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 |  موضوع: كتاب Heating, Ventilating, and Air Conditioning - Analysis and Design الثلاثاء 20 نوفمبر 2018, 7:48 am | |
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Heating, Ventilating, and Air Conditioning - Analysis and Design
Sixth Edition
Faye C. McQuiston
Oklahoma State University
Jerald D. Parker
Oklahoma Christian University
Jeffrey D. Spitler
Oklahoma State University
ويتناول الموضوعات الأتية :
Contents
Preface xi
About the Authors xiii
Symbols xv
1. Introduction 1
1-1 Historical Notes 1
1-2 Common HVAC Units and Dimensions 3
1-3 Fundamental Physical Concepts 6
1-4 Additional Comments 18
References 18
Problems 19
2. Air-Conditioning Systems 22
2-1 The Complete System 22
2-2 System Selection and Arrangement 26
2-3 HVAC Components and Distribution Systems 28
2-4 Types of All-Air Systems 29
2-5 Air-and-Water Systems 36
2-6 All-Water Systems 37
2-7 Decentralized Cooling and Heating 39
2-8 Heat Pump Systems 41
2-9 Heat Recovery Systems 44
2-10 Thermal Energy Storage 45
References 46
Problems 46
3. Moist Air Properties and Conditioning Processes 49
3-1 Moist Air and the Standard Atmosphere 49
3-2 Fundamental Parameters 51
3-3 Adiabatic Saturation 53
3-4 Wet Bulb Temperature and the Psychrometric Chart 55
3-5 Classic Moist Air Processes 56
3-6 Space Air Conditioning—Design Conditions 65
3-7 Space Air Conditioning—Off-Design Conditions 75
References 79
Problems 79
v4. Comfort and Health—Indoor Environmental Quality 85
4-1 Comfort—Physiological Considerations 85
4-2 Environmental Comfort Indices 86
4-3 Comfort Conditions 89
4-4 The Basic Concerns of IAQ 92
4-5 Common Contaminants 93
4-6 Methods to Control Humidity 95
4-7 Methods to Control Contaminants 98
References 115
Problems 116
5. Heat Transmission in Building Structures 119
5-1 Basic Heat-Transfer Modes 119
5-2 Tabulated Overall Heat-Transfer Coefficients 138
5-3 Moisture Transmission 153
References 154
Problems 154
6. Space Heating Load 158
6-1 Outdoor Design Conditions 158
6-2 Indoor Design Conditions 159
6-3 Transmission Heat Losses 160
6-4 Infiltration 160
6-5 Heat Losses from Air Ducts 173
6-6 Auxiliary Heat Sources 175
6-7 Intermittently Heated Structures 175
6-8 Supply Air For Space Heating 175
6-9 Source Media for Space Heating 176
6-10 Computer Calculation of Heating Loads 177
References 178
Problems 179
7. Solar Radiation 181
7-1 Thermal Radiation 181
7-2 The Earth’s Motion About the Sun 184
7-3 Time 185
7-4 Solar Angles 187
7-5 Solar Irradiation 190
7-6 Heat Gain Through Fenestrations 197
7-7 Energy Calculations 212
References 213
Problems 213
vi Contents8. The Cooling Load 216
8-1 Heat Gain, Cooling Load, and Heat Extraction Rate 216
8-2 Application of Cooling Load Calculation Procedures 219
8-3 Design Conditions 220
8-4 Internal Heat Gains 221
8-5 Overview of the Heat Balance Method 226
8-6 Transient Conduction Heat Transfer 228
8-7 Outside Surface Heat Balance—Opaque Surfaces 231
8-8 Fenestration—Transmitted Solar Radiation 237
8-9 Interior Surface Heat Balance—Opaque Surfaces 240
8-10 Surface Heat Balance—Transparent Surfaces 246
8-11 Zone Air Heat Balance 249
8-12 Implementation of the Heat Balance Method 254
8-13 Radiant Time Series Method 255
8-14 Implementation of the Radiant Time Series Method 266
8-15 Supply Air Quantities 273
References 273
Problems 275
9. Energy Calculations and Building Simulation 279
9-1 Degree-Day Procedure 279
9-2 Bin Method 282
9-3 Comprehensive Simulation Methods 289
9-4 Energy Calculation Tools 293
9-5 Other Aspects of Building Simulation 294
References 295
Problems 297
10. Flow, Pumps, and Piping Design 299
10-1 Fluid Flow Basics 299
10-2 Centrifugal Pumps 310
10-3 Combined System and Pump Characteristics 314
10-4 Piping System Fundamentals 317
10-5 System Design 335
