Selected Studies on Rotation
Table 18 Selected Previous Work with EHD Enhancement of Single-Phase Heat Transfer
Fig. 32 Ratio of Heat Transfer Coefficient with EHD to Coefficient Without EHD as Function of Distance from Front of Module
91 Fig. 33 Heat Transfer Coefficients (With and Without EHD) as Functions of Reynolds Number
Symbols
Greek
Subscripts
92 References
94 Bibliography
Fins
Heat Exchangers
95 Heat Transfer, General
97 SI_F13_Ch05
Fig. 1 Characteristic Pool Boiling Curve
Boiling
Boiling and Pool Boiling in Natural Convection Systems
98 Fig. 2 Effect of Surface Roughness on Temperature in Pool Boiling of Pentane
Fig. 3 Correlation of Pool Boiling Data in Terms of Reduced Pressure
99 Table 1 Equations for Natural Convection Boiling Heat Transfer
Maximum Heat Flux and Film Boiling
100 Boiling/Evaporation in Tube Bundles
Table 2 Correlations for Local Heat Transfer Coefficients in Horizontal Tube Bundles
101 Fig. 4 Boiling Heat Transfer Coefficients for Flooded Evaporator
Forced-Convection Evaporation in Tubes
Fig. 5 Flow Regimes in Typical Smooth Horizontal Tube Evaporator
102 Fig. 6 Heat Transfer Coefficient Versus Vapor Fraction for Partial Evaporation
103 Table 3 Equations for Forced Convection Boiling in Tubes
105 Fig. 7 Film Boiling Correlation
Boiling in Plate Heat Exchangers (PHEs)
106 Condensing
Condensation on Inside Surface of Horizontal Tubes
107 Table 4 Heat Transfer Coefficients for Film-Type Condensation
108 Fig. 8 Origin of Noncondensable Resistance
109 Other Impurities
Pressure Drop
Friedel Correlation
Table 5 Constants in Equation (22d) for Different Void Fraction Correlations
110 Lockhart and Martinelli Correlation
Grönnerud Correlation
Müller-Steinhagen and Heck Correlation
111 Fig. 9 Qualitative Pressure Drop Characteristics of Two-Phase Flow Regime
Recommendations
Pressure Drop in Microchannels
112 Table 6 Constant and Exponents in Correlation of Lee and Lee (2001)
Pressure Drop in Plate Heat Exchangers
Enhanced Surfaces.
113 Fig. 10 Pressure Drop Characteristics of Two-Phase Flow: Variation of Two-Phase Multiplier with Lockhart-Martinelli Parameter
114 Fig. 11 Schematic Flow Representation of a Typical Force- Fed Microchannel Heat Sink (FFMHS)
Fig. 12 Thermal Performance Comparison of Different High-Heat-Flux Cooling Technologies
Symbols
115 References
118 Bibliography
119 SI_F13_Ch06
Molecular Diffusion
Fick’s Law
Fick’s Law for Dilute Mixtures
120 Fick’s Law for Mass Diffusion Through Solids or Stagnant Fluids (Stationary Media)
Fick’s Law for Ideal Gases with Negligible Temperature Gradient
Diffusion Coefficient
Table 1 Mass Diffusivities for Gases in Air*
121 Diffusion of One Gas Through a Second Stagnant Gas
Fig. 1 Diffusion of Water Vapor Through Stagnant Air
122 Fig. 2 Pressure Profiles for Diffusion of Water Vapor Through Stagnant Air
Equimolar Counterdiffusion
Fig. 3 Equimolar Counterdiffusion
Molecular Diffusion in Liquids and Solids
123 Convection of Mass
Mass Transfer Coefficient
Fig. 4 Nomenclature for Convective Mass Transfer from External Surface at Location x Where Surface Is Impermeable to Gas A
Fig. 5 Nomenclature for Convective Mass Transfer from Internal Surface Impermeable to Gas A
124 Analogy Between Convective Heat and Mass Transfer
Fig. 6 Water-Saturated Flat Plate in Flowing Airstream
125 Fig. 7 Mass Transfer from Flat Plate
Fig. 8 Vaporization and Absorption in Wetted-Wall Column
Fig. 9 Mass Transfer from Single Cylinders in Crossflow
126 Fig. 10 Mass Transfer from Single Spheres
Fig. 11 Sensible Heat Transfer j-Factors for Parallel Plate Exchanger
127 Lewis Relation
Simultaneous Heat and Mass Transfer Between Water-Wetted Surfaces and Air
Enthalpy Potential
128 Basic Equations for Direct-Contact Equipment
Fig. 12 Air Washer Spray Chamber
129 Fig. 13 Air Washer Humidification Process on Psychrometric Chart
Air Washers
Fig. 14 Graphical Solution for Air-State Path in Parallel Flow Air Washer
130 Fig. 15 Graphical Solution of ò dh/(hi – h)
Cooling Towers
Cooling and Dehumidifying Coils
131 Fig. 16 Graphical Solution for Air-State Path in Dehumidifying Coil with Constant Refrigerant Temperature
Symbols
132 References
Bibliography
133 SI_F13_Ch07
Terminology
Fig. 1 Example of Feedback Control: Discharge Air Temperature Control
134 Fig. 2 Block Diagram of Discharge Air Temperature Control
Fig. 3 Process Subjected to Step Input
Types of Control Action
Two-Position Action
Fig. 4 Two-Position Control
Modulating Control
135 Fig. 5 Proportional Control Showing Variations in Controlled Variable as Load Changes
Fig. 6 Proportional plus Integral (PI) Control
Combinations of Two-Position and Modulating
136 Fig. 7 Floating Control Showing Variations in Controlled Variable as Load Changes
Classification by Energy Source
Computers for Automatic Control
Control Components
Controlled Devices
Valves
Fig. 8 Typical Three-Way Mixing and Diverting Globe Valves
137 Fig. 9 Typical Single- and Double-Seated Two-Way Globe Valves
Fig. 10 Typical Flow Characteristics of Valves
Fig. 11 Typical Performance Curves for Linear Devices at Various Percentages of Total System Pressure Drop
138 Dampers
Fig. 12 Typical Multiblade Dampers
139 Fig. 13 Characteristic Curves of Installed Dampers in an AMCA 5.3 Geometry
Fig. 14 Inherent Curves for Partially Ducted and Louvered Dampers (RP-1157)
140 Fig. 15 Inherent Curves for Ducted and Plenum-Mounted Dampers (RP-1157)
Pneumatic Positive (Pilot) Positioners
Sensors and Transmitters
141 Temperature Sensors
Humidity Sensors and Transmitters
142 Pressure Transmitters and Transducers
Flow Rate Sensors
Indoor Air Quality Sensors
Lighting Level Sensors
Power Sensing and Transmission
Controllers
Digital Controllers
143 Electric/Electronic Controllers
Pneumatic Receiver-Controllers
Thermostats
Auxiliary Control Devices
144 Fig. 16 Dead-Band Thermostat
Relays
Equipment Status
Switches
Timers/Time Clocks
Transducers
145 Fig. 17 Response of Electronic-to-Pneumatic Transducer (EPT)
Fig. 18 Electronic and Pneumatic Control Components Combined with Electronic-to-Pneumatic Transducer (EPT)
Other Auxiliary Control Devices
Fig. 19 Retrofit of Existing Pneumatic Control with Electronic Sensors and Controllers
146 Communication Networks for Building Automation Systems
Communication Protocols
OSI Network Model
Network Structure
147 Fig. 20 OSI Reference Model
Fig. 21 Hierarchical Network
148 Connections Between BAS Networks and Other Computer Networks
Transmission Media
Table 1 Comparison of Fiber Optic Technology
149 Specifying BAS Networks
Specification Method
Communication Tasks
Approaches to Interoperability
150 Table 2 Some Standard Communication Protocols Applicable to BAS
Standard Protocols
Gateways and Interfaces
Specifying Building Automation Systems
Commissioning
Tuning
Tuning Proportional, PI, and PID Controllers
151 Fig. 22 Response of Discharge Air Temperature to Step Change in Set Points at Various Proportional Constants with No Integral Action
Fig. 23 Open-Loop Step Response Versus Time
Tuning Digital Controllers
152 Fig. 24 Response of Discharge Air Temperature to Step Change in Set Points at Various Integral Constants with Fixed Proportional Constant
Computer Modeling of Control Systems
Codes and Standards
References
Bibliography
155 SI_F13_Ch08
Acoustical Design Objective
Characteristics of Sound
Levels
Sound Pressure and Sound Pressure Level
Table 1 Typical Sound Pressures and Sound Pressure Levels
156 Frequency
Speed
Wavelength
Table 2 Examples of Sound Power Outputs and Sound Power Levels
Sound Power and Sound Power Level
Sound Intensity and Sound Intensity Level
157 Combining Sound Levels
Table 3 Combining Two Sound Levels
Resonances
Absorption and Reflection of Sound
158 Room Acoustics
Acoustic Impedance
Measuring Sound
Instrumentation
Time Averaging
Spectra and Analysis Bandwidths
159 Table 4 Midband and Approximate Upper and Lower Cutoff Frequencies for Octave and 1/3 Octave Band Filters
Fig. 1 Curves Showing A- and C-Weighting Responses for Sound Level Meters
Table 5 A-Weighting for 1/3 Octave and Octave Bands
Sound Measurement Basics
160 Table 6 Combining Decibels to Determine Overall Sound Pressure Level
Table 7 Guidelines for Determining Equipment Sound Levels in the Presence of Contaminating Background Sound
Measurement of Room Sound Pressure Level
161 Measurement of Acoustic Intensity
Determining Sound Power
Free-Field Method
Reverberation Room Method
162 Progressive Wave (In-Duct) Method
Sound Intensity Method
Measurement Bandwidths for Sound Power
Converting from Sound Power to Sound Pressure
163 Sound Transmission Paths
Spreading Losses
Direct Versus Reverberant Fields
Airborne Transmission
164 Ductborne Transmission
Room-to-Room Transmission
Structureborne Transmission
Flanking Transmission
Typical Sources of Sound
Source Strength
Directivity of Sources
Acoustic Nearfield
165 Controlling Sound
Terminology
Enclosures and Barriers
Partitions
166 Fig. 2 Sound Transmission Loss Spectra for Single Layers of Some Common Materials
Fig. 3 Contour for Determining Partition’s STC
167 Sound Attenuation in Ducts and Plenums
Standards for Testing Duct Silencers
System Effects
168 Human Response to Sound
Noise
Predicting Human Response to Sound
Sound Quality
Loudness
Fig. 4 Free-Field Equal Loudness Contours for Pure Tones
169 Fig. 5 Equal Loudness Contours for Relatively Narrow Bands of Random Noise
Table 8 Subjective Effect of Changes in Sound Pressure Level, Broadband Sounds (Frequency 250 ³ Hz)
Acceptable Frequency Spectrum
Fig. 6 Frequencies at Which Various Types of Mechanical and Electrical Equipment Generally Control Sound Spectra
Sound Rating Systems and Acoustical Design Goals
170 A-Weighted Sound Level (dBA)
Noise Criteria (NC) Method
Fig. 7 NC (Noise Criteria) Curves and Sample Spectrum (Curve with Symbols)
Room Criterion (RC) Method
Criteria Selection Guidelines
171 Fig. 8 Single-Degree-of-Freedom System
Fundamentals of Vibration
Single-Degree-of-Freedom Model
Mechanical Impedance
Natural Frequency
Fig. 9 Vibration Transmissibility T as Function of fd / fn
172 Fig. 10 Effect of Mass on Transmissibility
Practical Application for Nonrigid Foundations
Fig. 11 Two-Degrees-of-Freedom System
Vibration Measurement Basics
173 Fig. 12 Transmissibility T as Function of fd /fn1 with k2 /k1 = 2 and M2 /M1 = 0.5
Fig. 13 Transmissibility T as Function of fd /fn1 with k2/k1 = 10 and M2/M1 = 40
Symbols
174 References
Bibliography
177 SI_F13_Ch09
Human Thermoregulation
178 Energy Balance
Fig. 1 Thermal Interaction of Human Body and Environment
Thermal Exchanges with Environment
179 Body Surface Area
Sensible Heat Loss from Skin
Evaporative Heat Loss from Skin
180 Respiratory Losses
Alternative Formulations
181 Table 1 Parameters Used to Describe Clothing
Table 2 Relationships Between Clothing Parameters
Table 3 Skin Heat Loss Equations
Total Skin Heat Loss
182 Fig. 2 Constant Skin Heat Loss Line and Its Relationship to toh and ET*
Engineering Data and Measurements
Metabolic Rate and Mechanical Efficiency
Table 4 Typical Metabolic Heat Generation for Various Activities
183 Table 5 Heart Rate and Oxygen Consumption at Different Activity Levels
Heat Transfer Coefficients
184 Clothing Insulation and Permeation Efficiency
Table 6 Equations for Convection Heat Transfer Coefficients
Table 7 Typical Insulation and Permeability Values for Clothing Ensembles
185 Table 8 Garment Insulation Values
186 Total Evaporative Heat Loss
Environmental Parameters
187 Fig. 3 Mean Value of Angle Factor Between Seated Person and Horizontal or Vertical Rectangle when Person Is Rotated Around Vertical Axis
Fig. 4 Analytical Formulas for Calculating Angle Factor for Small Plane Element
Conditions for Thermal Comfort
188 Table 9 Equations for Predicting Thermal Sensation Y of Men, Women, and Men and Women Combined
Fig. 5 ASHRAE Summer and Winter Comfort Zones
189 Fig. 6 Air Speed to Offset Temperatures Above Warm- Temperature Boundaries of Figure 5
Thermal Complaints
Table 10 Model Parameters
Thermal Comfort and Task Performance
Fig. 7 Predicted Rate of Unsolicited Thermal Operating Complaints
190 Fig. 8 Relative Performance of Office Work Performance versus Deviation from Optimal Comfort Temperature Tc
Thermal Nonuniform Conditions and Local Discomfort
Asymmetric Thermal Radiation
Fig. 9 Percentage of People Expressing Discomfort due to Asymmetric Radiation
Draft
191 Fig. 10 Percentage of People Dissatisfied as Function of Mean Air Velocity
Fig. 11 Draft Conditions Dissatisfying 15% of Population (PD = 15%)
Vertical Air Temperature Difference
Fig. 12 Percentage of Seated People Dissatisfied as Function of Air Temperature Difference Between Head and Ankles
192 Warm or Cold Floors
Fig. 13 Percentage of People Dissatisfied as Function of Floor Temperature
Secondary Factors Affecting Comfort
Day-to-Day Variations
Age
Adaptation
193 Sex
Seasonal and Circadian Rhythms
Prediction of Thermal Comfort
Steady-State Energy Balance
Fig. 14 Air Velocities and Operative Temperatures at 50% rh Necessary for Comfort (PMV = 0) of Persons in Summer Clothing at Various Levels of Activity
194 Fig. 15 Air Temperatures and Mean Radiant Temperatures Necessary for Comfort (PMV = 0) of Sedentary Persons in Summer Clothing at 50% rh
Fig. 16 Predicted Percentage of Dissatisfied (PPD) as Function of Predicted Mean Vote (PMV)
Two-Node Model
195 Multisegment Thermal Physiology and Comfort Models
196 Adaptive Models
Zones of Comfort and Discomfort
Fig. 17 Effect of Environmental Conditions on Physiological Variables
