Math Question
John Napoli
jgn at li.net
Sat Sep 21 01:34:31 GMT 1996
You have just described the evolution from the normally aspirated I/C
engine to one that is turbocharged to one that has a turbine assist for
more than just increasing the pressure of the charge (ie, adds mechanical
work too) to the turbine engine. It happened a while ago in aviation. :)
John
On Thu, 19 Sep 1996, Jim Butler wrote:
>
> >From: John Napoli[SMTP:jgn at li.net]
> >Sent: Tuesday, September 17, 1996 11:15 PM
> >To: diy_efi at coulomb.eng.ohio-state.edu
> >Subject: Re: Math Question
> >
> >
> > If we were able to utilize a third of the waste heat, wouldn't that make a
> > big difference? Instead of raising CAFE with smaller and lighter cars, we
> > would raise it by being more efficient. I doubt that all the EFI software
> > in the world will make much more MPG than we see right now. I would like
> > to see something intelligent about using the waste heat.
>
>
> In a relatively old textbook that I have on heat engines (40's or 50's
> era) there's a discussion of the idea of following an IC with a gas-turbine.
> The context wasn't like that of a turbocharger, but rather with the turbine
> shaft connected though a mechanical drive to the driveshaft, hence combining
> the output of the two for useful work.
>
> FWIW,
>
> Jim
>
> --
> Jim Butler (butler at comm.mot.com)
>
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