Specific Fuel Oil Consumption (SFOC)

Estimate or interpolate SFOC (g/kWh) versus engine load. Optionally plot and compare curves.

Estimated SFOC: — g/kWh

Relative to 100 % MCR: — %

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Notes

SFOC often decreases until ~85–90 % MCR then rises again due to thermal & frictional losses.

Formula used: SFOC = SFOC₁₀₀ × [ 1 + a(1−L/100) + b(1−L/100)² ].

Typical a≈0.25, b≈0.75 for medium-speed diesels.