Fig. 18 Effect of Thermal Environment on Discomfort
Environmental Indices
197 Effective Temperature
Fig. 19 Effective Temperature ET* and Skin Wettedness w
Humid Operative Temperature
Heat Stress Index
Index of Skin Wettedness
198 Table 11 Evaluation of Heat Stress Index
Wet-Bulb Globe Temperature
Fig. 20 Recommended Heat Stress Exposure Limits for Heat Acclimatized Workers
Wet-Globe Temperature
199 Table 12 Equivalent Wind Chill Temperatures of Cold Environments
Wind Chill Index
Special Environments
Infrared Heating
Fig. 21 Variation in Skin Reflection and Absorptivity for Blackbody Heat Sources
200 Fig. 22 Comparing Thermal Inertia of Fat, Bone, Moist Muscle, and Excised Skin to That of Leather and Water
Fig. 23 Thermal Inertias of Excised, Bloodless, and Normal Living Skin
201 Comfort Equations for Radiant Heating
Personal Environmental Control (PEC) Systems
202 Fig. 24 Recommended Temperature Set Points for HVAC with PEC Systems and Energy Savings from Extending HVAC Temperature Set Points
Hot and Humid Environments
Fig. 25 Schematic Design of Heat Stress and Heat Disorders
203 Fig. 25 Acclimatization to Heat Resulting from Daily Exposure of Five Subjects to Extremely Hot Room
Extremely Cold Environments
204 Symbols
205 Codes and Standards
References
208 Bibliography
209 SI_F13_Ch10
Background
210 Table 1 Selected Illnesses Related to Exposure in Buildings
211 Descriptions of Selected Health Sciences
Epidemiology and Biostatistics
Industrial, Occupational, and Environmental Medicine or Hygiene
Microbiology
Toxicology
212 Hazard Recognition, Analysis, and Control
Hazard Control
Airborne Contaminants
Particles
213 Industrial Environments
Synthetic Vitreous Fibers
214 Table 2 OSHA Permissible Exposure Limits (PELs) for Particles
Combustion Nuclei
Particles in Nonindustrial Environments
215 Bioaerosols
217 Table 3 Pathogens with Potential for Airborne Transmission
218 Gaseous Contaminants
Industrial Environments
219 Table 4 Comparison of Indoor Environment Standards and Guidelines
Nonindustrial Environments
221 Table 5 Selected SVOCs Found in Indoor Environments
222 Table 6 Indoor Concentrations and Body Burden of Selected Semivolatile Organic Compounds
224 Table 7 Inorganic Gas Comparative Criteria
Outdoor Air Ventilation and Health
225 Physical Agents
Thermal Environment
Range of Healthy Living Conditions
Fig. 1 Related Human Sensory, Physiological, and Health Responses for Prolonged Exposure
Hypothermia
226 Hyperthermia
Seasonal Patterns
Increased Deaths in Heat Waves
Fig. 2 Isotherms for Comfort, Discomfort, Physiological Strain, Effective Temperature (ET*), and Heat Stroke Danger Threshold
227 Effects of Thermal Environment on Specific Diseases
Injury from Hot and Cold Surfaces
Table 8 Approximate Surface Temperature Limits to Avoid Pain and Injury
Electrical Hazards
Mechanical Energies
Vibration
228 Fig. 3 Factors Affecting Acceptability of Building Vibration
Standard Limits
Fig. 4 Acceleration Perception Thresholds and Acceptability Limits for Horizontal Oscillations
229 Fig. 5 Median Perception Thresholds to Horizontal (Solid Lines) and Vertical (Dashed Line) Vibrations
Table 9 Ratios of Acceptable to Threshold Vibration Levels
Sound and Noise
Fig. 6 Mechanical Energy Spectrum
230 Fig. 7 Electromagnetic Spectrum
Electromagnetic Radiation
Table 10 Energy, Wavelength, and Frequency Ranges for Electromagnetic Radiation
Ionizing Radiation
Table 11 Action Levels for Radon Concentration Indoors
231 Nonionizing Radiation
Fig. 8 Maximum Permissible Levels of Radio Frequency Radiation for Human Exposure
232 Ergonomics
References
237 Bibliography
239 SI_F13_Ch11
Classes of Air Contaminants
240 Particulate Contaminants
Particulate Matter
Solid Particles
Liquid Particles
Complex Particles
Sizes of Airborne Particles
241 Fig. 1 Typical Outdoor Aerosol Composition by Particle Size Fraction
Fig. 2 Relative Deposition Efficiencies of Different-Sized Particles in the Three Main Regions of the Human Respiratory System, Calculated for Moderate Activity Level
242 Fig. 3 Sizes of Indoor Particles
Particle Size Distribution
243 Table 1 Approximate Particle Sizes and Time to Settle 1 m
Table 2 Relation of Screen Mesh to Sieve Opening Size
Fig. 4 Typical Urban Outdoor Distributions of Ultrafine or Nuclei (n) Particles, Fine or Accumulation (a) Particles, and Coarse (c) Particles
Units of Measurement
Measurement of Airborne Particles
244 Typical Particle Levels
Bioaerosols
245 Table 3 Common Molds on Water-Damaged Building Materials
246 Table 4 Example Case of Airborne Fungi in Building and Outdoor Air
Controlling Exposures to Particulate Matter
Gaseous Contaminants
Harmful Effects of Gaseous Contaminants
247 Table 5 Major Chemical Families of Gaseous Air Contaminants
248 Table 6 Characteristics of Selected Gaseous Air Contaminants
Units of Measurement
249 Measurement of Gaseous Contaminants
Table 7 Gaseous Contaminant Sample Collection Techniques
250 Table 8 Analytical Methods to Measure Gaseous Contaminant Concentration
Volatile Organic Compounds
251 Table 9 Classification of Indoor Organic Contaminants by Volatility
252 Table 10 VOCs Commonly Found in Buildings
Controlling Exposure to VOCs
Semivolatile Organic Compounds
Inorganic Gases
253 Controlling Exposures to Inorganic Gases
Air Contaminants by Source
Outdoor Air Contaminants
Industrial Air Contaminants
254 Table 11 Typical U.S. Outdoor Concentrations of Selected Gaseous Air Contaminants
Table 12 National Ambient Air Quality Standards for the United States
Nonindustrial Indoor Air Contaminants
255 Table 13 Sources and Indoor and Outdoor Concentrations of Selected Indoor Contaminants
256 Flammable Gases and Vapors
Combustible Dusts
257 Table 14 Flammable Limits of Some Gases and Vapors
Radioactive Air Contaminants
Radon
258 Soil Gases
References
261 Bibliography
263 SI_F13_Ch12
Odor Sources
Sense of Smell
Olfactory Stimuli
Table 1 Odor Thresholds, ACGIH TLVs, and TLV/Threshold Ratios of Selected Gaseous Air Pollutants
264 Anatomy and Physiology
Olfactory Acuity
Factors Affecting Odor Perception
Humidity and Temperature
Sorption and Release of Odors
Emotional Responses to Odors
265 Odor Sensation Attributes
Detectability
Intensity
266 Table 2 Examples of Category Scales
Fig. 1 Standardized Function Relating Perceived Magnitude to Concentration of 1-Butanol
Fig. 2 Labeled Magnitude Scale
Fig. 3 Panelist Using Dravnieks Binary Dilution Olfactometer
Character
267 Fig. 4 Matching Functions Obtained with Dravnieks Olfactometer
Hedonics
Dilution of Odors by Ventilation
Odor Concentration
Analytical Measurement
Odor Units
268 Olf Units
Fig. 5 Percentage of Dissatisfied Persons as a Function of Ventilation Rate per Standard Person (i.e., per Olf)
Table 3 Sensory Pollution Load from Different Pollution Sources
References
270 Bibliography
271 SI_F13_Ch13
295 SI_F13_Ch14
343 SI_F13_Ch15
Fenestration Components
Fig. 1 Construction Details of Typical Double-Glazing Unit
Glazing Units
344 Framing
Shading
345 Fig. 2 Various Framing Configurations for Residential Fenestration
Determining Fenestration Energy Flow
U-Factor (Thermal Transmittance)
Determining Fenestration U-Factors
Center-of-Glass U-Factor
346 Fig. 3 Center-of-Glass U-Factor for Vertical Double- and Triple-Pane Glazing Units
Edge-of-Glass U-Factor
Frame U-Factor
347 Table 1 Representative Fenestration Frame U-Factors in W/(m2 · K), Vertical Orientation
Curtain Wall Construction
Surface and Cavity Heat Transfer Coefficients
348 Table 2 Indoor Surface Heat Transfer Coefficient hi in W/(m2 · K), Vertical Orientation (Still Air Conditions)
349 Table 3 Air Space Coefficients for Horizontal Heat Flow
350 Table 4 U-Factors for Various Fenestration Products in W/(m2 · K)
351 Table 4 U-Factors for Various Fenestration Products in W/(m2 · K) (Concluded )
352 Fig. 4 Frame Widths for Standard Fenestration Units
Table 5 Glazing U-Factors for Various Wind Speeds in W/(m2 · K)
353 Representative U-Factors for Doors
354 Table 6 Design U-Factors of Swinging Doors in W/(m2 · K)
Table 7 Design U-factors for Revolving Doors in W/(m2·K)
Table 8 Design U-factors for Double-Skin Steel Emergency Exit Doors in W/(m2·K)
Fig. 5 Details of Stile-and-Rail Door
355 Table 9 Design U-factors for Double-Skin Steel Garage and Aircraft Hanger Doors in W/(m2·K)
Solar Heat Gain and Visible Transmittance
Solar-Optical Properties of Glazing
Optical Properties of Single Glazing Layers
356 Fig. 6 Optical Properties of a Single Glazing Layer
Fig. 7 Transmittance and Reflectance of Glass Plate
Fig. 8 Variations with Incident Angle of Solar-Optical Properties for (A) Double-Strength Sheet Glass, (B) Clear Plate Glass, and (C) Heat-Absorbing Plate Glass
Fig. 9 Spectral Transmittances of Commercially Available Glazings
357 Fig. 10 Spectral Transmittances and Reflectances of Strongly Spectrally Selective Commercially Available Glazings
Optical Properties of Glazing Systems
358 Fig. 11 Solar Spectrum, Human Eye Response Spectrum, Scaled Blackbody Radiation Spectrum, and Idealized Glazing Reflectance Spectrum
Fig. 12 Demonstration of Two Spectrally Selective Glazing Concepts, Showing Ideal Spectral Transmittances for Glazings Intended for Hot and Cold Climates
359 Solar Heat Gain Coefficient
Calculation of Solar Heat Gain Coefficient
360 Diffuse Radiation
Fig. 13 Components of Solar Radiant Heat Gain with Double-Pane Fenestration, Including Both Frame and Glazing Contributions
Solar Gain Through Frame and Other Opaque Elements
Solar Heat Gain Coefficient, Visible Transmittance, and Spectrally Averaged Solar-Optical Property Values
361 Table 10 Visible Transmittance (Tv), Solar Heat Gain Coefficient (SHGC), Solar Transmittance (T ), Front Reflectance (R f ), Back Reflectance (Rb ), and Layer Absorptance (A) for Glazing and Window Systems
369 Airflow Windows
Skylights
Glass Block Walls
Table 11 Solar Heat Gain Coefficients for Domed Horizontal Skylights
370 Table 12 Solar Heat Gain Coefficients for Standard Hollow Glass Block Wall Panels
Plastic Materials for Glazing
Calculation of Solar Heat Gain
Fig. 14 Instantaneous Heat Balance for Sunlit Glazing Material
371 Opaque Fenestration Elements
Shading and Fenestration Attachments
Shading
Overhangs and Glazing Unit Recess: Horizontal and Vertical Projections
Fig. 15 Profile Angle for South-Facing Horizontal Projections
372 Fig. 16 Vertical and Horizontal Projections and Related Profile Angles for Vertical Surface Containing Fenestration
Fenestration Attachments
373 Simplified Methodology
Fig. 17 Comparison of IAC and Solar Transmission Values from ASHWAT Model Versus Measurements
Slat-Type Sunshades
374 Fig. 18 Geometry of Slat-Type Sunshades
Drapery
Fig. 19 Designation of Drapery Fabrics
375 Fig. 20 Drapery Fabric Properties
Roller Shades and Insect Screens
Fig. 21 Geometry of Drapery Fabrics
Visual and Thermal Controls
Operational Effectiveness of Shading Devices
388 Table 13G IAC Values for Draperies, Roller Shades, and Insect Screens (Continued )
389 Table 13G IAC Values for Draperies, Roller Shades, and Insect Screens (Continued )
390 Indoor Shading Devices
Table 14 Summary of Environmental Control Capabilities of Draperies
391 Fig. 22 Noise Reduction Coefficient Versus Openness Factor for Draperies
Double Drapery
Air Leakage
Infiltration Through Fenestration
Indoor Air Movement
392 Daylighting
Daylight Prediction
Fig. 23 Window-to-Wall Ratio Versus Annual Electricity Use in kWh/(m2 · floor · year)
393 Light Transmittance and Daylight Use
394 Fig. 24 Visible Transmittance Versus SHGC for Several Glazings with Different Spectral Selectivities
Fig. 25 Visible Transmittance Versus SHGC at Various Spectral Selectivities
Table 15 Spectral Selectivity of Several Glazings
395 Selecting Fenestration
Annual Energy Performance
Simplified Techniques for Rough Estimates of Fenestration Annual Energy Performance
Simplified Residential Annual Energy Performance Ratings
396 Condensation Resistance
Fig. 26 Temperature Distribution on Indoor Surfaces of Glazing Unit
397 Fig. 27 Minimum Indoor Surface Temperatures Before Condensation Occurs
Fig. 28 Minimum Condensation Resistance Requirements (th = 20°C)
Occupant Comfort and Acceptance
398 Fig. 29 Location of Fenestration Product Reveals and Blinds/ Drapes and Their Effect on Condensation Resistance
Fig. 30 Fenestration Effects on Thermal Comfort: Long-Wave Radiation, Solar Radiation, Convective Draft
399 Table 16 Sound Transmittance Loss for Various Types of Glass
Sound Reduction
Strength and Safety
Life-Cycle Costs
Durability
400 Supply and Exhaust Airflow Windows
Codes and Standards
National Fenestration Rating Council (NFRC)
United States Energy Policy Act (EPAct)
401 The ICC 2012 International Energy Conservation Code
ASHRAE/IES Standard 90.1-2010
ASHRAE/USGBC/IES Standard 189.1-2009
ICC 2012 International Green Construction Code™
Canadian Standards Association (CSA)
Symbols
402 References
404 Bibliography
405 SI_F13_Ch16
Sustainability Rating Systems
Basic Concepts and Terminology
Ventilation and Infiltration
406 Fig. 1 Two-Space Building with Mechanical Ventilation, Infiltration, and Exfiltration
Ventilation Air
Forced-Air Distribution Systems
Fig. 2 Simple All-Air Air-Handling Unit with Associated Airflows
Outdoor Air Fraction
407 Room Air Movement
Fig. 3 Displacement Flow Within a Space
Fig. 4 Entrainment Flow Within a Space
Fig. 5 Underfloor Air Distribution to Occupied Space Above
Air Exchange Rate
408 Time Constants
Averaging Time-Varying Ventilation
Age of Air
409 Air Change Effectiveness
Tracer Gas Measurements
