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2009 ASHRAE Handbook Fundamentals TOC

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ASHRAE Fundamentals Handbook

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ASHRAE 2009 975
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PDF Pages PDF Title
1 ip09FrontCover
2 09FrontMatter_I-P
3 Dedicated To The Advancement Of
The Profession And Its Allied Industries
DISCLAIMER
10 ip09Inside4VolTOC
2009 FUNDAMENTALS
2008 HVAC SYSTEMS AND EQUIPMENT
11 2007 HVAC APPLICATIONS
2006 REFRIGERATION
13 ip09Spine
14 I-P_F09_Ch01
Composition of Dry and Moist Air
U.S. Standard Atmosphere
15 Thermodynamic Properties of Moist Air
Thermodynamic Properties of Water at Saturation
Humidity Parameters
Basic Parameters
25 Humidity Parameters Involving Saturation
Perfect Gas Relationships for Dry and Moist Air
26 Thermodynamic Wet-Bulb and Dew-Point Temperature
Numerical Calculation of Moist Air Properties
27 Moist Air Property Tables for Standard Pressure
Psychrometric Charts
29 Typical Air-Conditioning Processes
Moist Air Sensible Heating or Cooling
Moist Air Cooling and Dehumidification
Adiabatic Mixing of Two Moist Airstreams
30 Adiabatic Mixing of Water Injected into Moist Air
Schematic Showing Injection of Water into Moist Air
31 Space Heat Absorption and Moist Air Moisture Gains
32 Transport Properties of Moist Air
Symbols
33 References
Bibliography
34 I-P_F09_Ch02
Thermodynamics
Stored Energy
Energy in Transition
35 First Law of Thermodynamics
Second Law of Thermodynamics
36 Thermodynamic Analysis of Refrigeration Cycles
Equations of State
37 Calculating Thermodynamic Properties
38 Phase Equilibria for Multicomponent Systems
39 Compression Refrigeration Cycles
Carnot Cycle
40 Theoretical Single-Stage Cycle Using a Pure Refrigerant or Azeotropic Mixture
41 Lorenz Refrigeration Cycle
42 Theoretical Single-Stage Cycle Using Zeotropic Refrigerant Mixture
43 Multistage Vapor Compression Refrigeration Cycles
44 Actual Refrigeration Systems
46 Absorption Refrigeration Cycles
Ideal Thermal Cycle
Working Fluid Phase Change Constraints
47 Temperature Glide
Working Fluids
48 Absorption Cycle Representations
Conceptualizing the Cycle
49 Absorption Cycle Modeling
Analysis and Performance Simulation
50 Double-Effect Cycle
51 Ammonia/Water Absorption Cycles
52 Symbols
53 References
Bibliography
54 I-P_F09_Ch03
Fluid Properties
Density
Viscosity
55 Basic Relations of Fluid Dynamics
Continuity in a Pipe or Duct
Bernoulli Equation and Pressure Variation in Flow Direction
56 Laminar Flow
Turbulence
Basic Flow Processes
Wall Friction
57 Boundary Layer
Flow Patterns with Separation
58 Drag Forces on Bodies or Struts
Nonisothermal Effects
59 Flow Analysis
Generalized Bernoulli Equation
Conduit Friction
61 Valve, Fitting, and Transition Losses
62 Control Valve Characterization for Liquids
Incompressible Flow in Systems
63 Flow Measurement
64 Unsteady Flow
65 Compressibility
66 Compressible Conduit Flow
Cavitation
Noise in Fluid Flow
67 Symbols
References
Bibliography
68 I-P_F09_Ch04
Heat Transfer Processes
Conduction
Convection
69 Radiation
Combined Radiation and Convection
Contact or Interface Resistance
Heat Flux
70 Overall Resistance and Heat Transfer Coefficient
Thermal Conduction
One-Dimensional Steady-State Conduction
71 Two- and Three-Dimensional Steady-State Conduction: Shape Factors
Extended Surfaces
75 Transient Conduction
78 Thermal Radiation
Blackbody Radiation
79 Actual Radiation
80 Angle Factor
81 Radiant Exchange Between Opaque Surfaces
83 Radiation in Gases
Thermal Convection
Forced Convection
88 Heat Exchangers
Mean Temperature Difference Analysis
NTU-Effectiveness (e) Analysis
90 Plate Heat Exchangers
Heat Exchanger Transients
Heat Transfer Augmentation
91 Passive Techniques
94 Active Techniques
97 Symbols
98 Greek
Subscripts
References
100 Bibliography
Fins
101 Heat Exchangers
Heat Transfer, General
102 I-P_F09_Ch05
Boiling
Boiling and Pool Boiling in Natural Convection Systems
105 Maximum Heat Flux and Film Boiling
Flooded Evaporators
Forced-Convection Evaporation in Tubes
108 Boiling in Plate Heat Exchangers
109 Condensing
Condensation on Inside Surface of Horizontal Tubes
111 Noncondensable Gases
112 Other Impurities
Pressure Drop
Friedel Correlation
113 Lockhart and Martinelli Correlation
Grönnerud Correlation
Müller-Steinhagen and Heck Correlation
114 Recommendations
Pressure Drop in Plate Heat Exchangers
115 Enhanced Surfaces
Symbols
116 References
120 I-P_F09_Ch06
Molecular Diffusion
Fick’s Law
Fick’s Law for Dilute Mixtures
121 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
122 Diffusion of One Gas Through a Second Stagnant Gas
123 Equimolar Counterdiffusion
Molecular Diffusion in Liquids and Solids
124 Convection of Mass
Mass Transfer Coefficient
Analogy Between Convective Heat and Mass Transfer
128 Lewis Relation
Simultaneous Heat and Mass Transfer Between Water-Wetted Surfaces and Air
