Mewis Duct - Fuel Savings Estimate

Annual fuel savings from a Becker Mewis Duct - typically 4–8 % for full-form hulls (tankers, bulkers).

MewisESDPre-swirl

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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

\Delta m = P_{ME} \cdot H \cdot \frac{\eta \cdot SFOC}{10^6}

Symbol	Meaning	Unit
$P_{ME}$	Main-engine power	kW
$\eta$	Saving fraction

Source: Becker Marine Systems - Mewis Duct

Annual fuel savings from a Becker Mewis Duct - typically 4\u20138 % for full-form hulls (tankers, bulkers).