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From: davidc@vlsisj.VLSI.COM (David Chapman)
Newsgroups: sci.electronics
Subject: Re: Air conditioners
Summary: heat out / power in
Keywords: refrigerator efficiency
Message-ID: <15243@vlsisj.VLSI.COM>
Date: 8 Jun 89 04:16:08 GMT
References: <8777@fluke.COM>
Reply-To: davidc@vlsisj.UUCP (David Chapman)
Distribution: na
Organization: VLSI Technology Inc., San Jose, CA
Lines: 15

In article <8777@fluke.COM> strong@tc.fluke.COM (Norm Strong) writes:
>Room air conditioners carry an energy efficiency rating.  It's a number
>ranging from around 6 to 10.

It's a measure of how much more cooling you get than power you get in (yes,
I know it sounds weird).  An EER of 10 says that for each watt of power put
into the compressor, 11 watts of heat dissipation go out the radiator.  Ten
watts of energy (heat) get sucked out of the room.  It's related to Carnot 
engines, which are really a mechanical engineering question, so I won't 
explain further.  E-mail me if you really care.
-- 
		David Chapman

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