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'[EE] BTU of a Peltier junction?'
2005\03\26@182654 by Herbert Graf

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Was wondering if anybody knows of quick and dirty way to get an idea of
how many BTUs a peltier device of a certain size is capable of?

Not looking for any sort of precision, basically whether it's 1 or 10
would be enough.

Thanks, TTYL


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Herbert's PIC Stuff:
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2005\03\27@030304 by Howard Winter

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Herbert,

On Sat, 26 Mar 2005 18:26:54 -0500, Herbert Graf wrote:

> Was wondering if anybody knows of quick and dirty way
to get an idea of
> how many BTUs a peltier device of a certain size is
capable of?
>
> Not looking for any sort of precision, basically
whether it's 1 or 10
> would be enough.

If I remember rightly a BTU is 3.4W, so a 50W Peltier
unit would be 170BTU.

Cheers,


Howard Winter
St.Albans, England


2005\03\27@084956 by Howard Winter

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On Sun, 27 Mar 2005 09:02:58 +0000 (GMT), like an idiot, I wrote:

> If I remember rightly a BTU is 3.4W, so a 50W Peltier
> unit would be 170BTU.

Well my memory was sort-of there, but my typing was pants!  (As has been pointed out off-list...)

I reversed the ratio and omitted a dimension, so here goes again:

       1 Watt is approximately 3.4 BTU/hr.

I did the calculation correctly but omitted the time dimension again, so:

       a 50W Peltier would be about 170 BTU/hr.

Hopefully that's it!

Cheers,



Howard Winter
St.Albans, England


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