10-6 Steam Heating Systems 343
References 358
Problems 359
11. Space Air Diffusion 366
11-1 Behavior of Jets 366
11-2 Air-Distribution System Design 374
References 391
Problems 391
Contents vii12. Fans and Building Air Distribution 394
12-1 Fans 394
12-2 Fan Relations 394
12-3 Fan Performance and Selection 399
12-4 Fan Installation 407
12-5 Field Performance Testing 414
12-6 Fans and Variable-Air-Volume Systems 416
12-7 Air Flow in Ducts 418
12-8 Air Flow in Fittings 425
12-9 Accessories 437
12-10 Duct Design—General 439
12-11 Duct Design—Sizing 444
References 454
Problems 454
13. Direct Contact Heat and Mass Transfer 461
13-1 Combined Heat and Mass Transfer 461
13-2 Spray Chambers 464
13-3 Cooling Towers 472
References 479
Problems 479
14. Extended Surface Heat Exchangers 482
14-1 The Log Mean Temperature Deficiency (LMTD) Method 483
14-2 The Number of Transfer Units (NTU) Method 484
14-3 Heat Transfer–Single-Component Fluids 485
14-4 Transport Coefficients Inside Tubes 492
14-5 Transport Coefficients Outside Tubes and Compact Surfaces 496
14-6 Design Procedures for Sensible Heat Transfer 504
14-7 Combined Heat and Mass Transfer 513
References 524
Problems 525
15. Refrigeration 529
15-1 The Performance of Refrigeration Systems 529
15-2 The Theoretical Single-Stage Compression Cycle 531
15-3 Refrigerants 534
15-4 Refrigeration Equipment Components 540
15-5 The Real Single-Stage Cycle 553
15-6 Absorption Refrigeration 560
15-7 The Theoretical Absorption Refrigeration System 570
15-8 The Aqua–Ammonia Absorption System 572
15-9 The Lithium Bromide–Water System 576
References 578
Problems 579
viii ContentsAppendix A. Thermophysical Properties 583
Table A-1a Properties of Refrigerant 718 (Water–Steam)—
English Units 584
Table A-1b Properties of Refrigerant 718 (Water–Steam)—SI Units 585
Table A-2a Properties of Refrigerant 134a (1,1,1,2-Tetrafluoroethane)—
English Units 586
Table A-2b Properties of Refrigerant 134a (1,1,1,2-Tetrafluoroethane)—
SI Units 588
Table A-3a Properties of Refrigerant 22 (Chlorodifluoromethane)—
English Units 590
Table A-3b Properties of Refrigerant 22 (Chlorodifluoromethane)—
SI Units 592
Table A-4a Air—English Units 594
Table A-4b Air—SI Units 595
Appendix B. Weather Data 596
Table B-1a Heating and Cooling Design Conditions—United States, Canada,
and the World—English Units 597
Table B-1b Heating and Cooling Design Conditions—United States, Canada,
and the World—SI Units 600
Table B-2 Annual BinWeather Data for Oklahoma City,OK 603
Table B-3 Annual Bin Weather Data for Chicago, IL 603
Table B-4 Annual Bin Weather Data for Denver, CO 604
Table B-5 Annual Bin Weather Data for Washington, DC 604
Appendix C. Pipe and Tube Data 605
Table C-1 Steel Pipe Dimensions—English and SI Units 606
Table C-2 Type L Copper Tube Dimensions—English and SI Units 607
Appendix D. Useful Data 608
Table D-1 Conversion Factors 609
Contents ixAppendix E: Charts 611
Chart 1a ASHRAE Psychrometric Chart No. 1 (IP) (Reprinted by
permission of ASHRAE.) 611
Chart 1b ASHRAE Psychrometric Chart No. 1 (SI) (Reprinted by
permission of ASHRAE.) 611
Chart 1Ha ASHRAE Psychrometric Chart No. 4 (IP) (Reprinted by
permission of ASHRAE.) 612
Chart 1Hb ASHRAE Psychrometric Chart No. 6 (SI) (Reprinted by
permission of ASHRAE.) 612
Chart 2 Enthalpy–concentration diagram for ammonia–water solutions
(From Unit Operations by G. G. Brown, Copyright  1951
by John Wiley & Sons, Inc.) 613
Chart 3 Pressure–enthalpy diagram for refrigerant 134a (Reprinted by
permission.) 613
Chart 4 Pressure–enthalpy diagram for refrigerant 22 (Reprinted by
permission.) 614
Chart 5 Enthalpy-concentration diagram for Lithium Bromide–water
solutions (Courtesy of Institute of Gas Technology, Chicago IL.)
Index 615
x AppendixesPref
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