Decay or Growth
410 Constant Concentration
Constant Injection
Multizone Air Exchange Measurement
Driving Mechanisms for Ventilation and Infiltration
Stack Pressure
411 Wind Pressure
412 Mechanical Systems
Combining Driving Forces
413 Neutral Pressure Level
Fig. 6 Distribution of Indoor and Outdoor Pressures over Height of Building
414 Fig. 7 Compartmentation Effect in Buildings
Thermal Draft Coefficient
Indoor Air Quality
415 Protection from Extraordinary Events
Thermal Loads
416 Effect on Envelope Insulation
Infiltration Degree-Days
Natural Ventilation
Natural Ventilation Openings
417 Ceiling Heights
Required Flow for Indoor Temperature Control
Airflow Through Large Intentional Openings
Flow Caused by Wind Only
Flow Caused by Thermal Forces Only
418 Fig. 8 Increase in Flow Caused by Excess Area of One Opening over the Other
Natural Ventilation Guidelines
Hybrid Ventilation
Residential Air Leakage
Envelope Leakage Measurement
419 Fig. 9 Airflow Rate Versus Pressure Difference Data from Whole-House Pressurization Test
Airtightness Ratings
Conversion Between Ratings
420 Building Air Leakage Data
Fig. 10 Envelope Leakage Measurements
Air Leakage of Building Components
421 Leakage Distribution
Multifamily Building Leakage
Controlling Air Leakage
422 Residential Ventilation
Fig. 11 Histogram of Infiltration Values for Then-New Construction
Fig. 12 Histogram of Infiltration Values for Low-Income Housing
423 Residential Ventilation Zones
Fig. 13 Airtightness Zones for Residences in the United States
Shelter in Place
424 Safe Havens
Residential IAQ Control
Source Control
425 Local Exhaust
Whole-House Ventilation
Table 1 Continuous Exhaust Airflow Rates
Table 2 Intermittent Exhaust Airflow Rates
426 Table 3 Total Ventilation Air Requirements
Air Distribution
Selection Principles for Residential Ventilation Systems
Simplified Models of Residential Ventilation and Infiltration
Empirical Models
Multizone Models
427 Single-Zone Models
Superposition of Wind and Stack Effects
Residential Calculation Examples
Table 4 Basic Model Stack Coefficient Cs
Table 5 Local Shelter Classes
428 Table 6 Basic Model Wind Coefficient Cw
Table 7 Enhanced Model Wind Speed Multiplier G
Table 8 Enhanced Model Stack and Wind Coefficients
429 Table 9 Enhanced Model Shelter Factor s
Combining Residential Infiltration and Mechanical Ventilation
Typical Practice
Commercial and Institutional Air Leakage
Envelope Leakage
430 Air Leakage Through Internal Partitions
Fig. 14 Air Leakage Rates of Elevator Shaft Walls
Table 10 Air Leakage Areas for Internal Partitions in Commercial Buildings (at 75 Pa and CD = 0.65)
Air Leakage Through Exterior Doors
Air Leakage Through Automatic Doors
431 Fig. 15 Air Leakage Rate of Door Versus Average Crack Width
Fig. 16 Airflow Coefficient for Automatic Doors
Fig. 17 Pressure Factor for Automatic Doors
432 Air Exchange Through Air Curtains
Commercial and Institutional Ventilation
Ventilation Rate Procedure
Multiple Spaces
433 Survey of Ventilation Rates in Office Buildings
Office Building Example
Location
Building
Occupancy
Infiltration
434 Local Exhausts
435 Ventilation
436 Symbols
References
441 Bibliography
443 SI_F13_Ch17
Residential Features
Calculation Approach
444 Other Methods
Residential Heat Balance (RHB) Method
Residential Load Factor (RLF) Method
445 Table 1 RLF Limitations
Common Data and Procedures
General Guidelines
Basic Relationships
Design Conditions
446 Building Data
447 Table 2 Typical Fenestration Characteristics
Load Components
448 Table 3 Unit Leakage Areas
Table 4 Evaluation of Exposed Surface Area
Table 5 Typical IDF Values, L/(s · cm2)
450 Table 6 Typical Duct Loss/Gain Factors
Cooling Load
Peak Load Computation
Opaque Surfaces
Slab Floors
451 Table 7 Opaque Surface Cooling Factor Coefficients
Table 8 Roof Solar Absorptance aroof
Transparent Fenestration Surfaces
Table 9 Peak Irradiance Equations
Table 10 Peak Irradiance, W/m2
452 Table 11 Exterior Attachment Transmission
Table 12 Shade Line Factors (SLFs)
Table 13 Fenestration Solar Load Factors FFs
Infiltration and Ventilation
Internal Gain
Air Distribution System: Heat Gain
Total Latent Load
453 Table 14 Interior Attenuation Coefficients (IACcl)
Table 15 Summary of RLF Cooling Load Equations
Summary of RLF Cooling Load Equations
Heating Load
Exterior Surfaces Above Grade
Below-Grade and On-Grade Surfaces
Surfaces Adjacent to Buffer Space
454 Ventilation and Infiltration
Humidification
Pickup Load
Summary of Heating Load Procedures
Load Calculation Example
Solution
Fig. 1 Example House
455 Table 16 Summary of Heating Load Calculation Equations
Table 17 Example House Characteristics
Table 18 Example House Design Conditions
Table 19 Example House Component Quantities
456 Table 20 Example House Opaque Surface Factors
Table 21 Example House Window Factors
Table 22 Example House Envelope Loads
Table 23 Example House Total Sensible Loads
Symbols
457 References
459 SI_F13_Ch18
Cooling Load Calculation Principles
Terminology
Heat Flow Rates
460 Fig. 1 Origin of Difference Between Magnitude of Instantaneous Heat Gain and Instantaneous Cooling Load
Time Delay Effect
Cooling Load Calculation Methods
Fig. 2 Thermal Storage Effect in Cooling Load from Lights
Cooling Load Calculations in Practice
461 Data Assembly
Internal Heat Gains
People
Lighting
Instantaneous Heat Gain from Lighting
462 Table 1 Representative Rates at Which Heat and Moisture Are Given Off by Human Beings in Different States of Activity
463 Table 2 Lighting Power Densities Using Space-by-Space Method
Fig. 3 Lighting Heat Gain Parameters for Recessed Fluorescent Luminaire Without Lens
464 Table 3 Lighting Heat Gain Parameters for Typical Operating Conditions
Electric Motors
Table 4 Minimum Nominal Full-Load Efficiency for 60 HZ NEMA General Purpose Electric Motors (Subtype I) Rated 600 Volts or Less (Random Wound)*
Overloading or Underloading
465 Radiation and Convection
Appliances
Cooking Appliances
Hospital and Laboratory Equipment
467 Office Equipment
468 Table 6 Recommended Heat Gain from Typical Medical Equipment
Table 7 Recommended Heat Gain from Typical Laboratory Equipment
469 Table 8 Recommended Heat Gain from Typical Computer Equipment
Table 9 Recommended Heat Gain from Typical Laser Printers and Copiers
470 Table 10 Recommended Heat Gain from Miscellaneous Office Equipment
Fig. 4 Office Equipment Load Factor Comparison
Table 11 Recommended Load Factors for Various Types of Offices
Table 12 Recommended Diversity Factors for Office Equipment
Infiltration and Moisture Migration Heat Gains
Infiltration
471 Standard Air Volumes
Heat Gain Calculations Using Standard Air Values
Elevation Correction Examples
Latent Heat Gain from Moisture Diffusion
472 Other Latent Loads
Fenestration Heat Gain
Fenestration Direct Solar , Diffuse Solar , and Conductive Heat Gains
Exterior Shading
Heat Balance Method
473 Assumptions
Elements
Outdoor-Face Heat Balance
Fig. 5 Schematic of Heat Balance Processes in Zone
Wall Conduction Process
474 Fig. 6 Schematic of Wall Conduction Process
Indoor-Face Heat Balance
Using SHGC to Calculate Solar Heat Gain
475 Table 13 Single-Layer Glazing Data Produced by WINDOW 5.2
Air Heat Balance
476 General Zone for Load Calculation
Fig. 7 Schematic View of General Heat Balance Zone
Mathematical Description
Conduction Process
Heat Balance Equations
477 Overall HB Iterative Solution
Input Required
478 Radiant Time Series (RTS) Method
Assumptions and Principles
Overview
479 Fig. 8 Overview of Radiant Time Series Method
Fig. 9 CTS for Light to Heavy Walls
RTS Procedure
480 Table 14 Recommended Radiative/Convective Splits for Internal Heat Gains
Fig. 10 CTS for Walls with Similar Mass and Increasing Insulation
Heat Gain Through Exterior Surfaces
Fig. 11 RTS for Light to Heavy Construction
Sol-Air Temperature
481 Table 15 Solar Absorptance Values of Various Surfaces
Calculating Conductive Heat Gain Using Conduction Time Series
Heat Gain Through Interior Surfaces
Floors
482 Table 16 Wall Conduction Time Series (CTS)
Calculating Cooling Load
483 Table 16 Wall Conduction Time Series (CTS) (Concluded)
484 Table 17 Roof Conduction Time Series (CTS)
485 Table 18 Thermal Properties and Code Numbers of Layers Used in Wall and Roof Descriptions for Tables 16 and 17
486 Heating Load Calculations
Table 19 Representative Nonsolar RTS Values for Light to Heavy Construction
487 Table 20 Representative Solar RTS Values for Light to Heavy Construction
Table 21 RTS Representative Zone Construction for Tables 19 and 20
Heat Loss Calculations
Outdoor Design Conditions
488 Indoor Design Conditions
Calculation of Transmission Heat Losses
Fig. 12 Heat Flow from Below-Grade Surface
Fig. 13 Ground Temperature Amplitude
489 Fig. 14 Below-Grade Parameters
Table 22 Average U-Factor for Basement Walls with Uniform Insulation
Table 23 Average U-Factor for Basement Floors
Table 24 Heat Loss Coefficient Fp of Slab Floor Construction
Infiltration
490 Heating Safety Factors and Load Allowances
Other Heating Considerations
System Heating and Cooling Load Effects
Table 25 Common Sizing Calculations in Other Chapters
Zoning
Ventilation
Air Heat Transport Systems
On/Off Control Systems
Variable-Air-Volume Systems
491 Constant-Air-Volume Reheat Systems
Mixed Air Systems
Heat Gain from Fans
492 Duct Surface Heat Transfer
Duct Leakage
Ceiling Return Air Plenum Temperatures
Fig. 15 Schematic Diagram of Typical Return Air Plenum
493 Ceiling Plenums with Ducted Returns
Underfloor Air Distribution Systems
Plenums in Load Calculations
Central Plant
Piping
Pumps
Example Cooling and Heating Load Calculations
494 Table 26 Summary of RTS Load Calculation Procedures
495 Table 26 Summary of RTS Load Calculation Procedures (Concluded )
Single-Room Example
Room Characteristics
496 Fig. 16 Single-Room Example Office
Cooling Loads Using RTS Method
497 Table 27 Monthly/Hourly Design Temperatures (5% Conditions) for Atlanta, GA, °C
Table 28 Cooling Load Component: Lighting, kW
501 Table 30 Window Component of Heat Gain (No Blinds or Overhang)
Table 31 Window Component of Cooling Load (No Blinds or Overhang)
502 Table 32 Window Component of Cooling Load (With Blinds and Overhang)
Table 33 Window Component of Cooling Load (With Blinds and Overhang)
503 Table 34 Single-Room Example Cooling Load (July 3:00 pm) for ASHRAE Example Office Building, Atlanta, GA
Single-Room Example Peak Heating Load
504 Table 35 Single-Room Example Peak Cooling Load (Sept. 5:00 pm) for ASHRAE Example Office Building, Atlanta, GA
Whole-Building Example
Design Process and Shell Building Definition
505 Table 36 Block Load Example: Envelope Area Summary, m2
Table 37 Block Load Example—First Floor Loads for ASHRAE Example Office Building, Atlanta, GA
506 Table 38 Block Load Example—Second Floor Loads for ASHRAE Example Office Building, Atlanta, GA
Table 39 Block Load Example—Overall Building Loads for ASHRAE Example Office Building, Atlanta, GA
Tenant Fit Design Process and Definition
Room-by-Room Cooling and Heating Loads
507 Conclusions
Previous Cooling Load Calculation Methods
References
509 Bibliography
510 Building Example Drawings
Fig. 17 First Floor Shell and Core Plan
511 Fig. 18 Second Floor Shell and Core Plan
512 Fig. 19 East/West Elevations, Elevation Details, and Perimeter Section
513 Fig. 20 First Floor Tenant Plan
514 Fig. 21 Second Floor Tenant Plan
515 Fig. 22 3D View
517 SI_F13_Ch19
General Considerations
Models and Approaches
Fig. 1 Flow Chart for Building Energy Simulation Program
518 Characteristics of Models
Forward Models
Data-Driven Models
519 Choosing an Analysis Method
Selecting Energy Analysis Computer Programs
Tools for Energy Analysis
520 Table 1 Classification of Analysis Methods For Building Energy Use
Component Modeling and Loads
Calculating Space Sensible Loads
521 Heat Balance Method
Weighting-Factor Method
522 Normalized Coefficients of Space Air Transfer Functions
Comprehensive Room Transfer Function
523 Thermal-Network Methods
Ground Heat Transfer
524 Secondary System Components
Fans, Pumps, and Distribution Systems
Fig. 2 Part-Load Curves for Typical Fan Operating Strategies
525 Fig. 3 Fan Part-Load Curve Obtained from Measured Field Data under ASHRAE RP-823
Heat and Mass Transfer Components
526 Application to Cooling and Dehumidifying Coils
Fig. 4 Psychrometric Schematic of Cooling Coil Processes
527 Primary System Components
Modeling Strategies
528 Table 2 Correlation Coefficients for Off-Design Relationships
Fig. 5 Possible Part-Load Power Curves
Boiler Model
Fig. 6 Boiler Steady-State Modeling
529 Vapor Compression Chiller Models
530 Fig. 7 Chiller Model Using Elementary Components
Fig. 8 General Schematic of Compressor
Fig. 9 Schematic of Reciprocating Compressor Model
531 Cooling Tower Model
Variable-Speed Vapor-Compression Heat Pump Model
System Modeling
Overall Modeling Strategies
532 Fig. 10 Overall Modeling Strategy
Degree-Day and Bin Methods
Balance Point Temperature
Annual Degree-Day Method
533 Fig. 11 Cooling Load as Function of Outdoor Temperature to
Fig. 12 Variation of Balance Point Temperature and Internal Gains for a Typical House
534 Fig. 13 Annual Heating Days DDh(tbal) as Function of Balance Temperature tbal
535 Sources of Degree-Day Data
Bin Method
Fig. 14 Heat Pump Capacity and Building Load
536 Table 3 Sample Annual Bin Data
Table 4 Calculation of Annual Heating Energy Consumption for Example 2
Correlation Methods
Simulating Secondary and Primary Systems
537 Modeling of System Controls
Integration of System Models