Enthalpy Potential
129 Basic Equations for Direct-Contact Equipment
130 Air Washers
131 Cooling Towers
Cooling and Dehumidifying Coils
132 Symbols
133 References
Bibliography
134 I-P_F09_Ch07
Terminology
135 Types of Control Action
Two-Position Action
Modulating Control
136 Combinations of Two-Position and Modulating
137 Classification by Energy Source
Computers for Automatic Control
Control Components
Controlled Devices
Valves
139 Dampers
141 Positive (Pilot) Positioners
Sensors
142 Temperature Sensors
Humidity Sensors
Pressure Transmitters and Transducers
143 Flow Rate Sensors
Indoor Air Quality Sensors
Lighting Level Sensors
Power Sensing and Transmission
Controllers
Digital Controllers
144 Electric/Electronic Controllers
Pneumatic Receiver-Controllers
Thermostats
Auxiliary Control Devices
147 Communication Networks for Building Automation Systems
Communication Protocols
OSI Network Model
Network Structure
148 Connections Between BAS Networks and Other Computer Networks
149 Transmission Media
150 Specifying BAS Networks
Specification Method
Communication Tasks
Approaches to Interoperability
Standard Protocols
151 Gateways and Interfaces
Specifying DDC Systems
Commissioning
Tuning
Tuning Proportional, PI, and PID Controllers
152 Tuning Digital Controllers
153 Computer Modeling of Control Systems
Codes and Standards
References
Bibliography
154 I-P_F09_Ch08
Acoustical Design Objective
Characteristics of Sound
Levels
Sound Pressure and Sound Pressure Level
155 Frequency
Speed
Wavelength
Sound Power and Sound Power Level
Sound Intensity and Sound Intensity Level
156 Combining Sound Levels
Resonances
Absorption and Reflection of Sound
157 Room Acoustics
Acoustic Impedance
Measuring Sound
Instrumentation
Time Averaging
Spectra and Analysis Bandwidths
158 Sound Measurement Basics
159 Measurement of Room Sound Pressure Level
160 Measurement of Acoustic Intensity
Determining Sound Power
Free-Field Method
Reverberation Room Method
161 Progressive Wave (In-Duct) Method
Sound Intensity Method
Measurement Bandwidths for Sound Power
Converting from Sound Power to Sound Pressure
162 Sound Transmission Paths
Spreading Losses
Direct Versus Reverberant Fields
Airborne Transmission
Ductborne Transmission
Room-to-Room Transmission
163 Structureborne Transmission
Flanking Transmission
Typical Sources of Sound
Source Strength
Directivity of Sources
Acoustic Nearfield
Controlling Sound
Terminology
164 Enclosures and Barriers
Partitions
165 Sound Attenuation in Ducts and Plenums
166 Standards for Testing Duct Silencers
System Effects
Human Response to Sound
Noise
167 Predicting Human Response to Sound
Sound Quality
Loudness
168 Acceptable Frequency Spectrum
Sound Rating Systems and Acoustical Design Goals
A-Weighted Sound Level (dBA)
169 Noise Criteria (NC) Method
Balanced Noise Criteria (NCB) Method
170 Room Criterion (RC) Method
Room Criteria (RC) Mark II Method
Procedure for Determining the RC Mark II Rating for a System
171 Estimating Occupant Satisfaction Using QAI
Criteria Selection Guidelines
Fundamentals of Vibration
Single-Degree-of-Freedom Model
172 Mechanical Impedance
Natural Frequency
173 Practical Application for Nonrigid Foundations
Vibration Measurement Basics
174 Symbols
References
175 Bibliography
176 I-P_F09_Ch09
Human Thermoregulation
177 Energy Balance
Thermal Exchanges with the Environment
178 Body Surface Area
Sensible Heat Loss from Skin
Evaporative Heat Loss from Skin
179 Respiratory Losses
Alternative Formulations
180 Total Skin Heat Loss
181 Engineering Data and Measurements
Metabolic Rate and Mechanical Efficiency
182 Heat Transfer Coefficients
183 Clothing Insulation and Permeation Efficiency
185 Total Evaporative Heat Loss
Environmental Parameters
186 Conditions for Thermal Comfort
187 Thermal Complaints
188 Thermal Comfort and Task Performance
189 Thermal Nonuniform Conditions and Local Discomfort
Asymmetric Thermal Radiation
Draft
190 Vertical Air Temperature Difference
Warm or Cold Floors
191 Secondary Factors Affecting Comfort
Day-to-Day Variations
Age
Adaptation
Sex
Seasonal and Circadian Rhythms
Prediction of Thermal Comfort
Steady-State Energy Balance
193 Two-Node Model
194 Adaptive Models
Zones of Comfort and Discomfort
195 Environmental Indices
Effective Temperature
196 Humid Operative Temperature
Heat Stress Index
Index of Skin Wettedness
Wet-Bulb Globe Temperature
197 Wet-Globe Temperature
Wind Chill Index
198 Special Environments
Infrared Heating
199 Comfort Equations for Radiant Heating
Hot and Humid Environments
200 Extremely Cold Environments
202 Symbols
Codes and Standards
203 References
205 Bibliography
206 I-P_F09_Ch10
Background
207 Descriptions of Selected Health Sciences
Epidemiology and Biostatistics
208 Industrial Hygiene
Microbiology and Mycology
Toxicology
Hazard Recognition, Analysis, and Control
Hazard Control
209 Airborne Contaminants
Particles
