Brake Thermal Efficiency

Brake thermal efficiency from SFOC and fuel LCV. η_th = 3600 / (SFOC · LCV).

Engine

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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

\eta_{th} = \frac{3600}{\text{SFOC} \cdot \text{LCV}}

Symbol	Meaning	Unit
$SFOC$	Specific fuel oil consumption	g/kWh
$LCV$	Lower calorific value	MJ/kg
$\eta_{th}$	Brake thermal efficiency

Source: Heywood - Internal Combustion Engine Fundamentals

Brake thermal efficiency from SFOC and fuel LCV.