HVAC Calculation
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HVAC
Fan Laws Explained: Affinity Laws, System Curves and VFD Energy Savings
The fan laws explained for HVAC engineers: how airflow, pressure and power change with speed, where they apply, and how…
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HVAC
Cooling Coil Selection: ADP, Bypass Factor, Rows and Face Velocity Explained
How to select a chilled water cooling coil from coil load, ADP and bypass factor to rows, face velocity, water…
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HVAC
Smoke Exhaust Calculation for Atriums: NFPA 92 Plume Method Step by Step
How to calculate atrium smoke exhaust with the NFPA 92 axisymmetric plume method, from design fire to exhaust volume, plugholing…
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HVAC
Cooling Tower Sizing: Heat Rejection, Range, Approach and Make-up Water
How to size a cooling tower from heat rejection, condenser water flow, range, approach and design wet bulb, plus make-up…
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HVAC
Refrigerant Pipe Sizing for VRF and Split Systems: Step-by-Step Guide
How to size refrigerant liquid and suction lines for split and VRF systems, check VRF length limits and calculate additional…
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