Re: Exergy (Re: Quasiturbine - Over unity air motor ?)

From: Don Lancaster (don_at_tinaja.com)
Date: 11/08/04 

Date: Mon, 08 Nov 2004 09:06:15 -0700

"G. R. L. Cowan" wrote:
>
> charliew2 wrote:
> >
> > Eunometic <eunometic@yahoo.com.au> wrote in message
> > news:e935396a.0411071953.6bae1139@posting.google.com...
> > > "Ivar S. Ertesvåg" <ivar.s.ertesvag@ntnu.no> wrote in message
> > news:<cme9mv$dqm$1@orkan.itea.ntnu.no>...
> > > > Mike wrote:
> > > >
> > > > >
> > > > > "Ivar S. Ertesvåg" wrote:
> > > > >
> > > > >
> > > > >>17 Wh/liter is a miscalcualtion.
> > > > >>The exergy is 35 Wh/liter (300 K in both compressed air and
> > > > >>surroundings), and that is the maximum you can get, including all
> > > > >>reheating and other remedies you can think of.
> > > > >
> > >
> > >
> > > MDI's calculation come in a 42.6 watt hours liter for recovery.
> > > There 300L of storage would provide 12.77kw.hr energy.
> > > http://www.theaircar.com/ficha.html
> > >
> > > Near perfect recovery of the stored energy is possible: imagine a
> > > single cylinder (theoretically firctionless) expanding till all
> > > differential pressure is absent. It will cool as it expands. If the
> > > expansion is slow enough the air will rewarm fast enough to achieve
> > > full recovery.
> >
> > This is possible, but not practical. Theoretical arguments remain
> > theoretical if no consumers buy the product because of extremely poor
> > performance relative to what is available today.
>
> The air car project meets its goals if enough investors invest,
> and none of them find out where the principals live.
>
> --- Graham Cowan
> http://www.eagle.ca/~gcowan/Paper_for_11th_CHC.doc --
> fireproof fuel, real-car range, no emissions

Their address is a ski condo in Arizona's Whitlock Mountains. 

-- 
Many thanks,
Don Lancaster
Synergetics   3860 West First Street  Box 809  Thatcher, AZ 85552
voice: (928)428-4073 email: don@tinaja.com   
Please visit my GURU's LAIR web site at http://www.tinaja.com