Xref: utzoo comp.sys.ibm.pc.misc:4830 sci.electronics:16359
Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!i2unix!inria!chorus!opera!mir
From: mir@opera.chorus.fr (Adam Mirowski)
Newsgroups: comp.sys.ibm.pc.misc,sci.electronics
Subject: Re: Peltier effect device
Keywords: cooling
Message-ID: <7254@chorus.fr>
Date: 17 Dec 90 14:15:52 GMT
References: <1990Dec14.213730.10078@spool.cs.wisc.edu>
Sender: mir@chorus.fr
Reply-To: mir@opera.chorus.fr (Adam Mirowski)
Organization: Chorus systemes, Saint Quentin en Yvelines, France
Lines: 24

In article <1990Dec14.213730.10078@spool.cs.wisc.edu>, peng@chaource.cs.wisc.edu (PENG) writes:
%% I hope this has not been asked before.  On the December issue of Byte (p.132),
%% there is a short article on an interesting cooling device, which can be
%% mounted on a CPU and is able to cool the chip down to 0 degree centigrade.
%% This device, according to Byte, is a Peltier effect device, which is
%% "a thermoelectric cooling system based on the principle that passing a current
%% between two physically connected, dissimilar materials produces cooling on one
%% side and heat on the other."  I am not quite sure if I know what this
%% sentense is talking about.  Can someone knowledgeable elaborate this a little
%% bit?

That is one of the less known of the 4 thermoelectrical effects.
I remember having done some exercises on it on the second year. As
far as I remember, the Joule/Peltier ratio wasn't very impressive.
The materials must be semi-conductors.

French popular science magazine "Science et Vie" proposed its readers
to construct an experimental cooler based on Peltier principle early
in the eighties. The machine was able to produce ice cubes (< 0C), but
had to include a ventilator (good as a camping cooler).

-- 
Adam Mirowski,  mir@chorus.fr (FRANCE),  tel. +33 (1) 30-64-82-00 or 74
Chorus systemes, 6, av.Gustave Eiffel, 78182 Saint-Quentin-en-Yvelines CEDEX