>-----Original Message-----
>From: Jake Anderson [mailto:grooveee@OPTUSHOME.COM.AU]
>Sent: 16 January 2004 12:53
>To: PICLIST@MITVMA.MIT.EDU
>Subject: Re: [EE:] About test boxes (hot and cold)
>
>
>a peltier will shoot for roughly 65C temperature difference
>hot side to cold side.
>

As an aside,  many people don't realise that the heat pumping capacity of
the TEC falls as the temperature difference across the TEC increases.  As
the temperature difference approaches the maximum for any particular device,
the heat pumping capacity drops to zero. The power rating given to TEC's is
for a temperature difference of zero.

Regards

Mike




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