Port Stay Fuel & CO₂

Tally fuel and CO₂ across a port call: auxiliary engines running hotel load, boiler for cargo heat or steam, plus cargo-pump duty during loading or discharge.

VoyagePort callAux

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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

F_\text{aux} = \frac{(P_\text{hotel} \cdot h + P_\text{pump} \cdot h_\text{pump}) \cdot \text{SFOC}}{10^6}

Symbol	Meaning	Unit
$F_\text{aux}$	Auxiliary + pump fuel consumed at berth	t
$F_\text{boiler}$	Boiler fuel consumed at berth	t
$P_\text{hotel}$	Average hotel-load auxiliary power	kW
$P_\text{pump}$	Cargo-pump or extra aux load during cargo ops	kW
$h$	Hours alongside	h
$h_\text{pump}$	Hours of cargo-pump duty	h
$h_\text{boiler}$	Boiler-fired hours	h
$r_\text{boiler}$	Boiler fuel rate	kg / h
$\text{SFOC}$	Auxiliary SFOC at average load	g / kWh

Source: IMO MEPC.364(79) - Cf conversion factors; ESPO - port emissions inventories guidance

In short

Tally fuel and CO₂ for a port call - aux hotel load, boiler duty and cargo-pump hours - using MEPC.364(79) Cf factors.

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