Industrial Environments
210 Synthetic Vitreous Fibers
Combustion Nuclei
211 Particles in Nonindustrial Environments
Bioaerosols
213 Gaseous Contaminants
214 Industrial Environments
Nonindustrial Environments
217 Physical Agents
Thermal Environment
Range of Healthy Living Conditions
Hypothermia
218 Hyperthermia
Seasonal Patterns
Increased Deaths in Heat Waves
219 Effects of Thermal Environment on Specific Diseases
Injury from Hot and Cold Surfaces
Electrical Hazards
Mechanical Energies
Vibration
220 Standard Limits
221 Sound and Noise
Electromagnetic Radiation
222 Ionizing Radiation
Nonionizing Radiation
223 Ergonomics
224 References
228 I-P_F09_Ch11
Classes of Air Contaminants
229 Particulate Contaminants
Particulate Matter
Solid Particles
Liquid Particles
Complex Particles
Sizes of Airborne Particles
231 Particle Size Distribution
Units of Measurement
Measurement of Airborne Particles
233 Typical Particle Levels
Bioaerosols
Units of Measurement
234 Sampling
Control
235 Gaseous Contaminants
Harmful Effects of Gaseous Contaminants
237 Units of Measurement
Measurement of Gaseous Contaminants
238 Volatile Organic Compounds
240 Controlling Exposure to VOCs
241 Inorganic Gases
Controlling Exposures to Inorganic Gases
242 Air Contaminants by Source
Outdoor Air Contaminants
243 Industrial Air Contaminants
Nonindustrial Indoor Air Contaminants
244 Flammable Gases and Vapors
245 Combustible Dusts
246 Radioactive Air Contaminants
Radon
247 Soil Gases
References
249 Bibliography
250 I-P_F09_Ch12
Odor Sources
Sense of Smell
Olfactory Stimuli
251 Anatomy and Physiology
Olfactory Acuity
Factors Affecting Odor Perception
Humidity and Temperature
Sorption and Release of Odors
Emotional Responses to Odors
252 Odor Sensation Attributes
Detectability
Intensity
253 Character
254 Hedonics
Dilution of Odors by Ventilation
Odor Concentration
Analytical Measurement
Odor Units
255 Olf Units
References
257 Bibliography
258 I-P_F09_Ch13
Computational Fluid Dynamics
Mathematical and Numerical Background
260 Reynolds-Averaged Navier-Stokes (RANS) Approaches
Large Eddy Simulation (LES)
261 Direction Numerical Simulation (DNS)
Meshing for Computational Fluid Dynamics
Structured Grids
262 Unstructured Grids
Grid Quality
Immersed Boundary Grid Generation
Grid Independence
263 Boundary Conditions for Computational Fluid Dynamics
Inlet Boundary Conditions
264 Outlet Boundary Conditions
Wall/Surface Boundary Conditions
265 Symmetry Surface Boundary Conditions
266 Fixed Sources and Sinks
Modeling Considerations
CFD Modeling Approaches
Planning
Dimensional Accuracy and Faithfulness to Details
CFD Simulation Steps
Verification, Validation, and Reporting Results
267 Verification
269 Validation
270 Reporting CFD Results
271 Multizone Network Airflow and Contaminant Transport Modeling
Multizone Airflow Modeling
Theory
272 Solution Techniques
273 Contaminant Transport Modeling
Fundamentals
Solution Techniques
Multizone Modeling Approaches
Simulation Planning
Steps
274 Verification and Validation
Analytical Verification
275 Intermodel Comparison
Empirical Validation
277 Symbols
278 References
280 Bibliography
282 I-P_F09_Ch14
Climatic Design Conditions
Annual Design Conditions
284 Monthly Design Conditions
285 Data Sources
Calculation of Design Conditions
286 Differences from Previously Published Design Conditions
Applicability and Characteristics of Design Conditions
288 Calculating clear-sky solar radiation
Solar Constant and Extraterrestrial Solar Radiation
Equation of Time and Solar Time
289 Declination
Sun Position
290 Air Mass
Clear-Sky Solar Radiation
Transposition to Receiving Surfaces of Various Orientations
291 Solar Angles Related to Receiving Surfaces
Calculation of Clear-Sky Solar Irradiance Incident On Receiving Surface
292 Generating Design-Day Data
Estimation of Degree-Days
Monthly Degree-Days
293 Annual Degree-Days
Representativeness of Data and Sources of Uncertainty
Representativeness of Data
294 Uncertainty from Variation in Length of Record
Effects of Climate Change
295 Episodes Exceeding the Design Dry-Bulb Temperature
296 Other Sources of Climatic Information
Joint Frequency Tables of Psychrometric Conditions
Degree Days and Climate Normals
297 Typical Year Data Sets
Sequences of Extreme Temperature and Humidity Durations
Global Weather Data Source Web Page
Observational Data Sets
References
298 Bibliography
299 I-P_F09_Ch15
Fenestration Components
Glazing Units
300 Framing
Shading
Determining Fenestration Energy Flow
302 U-Factor (Thermal Transmittance)
Determining Fenestration U-Factors
Center-of-Glass U-Factor
Edge-of-Glass U-Factor
303 Frame U-Factor
Curtain Wall Construction
Surface and Cavity Heat Transfer Coefficients
310 Representative U-Factors for Doors
311 Solar Heat Gain and Visible Transmittance
Solar-Optical Properties of Glazing
Optical Properties of Single Glazing Layers
313 Optical Properties of Glazing Systems
