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From: mcgeer%ucbkim%Berkeley)@sri-unix.ARPA
Newsgroups: net.physics
Subject: Re: My "FUSION this decade?" this article
Message-ID: <467@sri-arpa.ARPA>
Date: Mon, 5-Aug-85 19:54:46 EDT
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Posted: Mon Aug  5 19:54:46 1985
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From:  mcgeer%ucbkim@Berkeley (Rick McGeer (on an aaa-60-s))


>BTW, heat pumps have an efficiency greater than 100%.  They
>are air conditioners run backwards.  They generate heat on their
>own and draw some from the ground.  They still obey the 
>second law.

	I take it that efficiency, for purposes of this discussion, is
joules of heat delivered/joules consumed in operation.  What is the typical
efficiency of a commercial heat pump?

					Rick.