Fig. 15 Schematic of Variable-Air-Volume System with Reheat
538 Fig. 16 Algorithm for Calculating Performance of VAV with System Reheat
Data-Driven Modeling
Categories of Data-Driven Methods
Empirical or “Black-Box” Approach
Calibrated Simulation Approach
539 Gray-Box Approach
Types of Data-Driven Models
Steady-State Models
540 Table 5 Single-Variate Models Applied to Utility Billing Data
Fig. 17 Steady-State, Single-Variate Models for Modeling Energy Use in Residential and Commercial Buildings
543 Dynamic Models
Examples Using Data-Driven Methods
Modeling Utility Bill Data
544 Fig. 18 Variable-Base Degree-Day Model Identification Using Electricity Utility Bills at Hospital
Neural Network Models
Fig. 19 Neural Network Prediction of Whole-Building, Hourly Chilled-Water Consumption for Commercial Building
545 Table 6 Capabilities of Different Forward and Data-Driven Modeling Methods
Model Selection
MODEL VALIDATION AND TESTING
546 Table 7 Validation Techniques
Methodological Basis
Empirical Validation
547 Analytical Verification
548 Table 8 Types of Extrapolation
Combining Empirical, Analytical, and Comparative Techniques
Fig. 20 Validation Method
Testing Model Calibration Techniques Using Synthetic Data
549 Fig. 21 Calibration Cases Conceptual Flow
550 References
555 Bibliography
559 SI_F13_Ch20
Indoor Air Quality and Sustainability
Applicable Standards and Codes
560 Fig. 1 Classification of Air Diffusion Methods
Terminology
561 Principles of Jet Behavior
Air Jet Fundamentals
562 Fig. 2 Airflow Patterns of Different Diffusers
Table 1 Recommended Values for Centerline Velocity Constant Kc for Commercial Supply Outlets for Fully and Partially Mixed Systems, Except UFAD
563 Fig. 3 Chart for Determining Centerline Velocities of Axial and Radial Jets
Fig. 4 Cross-Sectional Velocity Profiles for Straight-Flow Turbulent Jets
564 Isothermal Radial Flow Jets
Nonisothermal Jets
Nonisothermal Horizontal Free Jet
Comparison of Free Jet to Attached Jet
Multiple Jets
Airflow in Occupied Zone
565 Thermal Plumes
Fig. 5 Thermal Plume from Point Source
Fig. 6 Schematic Diagram of Major Flow Elements in Room with Displacement Ventilation
Symbols
566 References
Bibliography
569 SI_F13_Ch21
Bernoulli Equation
570 Head and Pressure
Static Pressure
Velocity Pressure
Total Pressure
Pressure Measurement
System Analysis
Fig. 1 Thermal Gravity Effect for Example 1
571 Fig. 2 Multiple Stacks for Example 2
Fig. 3 Multiple Stack Analysis
Fig. 4 Illustrative 6-Path, 9-Section System
572 Fig. 5 Single Stack with Fan for Examples 3 and 4
573 Fig. 6 Triple Stack System for Example 5
Pressure Changes in System
Fig. 7 Pressure Changes During Flow in Ducts
574 Fluid Resistance
Friction Losses
Darcy and Colebrook Equations
Roughness Factors
Fig. 8 Pressure Loss Correction Factor for Flexible Duct Not Fully Extended
Friction Chart
575 Table 1 Duct Roughness Factors
Fig. 9 Diffuser Installation Suggestions
Noncircular Ducts
576 Fig. 10 Friction Chart for Round Duct (r = 1.20 kg/m3 and e = 0.09 mm)
577 Fig. 11 Plot Illustrating Relative Resistance of Roughness Categories
Dynamic Losses
Local Loss Coefficients
Table 2 Circular Equivalents of Rectangular Duct for Equal Friction and Capacity*
578 Table 3 Equivalent Flat Oval Duct Dimensions*
Duct Fitting Database
579 Table 4 Duct Fitting Codes
Bends in Flexible Duct
Ductwork Sectional Losses
Darcy-Weisbach Equation
Fan/System Interface
Fan Inlet and Outlet Conditions
Fig. 12 Deficient System Performance with System Effect Ignored
Fan System Effect Coefficients
580 Fig. 13 Establishment of Uniform Velocity Profile in Straight Fan Outlet Duct
Testing, Adjusting, and Balancing Considerations
581 Fig. 14 Inlet Duct Connections Causing Inlet Spin and Corrections for Inlet Spin
Mechanical Equipment Rooms
Outdoor Air Intake and Exhaust Air Discharge Locations
Equipment Room Locations
582 Fig. 15 Comparison of Various Mechanical Equipment Room Locations
Duct System Design
Design Considerations
Space Pressure Relationships
Fire and Smoke Management
583 Duct Insulation
HVAC System Air Leakage
584 Table 5 Solution for Example 6
Fig. 16 Duct Layout for Example 6
System Component Design Velocities
585 Table 6 Typical Design Velocities for HVAC Components
Fig. 17 Criteria for Louver Sizing
Noise and Vibration Control
Duct Shape Selection
586 Fig. 18 Relative Mass of Rectangular Duct to Round Spiral Duct
Fig. 19 Maximum Airflow of Round, Flat Oval, and Rectangular Ducts as Function of Available Ceiling Space
Testing and Balancing
587 Table 7 Maximum Airflow of Round, Flat Oval and Rectangular Ducts as Function of Available Ceiling Space*
588 Duct Design Methods
Equal-Friction Method
Static Regain Method
Balancing Dampers
Constant-Volume (CV) Systems
Variable-Air-Volume (VAV) Systems
HVAC Duct Design Procedures
589 Fig. 20 Schematic for Example 7
590 Fig. 21 System Schematic with Section Numbers for Example 7
Fig. 22 Total Pressure Grade Line for Example 7
Industrial Exhaust System Duct Design
591 Fig. 23 Metalworking Exhaust System for Example 8
Fig. 24 System Schematic with Section Numbers for Example 8
592 Table 8 Total Pressure Loss Calculations by Sections for Example 7
593 Table 9 Loss Coefficient Summary by Sections for Example 7
594 Table 9 Loss Coefficient Summary by Sections for Example 7 (Continued )
References
595 Table 10 Total Pressure Loss Calculations by Sections for Example 8
Table 11 Loss Coefficient Summary by Sections for Example 8
596 Fig. 25 Total Pressure Grade Line for Example 8
Bibliography
597 SI_F13_Ch22
Pressure Drop Equations
Darcy-Weisbach Equation
Hazen-Williams Equation
Valve and Fitting Losses
598 Table 1 K Factors: Threaded Pipe Fittings
Table 2 K Factors: Flanged Welded Pipe Fittings
Table 3 Approximate Range of Variation for K Factors
599 Table 4 Summary of K Values for Ells, Reducers, and Expansions
Table 5 Summary of Test Data for Pipe Tees
600 Losses in Multiple Fittings
Fig. 1 Close-Coupled Test Configurations
Table 6 Test Summary for Loss Coefficients K and Equivalent Loss Lengths
Fig. 2 Summary Plot of Effect of Close-Coupled Configurations for 50 mm Ells
Fig. 3 Summary Plot of Effect of Close-Coupled Configurations for 100 mm Ells
Calculating Pressure Losses
601 Table 7 Test Summary for Loss Coefficients K of PVC Tees
Water Piping
Flow Rate Limitations
Table 8 Water Velocities Based on Type of Service
Table 9 Maximum Water Velocity to Minimize Erosion
Noise Generation
602 Erosion
Allowances for Aging
Water Hammer
Other Considerations
Other Piping Materials and Fluids
Hydronic System Piping
Range of Usage of Pressure Drop Charts
603 Air Separation
Fig. 4 Friction Loss for Water in Commercial Steel Pipe (Schedule 40)
Fig. 5 Friction Loss for Water in Copper Tubing (Types K, L, M)
Valve and Fitting Pressure Drop
604 Fig. 6 Friction Loss for Water in Plastic Pipe (Schedule 80)
Table 10 Equivalent Length in Metres of Pipe for 90° Elbows
Table 11 Iron and Copper Elbow Equivalents*
Service Water Piping
605 Fig. 7 Elbow Equivalents of Tees at Various Flow Conditions
Table 12 Proper Flow and Pressure Required During Flow for Different Fixtures
Table 13 Demand Weights of Fixtures in Fixture Unitsa
606 Fig. 8 Demand Versus Fixture Units, Mixed System, High Part of Curve
Fig. 9 Estimate Curves for Demand Load
Fig. 10 Section of Figure 9 on Enlarged Scale
Fig. 11 Pressure Losses in Disk-Type Water Meters
Plastic Pipe
607 Fig. 12 Variation of Pressure Loss with Flow Rate for Various Faucets and Cocks
Procedure for Sizing Cold-Water Systems
Table 14 Allowable Number of 25 mm Flush Valves Served by Various Sizes of Water Pipe*
608 Fig. 13 Flow Rate and Velocity of Steam in Schedule 40 Pipe at Saturation Pressure of 101 kPa
609 Steam Piping
Pipe Sizes
Table 15 Pressure Drops Used for Sizing Steam Pipea
Table 16 Comparative Capacity of Steam Lines at Various Pitches for Steam and Condensate Flowing in Opposite Directions
610 Table 17 Equivalent Length of Fittings to Be Added to Pipe Run
Sizing Charts
Low-Pressure Steam Piping
High-Pressure Steam Piping
Use of Basic and Velocity Multiplier Charts
Steam Condensate Systems
Two-Pipe Systems
611 Table 18 Flow Rate of Steam in Schedule 40 Pipe
Table 19 Steam Pipe Capacities for Low-Pressure Systems
612 Fig. 14 Velocity Multiplier Chart for Figure 10
Fig. 15 Types of Condensate Return Systems
613 Table 20 Return Main and Riser Capacities for Low-Pressure Systems, g/s
Table 21 Vented Dry Condensate Return for Gravity Flow Based on Manning Equation
One-Pipe Systems
614 Table 22 Vented Wet Condensate Return for Gravity Flow Based on Darcy-Weisbach Equation
Table 23 Flow Rate for Dry-Closed Returns
Gas Piping
615 Table 24 Flash Steam from Steam Trap on Pressure Drop
Table 25 Estimated Return Line Pressures
Fig. 16 Working Chart for Determining Percentage of Flash Steam (Quality)
Fuel Oil Piping
Table 26 Maximum Capacity of Gas Pipe in Litres per Second
616 Table 27 Recommended Nominal Size for Fuel Oil Suction Lines from Tank to Pump (Residual Grades No. 5 and No. 6)
Fig. 17 Typical Oil Circulating Loop
Table 28 Recommended Nominal Size for Fuel Oil Suction Lines from Tank to Pump (Distillate Grades No. 1 and No. 2)
Pipe Sizes for Heavy Oil
References
617 Bibliography
619 SI_F13_Ch23
Design Objectives and Considerations
Energy Conservation
Economic Thickness
Fig. 1 Determination of Economic Thickness of Insulation
620 Table 1 Minimum Duct Insulation R-Value,a Cooling- and Heating- Only Supply Ducts and Return Ducts
Table 2 Minimum Pipe Insulation Thickness,a mm
Personnel Protection
621 Table 3 Minimum Duct Insulation R-Value,a Combined Heating and Cooling Supply Ducts and Return Ducts
Condensation Control
Table 4 Insulation Thickness Required to Prevent Surface Condensation
Fig. 2 Relative Humidity Histogram for Charlotte, NC
622 Fig. 3 ASHRAE Psychrometric Chart No. 1
Table 5 Design Weather Data for Condensation Control
623 Freeze Prevention
Fig. 4 Time to Freeze Nomenclature
Table 6 Time to Cool Water to Freezing, h
624 Noise Control
Fire Safety
Fig. 5 Insertion Loss Versus Mass of Jacket
625 Table 7 Insertion Loss for Pipe Insulation Materials, dB
626 Corrosion Under Insulation
627 Materials and Systems
Categories of Insulation Materials
Physical Properties of Insulation Materials
628 Table 8 Performance Property Guide for Insulation Materials
Table 9 Thermal Conductivities of Cylindrical Pipe Insulation at 12.8 and 24°C
Weather Protection
629 Vapor Retarders
631 Installation
Pipe Insulation
Fig. 6 Insulating Pipe Hangers
632 Table 10 Minimum Saddle Lengths for Use with Fibrous Glass Pipe Insulation*
Table 11 Minimum Saddle Lengths for Use with 32 kg/m3 Polyisocyanurate Foam Insulation (13 to 75 mm thick)
633 Tanks, Vessels, and Equipment
634 Ducts
635 Fig. 7 R-Value Required to Prevent Condensation on Surface with Emittance e = 0.1
Fig. 8 R-Value Required to Prevent Condensation on Surface with Emittance e = 0.9
636 Design Data
Estimating Heat Loss and Gain
Controlling Surface Temperatures
637 Table 12 Emittance Data of Commonly Used Materials
Project Specifications
Standards
638 Table 13 Inner and Outer Diameters of Standard Pipe Insulation
Table 14 Inner and Outer Diameters of Standard Tubing Insulation
639 Table 15 Inner and Outer Diameters of Standard Flexible Closed-Cell Pipe Insulation
Table 16 Inner and Outer Diameters of Standard Flexible Closed-Cell Tubing Insulation
Table 17 Heat Loss from Bare Steel Pipe to Still Air at 27°C, W/m
Table 18 Heat Loss from Bare Copper Tube to Still Air at 27°C, W/m
640 References
641 SI_F13_Ch24
Flow Patterns
Fig. 1 Flow Patterns Around Rectangular Building
642 Fig. 2 Surface Flow Patterns for Normal and Oblique Winds
Fig. 3 Flow Recirculation Regions and Exhaust-to-Intake Stretched-String Distances (SA , SB)
643 Wind Pressure on Buildings
Table 1 Atmospheric Boundary Layer Parameters
Local Wind Pressure Coefficients
644 Fig. 4 Local Pressure Coefficients (Cp ´ 100) for Tall Building with Varying Wind Direction
Surface-Averaged Wall Pressures
Roof Pressures
645 Fig. 5 Local Pressure Coefficients for Walls of Low-Rise Building with Varying Wind Direction
Fig. 6 Variation of Surface-Averaged Wall Pressure Coefficients for Low-Rise Buildings
Interference and Shielding Effects on Pressures
Fig. 7 Surface-Averaged Wall Pressure Coefficients for Tall Buildings
Fig. 8 Local Roof Pressure Coefficients for Roof of Low-Rise Buildings
Fig. 9 Surface-Averaged Roof Pressure Coefficients for Tall Buildings
646 Sources of Wind Data
Table 2 Typical Relationship of Hourly Wind Speed Umet to Annual Average Wind Speed Uannual
Fig. 10 Frequency Distribution of Wind Speed and Direction
Estimating Wind at Sites Remote from Recording Stations
647 Wind Effects on System Operation
Fig. 11 Sensitivity of System Volume to Locations of Building Openings, Intakes, and Exhausts
Natural and Mechanical Ventilation
648 Fig. 12 Intake and Exhaust Pressures on Exhaust Fan in Single-Zone Building
Fig. 13 Effect of Wind-Assisted and Wind-Opposed Flow
649 Minimizing Wind Effect on System Volume
Chemical Hood Operation
Building Pressure Balance and Internal Flow Control
Pressure Balance
Internal Flow Control
Physical and Computational Modeling
650 Computational Modeling
Physical Modeling
651 Similarity Requirements
Wind Simulation Facilities
652 Designing Model Test Programs
Symbols
References
655 Bibliography
657 SI_F13_Ch25
Terminology and Symbols
Heat
658 Air
Moisture
Environmental Hygrothermal Loads and Driving Forces
Fig. 1 Hygrothermal Loads and Alternating Diurnal or Seasonal Directions Acting on Building Envelope
