A Hand Book For The Mechanical HVAC Designer

Engineering CookBook......Page 1
Table of Contents page 1 of 3......Page 2
Table of Contents page 2 of 3......Page 3
Table of Contents page 3 of 3......Page 4
Fan Selection Criteria......Page 5
Fan Testing - Laboratory, Field......Page 6
Use of Air Density Factors (An Example)......Page 7
Impeller Designs - Centrifugal page 1 of 2......Page 9
Impeller Designs - Centrifugal page 2 of 2......Page 10
Impeller Designs - Axial......Page 11
Terminology for Centrifugal Fan Components......Page 12
Drive Arrangements for Centrifugal Fans page 1 of 2......Page 13
Drive Arrangements for Centrifugal Fans page 2 of 2......Page 14
Rotation & Discharge Designations for Centrifugal Fans page 1 of 2......Page 15
Rotation & Discharge Designations for Centirfugal Fans page 2 of 2......Page 16
Motor Positions for Belt Drive Centrifugal Fans......Page 17
Fan Installation Guidelines......Page 18
Fan Troubleshooting Guide......Page 19
Index......Page 0
Definitions and Formulas......Page 20
Types of Alternating Current Motors page 1 of 2......Page 21
Motor Insulation Classes......Page 22
Locked Rotor KVA/HP......Page 23
Motor Efficiency and EPAct......Page 24
Single Phase Motors......Page 25
Three Phase Motors......Page 26
General Effect of Voltage and Frequency......Page 27
Allowable Ampacities of Not More Than Three Insulated Conductors page 1 of 2......Page 28
Allowable Ampacities of Not More Than Three Insulated Conductors page 2 of 2......Page 29
Belt Drives......Page 30
Estimated Belt Drive Loss†......Page 31
Bearing Life......Page 32
Process Ventilation......Page 33
Kitchen Ventilation......Page 34
Vibration Severity page 1 of 2......Page 42
Rules of Thumb page 1 of 2......Page 35
Sound Power and Sound Power Level......Page 36
Room Sones —dBA Correlation†......Page 37
Noise Criteria Curves......Page 38
Design Criteria for Room Loudness  page 1 of 2......Page 39
Design Criteria for Room Loudness  page 2 of 2......Page 40
Vibration......Page 41
Vibration Severity page 2 of 2......Page 43
Air Change Method......Page 44
Ventilation Rates for Acceptable Indoor Air Quality......Page 46
Heat Gain From Occupants of Conditioned Spaces......Page 47
Heat Gain From Typical Electric Motors......Page 48
Suggested Air Changes......Page 45
Rate of Heat Gain From Commercial Cooking Appliances in Air-Conditioned Areas......Page 49
Filter Comparison......Page 50
Relative Size Chart of Common Air Contaminants......Page 51
Optimum Relative Humidity Ranges for Health......Page 52
Damper Pressure Drop......Page 53
Screen Pressure Drop......Page 54
Duct Resistance......Page 55
Rectangular Equivalent of Round Ducts......Page 56
Typical Design Velocities for HVAC Components......Page 57
Velocity and Velocity Pressure Relationships......Page 58
U.S. Sheet Metal Gauges......Page 59
Wind Driven Rain Louvers......Page 60
Moisture and Air Relationships......Page 61
Properties of Saturated Steam......Page 62
Cooling Load Check Figures page 1 of 2......Page 63
Cooling Load Check Figures page 2 of 2......Page 64
Heat Loss Estimates page 1 of 2......Page 65
Fuel Gas Characteristics......Page 66
Annual Fuel Use page 1 of 2......Page 67
Pump Impeller Types......Page 68
Pump Mounting Methods......Page 69
Affinity Laws for Pumps......Page 70
Pumping System Troubleshooting Guide page 1 of 2......Page 71
Pumping System Troubleshooting Guide page 2 of 2......Page 72
Pump Terms, Abbreviations and Conversion Factors......Page 73
Water Flow and Piping page 1 of 2......Page 74
Friction Loss for Water Flow page 1 of 2......Page 75
Friction Loss for Water Flow page 2 of 2......Page 76
Equivalent Length of Pipe for Valves and Fittings......Page 77
Copper Tube Dimensions......Page 78
Typical Heat Transfer Coefficients......Page 79
Fouling Factors......Page 80
Cooling Tower Ratings......Page 81
Compressor Capacity Vs. Refrigerant Temperature at 100°F Condensing......Page 82
Refrigerant Line Capacities for R-22†......Page 83
Refrigerant Line Capacities for R-717......Page 84
Miscellaneous Formulas page 2 of 4......Page 86
Miscellaneous Formulas page 3 of 4......Page 87
Area and Circumference of Circles page 1 of 4......Page 88
Area and Circumference of Circles page 2 of 4......Page 89
Area and Circumference of Circles page 3 of 4......Page 90
Common Fractions of an Inch page 1 of 2......Page 91
Conversion Factors page 1 of 7......Page 92
Conversion Factors page 2 of 7......Page 93
Conversion Factors page 3 of 7......Page 94
Conversion Factors page 4 of 7......Page 95
Conversion Factors page 5 of 7......Page 96
Conversion Factors page 6 of 7......Page 97
Conversion Factors page 7 of 7......Page 98
Pyschrometric Chart......Page 99
C......Page 100
E......Page 101
G......Page 102
L......Page 103
P......Page 104
R......Page 105
U......Page 106
W......Page 107