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From: sevenup@netcom.com (Mark W. Moorcroft)
Subject: Re: Solid State Cooling
Message-ID: <1993Feb25.010541.29344@netcom.com>
Keywords: solid state cooling
Organization: Netcom - Online Communication Services (408 241-9760 guest)
References: <1993Feb24.145131.17526@bcrka451.bnr.ca>
Distribution: na
Date: Thu, 25 Feb 1993 01:05:41 GMT
Lines: 50

--------The subject: Solid State Cooling 
Pearls of wisdom by: sandness@bnr.ca (Glen Sandness)


>As I understand it, when you ran current through this module one side of
>the module would get warm and the other side would get cool.  When the
>current was reversed, the warm side would get cool and the cool side warm.


It's called the peltier effect and it also works in reverse--apply
heat and you get electricity. The trouble is that they (peltier
modules) are really inefficient, worse than solar cells.


>
>Does anyone know where these cooling modules might still be available?


The company is called:

Melcor
1040 Spruce St.
Trenton, NJ  08648
609-393-4178


>Can anyone suggest other approaches to this problem?


There is a company that makes a computer cooled by a fluid filled
plastic bag draped over the circuit board to provide a heat path to
the outside of the case. It sounds risky but it really looks like an
elegant solution in living color. There are several companies
currently making chip coolers for i386/486 using peltier modules and
condensation IS DEFINITELY a consideration. I would also think that
the they are way too inefficient for anything battery powered.




--cheers



-- 

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 Mark W. Moorcroft -- sevenup@netcom.COM -- C.I.S. 70741,325
-------------------------------------------------------------
  "I speak for myself and those who agree with me !"   ;-)