659 Ambient Temperature and Humidity
Indoor Temperature and Humidity
Solar Radiation
Fig. 2 Solar Vapor Drive and Interstitial Condensation
Exterior Condensation
660 Wind-Driven Rain
Fig. 3 Typical Wind-Driven Rain Rose for Open Ground
Fig. 4 Measured Reduction in Catch Ratio Close to Façade of One-Story Building at Height of 2 m
Construction Moisture
Ground- and Surface Water
661 Air Pressure Differentials
Heat Transfer
Steady-State Thermal Response
662 Surface-to-Surface Thermal Resistance of a Flat Assembly
Combined Convective and Radiative Surface Heat Transfer
Heat Flow Across an Air Space
663 Fig. 5 Heat Flux by Thermal Radiation and Combined Convection and Conduction Across Vertical or Horizontal Air Layer
Total Thermal Resistance of a Flat Building Assembly
Thermal Transmittance of a Flat Building Assembly
Interface Temperatures in a Flat Building Component
Series and Parallel Heat Flow Paths
664 Thermal Bridging and Thermal Performance of Multidimensional Construction
Linear and Point Transmittances
Transient Thermal Response
665 Phase-Change Materials (PCMs)
Fig. 6 Example of Enthalpy Curves for Microencapsulated Phase-Change Materials (PCMs)
Airflow
666 Fig. 7 Examples of Airflow Patterns
Heat Flux with Airflow
Moisture Transfer
Moisture Storage in Building Materials
667 Fig. 8 Sorption Isotherms for Porous Building Materials
Fig. 9 Sorption Isotherm and Suction Curve for Autoclaved Aerated Concrete (AAC)
668 Moisture Flow Mechanisms
Water Vapor Flow by Diffusion
Water Vapor Flow by Air Movement
Water Flow by Capillary Suction
669 Fig. 10 Capillary Rise in Hydrophilic Materials
Fig. 11 Moisture Dependent Diffusivity of Calcium Silicate Brick (CSB) Determined from NMR Scans During Water Absorption Tests
Liquid Flow at Low Moisture Content
670 Fig. 12 Moisture Fluxes by Vapor Diffusion and Liquid Flow in Single Capillary of Exterior Wall under Winter Conditions
Transient Moisture Flow
Combined Heat, Air , and Moisture Transfer
671 Simplified Hygrothermal Design Calculations and Analyses
Surface Humidity and Condensation
Interstitial Condensation and Drying
Dew-Point Method
672 Transient Computational Analysis
Criteria to Evaluate Hygrothermal Simulation Results
Thermal Comfort
Perceived Air Quality
673 Human Health
Durability of Finishes and Structure
Energy Efficiency
References
677 SI_F13_Ch26
Insulation Materials and Insulating Systems
Apparent Thermal Conductivity
Influencing Conditions
678 Fig. 1 Apparent Thermal Conductivity Versus Density of Several Thermal Insulations Used as Building Insulations
Fig. 2 Variation of Apparent Thermal Conductivity with Fiber Diameter and Density
679 Materials and Systems
680 Fig. 3 Working Principle of Capillary-Active Interior Insulation
681 Air Barriers
682 Water Vapor Retarders
683 Data Tables
Thermal Property Data
Table 1 Building and Insulating Materials: Design Valuesa
688 Surface Emissivity and Emittance Data
Table 2 Emissivity of Various Surfaces and Effective Emittances of Facing Air Spacesa
Thermal Resistance of Plane Air Spaces
Air Permeance Data
689 Table 3 Thermal Resistances of Plane Air Spaces,a,b,c (m2 · K)/W
691 Table 4 Air Permeability of Different Materials
Moisture Storage Data
Fig. 4 Permeability of Wood-Based Sheathing Materials at Various Relative Humidities
Fig. 5 Sorption/Desorption Isotherms, Cement Board
692 Table 5 Typical Water Vapor Permeance and Permeability for Common Building Materialsa
693 Table 6 Water Vapor Permeability at Various Relative Humidities and Capillary Water Absorption Coefficient
694 Soils Data
Fig. 6 Trends of Apparent Thermal Conductivity of Moist Soils
695 Table 7 Sorption/Desorption Isotherms of Building Materials at Various Relative Humidities
696 Table 8 Typical Apparent Thermal Conductivity Values for Soils, W/(m · K)
Table 9 Typical Apparent Thermal Conductivity Values for Rocks, W/(m ·K)
Surface Film Coefficients/ Resistances
Table 10 Surface Film Coefficients/Resistances
Table 11 European Surface Film Coefficients/Resistances
Codes and Standards
697 References
698 Bibliography
699 SI_F13_Ch27
Heat Transfer
One-Dimensional Assembly U-Factor Calculation
Wall Assembly U-Factor
700 Fig. 1 Structural Insulated Panel Assembly (Example 1)
Fig. 2 Roof Assembly (Example 2)
Roof Assembly U-Factor
Attics
Basement Walls and Floors
701 Two-Dimensional Assembly U-Factor Calculation
Wood-Frame Walls
Fig. 3 (A) Wall Assembly for Example 3, with Equivalent Electrical Circuits: (B) Parallel Path and (C) Isothermal Planes
702 Masonry Walls
Fig. 4 Insulated Concrete Block Wall (Example 4)
Constructions Containing Metal
703 Fig. 5 Wall Section and Equivalent Electrical Circuit (Example 5)
Zone Method of Calculation
Modified Zone Method for Metal Stud Walls with Insulated Cavities
Fig. 6 Modified Zone Factor for Calculating R-Value of Metal Stud Walls with Cavity Insulation
704 Complex Assemblies
705 Fig. 7 Corner Composed of Homogeneous Material Showing Locations of Isotherms
Fig. 8 Insulating Material Installed on Conductive Material, Showing Temperature Anomaly (Point A) at Insulation Edge
Fig. 9 Brick Veneer Shelf for Example 6
Windows and Doors
Moisture Transport
Wall with Insulated Sheathing
706 Vapor Pressure Profile (Glaser or Dew-Point) Analysis
Winter Wall Wetting Examples
707 Fig. 10 Dew-Point Calculation in Wood-Framed Wall (Example 8)
708 Transient Hygrothermal Modeling
709 Fig. 11 Drying Wet Sheathing, Winter (Example 9)
Fig. 12 Drying Wet Sheathing, Summer (Example 9)
Air Movement
710 Equivalent Permeance
References
Bibliography
711 SI_F13_Ch28
Principles of Combustion
Combustion Reactions
Flammability Limits
712 Table 1 Combustion Reactions of Common Fuel Constituents
Table 2 Flammability Limits and Ignition Temperatures of Common Fuels in Fuel/Air Mixtures
Ignition Temperature
Combustion Modes
713 Heating Value
Table 3 Heating Values of Substances Occurring in Common Fuels
Altitude Compensation
714 Fig. 1 Altitude Effects on Gas Combustion Appliances
715 Fuel Classification
Gaseous Fuels
Types and Properties
716 Table 4 Propane/Air and Butane/Air Gas Mixtures
Liquid Fuels
Types of Fuel Oils
Characteristics of Fuel Oils
717 Fig. 2 Approximate Viscosity of Fuel Oils
Table 5 Sulfur Content of Marketed Fuel Oils
Table 6 Typical Density and Higher Heating Value of Standard Grades of Fuel Oil
Types and Properties of Liquid Fuels for Engines
718 Solid Fuels
Types of Coals
Table 7 Classification of Coals by Ranka
719 Characteristics of Coal
Table 8 Typical Ultimate Analyses for Coals
Combustion Calculations
720 Air Required for Combustion
721 Table 9 Approximate Air Requirements for Stoichiometric Combustion of Fuels
Table 10 Approximate Air Requirements for Stoichiometric Combustion of Various Fuels
Table 11 Approximate Maximum Theoretical (Stoichiometric) CO2 Values, and CO2 Values of Various Fuels with Different Percentages of Excess Air
Theoretical CO2
Quantity of Flue Gas Produced
722 Water Vapor and Dew Point of Flue Gas
Fig. 3 Water Vapor and Dew Point of Flue Gas
Sample Combustion Calculations
723 Fig. 4 Theoretical Dew Points of Combustion Products of Industrial Fuels
Efficiency Calculations
Fig. 5 Influence of Sulfur Oxides on Flue Gas Dew Point
724 Seasonal Efficiency
Combustion Considerations
Air Pollution
725 Fig. 6 Flue Gas Losses with Various Fuels
726 Table 12 NOx Emission Factors for Combustion Sources Without Emission Controls
Condensation and Corrosion
727 Abnormal Combustion Noise in Gas Appliances
Soot
References
728 Bibliography
729 SI_F13_Ch29
Refrigerant Properties
Global Environmental Properties
730 Table 1 Refrigerant Data and Safety Classifications
731 Table 2 Data and Safety Classifications for Refrigerant Blends
733 Table 3 Refrigerant Environmental Properties
Physical Properties
Table 4 Environmental Properties of Refrigerant Blends
734 Electrical Properties
Table 5 Physical Properties of Selected Refrigerantsa
735 Table 6 Electrical Properties of Liquid Refrigerants
Table 7 Electrical Properties of Refrigerant Vapors
736 Sound Velocity
Refrigerant Performance
Table 8 Comparative Refrigerant Performance per Kilowatt of Refrigeration
737 Safety
Leak Detection
Electronic Detection
Bubble Method
Pressure Change Methods
UV Dye Method
Ammonia Leaks
Compatibility with Construction Materials
Metals
738 Elastomers
Table 9 Swelling of Elastomers in Liquid Refrigerants at Room Temperature, % Linear Swell
Plastics
739 Additional Compatibility Reports
References
740 Bibliography
741 SI_F13_Ch30
742 Fig. 1 Pressure-Enthalpy Diagram for Refrigerant 12
743 Refrigerant 12 (Dichlorodifluoromethane) Properties of Saturated Liquid and Saturated Vapor
744 Fig. 2 Pressure-Enthalpy Diagram for Refrigerant 22
745 Refrigerant 22 (Chlorodifluoromethane) Properties of Saturated Liquid and Saturated Vapor
746 Fig. 3 Pressure-Enthalpy Diagram for Refrigerant 23
747 Refrigerant 23 (Trifluoromethane) Properties of Saturated Liquid and Saturated Vapor
748 Fig. 4 Pressure-Enthalpy Diagram for Refrigerant 32
750 Fig. 5 Pressure-Enthalpy Diagram for Refrigerant 123
751 Refrigerant 123 (2,2-Dichloro-1,1,1-Trifluoroethane) Properties of Saturated Liquid and Saturated Vapor
752 Fig. 6 Pressure-Enthalpy Diagram for Refrigerant 124
753 Refrigerant 124 (2-Chloro-1,1,1,2-Tetrafluoroethane) Properties of Saturated Liquid and Saturated Vapor
754 Fig. 7 Pressure-Enthalpy Diagram for Refrigerant 125
756 Fig. 8 Pressure-Enthalpy Diagram for Refrigerant 134a
757 Refrigerant 134a (1,1,1,2-Tetrafluoroethane) Properties of Saturated Liquid and Saturated Vapor
760 Fig. 9 Pressure-Enthalpy Diagram for Refrigerant 143a
762 Fig. 10 Pressure-Enthalpy Diagram for Refrigerant 152a
763 Refrigerant 152a (1,1-Difluoroethane) Properties of Saturated Liquid and Saturated Vapor
764 Fig. 11 Pressure-Enthalpy Diagram for Refrigerant 245fa
766 Fig. 12 Pressure-Enthalpy Diagram for Refrigerant 1234yf
768 Fig. 13 Pressure-Enthalpy Diagram for Refrigerant 1234ze(E)
770 Fig. 14 Pressure-Enthalpy Diagram for Refrigerant 404A
772 Fig. 15 Pressure-Enthalpy Diagram for Refrigerant 407C
773 Refrigerant 407C [R-32/125/134a (23/25/52)] Properties of Liquid on Bubble Line and Vapor on Dew Line
774 Fig. 16 Pressure-Enthalpy Diagram for Refrigerant 410A
775 Refrigerant 410A [R-32/125 (50/50)] Properties of Liquid on Bubble Line and Vapor on Dew Line
776 Fig. 17 Pressure-Enthalpy Diagram for Refrigerant 507A
778 Fig. 18 Pressure-Enthalpy Diagram for Refrigerant 717 (Ammonia)
779 Refrigerant 717 (Ammonia) Properties of Saturated Liquid and Saturated Vapor
780 Fig. 19 Pressure-Enthalpy Diagram for Refrigerant 718 (Water/Steam)
781 Refrigerant 718 (Water/Steam) Properties of Saturated Liquid and Saturated Vapor
782 Fig. 20 Pressure-Enthalpy Diagram for Refrigerant 744 (Carbon Dioxide)
783 Refrigerant 744 (Carbon Dioxide) Properties of Saturated Liquid and Saturated Vapor
784 Fig. 21 Pressure-Enthalpy Diagram for Refrigerant 50 (Methane)
785 Refrigerant 50 (Methane) Properties of Saturated Liquid and Saturated Vapor
Refrigerant 50 (Methane) Properties of Gas at 0.101 325 MPa (one standard atmosphere)
786 Fig. 22 Pressure-Enthalpy Diagram for Refrigerant 170 (Ethane)
788 Fig. 23 Pressure-Enthalpy Diagram for Refrigerant 290 (Propane)
790 Fig. 24 Pressure-Enthalpy Diagram for Refrigerant 600 (n-Butane)
792 Fig. 25 Pressure-Enthalpy Diagram for Refrigerant 600a (Isobutane)
794 Fig. 26 Pressure-Enthalpy Diagram for Refrigerant 1150 (Ethylene)
795 Refrigerant 1150 (Ethylene) Properties of Saturated Liquid and Saturated Vapor
796 Fig. 27 Pressure-Enthalpy Diagram for Refrigerant 1270 (Propylene)
797 Refrigerant 1270 (Propylene) Properties of Saturated Liquid and Saturated Vapor
798 Fig. 28 Pressure-Enthalpy Diagram for Refrigerant 704 (Helium)
799 Refrigerant 704 (Helium) Properties of Saturated Liquid and Saturated Vapor
Refrigerant 704 (Helium) Properties of Gas at 0.101 325 MPa (one standard atmosphere)
800 Fig. 29 Pressure-Enthalpy Diagram for Refrigerant 728 (Nitrogen)
801 Refrigerant 728 (Nitrogen) Properties of Saturated Liquid and Saturated Vapor
Refrigerant 728 (Nitrogen) Properties of Gas at 0.101 325 MPa (one standard atmosphere)
802 Fig. 30 Pressure-Enthalpy Diagram for Refrigerant 729 (Air)
803 Refrigerant 729 (Air) Properties of Liquid on the Bubble Line and Vapor on the Dew Line
Refrigerant 729 (Air) Properties of Gas at 0.101 325 MPa (one standard atmosphere)
804 Fig. 31 Pressure-Enthalpy Diagram for Refrigerant 732 (Oxygen)
805 Refrigerant 732 (Oxygen) Properties of Saturated Liquid and Saturated Vapor
Refrigerant 732 (Oxygen) Properties of Gas at 0.101 325 MPa (one standard atmosphere)
806 Fig. 32 Pressure-Enthalpy Diagram for Refrigerant 740 (Argon)
808 Fig. 33 Enthalpy-Concentration Diagram for Ammonia/Water Solutions Prepared by Kwang Kim and Keith Herold, Center for Environmental Energy Engineering, University of Maryland at College Park
809 Specific Volume of Saturated Ammonia-Water Solutions, m3/kg
Refrigerant Temperature (t¢ = °C) and Enthalpy (h = kJ/kg) of Lithium Bromide Solutions
810 Fig. 34 Enthalpy-Concentration Diagram for Water/Lithium Bromide Solutions
811 Fig. 35 Equilibrium Chart for Aqueous Lithium Bromide Solutions
812 References
Fig. 36 Specific Density of Aqueous Solutions of Lithium Bromide
Fig. 37 Specific Heat of Aqueous Lithium Bromide Solutions
Fig. 38 Viscosity of Aqueous Solutions of Lithium Bromide
817 SI_F13_Ch31
Brines
Physical Properties
Table 1 Properties of Pure Calcium Chloride* Brines
818 Fig. 1 Specific Heat of Calcium Chloride Brines
