Sea Water Cooling Pump Capacity
Q = Q_cooling_duty / (ρ·cp·ΔT) - cooling-water pump sized to reject engine heat at design ΔT.
Mass flow
119.0kg/s
Volumetric flow
418m³/h
Formula, assumptions, and limits
$$Q_\text{pump} = \frac{\dot Q}{c_p \Delta T \rho}$$
cp = 4.2 kJ/(kg·K), ρ = 1025 kg/m³ for sea water. Typical design ΔT 5 K. Heat rejection ≈ (jacket + aux + LO + CAC + condenser) ~ 20-25 % of ME rated power on two-strokes.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $\dot Q$ | Heat rejection duty | kW | engine heat balance |
| $ΔT$ | Cooling water ΔT | K | design |
| $c_p$ | Sea-water specific heat | kJ/(kg·K) | 4.2 |
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