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Re: Re: Re: Re: R-134a, R-12 and Freeze 12 (Contin
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Posted by Jon H on March 19, 2004 at 07:13:57 from (69.26.17.34):
In Reply to: Re: Re: Re: R-134a, R-12 and Freeze 12 (Continued) posted by Slowpoke on March 19, 2004 at 00:51:50:
I have a dim memory of that story. I seem to remember that it used some type of scroll compressor and used air for the working fluid. I suspect it could never pump enough heat to do the job with only compressing and expanding of the working fluid(air)without it going through a phase change. Most conventional AC systems depend on a working fluid that can go through a phase change at fairly low pressure( gas compressed to liquid-liquid expanded to gas) as many times more heat must be absorbed or released to go through a phase change.
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