Fig. 2 Density of Calcium Chloride Brines
Fig. 3 Viscosity of Calcium Chloride Brines
Fig. 4 Thermal Conductivity of Calcium Chloride Brines
819 Table 2 Properties of Pure Sodium Chloridea Brines
Fig. 5 Specific Heat of Sodium Chloride Brines
Fig. 6 Density of Sodium Chloride Brines
820 Fig. 7 Viscosity of Sodium Chloride Brines
Fig. 8 Thermal Conductivity of Sodium Chloride Brines
Corrosion Inhibition
Inhibited Glycols
Physical Properties
Table 3 Physical Properties of Ethylene Glycol and Propylene Glycol
821 Fig. 9 Density of Aqueous Solutions of Industrially Inhibited Ethylene Glycol (vol. %)
Fig. 10 Specific Heat of Aqueous Solutions of Industrially Inhibited Ethylene Glycol (vol. %)
Fig. 11 Thermal Conductivity of Aqueous Solutions of Industrially Inhibited Ethylene Glycol (vol. %)
Fig. 12 Viscosity of Aqueous Solutions of Industrially Inhibited Ethylene Glycol (vol. %)
Fig. 13 Density of Aqueous Solutions of Industrially Inhibited Propylene Glycol (vol. %)
822 Table 4 Freezing and Boiling Points of Aqueous Solutions of Ethylene Glycol
Table 5 Freezing and Boiling Points of Aqueous Solutions of Propylene Glycol
823 Table 6 Density of Aqueous Solutions of Ethylene Glycol
Table 7 Specific Heat of Aqueous Solutions of Ethylene Glycol
824 Table 8 Thermal Conductivity of Aqueous Solutions of Ethylene Glycol
Table 9 Viscosity of Aqueous Solutions of Ethylene Glycol
825 Table 10 Density of Aqueous Solutions of an Industrially Inhibited Propylene Glycol
Table 11 Specific Heat of Aqueous Solutions of Propylene Glycol
826 Table 12 Thermal Conductivity of Aqueous Solutions of Propylene Glycol
Table 13 Viscosity of Aqueous Solutions of Propylene Glycol
827 Fig. 14 Specific Heat of Aqueous Solutions of Industrially Inhibited Propylene Glycol (vol. %)
Fig. 15 Thermal Conductivity of Aqueous Solutions of Industrially Inhibited Propylene Glycol (vol. %)
Fig. 16 Viscosity of Aqueous Solutions of Industrially Inhibited Propylene Glycol (vol. %)
Corrosion Inhibition
Service Considerations
828 Halocarbons
Table 14 Properties of a Polydimethylsiloxane Heat Transfer Fluid
829 Table 15 Summary of Physical Properties of Polydimethylsiloxane Mixture and d-Limonene
Table 16 Physical Properties of d-Limonene
Nonhalocarbon, Nonaqueous Fluids
References
Bibliography
831 SI_F13_Ch32
Desiccant Applications
Desiccant Cycle
832 Fig. 1 Desiccant Water Vapor Pressure as Function of Moisture Content
Fig. 2 Desiccant Water Vapor Pressure as Function of Desiccant Moisture Content and Temperature
Fig. 3 Desiccant Cycle
Table 1 Vapor Pressures and Dew-Point Temperatures Corresponding to Different Relative Humidities at 21°C
833 Types of Desiccants
Liquid Absorbents
Fig. 4 Surface Vapor Pressure of Water/Triethylene Glycol Solutions
Fig. 5 Surface Vapor Pressure of Water/Lithium Chloride Solutions
834 Solid Adsorbents
Fig. 6 Adsorption and Structural Characteristics of Some Experimental Silica Gels
835 Desiccant Isotherms
Fig. 7 Sorption Isotherms of Various Desiccants
Desiccant Life
Cosorption of Water Vapor and Indoor Air Contaminants
836 References
Bibliography
837 SI_F13_Ch33
Table 1 Properties of Vapor
838 Table 2 Properties of Liquids
839 Table 3 Properties of Solids
840 References
841 SI_F13_Ch34
Characteristics of Energy and Energy Resource Forms
Forms of On-Site Energy
Nonrenewable and Renewable Energy Resources
Characteristics of Fossil Fuels and Electricity
842 On-Site Energy/Energy Resource Relationships
Quantifiable Relationships
Intangible Relationships
843 Summary
Energy Resource Planning
Integrated Resource Planning (IRP)
Tradable Emission Credits
844 Overview of Global Energy Resources
World Energy Resources
Production
Fig. 1 Energy Production Trends: 2001-2010
Fig. 2 World Primary Energy Production by Resource: 2001 Versus 2010
Fig. 3 World Crude Oil Reserves: 2011
Fig. 4 World Natural Gas Reserves: 2011
Reserves
845 Fig. 5 World Recoverable Coal Reserves: 2010
Consumption
Fig. 6 World Petroleum Consumption: 2010
Fig. 7 World Natural Gas Consumption: 2010
Fig. 8 World Coal Consumption: 2010
Fig. 9 Coal Consumption in United States, China, and India, 1980-2010
846 Fig. 10 World Electricity Generation by Resource: 1999 and 2009
Fig. 11 World Electric Generation 2009
Fig. 12 Per Capita Energy Consumption by Selected Countries: 2009
Fig. 13 World Carbon Emissions
Carbon Emissions
847 U.S. Energy Use
Per Capita Energy Consumption
Fig. 14 Per Capita United States Energy Consumption
Projected Overall Energy Consumption
Fig. 15 Projected Total U.S. Energy Consumption by End-Use Sector
Fig. 16 Projected Total U.S. Energy Consumption by Resource
848 Outlook Summary
U.S. Agencies and Associations
References
Bibliography
849 SI_F13_Ch35
Definition
Characteristics of Sustainability
Sustainability Addresses the Future
Sustainability Has Many Contributors
Sustainability Is Comprehensive
850 Technology Plays Only a Partial Role
Factors Impacting Sustainability
Primary HVAC&R Considerations in Sustainable Design
Energy Resource Availability
851 Fresh Water Supply
Effective and Efficient Use of Energy Resources and Water
Material Resource Availability and Management
Air, Noise, and Water Pollution
Fig. 1 Cooling Tower Noise Barrier
Solid and Liquid Waste Disposal
852 Factors Driving Sustainability into Design Practice
Climate Change
Regulatory Environment
Fig. 2 Effect of Montreal Protocol on Global Chlorofluorocarbon (CFC) Production
Evolving Standards of Care
Changing Design Process
853 Fig. 3 Electricity Generation by Fuel, 1980–2030
Other Opportunities
Designing for Effective Energy Resource Use
Energy Ethic: Resource Conservation Design Principles
Energy and Power
854 Simplicity
Self-Imposed Budgets
Design Process for Energy-Efficient Projects
Table 1 Example Benchmark and Energy Targets for University Research Laboratory
855 Building Energy Use Elements
857 References
Bibliography
859 SI_F13_Ch36
Terminology
860 Fig. 1 Measurement and Instrument Terminology
861 Uncertainty Analysis
Uncertainty Sources
Uncertainty of a Measured Variable
Fig. 2 Errors in Measurement of Variable X
862 Temperature Measurement
Sampling and Averaging
Table 1 Common Temperature Measurement Techniques
863 Static Temperature Versus Total Temperature
Liquid-in-Glass Thermometers
Sources of Thermometer Errors
Resistance Thermometers
864 Fig. 3 Typical Resistance Thermometer Circuit
Resistance Temperature Devices
Fig. 4 Typical Resistance Temperature Device (RTD) Bridge Circuits
865 Thermistors
Fig. 5 Basic Thermistor Circuit
Semiconductor Devices
Thermocouples
866 Table 2 Thermocouple Tolerances on Initial Values of Electromotive Force Versus Temperature
Wire Diameter and Composition
Multiple Thermocouples
867 Surface Temperature Measurement
Thermocouple Construction
Optical Pyrometry
Infrared Radiation Thermometers
Infrared Thermography
868 Humidity Measurement
Psychrometers
Table 3 Humidity Sensor Properties
869 Dew-Point Hygrometers
Condensation Dew-Point Hygrometers
Salt-Phase Heated Hygrometers
Mechanical Hygrometers
Electrical Impedance and Capacitance Hygrometers
870 Dunmore Hygrometers
Polymer Film Electronic Hygrometers
Ion Exchange Resin Electric Hygrometers
Impedance-Based Porous Ceramic Electronic Hygrometers
Aluminum Oxide Capacitive Sensor
Electrolytic Hygrometers
Piezoelectric Sorption
Spectroscopic (Radiation Absorption) Hygrometers
Gravimetric Hygrometers
871 Calibration
Pressure Measurement
Units
Instruments
Pressure Standards
Mechanical Pressure Gages
872 Electromechanical Transducers
General Considerations
873 Air Velocity Measurement
Airborne Tracer Techniques
Anemometers
Deflecting Vane Anemometers
Propeller or Revolving (Rotating) Vane Anemometers
Cup Anemometers
Thermal Anemometers
874 Table 4 Air Velocity Measurement
875 Laser Doppler Velocimeters (or Anemometers)
Particle Image Velocimetry (PIV)
Pitot-Static Tubes
Fig. 6 Standard Pitot Tube
876 Fig. 7 Measuring Points for Rectangular and Round Duct Traverse
Measuring Flow in Ducts
877 Fig. 8 Pitot-Static Probe Pressure Coefficient Yaw Angular Dependence
878 Airflow-Measuring Hoods
Flow Rate Measurement
Flow Measurement Methods
879 Table 5 Volumetric or Mass Flow Rate Measurement
Venturi, Nozzle, and Orifice Flowmeters
880 Fig. 9 Typical Herschel-Type Venturi Meter
Fig. 10 Dimensions of ASME Long-Radius Flow Nozzles
Variable-Area Flowmeters (Rotameters)
881 Fig. 11 Sharp-Edge Orifice with Pressure Tap Locations
Fig. 12 Variable-Area Flowmeter
Positive-Displacement Meters
Turbine Flowmeters
882 Air Infiltration, Airtightness, and Outdoor Air Ventilation Rate Measurement
Carbon Dioxide
Carbon Dioxide Measurement
Nondispersive Infrared CO2 Detectors
883 Fig. 13 Nondispersive Infrared Carbon Dioxide Sensor
Calibration
Applications
Amperometric Electrochemical CO2 Detectors
Fig. 14 Amperometric Carbon Dioxide Sensor
Fig. 15 Open-Cell Photoacoustic Carbon Dioxide Sensor
Photoacoustic CO2 Detectors
Open-Cell Sensors
Closed-Cell Sensors
884 Fig. 16 Closed-Cell Photoacoustic Carbon Dioxide Sensor
Potentiometric Electrochemical CO2 Detectors
Colorimetric Detector Tubes
Laboratory Measurements
Electric Measurement
Ammeters
Voltmeters
Wattmeters
885 Power-Factor Meters
Rotative Speed Measurement
Tachometers
Stroboscopes
AC Tachometer-Generators
Sound and Vibration Measurement
Sound Measurement
Microphones
Sound Measurement Systems
886 Fig. 17 Ammeter Connected in Power Circuit
Fig. 18 Ammeter with Current Transformer
Fig. 19 Voltmeter Connected Across Load
Fig. 20 Voltmeter with Potential Transformer
Fig. 21 Wattmeter in Single-Phase Circuit Measuring Power Load plus Loss in Current-Coil Circuit
Fig. 22 Wattmeter in Single-Phase Circuit Measuring Power Load plus Loss in Potential-Coil Circuit
Fig. 23 Wattmeter with Current and Potential Transformer
Fig. 24 Polyphase Wattmeter in Two- Phase, Three-Wire Circuit with Balanced or Unbalanced Voltage or Load
Fig. 25 Polyphase Wattmeter in Three-Phase, Three-Wire Circuit
Fig. 26 Single-Phase Power-Factor Meter
Fig. 27 Three-Wire, Three-Phase Power-Factor Meter
887 Frequency Analysis
Sound Chambers
Calibration
Vibration Measurement
Transducers
888 Vibration Measurement Systems
Calibration
Lighting Measurement
Thermal Comfort Measurement
Clothing and Activity Level
889 Air Temperature
Air Velocity
Plane Radiant Temperature
Mean Radiant Temperature
Air Humidity
Calculating Thermal Comfort
Fig. 28 Madsen’s Comfort Meter
Integrating Instruments
890 Moisture Content and Transfer Measurement
Sorption Isotherm
Vapor Permeability
Liquid Diffusivity
Heat Transfer Through Building Materials
Thermal Conductivity
891 Thermal Conductance and Resistance
Air Contaminant Measurement
Combustion Analysis
Flue Gas Analysis
892 Data Acquisition and Recording
Digital Recording
893 Data-Logging Devices
Symbols
Standards
894 References
896 Bibliography
897 SI_F13_Ch37
Abbreviations for Text, Drawings, and Computer Programs
Computer Programs
Letter Symbols
898 Table 1 Abbreviations for Text, Drawings, and Computer Programs
906 Piping System Identification
Definitions
Table 2 Examples of Legends
Fig. 1 Visibility of Pipe Markings
Table 3 Classification of Hazardous Materials and Designation of Colorsa
Method of Identification
907 Table 4 Size of Legend Letters
Codes and Standards
909 SI_F13_Ch38
Table 1 Conversions to I-P and SI Units
910 Table 2 Conversion Factors
911 SI_F13_Ch39
Selected Codes and Standards Published by Various Societies and Associations
936 ORGANIZATIONS
939 SI_F2013IndexIX
Abbreviations, F37
Absorbents
Absorption
Acoustics. See Sound
Activated carbon adsorption, A46.6
Adaptation, environmental, F9.16
ADPI. See Air diffusion performance index (ADPI)
Adsorbents
Adsorption
Aeration, of farm crops, A25
Aerosols, S29.1
Affinity laws for centrifugal pumps, S44.7
AFUE. See Annual fuel utilization efficiency (AFUE)
AHU. See Air handlers
Air
Air barriers, F26.5
Airborne infectious diseases, F10.7
Air cleaners. (See also Filters, air; Industrial exhaust gas cleaning)
Air conditioners. (See also Central air conditioning)
940 Air conditioning. (See also Central air conditioning)
Air contaminants, F11. (See also Contaminants)
Aircraft, A12
Air curtains, display cases, R15.5
Air diffusers, S20
Air diffusion, F20
Air diffusion performance index (ADPI), A57.5
Air distribution, A57; F20; S4; S20
Air exchange rate
Air filters. See Filters, air
Airflow
941 Airflow retarders, F25.9, 10
Air flux, F25.2. (See also Airflow)
Air handlers
Air inlets
Air intakes
Air jets. See Air diffusion
Air leakage. (See also Infiltration)
Air outlets
Airports, air conditioning, A3.6
Air quality. [See also Indoor air quality (IAQ)]
Airtightness, F36.24
Air-to-air energy recovery, S26
Air-to-transmission ratio, S5.13
Air transport, R27
Air washers
Algae, control, A49.5
All-air systems
Ammonia
Anchor bolts, seismic restraint, A55.7
Anemometers
Animal environments
Annual fuel utilization efficiency (AFUE), S33.9; S34.2
Antifreeze
Antisweat heaters (ASH), R15.5
Apartment buildings
Aquifers, thermal storage, S51.6
Archimedes number, F20.6
Archives. See Museums, galleries, archives, and libraries
Arenas
Argon, recovery, R47.17
Asbestos, F10.5
ASH. See Antisweat heaters (ASH)
Atriums
Attics, unconditioned, F27.2
Auditoriums, A5.3
Automobiles
942 Autopsy rooms, A9.5, 6
Avogadro’s law, and fuel combustion, F28.10
Backflow-prevention devices, S47.13
BACnet®, A40.17; F7.18
Bacteria
Bakery products, R41
Balance point, heat pumps, S49.9
Balancing. (See also Testing, adjusting, and balancing)
BAS. See Building automation systems (BAS)