315 Solar Heat Gain Coefficient
Calculation of Solar Heat Gain Coefficient
316 Diffuse Radiation
Solar Gain Through Frame and Other Opaque Elements
Solar Heat Gain Coefficient, Visible Transmittance, and Spectrally Averaged Solar-Optical Property Values
317 Airflow Windows
Skylights
Glass Block Walls
326 Plastic Materials for Glazing
Calculation of Solar Heat Gain
327 Opaque Fenestration Elements
Shading and Fenestration Attachments
Shading
Roof Overhangs: Horizontal and Vertical Projections
328 Fenestration Attachments
329 Simplified Methodology
Slat-Type Sunshades
330 Drapery
331 Roller Shades and Insect Screens
347 Visual and Thermal Controls
Operational Effectiveness of Shading Devices
Indoor Shading Devices
Double Drapery
348 Air Leakage
Infiltration Through Fenestration
Indoor Air Movement
349 Daylighting
Daylight Prediction
350 Light Transmittance and Daylight Use
352 Selecting Fenestration
Annual Energy Performance
Simplified Techniques for Rough Estimates of Fenestration Annual Energy Performance
Simplified Residential Annual Energy Performance Ratings
Condensation Resistance
354 Occupant Comfort and Acceptance
355 Sound Reduction
Strength and Safety
356 Life-Cycle Costs
Durability
Supply and Exhaust Airflow Windows
357 Codes and Standards
National Fenestration Rating Council (NFRC)
United States Energy Policy Act (EPAct)
The ICC 2006 International Energy Conservation Code
ASHRAE/IESNA Standard 90.1-2007
ASHRAE/USGBC/IESNA Draft Standard 189.1P
358 Canadian Standards Association (CSA)
Symbols
References
361 I-P_F09_Ch16
Sustainability Rating Systems
Basic Concepts and Terminology
Ventilation and Infiltration
362 Ventilation Air
Forced-Air Distribution Systems
Outside Air Fraction
363 Room Air Movement
Air Exchange Rate
364 Time Constants
Averaging Time-Varying Ventilation
Age of Air
365 Air Change Effectiveness
Tracer Gas Measurements
Decay or Growth
366 Constant Concentration
Constant Injection
Multizone Air Exchange Measurement
Driving Mechanisms for Ventilation and Infiltration
Stack Pressure
367 Wind Pressure
368 Mechanical Systems
Combining Driving Forces
369 Neutral Pressure Level
Thermal Draft Coefficient
370 Indoor Air Quality
371 Protection from Extraordinary Events
Thermal Loads
372 Effect on Envelope Insulation
Infiltration Degree-Days
Natural Ventilation
Natural Ventilation Openings
373 Ceiling Heights
Required Flow for Indoor Temperature Control
Airflow Through Large Intentional Openings
Flow Caused by Wind Only
Flow Caused by Thermal Forces Only
374 Natural Ventilation Guidelines
Hybrid Ventilation
Residential Air Leakage
Envelope Leakage Measurement
375 Airtightness Ratings
Conversion Between Ratings
Building Air Leakage Data
376 Air Leakage of Building Components
Leakage Distribution
377 Multifamily Building Leakage
Controlling Air Leakage
Residential Ventilation
379 Residential Ventilation Zones
Shelter in Place
Safe Havens
Residential Ventilation and IAQ Control Requirements
380 Source Control
Local Exhaust
381 Whole-House Ventilation
Air Distribution
Selection Principles for Residential Ventilation Systems
382 Simplified Models of Residential Ventilation and Infiltration
Empirical Models
Multizone Models
Single-Zone Models
Superposition of Wind and Stack Effects
383 Residential Calculation Examples
384 Combining Residential Infiltration and Mechanical Ventilation
385 Commercial and Institutional Air Leakage
Commercial Building Envelope Leakage
Air Leakage Through Internal Partitions
386 Air Leakage Through Exterior Doors
Air Leakage Through Automatic Doors
387 Air Exchange Through Air Curtains
Commercial and Institutional Ventilation
388 Ventilation Rate Procedure
Survey of Ventilation Rates in Office Buildings
Office Building Example
Location
Building
Occupancy
389 Infiltration
Local Exhausts
390 Ventilation
391 Symbols
References
396 Bibliography
397 I-P_F09_Ch17
Residential Features
Calculation Approach
398 Other Methods
Residential Heat Balance (RHB) Method
Residential Load Factor (RLF) Method
399 Common Data and Procedures
General Guidelines
Basic Relationships
Design Conditions
400 Building Data
401 Load Components
404 Cooling Load
Peak Load Computation
Opaque Surfaces
Slab Floors
405 Transparent Fenestration Surfaces
406 Infiltration and Ventilation
Internal Gain
Air Distribution System: Heat Gain
Total Latent Load
407 Summary of RLF Cooling Load Equations
Heating Load
Exterior Surfaces Above Grade
Below-Grade and On-Grade Surfaces
Surfaces Adjacent to Buffer Space
408 Ventilation and Infiltration
Humidification
Pickup Load
Summary of Heating Load Procedures
Load Calculation Example
Solution
410 Symbols
411 References
412 Bibliography
413 I-P_F09_Ch18
Cooling Load Calculation Principles
Terminology
Heat Flow Rates
414 Time Delay Effect
Cooling Load Calculation Methods
Cooling Load Calculations in Practice
415 Data Assembly
Internal Heat Gains
People
Lighting
Instantaneous Heat Gain from Lighting
