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by gameofdrones
3650 days ago
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The most efficient fossil fuel-based engines are massive two-stroke diesels found on extremely large ships and in some peaker power gensets which currently have efficiencies just over 51% and BSFC's over 275. https://en.wikipedia.org/wiki/Brake_specific_fuel_consumptio... In this case, he may have matched the performance of very large engines, which have the advantages of optimizing for scale, but time will tell whether this solution can deliver. |
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Unless you count combined-cycle gas turbines (also found on big ships and powerplants), which can squeeze above 60% efficiency.