Baseboard units
Basements
Beer’s law, F1.16
Bernoulli equation, F21.1
Best efficiency point (BEP), S44.7
Beverages, R39
BIM. See Building information modeling (BIM)
Bioaerosols
Biocides, control, A49.5
Biodiesel, F28.6
Biological safety cabinets, A16.6
Biomanufacturing cleanrooms, A18.7
Bioterrorism. See Chemical, biological, radio- logical, and explosive (CBRE) incidents
Boilers, S32
Boiling
Brayton cycle
Bread, R41
Breweries
Brines. See Coolants, secondary
Building automation systems (BAS), A40.17; F7.14
Building energy monitoring, A41. (See also Energy, monitoring)
Building envelopes
943 Building information modeling (BIM), A40.15
Building materials, properties, F26
Building thermal mass
Burners
Buses
Bus terminals
Butane, commercial, F28.5
CAD. See Computer-aided design (CAD)
Cafeterias, service water heating, A50.14, 21
Calcium chloride brines, F31.1
Candy
Capillary action, and moisture flow, F25.10
Capillary tubes
Carbon dioxide
Carbon emissions, F34.6
Carbon monoxide
Cargo containers, R25
Carnot refrigeration cycle, F2.6
Cattle, beef, and dairy, A24.7. (See also Animal environments)
CAV. See Constant air volume (CAV)
Cavitation, F3.13
CBRE. See Chemical, biological, radiological, and explosive (CBRE) incidents
Ceiling effect. See Coanda effect
Ceilings
Central air conditioning, A42. (See also Air conditioning)
Central plants
Central systems
Cetane number, engine fuels, F28.8
CFD. See Computational fluid dynamics (CFD)
Charging, refrigeration systems, R8.4
Chemical, biological, radiological, and explosive (CBRE) incidents, A59
Chemical plants
944 Chemisorption, A46.7
Chilled beams, S20.9
Chilled water (CW)
Chillers
Chilton-Colburn j-factor analogy, F1.7
Chimneys, S35
Chlorinated polyvinyl chloride (CPVC), A34.6
Chocolate, R42.1 (See also Candy)
Choking, F3.13
CHP systems. See Combined heat and power (CHP)
Cinemas, A5.3
Claude cycle, R47.8
Cleanrooms. See Clean spaces
Clean spaces, A18
Clear-sky solar radiation, calculation, F14.7
Climate change, effect on climatic design conditions, F14.14
Climatic design information, F14
Clothing
CLTD/CLF. See Cooling load temperature differential method with solar cooling load factors (CLTD/CLF)
Coal
Coanda effect, A33.6; F20.2, 6; S20.2
Codes, F39. (See also Standards)
945 Coefficient of performance (COP)
Cogeneration. See Combined heat and power (CHP)
Coils
Colburn’s analogy, F1.17
Colebrook equation
Collectors, solar, A35.6, 11, 23, 25; S37.3
Colleges and universities, A7.11
Combined heat and power (CHP), S7
Combustion, F28
Combustion air systems
Combustion turbine inlet cooling (CTIC), S7.20; S8.1
Comfort. (See also Physiological principles, humans)
Commercial and public buildings, A3.1
946 Commissioning, A43
Compressors, S38
Computational fluid dynamics (CFD), F13.1
Computer-aided design (CAD), A18.5; A40.14
Computers, A40
Concert halls, A5.4
Concrete
Condensate
Condensation
Condensers, S39
947 Conductance, thermal, F1.3; F25.1
Conduction
Conductivity, thermal, F25.1; F26.1
Constant air volume (CAV)
Constant-volume, all-air systems
Construction. (See also Building envelopes)
Containers. (See also Cargo containers)
Contaminants
Continuity, fluid dynamics, F3.2
Control. (See also Controls, automatic; Supervisory control)
Controlled-atmosphere (CA) storage
948 Controlled-environment rooms (CERs), and plant growth, A24.16
Controls, automatic, F7. (See also Control)
Convection
Convectors
Convention centers, A5.5
Conversion factors, F38
Coolants, secondary
Coolers. (See also Refrigerators)
Cooling. (See also Air conditioning)
Cooling load
Cooling load temperature differential method with solar cooling load factors (CLTD/CLF), F18.49
Cooling towers, S40
949 Cool storage, S51.1
COP. See Coefficient of performance (COP)
Corn, drying, A25.1
Correctional facilities. See Justice facilities
Corrosion
Costs. (See also Economics)
Cotton, drying, A25.8
Courthouses, A9.4
Courtrooms, A9.5
CPVC. See Chlorinated polyvinyl chloride (CPVC)
Crawlspaces
Critical spaces
Crops. See Farm crops
Cruise terminals, A3.6
Cryogenics, R47
Curtain walls, F15.5
Cycloparaffins, R12.3
Dairy products, R33
950 Dampers
Dams, concrete cooling, R45.1
Darcy equation, F21.6
Darcy-Weisbach equation
Data-driven modeling
Data processing areas
Daylighting
DDC. See Direct digital control (DDC)
Dedicated outdoor air system (DOAS), S4.13; S18.2, 7; S25.4
Defrosting
Degree-days, F14.12
Dehumidification, A47.12; S24
Dehumidifiers
Dehydration
Density
Dental facilities, A8.15
Desiccants, F32.1; S24.1
Design-day climatic data, F14.12
Desorption isotherm, F26.19
Desuperheaters
Dew-point
Diamagnetism, and superconductivity, R47.5
Diesel fuel, F28.8
Diffusers, air, sound control, A48.12
Diffusion
Diffusivity
Dilution
Dining halls, in justice facilities, A9.4
DIR. See Dispersive infrared (DIR)
Direct digital control (DDC), F7.4, 10
Direct numerical simulation (DNS), turbulence modeling, F13.4; F24.10
Dirty bombs. See Chemical, biological, radio- logical, and explosive (CBRE) incidents
Discharge coefficients, in fluid flow, F3.9
Dispersive infrared (DIR), F7.9
Display cases, R15.1, 4
District energy (DE), S12.1
District heating and cooling (DHC), S12
951 d-limonene, F31.13
DNS. See Direct numerical simulation (DNS)
Doors
Dormitories
Draft
Drag, in fluid flow, F3.5
Driers, R7.6. (See also Dryers)
Drip station, steam systems, S12.11
Dryers. (See also Driers)
Drying
DTW. See Dual-temperature water (DTW) system
Dual-duct systems
Dual-temperature water (DTW) system, S13.1
DuBois equation, F9.3
Duct design
Ducts
Dust mites, F25.17
Dusts, S29.1
Dynamometers, A17.1
Earth, stabilization, R45.3, 4
Earthquakes, seismic-resistant design, A55.1
Economic analysis, A37
Economic coefficient of performance (ECOP), S7.49
Economics. (See also Costs)
Economizers
ECOP. See Economic coefficient of performance (ECOP)
ECS. See Environmental control system (ECS)
Eddy diffusivity, F1.7
Educational facilities, A7
EER. See Energy efficiency ratio (EER)
Effectiveness, heat transfer, F1.21
Effective radiant flux (ERF), A54.2
Efficiency
952 Eggs, R34
EIFS. See Exterior insulation finishing system (EIFS)
Electricity
Electric thermal storage (ETS), S51.16
Electrostatic precipitators, S29.6; S30.7
Elevators
Emissions, pollution, F28.7
Emissivity, F1.2
Emittance, thermal, F25.2
Enclosed vehicular facilities, A15
Energy
Energy efficiency ratio (EER), S50.1
Energy savings performance contracting (ESPC), A37.8
Energy transfer station, S12.32
Engines, S7
Engine test facilities, A17
Enhanced tubes. See Finned-tube heat transfer coils
Enthalpy
Entropy, F2.1
Environmental control
953 Environmental control system (ECS), A12
Environmental health, F10
Environmental tobacco smoke (ETS)
Equipment vibration, A48.42; F8.17
ERF. See Effective radiant flux (ERF)
ESPC. See Energy savings performance contracting (ESPC)
Ethylene glycol, in hydronic systems, S13.23
ETS. See Environmental tobacco smoke (ETS); Electric thermal storage (ETS)
Evaluation. See Testing
Evaporation, in tubes
Evaporative coolers. (See also Refrigerators)
Evaporative cooling, A52
Evaporators. (See also Coolers, liquid)
Exfiltration, F16.1
Exhaust
Exhibit buildings, temporary, A5.8
Exhibit cases, A23.5, 16
Exhibition centers, A5.5
Expansion joints and devices, S46.10
Expansion tanks, S12.8
Explosions. See Chemical, biological, radio- logical, and explosive (CBRE) incidents
Fairs, A5.8
Family courts, A9.3. (See also Juvenile facilities)
Fan-coil units, S5.6
Fans, S21
Farm crops, drying and storing, A25
Faults, system, reasons for detecting, A39.6
f-Chart method, sizing heating and cooling systems, A35.20
Fenestration. (See also Windows)
954 Fick’s law, F1.1
Filters, air, S29. (See also Air cleaners)
Filters, water, A49.7
Finned-tube heat-distributing units, S36.1, 5
Finned-tube heat transfer coils, F1.25
Fins, F1.6
Fire/smoke management. See Smoke management
Firearm laboratories, A9.6
Fireplaces, S34.4
Fire safety
Fish, R19; R32
Fitness facilities. (See also Gymnasiums)
Fittings
Fixed-guideway vehicles, A11.7. (See also Mass-transit systems)
Fixture units, A50.1, 26
Flammability limits, gaseous fuels, F28.1
Flash tank, steam systems, S11.15
Floors
Flowers, cut
Flowmeters, A38.13; F36.18
Fluid dynamics computations, F13.1
Fluid flow, F3
Food. (See also specific foods)
955 Food service
Forced-air systems, residential, A1.1
Forensic labs, A9.5
Fouling factor
Foundations, moisture control, A44.11
Fountains, Legionella pneumophila control, A49.7
Fourier’s law, and heat transfer, F25.5
Four-pipe systems, S5.5
Framing
Freeze drying, A30.6
Freeze prevention. (See also Freeze protection systems)
Freeze protection systems, A51.17, 19
Freezers
Freezing
Friction, in fluid flow
Fruit juice, R38
Fruits
Fuel cells, combined heat and power (CHP), S7.22
Fuels, F28
Fume hoods, laboratory exhaust, A16.3
Fungal pathogens, F10.8
Furnaces, S33
Galleries. See Museums, galleries, archives, and libraries
Garages
Gases
956 Gas-fired equipment, S34. (See also Natural gas)
Gas vents, S35.1
GCHP. See Ground-coupled heat pumps (GCHP)
Generators
Geothermal energy, A34
Geothermal heat pumps (GHP), A34.10
Glaser method, F25.15
Glazing
Global warming potential (GWP), R6.1
Glycols, desiccant solution, S24.2
Graphical symbols, F37
Green design, and sustainability, F35.1
Greenhouses. (See also Plant environments)
Grids, for computational fluid dynamics, F13.4
Grilles, S20.4, 7
Ground-coupled heat pumps (GCHP)
Ground-source heat pumps (GSHP), A34.1, 9
Groundwater heat pumps (GWHP), A34.25
GSHP. See Ground-source heat pumps (GSHP)
Guard stations, in justice facilities, A9.4
GWHP. See Groundwater heat pumps (GWHP)
GWP. See Global warming potential (GWP)
Gymnasiums, A5.5; A7.3
HACCP. See Hazard analysis and critical control point (HACCP)
Halocarbon
Hartford loop, S11.3
Hay, drying, A25.7
Hazard analysis and control, F10.4
Hazard analysis and critical control point (HACCP), R22.4
Hazen-Williams equation, F22.1
HB. See Heat balance (HB)
Health
Health care facilities, A8. (See also specific types)
Heat
Heat and moisture control, F27.1
Heat balance, S9.19
Heat capacity, F25.1
Heat control, F27
Heaters, S34
Heat exchangers, S48
957 Heat flow, F25. (See also Heat transfer)
Heat flux, F25.1
Heat gain. (See also Load calculations)
Heating
Heating load
Heating values of fuels, F28.3, 7, 9
Heat loss. (See also Load calculations)
Heat pipes, air-to-air energy recovery, S26.13
Heat pumps
Heat recovery. (See also Energy, recovery)
Heat storage. See Thermal storage
Heat stress
Heat transfer, F4; F25; F26; F27. (See also Heat flow)
958 Heat transmission
Heat traps, A50.2
Helium
High-efficiency particulate air (HEPA) filters, A28.3; S29.6; S30.3
High-rise buildings. See Tall Buildings
High-temperature short-time (HTST) pasteurization, R33.2
High-temperature water (HTW) system, S13.1
Homeland security. See Chemical, biological, radiological, and explosive (CBRE) incidents
Hoods
Hospitals, A8.2
Hot-box method, of thermal modeling, F25.8
Hotels and motels, A6
Hot-gas bypass, R1.34
Houses of worship, A5.3
HSI. See Heat stress, index (HSI)
HTST. See High-temperature short-time (HTST) pasteurization
Humidification, S22
Humidifiers, S22
Humidity
HVAC security, A59
Hydrogen, liquid, R47.2
Hydronic systems, S35. (See also Water systems)
959 Hygrometers, F7.9; F36.10, 11
Hygrothermal loads, F25.2
Hygrothermal modeling, F25.16; F27.10
IAQ. See Indoor air quality (IAQ)
IBD. See Integrated building design (IBD)
Ice
Ice makers
Ice rinks, A5.5; R44
ID50‚ mean infectious dose, A59.8
Ignition temperatures of fuels, F28.2
IGUs. See Insulating glazing units (IGUs)
Illuminance, F36.30
Indoor air quality (IAQ). (See also Air quality)
Indoor environmental modeling, F13
Induction
Industrial applications
Industrial environments, A14; A31; A32
Industrial exhaust gas cleaning, S29. (See also Air cleaners)
Industrial hygiene, F10.3
Infiltration. (See also Air leakage)
Infrared applications
In-room terminal systems
Instruments, F14. (See also specific instruments or applications)
Insulating glazing units (IGUs), F15.4
Insulation, electrical, R6.9
Insulation, thermal
960 Integrated building design (IBD), A58.1
Integrated design process (IDP), A58.1
Intercoolers, ammonia refrigeration systems, R2.3
Jacketing, insulation, R10.7
Jails, A9.3
Joule-Thomson cycle, R47.6
Judges’ chambers, A9.5
Juice, R38.1
Jury facilities, A9.5
Justice facilities, A9
Juvenile facilities, A9.1. (See also Family courts)
K-12 schools, A7.2
Kelvin’s equation, F25.11
Kirchoff’s law, F1.13
Kitchens, A33
Kleemenko cycle, R47.13
Krypton, recovery, R47.18
Laboratories, A16
961 Laboratory information management systems (LIMS), A9.7
Lakes, heat transfer, A34.30
Laminar flow
Large eddy simulation (LES), turbulence modeling, F13.3; F24.10
Laser Doppler anemometers (LDA), F36.17
Laser Doppler velocimeters (LDV), F36.17
Latent energy change materials, S51.2
Laundries
LCR. See Load collector ratio (LCR)
LD50‚ mean lethal dose, A59.8
LDA. See Laser Doppler anemometers (LDA)
LDV. See Laser Doppler velocimeters (LDV)
LE. See Life expectancy (LE) rating
Leakage
Leakage function, relationship, F16.15
Leak detection of refrigerants, F29.9
Legionella pneumophila, A49.6; F10.7
Legionnaires’ disease. See Legionella pneumophila
LES. See Large eddy simulation (LES)
Lewis relation, F1.9; F9.4
Libraries. See Museums, galleries, archives, and libraries
Life expectancy (LE) rating, film, A22.3
Lighting
Light measurement, F36.30
LIMS. See Laboratory information management systems (LIMS)
Linde cycle, R47.6
Liquefied natural gas (LNG), S8.6
Liquefied petroleum gas (LPG), F28.5
