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Sea Water Cooling Pump Capacity

Q = Q_cooling_duty / (ρ·cp·ΔT) - cooling-water pump sized to reject engine heat at design ΔT.

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Formula, assumptions, and limits

Qpump=Q˙cpΔTρQ_\text{pump} = \frac{\dot Q}{c_p \Delta T \rho}
SymbolMeaningUnit
Q˙\dot QHeat rejection dutykW
ΔTΔTCooling water ΔTK
cpc_pSea-water specific heatkJ/(kg·K)

Source: MAN ES / WinGD heat balance data

In short

Q = Q_cooling_duty / (\u03c1\u00b7cp\u00b7\u0394T) - cooling-water pump sized to reject engine heat at design \u0394T.

Learn the theory Marine Auxiliary Engines and Generators