418 Electric Motors
Overloading or Underloading
Radiation and Convection
Appliances
419 Cooking Appliances
420 Hospital and Laboratory Equipment
Office Equipment
423 Infiltration and Moisture Migration Heat Gains
Infiltration
425 Standard Air Volumes
Heat Gain Calculations Using Standard Air Values
426 Latent Heat Gain from Moisture Diffusion
Other Latent Loads
Fenestration Heat Gain
Fenestration Direct Solar , Diffuse Solar , and Conductive Heat Gains
427 Exterior Shading
Heat Balance Method
Assumptions
Elements
Outside-Face Heat Balance
428 Wall Conduction Process
Inside-Face Heat Balance
429 Using SHGC to Calculate Solar Heat Gain
430 Air Heat Balance
General Zone for Load Calculation
431 Mathematical Description
Conduction Process
Heat Balance Equations
Overall HB Iterative Solution
432 Input Required
Radiant Time Series (RTS) Method
433 Assumptions and Principles
Overview
434 RTS Procedure
Heat Gain Through Exterior Surfaces
Sol-Air Temperature
435 Calculating Conductive Heat Gain Using Conduction Time Series
437 Heat Gain Through Interior Surfaces
Floors
438 Calculating Cooling Load
440 Heating Load Calculations
442 Heat Loss Calculations
Outdoor Design Conditions
Indoor Design Conditions
Calculation of Transmission Heat Losses
444 Infiltration
Heating Safety Factors and Load Allowances
Other Heating Considerations
System Heating and Cooling Load Effects
Zoning
445 Ventilation
Air Heat Transport Systems
On/Off Control Systems
Variable-Air-Volume Systems
Constant-Air-Volume Reheat Systems
Mixed Air Systems
Heat Gain from Fans
446 Duct Surface Heat Transfer
Duct Leakage
Ceiling Return Air Plenum Temperatures
447 Ceiling Plenums with Ducted Returns
Floor Plenum Distribution Systems
Plenums in Load Calculations
Central Plant
Piping
448 Pumps
Example Cooling and Heating Load Calculations
Single-Room Example
Room Characteristics
Cooling Loads Using RTS Method
456 Single-Room Example Peak Heating Load
457 Whole-Building Example
Design Process and Shell Building Definition
458 Tenant Fit Design Process and Definition
459 Room by Room Cooling and Heating Loads
460 Conclusions
461 Previous Cooling Load Calculation Methods
References
464 Bibliography
467 Building Example Drawings
475 I-P_F09_Ch19
General Considerations
Models and Approaches
Characteristics of Models
Forward Models
476 Data-Driven Models
477 Choosing an Analysis Method
Selecting Energy Analysis Computer Programs
Tools for Energy Analysis
Component Modeling and Loads
Calculating Space Sensible Loads
478 Heat Balance Method
479 Weighting-Factor Method
480 Normalized Coefficients of Space Air Transfer Functions
Thermal-Network Methods
481 Ground Heat Transfer
Simplified Calculation Method for Slab Foundations and Basements
483 Secondary System Components
Fans, Pumps, and Distribution Systems
484 Heat and Mass Transfer Components
485 Application to Cooling and Dehumidifying Coils
486 Primary System Components
Modeling Strategies
488 Boiler Model
489 Vapor Compression Chiller Models
490 Cooling Tower Model
491 System Modeling
Overall Modeling Strategies
Degree-Day and Bin Methods
492 Balance Point Temperature
Annual Degree-Day Method
494 Monthly Degree-Days
495 Bin Method
496 Correlation Methods
Simulating Secondary and Primary Systems
497 Modeling of System Controls
Integration of System Models
498 Data-Driven Modeling
Categories of Data-Driven Methods
Empirical or “Black-Box” Approach
Calibrated Simulation Approach
499 Gray-Box Approach
Types of Data-Driven Models
Steady-State Models
503 Dynamic Models
504 Examples Using Data-Driven Methods
Modeling Utility Bill Data
Neural Network Models
505 Model Selection
MODEL VALIDATION AND TESTING
506 Methodological Basis
External Error Types
Internal Error Types
507 Summary of Previous Testing and Validation Work
References
511 Bibliography
515 I-P_F09_Ch20
Indoor Air Quality and Sustainability
516 Applicable Standards and Codes
Terminology
517 Principles of Jet Behavior
Air Jet Fundamentals
520 Isothermal Radial Flow Jets
Nonisothermal Jets
Nonisothermal Horizontal Free Jet
Comparison of Free Jet to Attached Jet
Surface Jets (Wall and Ceiling)
521 Multiple Jets
Airflow in Occupied Zone
System Design
Mixed-Air Systems
Outlet Types
523 Outlet Selection and Location
525 Inlet Selection and Location
Ceiling-Based Air Diffusion
526 System Performance Evaluation
528 Fully Stratified Systems
Convective Flows Associated with Space Heat Sources
Characteristics of Thermal Plumes
529 Vertical temperature Distribution
530 Contaminant Distribution
Design Methods
Ventilation and Heating
Outlet Types
531 Outlet Selection and Location
Return Inlet Selection and Location
System Performance Evaluation
Partially Mixed Systems
532 Lower (Mixed) Zone
Stratified Zone
Upper (Mixed) Zone
Temperature Near Floor
Stratification Height
533 Controlling Stratification
Heating Systems
Outlets Types
Outlet Selection and Location
