2007-02-28 13:33:34 · 3 answers · asked by nix_babe1 1 in Cars & Transportation ➔ Maintenance & Repairs
How hot does your engine, radiator and exhaust pipe get? This is all wasted heat. An ideal engine would generate just enough heat to run without excess - meaning that coolant wouldn't be needed.
2007-02-28 14:05:28 · answer #1 · answered by Me 6 · 0⤊ 0⤋
I just seen a program on the science channel that said an enternal combustion engine is about 20% efficient. Most of the waste would be heat caused by burning fuel and friction.
2007-02-28 21:38:40 · answer #2 · answered by renpen 7 · 0⤊ 0⤋
85%
33% to the cooling system
33% out the exhaust
19% to driveline friction and heat radiation
Heat is not wasted by burning fuel. Burning fuel is how energy is generated. Heat energy is what powers the engine. Heat of combution quadrupiles the compression pressure thus: 150 psi compression yields 600 psi combustion pressure, a gain of 450 psi.
2007-02-28 21:41:39 · answer #3 · answered by Arnon 6 · 0⤊ 0⤋