Cargo Heat-Up - Time from Boiler

Time to warm a heated cargo from current temperature to discharge-pumpable temperature given boiler steam output and cargo mass - used in HFO and asphalt loading plans.

HeatingHFOSteam

Cargo masstCargo specific heatkJ/kg·KStart temperature°CTarget temperature°CSteam flow availablekg/hSteam latent heatkJ/kgHeat-transfer efficiency%

Total heat required: 1,537,500MJ

Net heat-transfer rate: 3,266.7kW

Heat-up time: 470.7h

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

t = \frac{m \cdot c_p \cdot \Delta T}{\eta \cdot \dot m_{steam} \cdot h_{fg}}

Symbol	Meaning	Unit
$m$	Cargo mass	t
$c_p$	Specific heat	kJ/kg·K
$\Delta T$	Temperature rise	K
$\dot m_{steam}$	Steam mass flow	kg/h
$h_{fg}$	Steam latent heat	kJ/kg

Source: ISGOTT 6th Ed

In short

Time to warm a heated cargo from current temperature to discharge-pumpable temperature given boiler steam output and cargo mass - used in HFO and asphalt loading plans.

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