Return Inlet Selection and Location
534 System Performance Evaluation
Task/Ambient Conditioning (TAC)
Symbols
References
536 Bibliography
537 I-P_F09_Ch21
Bernoulli Equation
538 Head and Pressure
Static Pressure
Velocity Pressure
Total Pressure
Pressure Measurement
System Analysis
541 Pressure Changes in System
542 Fluid Resistance
Friction Losses
Darcy and Colebrook Equations
Roughness Factors
543 Friction Chart
Noncircular Ducts
545 Dynamic Losses
Local Loss Coefficients
Duct Fitting Database
Bends in Flexible Duct
547 Ductwork Sectional Losses
Darcy-Weisbach Equation
Fan/System Interface
Fan Inlet and Outlet Conditions
Fan System Effect Coefficients
549 Testing, Adjusting, and Balancing Considerations
Duct System Design
Design Considerations
Space Pressure Relationships
Fire and Smoke Management
550 Duct Insulation
Duct System Leakage
551 System Component Design Velocities
552 System and Duct Noise
Testing and Balancing
Duct Design Methods
Equal-Friction Method
Static Regain Method
553 T-Method
Balancing Dampers
Constant-Volume (CV) Systems
Variable-Air-Volume (VAV) Systems
554 HVAC Duct Design Procedures
555 Industrial Exhaust System Duct Design
557 References
562 Fitting Loss Coefficients
Round Fittings
588 Rectangular Fittings
605 I-P_F09_Ch22
Pressure Drop Equations
Darcy-Weisbach Equation
Hazen-Williams Equation
Valve and Fitting Losses
608 Losses in Multiple Fittings
Calculating Pressure Losses
609 Water Piping
Flow Rate Limitations
Noise Generation
Erosion
Allowances for Aging
610 Water Hammer
Other Considerations
Other Piping Materials and Fluids
Hydronic System Piping
Range of Usage of Pressure Drop Charts
Air Separation
612 Valve and Fitting Pressure Drop
Service Water Piping
615 Plastic Pipe
Procedure for Sizing Cold Water Systems
616 Steam Piping
Pipe Sizes
617 Sizing Charts
Low-Pressure Steam Piping
High-Pressure Steam Piping
Use of Basic and Velocity Multiplier Charts
Steam Condensate Systems
Two-Pipe Systems
623 One-Pipe Systems
624 Gas Piping
625 Fuel Oil Piping
626 Pipe Sizes for Heavy Oil
References
629 I-P_F09_Ch23
Design Considerations
Energy Conservation
Economic Thickness
630 Personnel Protection
631 Condensation Control
Freeze Prevention
632 Noise Control
633 Fire Safety
634 Corrosion Under Insulation
635 Materials and Systems
Categories of Insulation Materials
Physical Properties of Insulation Materials
636 Weather Protection
637 Vapor Retarders
638 Installation
Pipe Insulation
640 Tanks, Vessels, and Equipment
Ducts
643 Design Data
Estimating Heat Loss and Gain
Controlling Surface Temperatures
645 Project Specifications
646 Standards
647 References
649 I-P_F09_Ch24
Flow Patterns
651 Wind Pressure on Buildings
Local Wind Pressure Coefficients
652 Surface-Averaged Wall Pressures
Roof Pressures
653 Interference and Shielding Effects on Pressures
654 Sources of Wind Data
Estimating Wind at Sites Remote from Recording Stations
655 Wind Effects on System Operation
Natural and Mechanical Ventilation
657 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
Computational Modeling
658 Physical Modeling
659 Similarity Requirements
Wind Simulation Facilities
Designing Model Test Programs
660 Symbols
References
662 Bibliography
663 I-P_F09_Ch25
Terminology and Symbols
Heat
664 Air
Moisture
Environmental Hygrothermal Loads
Ambient Temperature and Humidity
665 Solar Radiation
Exterior Condensation
Wind-Driven Rain
666 Construction Moisture
Ground- and Surface Water
Air Pressure Differentials
Heat Transfer
667 Steady-State Thermal Response
Thermal Resistance of a Flat Assembly
668 Combined Convective and Radiative Surface Transfer
Heat Flow Across an Air Space
Total Thermal Resistance of a Flat Building Assembly
669 Thermal Transmittance of a Flat Building Assembly
Interface Temperatures in a Flat Building Component
Series and Parallel Heat Flow Paths
Thermal Bridges and Whole-Assembly Thermal Transmittance
Transient Thermal Response
Airflow
670 Water Vapor Flow by Air Movement
Heat Flux with Airflow
Moisture Transfer
Moisture Storage in Building Materials
672 Moisture Flow Mechanisms
Water Vapor Flow by Diffusion
Water Flow by Capillary Suction
673 Liquid Flow at Low Moisture Content
674 Transient Moisture Flow
Combined Heat, Air , and Moisture Transfer
Simplified Hygrothermal Design Calculations and Analyses
Surface Humidity and Condensation
675 Interstitial Condensation and Drying
Dew-Point Methods
Transient Computational Analysis
676 Criteria to Evaluate Hygrothermal Simulation Results
Thermal Comfort
Perceived Air Quality
Human Health
Durability of Finishes and Structure
677 Energy Efficiency
References
679 I-P_F09_Ch26
Thermal Properties
Air Spaces
Surface Resistances
Air Cavities
680 Building and Thermal Insulation Materials
Thermal Insulation Materials
682 Basic Materials
Physical Structure and Form
Apparent Thermal Conductivity
689 Mechanical Properties
Health and Safety
690 Acoustics
Other Properties
Building Materials
