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Old 09-19-2019, 01:33 PM   #11 (permalink)
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Originally Posted by RedDevil View Post
You're trying to heat the wrong component in the combustion process.
The combustion process should run about a stoichiometric air-fuel ratio of 14.7 - 1 (mass related) so by heating the fuel you are just heating 7% of the mass involved, which will have very little effect.
If you heat the air instead you heat the other 93% involved - and it is way less risky.

I experimented a bit with heating intake air. It does have an effect: it makes the engine idle lower earlier and (anti intuitively) the engine heats up less fast, probably because the combustion process itself is running more efficiently. I may well have another try at the eWAI coming winter.
He is right about that.
Much better off heating the air.

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Old 09-20-2019, 12:04 AM   #12 (permalink)
It's all about Diesel
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Heating the fuel tank is only eventually worth in a Diesel engine, but never to the point of turning the fuel into vapor. Just as a cold-start aid. When it comes to volatile fuels, I'm aware that some flexfuel cars in Brazil have heated injectors.

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