HVAC & R

COOLING AND HEATING EQUATIONS

SENSIBLE HEAT FACTOR & RATIO (SHR)

SUPPLY AIR FLOW RATE

AIR BALANCING EQUATIONS

CALCULATION OF HEATING AND COOLING DEGREE DAYS
FUEL CONSUMPTION BY HEATING AND COOLING UNITS
AIR CHANGE RATE EQUATION
ESTIMATING AIR LEAKAGE
VENTILATION FORMULA
ESTIMATING AIR VOLUME FOR HOODS AND ITS PRESSURE
DUCKWORK EQUATIONS
FAN EQUATIONS
PUMP EQUATION
CHILLER HEAT LOAD AND WATER FLOW
FRICTION LOSS IN WATER PIPES
COOLING TOWER
CONTROL VALVE SIZING
HEAT EXCHANGERS
HUMIDIFICATION AND DEHUMIDIFICATION
TON OF REFREGIRATION
ENERGY EFFICIENCY TERMS
DECIBLE CALCULATION
STEAM & CONDENSATE EQUATIONS
RELIEF VALVE SIZING
STEEL PIPE EQUATION
FLOW COEFFIECIENT
ELECTRICITY