Liquid overfeed (recirculation) systems, R4
Lithium bromide/water, F30.69
Lithium chloride, S24.2
Load calculations
Load collector ratio (LCR), A35.21
Local exhaust. See Exhaust
Loss coefficients
Louvers, F15.29
Low-temperature water (LTW) system, S13.1
LPG. See Liquefied petroleum gas (LPG)
LTW. See Low-temperature water (LTW) system
Lubricants, R12. (See also Lubrication; Oil)
Lubrication, R12
Mach number, S38.31
Maintenance. (See also Operation and maintenance)
962 Makeup air units, S28.8
Malls, A2.6
Manometers, differential pressure readout, A38.12
Manufactured homes, A1.7
Masonry, insulation, F26.7. (See also Building envelopes)
Mass transfer, F1
Mass-transit systems
McLeod gages, F36.13
Mean infectious dose (ID50), A59.8
Mean lethal dose (LD50), A59.8
Mean radiant temperature (MRT), A54.1
Mean temperature difference, F1.21
Measurement, F36. (See also Instruments)
Meat, R30
Mechanical equipment room, central
Mechanical traps, steam systems, S11.8
Medium-temperature water (MTW) system, S13.1
Meshes, for computational fluid dynamics, F13.4
Metabolic rate, F9.6
Metals and alloys, low-temperature, R48.6
Microbial growth, R22.4
Microbial volatile organic chemicals (MVOCs), F10.7
Microbiology of foods, R22.1
Microphones, F36.27
Mines, A29
Modeling. (See also Data-driven modeling; Energy, modeling)
Moist air
Moisture
963 Mold, F25.17
Montreal Protocol, F29.1
Motors, S45
Movie theaters, A5.3
MRT. See Mean radiant temperature (MRT)
Multifamily residences, A1.6
Multiple-use complexes
Multisplit unitary equipment, S49.1
Multizone airflow modeling, F13.14
Museums, galleries, archives, and libraries
MVOCs. See Microbial volatile organic compounds (MVOCs)
Natatoriums. (See also Swimming pools)
Natural gas, F28.5
Navier-Stokes equations, F13.1
NC curves. See Noise criterion (NC) curves
Net positive suction head (NPSH), A34.27; S44.10
Net positive suction pressure (NPSP), R2.3
Night setback, recovery, A42.36
Nitrogen
Noise, F8.13. (See also Sound)
Noise criterion (NC) curves, F8.16
Noncondensable gases
NPSP. See Net positive suction pressure (NPSP)
NTU. See Number of transfer units (NTU)
Nuclear facilities, A28
Number of transfer units (NTU)
Nursing facilities, A8.14
Nuts, storage, R42.7
Odors, F12
ODP. See Ozone depletion potential (ODP)
Office buildings
Oil, fuel, F28.6
Oil. (See also Lubricants)
Olf unit, F12.6
One-pipe systems
Operating costs, A37.4
Operation and maintenance, A39. (See also Maintenance)
964 Optimization, A42.4
Outdoor air, free cooling
Outpatient health care facilities, A8.14
Owning costs, A37.1
Oxygen
Ozone
Ozone depletion potential (ODP), R6.1
PAC. See Polycyclic aromatic compounds (PAC)
Packaged terminal air conditioners (PTACs), S50.5
Packaged terminal heat pumps (PTHPs), S50.5
PAH. See Polycyclic aromatic hydrocarbons (PAH)
Paint, and moisture problems, F25.17
Panel heating and cooling, S6. (See also Radiant heating and cooling)
Paper
Paper products facilities, A26
Paraffins, R12.3
Parallel compressor systems, R15.14
Particulate matter, indoor air quality (IAQ), F10.4, 6
Pasteurization, R33.2
Peanuts, drying, A25.8
PEL. See Permissible exposure limits (PEL)
Performance contracting, A41.2
Permafrost stabilization, R45.4
Permeability
Permeance
Permissible exposure limits (PELs), F10.6
Personal environmental control (PEC) systems, F9.25
Pharmaceutical manufacturing cleanrooms, A18.7
Phase-change materials, thermal storage of, S51.15, 25
Photographic materials, A22
Photovoltaic (PV) systems, S36.18. (See also Solar energy)
Physical properties of materials, F33
Physiological principles, humans. (See also Comfort)
Pigs. See Swine
Pipes, S46. (See also Piping)
965 Piping. (See also Pipes)
Pitot-static tubes, F36.17
Pitot tubes, A38.2; F36.17
Places of assembly, A5
Planes. See Aircraft
Plank’s equation, R20.7
Plant environments, A24.10
Plenums
PMV. See Predicted mean vote (PMV)
Police stations, A9.1
Pollutant transport modeling. See Contami- nants, indoor, concentration prediction
Pollution, air, and combustion, F28.7, 14
Polycyclic aromatic hydrocarbons (PAHs), F10.6
Polydimethylsiloxane, F31.13
Ponds, spray, S40.6
Pope cell, F36.12
Positive positioners, F7.8
Potatoes
Poultry. (See also Animal environments; Chickens; Turkeys)
Power-law airflow model, F13.14
Power plants, A27
PPD. See Predicted percent dissatisfied (PPD)
Prandtl number, F1.17
Precooling
Predicted mean vote (PMV), F36.31
Predicted percent dissatisfied (PPD), F9.18
Preschools, A7.1
Pressure
Pressure drop. (See also Darcy-Weisbach equation)
Primary-air systems, S5.10
966 Printing plants, A20
Prisons, A9.3
Produce
Propane
Propylene glycol, hydronic systems, S13.23
Psychrometers, F1.9
Psychrometrics, F1
PTACs. See Packaged terminal air condition- ers (PTACs)
PTHPs. See Packaged terminal heat pumps (PTHPs)
Public buildings. See Commercial and public buildings; Places of assembly
Pulldown load, R15.5
Pumps
Purge units, centrifugal chillers, S43.11
Radiant heating and cooling, A55; S6.1; S15; S33.4. (See also Panel heating and cooling)
Radiant time series (RTS) method, F18.2, 20
Radiation
Radiators, S36.1, 5
Radioactive gases, contaminants, F11.19
Radiometers, A54.7
Radon, F10.11, 17, 22
Rail cars
Railroad tunnels, ventilation
Rain, and building envelopes, F25.4
RANS. See Reynolds-Averaged Navier-Stokes (RANS) equation
Rapid-transit systems. See Mass-transit systems
Rayleigh number, F1.19
RC curves. See Room criterion (RC) curves
Receivers
Recycling refrigerants, R9.3
Refrigerant/absorbent pairs, F2.15
Refrigerant-control devices, R11
967 Refrigerants, F29.1
Refrigerant transfer units (RTU), liquid chillers, S43.11
Refrigerated facilities, R23
Refrigeration, F1.1. (See also Absorption)
968 Refrigeration, F1.1. (See also Adsorption)
Refrigeration oils, R12. (See also Lubricants)
Refrigerators
Regulators. (See also Valves)
Residential systems, A1
Resistance, thermal, F4; F25; F26. (See also R-values)
Resistance temperature devices (RTDs), F7.9; F36.6
Resistivity, thermal, F25.1
Resource utilization factor (RUF), F34.2
Respiration of fruits and vegetables, R19.17
Restaurants
Retail facilities, A2
Retrofit performance monitoring, A41.4
Retrofitting refrigerant systems, contaminant control, R7.9
Reynolds-averaged Navier-Stokes (RANS) equation, F13.3; F24.10
Reynolds number, F3.3
Rice, drying, A25.9
RMS. See Root mean square (RMS)
Road tunnels, A15.3
Roof ponds, Legionella pneumophila control, A49.7
Roofs
Room air distribution, A57; S20.1
Room criterion (RC) curves, F8.16
Root mean square (RMS), F36.1
Roughness factors, ducts, F21.6
RTDs. See Resistance temperature devices (RTDs)
RTS. See Radiant time series (RTS)
RTU. See Refrigerant transfer units (RTU)
RUF. See Resource utilization factor (RUF)
Rusting, of building components, F25.17
R-values, F23; F25; F26. (See also Resistance, thermal)
Safety
Safety showers, Legionella pneumophila control, A49.7
Sanitation
969 Savings-to-investment-ratio (SIR), A37.11
Scale
Schematic design, A58.9
Schneider system, R23.7
Schools
Security. See Chemical, biological, radio- logical, and explosive (CBRE) incidents
Seeds, storage, A25.11
Seismic restraint, A48.51; A55.1
Semivolatile organic compounds (SVOCs), F10.4, 12; F11.14
Sensors
Separators, lubricant, R11.23
Service water heating, A50
SES. See Subway environment simulation (SES) program
Shading
Ships, A13
Short-tube restrictors, R11.31
Single-duct systems, all-air, S4.10
SIR. See Savings-to-investment ratio (SIR)
Skating rinks, R44.1
Skylights, and solar heat gain, F15.27
Slab heating, A51
Slab-on-grade foundations, A44.11
SLR. See Solar-load ratio (SLR)
Smoke management, A53
Snow-melting systems, A51
Snubbers, seismic, A55.8
Sodium chloride brines, F31.1
Soft drinks, R39.10
Soils. (See also Earth)
Solar energy, A35; S37.1 (See also Solar heat gain; Solar radiation)
970 Solar heat gain, F15; F18.14
Solar-load ratio (SLR), A35.21
Solar-optical glazing, F15.13
Solar radiation, F14.7; F15.17
Solid fuel
Solvent drying, constant-moisture, A30.7
Soot, F28.17
Sorbents, F32.1
Sorption isotherm, F25.10, F26.19
Sound, F8. (See also Noise)
Sound control, A48; F8. (See also Noise)
Soybeans, drying, A25.6
Specific heat
Spot cooling
Spot heating, A54.4
Stack effect
Stadiums, A5.4
Stairwells, smoke control, A53.9
Standard atmosphere, U.S., F1.1
Standards, F39. (See also Codes)
971 Standards, S52. (See also Codes)
Static electricity and humidity, S22.2
Steam
Steam systems, S11
Steam traps, S11.7
Stefan-Boltzmann equation, F1.2, 12
Stevens’ law, F12.3
Stirling cycle, R47.14
Stokers, S31.16
Storage
Stoves, heating, S34.5
Stratification
Stroboscopes, F36.27
Subcoolers
Subway environment simulation (SES) program, A15.3
Subway systems. (See also Mass-transit systems)
Suction risers, R2.26
Sulfur content, fuel oils, F28.7
Superconductivity, diamagnetism, R47.5
Supervisory control, A42
Supply air outlets, S20.1. (See also Air outlets)
Surface effect. See Coanda effect
Surface transportation
Surface water heat pump (SWHP), A34.12
Sustainability, F16.1; F35.1; S49.2
972 SVFs. See Synthetic vitreous fibers (SVFs)
SVOCs. See Semivolatile organic compounds (SVOCs)
SWHP. See Surface water heat pump (SWHP)
Swimming pools. (See also Natatoriums)
Swine, recommended environment, A24.7
Symbols, F37
Synthetic vitreous fibers (SVFs), F10.5
Tachometers, F36.27
Tall buildings, A4
Tanks, secondary coolant systems, R13.2
Temperature
Temperature-controlled transport, R25.1
Temperature index, S22.3
Terminal units, A47.12; S20.8
Terminology, R50
Terrorism. See Chemical, biological, radio- logical, and explosive (CBRE) incidents
TES. See Thermal energy storage (TES)
Testing
Testing, adjusting, and balancing. (See also Balancing)
TETD/TA. See Total equivalent temperature differential method with time averaging (TETD/TA)
TEWI. See Total equivalent warming impact (TEWI)
Textile processing plants, A21
TFM. See Transfer function method (TFM)
Theaters, A5.3
Thermal bridges, F25.8
Thermal comfort. See Comfort
Thermal emittance, F25.2
Thermal energy storage (TES), S8.5, S51
Thermal properties, F26.1
Thermal resistivity, F25.1
Thermal storage, S51
973 Thermal transmission data, F26
Thermistors, R11.4
Thermodynamics, F2.1
Thermometers, F36.5
Thermopile, F7.4; F36.9; R45.4
Thermosiphons
Thermostats
Three-pipe distribution, S5.5
Tobacco smoke
Tollbooths
Total equivalent temperature differential method with time averaging (TETD/TA), F18.49
Total equivalent warming impact (TEWI), R6.1
Trailers and trucks, refrigerated, R25. (See also Cargo containers)
Transducers, pneumatic pressure, F7.10
Transfer function method (TFM), A40.9; F18.49
Transmittance, thermal, F25.2
Transmitters, pneumatic pressure, F7.10
Transpiration, R19.19
Transportation centers
Transport properties of refrigerants, F30
Traps
Trucks, refrigerated, R25. (See also Cargo containers)
Tuning automatic control systems, F7.18
Tunnels, vehicular, A15.1
Turbines, S7
Turbochargers, heat recovery, S7.34
Turbulence modeling, F13.3
Turbulent flow, fluids, F3.3
Turndown ratio, design capacity, S13.4
Two-node model, for thermal comfort, F9.18
Two-pipe systems, S5.5; S13.19
U.S. Marshal spaces, A9.5
U-factor
Ultralow-penetration air (ULPA) filters, S29.6; S30.3
Ultraviolet (UV) lamp systems, S17
974 Ultraviolet air and surface treatment, A60
Ultraviolet germicidal irradiation (UVGI), S16.1. [See also Ultraviolet (UV) lamp systems]
Uncertainty analysis
Underfloor air distribution (UFAD) systems, A4.5; A57.9
Unitary systems, S49
Unit heaters. See Heaters
Units and conversions, F38.1
Unit ventilators, S28.1
Utility interfacing, electric, S7.43
UV. See Ultraviolet (UV) lamp systems
UVGI. See Ultraviolet germicidal irradiation (UVGI)
Vacuum cooling, of fruits and vegetables, R28.9
Validation, of airflow modeling, F13.9, 10, 17
Valves, S46. (See also Regulators)
Vaporization systems, S8.6
Vapor pressure, F27.8; F33.2
Vapor retarders, jackets, F23.12
Variable-air-volume (VAV) systems
Variable-frequency drives, S45.12
Variable refrigerant flow (VRF), S18.1; S49.1, 13
VAV. See Variable-air-volume (VAV) systems
Vegetables, R37
Vehicles
Vena contracta, F3.4
Vending machines, R16.5
Ventilation, F16
975 Ventilators
Venting
Verification, of airflow modeling, F13.9, 10, 17
Vessels, ammonia refrigeration systems, R2.3
Vibration, F8.17
Vibration control, A48
Viral pathogens, F10.8
Virgin rock temperature (VRT), and heat release rate, A29.3
Viscosity, F3.1
Volatile organic compounds (VOCs), F10.11
Voltage, A56.1
Volume ratio, compressors
VRF. See Variable refrigerant flow (VRF)
VRT. See Virgin rock temperature (VRT)
Walls
Warehouses, A3.8
Water
Water heaters
Water/lithium bromide absorption
Water-source heat pump (WSHP), S2.4; S49.10
Water systems, S13
976 Water treatment, A49
Water vapor control, A44.6
Water vapor permeance/permeability, F26.16, 17
Water vapor retarders, F26.6
Water wells, A34.26
Weather data. See Climatic design information
Welding sheet metal, S19.10
Wet-bulb globe temperature (WBGT), heat stress, A31.5
Wheels, rotary enthalpy, S26.9
Whirlpools and spas
Wien’s displacement law, F1.12
Wind. (See also Climate design information; Weather data)
Wind chill index, F9.23
Windows. (See also Fenestration)
Wind restraint design, A55.15
Wineries
Wood construction, and moisture, F25.10
Wood products facilities, A26.1
Wood pulp, A26.2
Wood stoves, S34.5
World Wide Web (WWW), A40.8
WSHP. See Water-source heat pump (WSHP)
WWW. See World Wide Web (WWW)
Xenon, R47.18
977 F13AdditionsSI
981 SI_CommentPage
ASHRAE Fundamentals Handbook SI 2013
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