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

(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 VER 4/15/2000 __RH CHAPTER 15 AIR SYSTEMS: COMPONENTS — FANS, COILS, FILTERS, AND HUMIDIFIERS FAN FUNDAMENTALS Functions and Types of Fans Fan Capacity or Volume Flow Rate Fan Pressure Fan Power and Fan Efficiency Air Temperature Increase through Fan Fan Performance Curves Influence of Elevation and Temperature CENTRIFUGAL FANS Total Pressure Increase at Fan Impeller Backward-Curved Fans Radial-Bladed Fans Forward-Curved Fans Tubular or In-line Fans Unhoused Plug/Plenum Fans Centrifugal Roof Ventilators AXIAL FANS Types of Axial Fans Velocity Triangles Performance Curves FAN CAPACITY MODULATION Fan Speed Modulation with AdjustableFrequency, Variable-Speed Drives Inlet Vanes Modulation Inlet Cone Modulation Blade Pitch Modulation FAN SURGE AND STALL Fan Surge Fan Stall FAN CONSTRUCTION AND ARRANGEMENTS Size and Class Standards Fan Width and Inlets Drive Arrangements and Direction of Discharge High-Temperature Fans Spark-Resistant Construction Safety Devices FAN SELECTION Conditions Clarified and Factors Considered Estimated Fan Sound Power Level Comparison between Various Types of Fans Case Study — Selection of Fans COIL CHARACTERISTICS Types of Coils Fins Contact Conductance Water Circuits SENSIBLE COOLING AND SENSIBLE HEATING COILS — DRY COILS Heat Transfer in a Sensible Cooling Process Surface Heat-Transfer Coefficients Fin Efficiency Dry Coil Effectiveness Heating Coils Fluid Velocity and Pressure Drop Dry Coil at Part-Load Operation Coil Construction Parameters WATER COOLING COILS — DRY-WET COILS Dry-Wet Boundary Dry Part Wet Part .