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Handbook of air conditioning and refrigeration (2nd edition): Part 2

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(BQ) Part 2 book "Handbook of air conditioning and refrigeration" has contents: Air systems- Air duct design, air systems - Space air diffusion, sound control, air systems - Basics and constant volume systems, air systems - Minimum ventilation and vav system controls, improving indoor air quality, energy management and global warming,.and other contents. | 39445 Wang (MCGHP) Ch_15 First Pass pg 15.1 VER 4/15/2000 _RH CHAPTER 15 AIR SYSTEMS: COMPONENTS — FANS, COILS, FILTERS, AND HUMIDIFIERS 15.1 FAN FUNDAMENTALS 15.2 Functions and Types of Fans 15.2 Fan Capacity or Volume Flow Rate 15.4 Fan Pressure 15.4 Fan Power and Fan Efficiency 15.4 Air Temperature Increase through Fan 15.5 Fan Performance Curves 15.5 Influence of Elevation and Temperature 15.6 15.2 CENTRIFUGAL FANS 15.7 Total Pressure Increase at Fan Impeller 15.7 Backward-Curved Fans 15.8 Radial-Bladed Fans 15.10 Forward-Curved Fans 15.11 Tubular or In-line Fans 15.12 Unhoused Plug/Plenum Fans 15.12 Centrifugal Roof Ventilators 15.14 15.3 AXIAL FANS 15.14 Types of Axial Fans 15.14 Velocity Triangles 15.16 Performance Curves 15.18 15.4 FAN CAPACITY MODULATION 15.20 Fan Speed Modulation with AdjustableFrequency, Variable-Speed Drives 15.20 Inlet Vanes Modulation 15.21 Inlet Cone Modulation 15.23 Blade Pitch Modulation 15.24 15.5 FAN SURGE AND STALL 15.24 Fan Surge 15.24 Fan Stall 15.24 15.6 FAN CONSTRUCTION AND ARRANGEMENTS 15.25 Size and Class Standards 15.25 Fan Width and Inlets 15.26 Drive Arrangements and Direction of Discharge 15.26 High-Temperature Fans 15.27 Spark-Resistant Construction 15.28 Safety Devices 15.28 15.7 FAN SELECTION 15.29 Conditions Clarified and Factors Considered 15.29 Estimated Fan Sound Power Level 15.30 Comparison between Various Types of Fans 15.31 Case Study — Selection of Fans 15.32 15.8 COIL CHARACTERISTICS 15.32 Types of Coils 15.33 Fins 15.33 Contact Conductance 15.37 Water Circuits 15.39 15.9 SENSIBLE COOLING AND SENSIBLE HEATING COILS — DRY COILS 15.39 Heat Transfer in a Sensible Cooling Process 15.39 Surface Heat-Transfer Coefficients 15.41 Fin Efficiency 15.42 Dry Coil Effectiveness 15.42 Heating Coils 15.44 Fluid Velocity and Pressure Drop 15.44 Dry Coil at Part-Load Operation 15.44 Coil Construction Parameters 15.45 15.10 WATER COOLING COILS — DRY-WET COILS 15.48 Dry-Wet Boundary 15.48 Dry Part 15.49 Wet Part .