HVAC calculations

Chilled-Water Flow Calculator

Estimate water flow from cooling capacity and supply/return temperature difference.

Calculator

Chilled-Water Flow Calculator

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Result -

Formula

Flow(m3/h) = (Capacity(kW) x 0.859845) / DeltaT

Worked example

100 kW at ΔT = 5 °C gives 100 × 0.86 / 5 = 17.2 m³/h.

Scope and interpretation

The approximation is for water. Glycol mixtures and temperature-dependent properties require different values.