Property Data
Soils
691 Air Transmission and Hygric Properties
Air Barriers and Water Vapor Retarders
Air Barriers
692 Vapor Retarders
Functions and Properties
693 Classifications
Air Transmission and Water Vapor Property Data
Moisture Storage Data
696 Codes and Standards
697 References
700 Bibliography
701 I-P_F09_Ch27
Heat Transfer
One-Dimensional U-Factor Calculation
Wall U-Factor
702 Roof U-Factor
Attics
Basement Walls and Floors
703 Two-Dimensional U-Factor Calculation
Wood-Frame Walls
704 Masonry Walls
Constructions Containing Metal
705 Zone Method of Calculation
706 Modified Zone Method for Metal Stud Walls with Insulated Cavities
707 Complex Assemblies
708 Windows and Doors
Moisture Transport
Wall or Roof with Insulated Sheathing
Vapor Pressure Profile (Glaser or Dew-Point) Analysis
709 Winter Wall Wetting Examples
711 Transient Hygrothermal Modeling
712 Air Movement
Equivalent Permeance
References
713 Bibliography
715 I-P_F09_Ch28
Principles of Combustion
Combustion Reactions
Flammability Limits
716 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
717 Heating Value
Table 3 Heating Values of Substances Occurring in Common Fuels
Altitude Compensation
718 Fig. 1 Altitude Effects on Gas Combustion Appliances
Fig. 1 Altitude Effects on Gas Combustion Appliances
719 Fuel Classification
Gaseous Fuels
Types and Properties
720 Table 4 Propane/Air and Butane/Air Gas Mixtures
Liquid Fuels
Types of Fuel Oils
Characteristics of Fuel Oils
721 Fig. 2 Approximate Viscosity of Fuel Oils
Fig. 2 Approximate Viscosity of Fuel Oils
Table 5 Sulfur Content of Marketed Fuel Oils
Table 6 Typical API Gravity, Density, and Higher Heating Value of Standard Grades of Fuel Oil
722 Types and Properties of Liquid Fuels for Engines
Solid Fuels
Types of Coals
Table 7 Classification of Coals by Ranka
723 Characteristics of Coal
Table 8 Typical Ultimate Analyses for Coals
Combustion Calculations
724 Air Required for Combustion
Table 9 Approximate Air Requirements for Stoichiometric Combustion of Fuels
725 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
726 Water Vapor and Dew Point of Flue Gas
Fig. 3 Water Vapor and Dew Point of Flue Gas
Fig. 3 Water Vapor and Dew Point of Flue Gas
Sample Combustion Calculations
727 Fig. 4 Theoretical Dew Points of Combustion Products of Industrial Fuels
Fig. 4 Theoretical Dew Points of Combustion Products of Industrial Fuels
Efficiency Calculations
Fig. 5 Influence of Sulfur Oxides on Flue Gas Dew Point
Fig. 5 Influence of Sulfur Oxides on Flue Gas Dew Point
728 Seasonal Efficiency
Combustion Considerations
Air Pollution
729 Fig. 6 Flue Gas Losses with Various Fuels
Fig. 6 Flue Gas Losses with Various Fuels
730 Table 12 NOx Emission Factors for Combustion Sources Without Emission Controls
Condensation and Corrosion
731 Abnormal Combustion Noise in Gas Appliances
Soot
References
732 Bibliography
733 I-P_F09_Ch29
Refrigerant Properties
Global Environmental Properties
736 Physical Properties
737 Electrical Properties
Sound Velocity
738 Refrigerant Performance
740 Safety
Leak Detection
Electronic Detection
Bubble Method
UV Dye Method
741 Ammonia Leaks
Effect on Construction Materials
Metals
Elastomers
742 Plastics
References
Bibliography
743 I-P_F09_Ch30
744 Refrigerant 12
746 Refrigerant 22
748 Refrigerant 23
750 Refrigerant 32
752 Refrigerant 123
754 Refrigerant 124
756 Refrigerant 125
758 Refrigerant 134a
762 Refrigerant 143a
764 Refrigerant 152a
766 Refrigerant 245fa
768 Refrigerant 404A
770 Refrigerant 407C
772 Refrigerant 410A
774 Refrigerant 507A
776 Refrigerant 717 (Ammonia)
778 Refrigerant 718 (Water/Steam)
780 Refrigerant 744 (Carbon Dioxide)
782 Refrigerant 50 (Methane)
784 Refrigerant 170 (Ethane)
786 Refrigerant 290 (Propane)
788 Refrigerant 600 (n-Butane)
790 Refrigerant 600a (Isobutane)
792 Refrigerant 1150 (Ethylene)
794 Refrigerant 1270 (Propylene)
796 Refrigerant 702 (Normal Hydrogen)
798 Refrigerant 702p (Parahydrogen)
800 Refrigerant 704 (Helium)
802 Refrigerant 728 (Nitrogen)
804 Refrigerant 729 (Air)
806 Refrigerant 732 (Oxygen)
808 Refrigerant 740 (Argon)
810 Ammonia/Water Solutions Prepared by Kwang Kim and Keith Herold, Center for Environmental Energy Engineering, University of Maryland at College Park
812 Water/Lithium Bromide Solutions
813 Aqueous Lithium Bromide Solutions
814 References
819 I-P_F09_Ch31
Brines
Physical Properties
822 Corrosion Inhibition
Inhibited Glycols
Physical Properties
829 Corrosion Inhibition
Service Considerations
830 Halocarbons
831 Nonhalocarbon, Nonaqueous Fluids
References
Bibliography
832 I-P_F09_Ch32
Desiccant Applications
Desiccant Cycle
834 Types of Desiccants
Liquid Absorbents
835 Solid Adsorbents
836 Desiccant Isotherms
Desiccant Life
Cosorption of Water Vapor and Indoor Air Contaminants
837 References
Bibliography
838 I-P_F09_Ch33
841 References
842 I-P_F09_Ch34
Characteristics of Energy and Energy Resource Forms
Forms of On-Site Energy
