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I don't think many people really understand how awful automobile-scale internal combustion engines are at efficiency. The only reason they work at all is thanks
by cosmic_cheese 9mo ago
I don't think many people really understand how awful automobile-scale internal combustion engines are at efficiency. The only reason they work at all is thanks to the absurd energy density of the fuels they burn.
- heresie-dabord 9mo ago8.9 kWh / litre of petrol [1] But more than 60% of that is lost as heat. The inefficiency increases in colder temperatures. [1] _ https://natural-resources.canada.ca/energy-efficiency/transportation-energy-efficiency/personal-vehicles/understanding-tables https://natural-resources.canada.ca/energy-efficiency/transp...