[Vwdiesel] New engine

Mark Shepherd mark at shepher.fsnet.co.uk
Fri Apr 15 11:46:02 EDT 2005

> This more detailed description was also on the site.
> so far I only have one question:
> Does preheating the air through the heat exchanger  have
any increased
> benefit  over using a turbo to add more air in?
> ____________________-
> Well, unless you use a rotary lock or some sort of device
to keep the air
> stuffed into the engine, the preheatment would just result
in less air
> intake overall, and barely any pressure, no?   I know the
diagrams are
> overly simplified, but inside the heat exchanger, if the
air takes up more
> space, to get to 6atm. you would need to trap it in there
somehow... sort of
> like a supercharger, or positive displacement pump working
as an airlock.
> -J

Preheating will not increase the energy from the compressed
air, except
by the energy spent in heating.  -Val

Val this is what I thought;  I'm thinking an exhaust powered
compressor would be better. Just didn't want to look
stupid[er than my usual zany self] I need to appear to know
what I'm talking about (8^D)

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