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Cargo Heating Duty (Q = U·A·ΔT)

Heat duty to hold tank cargo at setpoint - steady-state loss through tank walls only.

TankerHeating
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Formula, assumptions, and limits

Q=UAΔTQ = U \cdot A \cdot \Delta T
SymbolMeaningUnit
UUOverall heat-transfer coefficientW/(m²·K)
AAHeat-transfer surface area
ΔTΔTCargo − sea/ambientK

Source: OCIMF - Cargo heating guidance

In short

Heat duty to hold tank cargo at setpoint - steady-state loss through tank walls only.

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