Nonrenewable and Renewable Energy Resources
Characteristics of Fossil Fuels and Electricity
843 On-Site Energy/Energy Resource Relationships
Quantifiable Relationships
Intangible Relationships
844 Summary
Energy Resource Planning
Integrated Resource Planning (IRP)
Tradable Emission Credits
845 Overview of Global Energy Resources
World Energy Resources
Production
Reserves
846 Consumption
847 Carbon Emissions
U.S. Energy Use
Per Capita Energy Consumption
848 Projected Overall Energy Consumption
849 Outlook Summary
U.S. Agencies and Associations
References
Bibliography
850 I-P_F09_Ch35
Definition
Characteristics of Sustainability
Sustainability Addresses the Future
Sustainability Has Many Contributors
Sustainability Is Comprehensive
Technology Plays Only a Partial Role
851 Factors Impacting Sustainability
Primary HVAC&R Considerations in Sustainable Design
Energy Resource Availability
Fresh Water Supply
852 Effective and Efficient Use of Energy Resources and Water
Material Resource Availability and Management
Air, Noise, and Water Pollution
Solid and Liquid Waste Disposal
Factors Driving Sustainability into Design Practice
Climate Change
853 Regulatory Environment
Evolving Standards of Care
Changing Design Process
854 Other Opportunities
Designing for Effective Energy Resource Use
Energy Ethic: Resource Conservation Design Principles
Energy and Power
Simplicity
Self-Imposed Budgets
Design Process for Energy-Efficient Projects
855 Building Energy Use Elements
857 References
Bibliography
858 I-P_F09_Ch36
Terminology
860 Uncertainty Analysis
Uncertainty Sources
Uncertainty of a Measured Variable
861 Temperature Measurement
Sampling and Averaging
862 Static Temperature Versus Total Temperature
Liquid-in-Glass Thermometers
Sources of Thermometer Errors
Resistance Thermometers
863 Resistance Temperature Devices
864 Thermistors
Semiconductor Devices
Thermocouples
865 Wire Diameter and Composition
Multiple Thermocouples
866 Surface Temperature Measurement
Thermocouple Construction
Optical Pyrometry
Infrared Radiation Thermometers
Infrared Thermography
867 Humidity Measurement
Psychrometers
868 Dew-Point Hygrometers
Condensation Dew-Point Hygrometers
Salt-Phase Heated Hygrometers
Mechanical Hygrometers
Electrical Impedance and Capacitance Hygrometers
Dunmore Hygrometers
869 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
Calibration
870 Pressure Measurement
Units
Instruments
Pressure Standards
Mechanical Pressure Gages
871 Electromechanical Transducers
General Considerations
872 Air Velocity Measurement
Airborne Tracer Techniques
Anemometers
Deflecting Vane Anemometers
Propeller or Revolving (Rotating) Vane Anemometers
Cup Anemometers
Thermal Anemometers
874 Laser Doppler Velocimeters (or Anemometers)
Particle Image Velocimetry (PIV)
Pitot-Static Tubes
Example Calculation
875 Measuring Flow in Ducts
876 Airflow-Measuring Hoods
Flow Rate Measurement
Flow Measurement Methods
Venturi, Nozzle, and Orifice Flowmeters
878 Variable-Area Flowmeters (Rotameters)
Positive-Displacement Meters
Turbine Flowmeters
879 Air Infiltration, Airtightness, and Outdoor Air Ventilation Rate Measurement
880 Carbon Dioxide
Carbon Dioxide Measurement
Nondispersive Infrared CO2 Detectors
Calibration
881 Applications
Amperometric Electrochemical CO2 Detectors
Photoacoustic CO2 Detectors
Open-Cell Sensors
Closed-Cell Sensors
Potentiometric Electrochemical CO2 Detectors
Colorimetric Detector Tubes
882 Laboratory Measurements
Electric Measurement
Ammeters
Voltmeters
Wattmeters
Power-Factor Meters
Rotative Speed Measurement
Tachometers
Stroboscopes
AC Tachometer-Generators
884 Sound and Vibration Measurement
Sound Measurement
Microphones
Sound Measurement Systems
Frequency Analysis
Sound Chambers
885 Calibration
Vibration Measurement
Transducers
Vibration Measurement Systems
Calibration
886 Lighting Measurement
Thermal Comfort Measurement
Clothing and Activity Level
Air Temperature
Air Velocity
Plane Radiant Temperature
Mean Radiant Temperature
887 Air Humidity
Calculating Thermal Comfort
Integrating Instruments
Moisture Content and Transfer Measurement
Sorption Isotherm
Vapor Permeability
888 Liquid Diffusivity
Heat Transfer Through Building Materials
Thermal Conductivity
Thermal Conductance and Resistance
Air Contaminant Measurement
889 Combustion Analysis
Flue Gas Analysis
Data Acquisition and Recording
Digital Recording
890 Data-Logging Devices
Standards
891 Symbols
892 References
893 Bibliography
894 I-P_F09_Ch37
Abbreviations for Text, Drawings, and Computer Programs
Computer Programs
Letter Symbols
903 Piping System Identification
Definitions
Method of Identification
904 Codes and Standards
906 I-P_F09_Ch38
908 I-P_F09_Ch39
Selected Codes and Standards Published by Various Societies and Associations (Continued)
933 Organizations
936 2009INDEX_I-PIX
2009 ASHRAE Handbook Fundamentals TOC
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