Re: Zero Pollution cars

LARRY SULLIVAN ( polymercanada@bc.sympatico.ca )
Fri, 07 May 1999 07:58:28 -0700

O.K. I'll bit. "Compressed air is cold",when you compress air into a
tank you release heat which is disapated through the metal skin of the
tank. So whenever one compresses air one has heat loss and it has to go
somewhere, same goes for the metal lines. You are further compressing
air running through a small line not to mention the friction and the
metal lines become the heat sink. So compress air,heat loss, let
compressed air expand and apsorb heat. Its the principal that
refrigeration / heat exchangers is made of.

Larry

Jerry W. Decker wrote:
>
> Hi Larry!
>
> Highly compressed air is cold, eh? So how come you can almost burn your
> hand on a tank of compressed air...it is expulsion and expansion that
> cools...guess I just imagined having to keep our compressor room well
> ventilated to keep the tanks and compressors cool....when the air under
> pressure rushes through the main feed pipes, it was so hot you couldn't
> touch the pipe, and that was only 150psi....so that was empirical
> observation of many years on both piston and screw compressors...
> --
> Jerry Wayne Decker / jdecker@keelynet.com
> http://keelynet.com / "From an Art to a Science"
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