Boiler Fuel Consumption

Size boiler fuel rate from steam demand and efficiency, then project fuel and CO₂ across the voyage. Needed for tanker cargo-heating, tank-cleaning, inert gas and accommodation-steam duties.

DesignBoiler

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\dot m_\text{fuel} = \frac{\dot m_\text{steam} \cdot h_\text{evap}}{\eta_\text{boiler} \cdot \text{LCV}}

Symbol	Meaning	Unit
$\dot m_\text{fuel}$	Fuel mass-flow to the boiler	t / h (or kg / h)
$\dot m_\text{steam}$	Steam production rate	t / h
$h_\text{evap}$	Evaporation enthalpy - 2260 MJ/t saturated, higher for superheat	MJ / t
$\eta_\text{boiler}$	Thermal efficiency - marine oil-fired 0.85–0.92
$\text{LCV}$	Lower calorific value of the boiler fuel	MJ / t (kg × 1000)

Source: Woodyard (Ed.) - *Pounder's Marine Diesel Engines and Gas Turbines*; IMO MEPC.364(79) - Cf conversion factors

In short

Size marine boiler fuel rate and voyage CO₂ from steam demand, enthalpy, boiler efficiency and fuel LCV.

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