On 6/22/06, Tracy R Reed <[EMAIL PROTECTED]> wrote:
Stewart Stremler wrote:
> begin quoting Andrew Lentvorski as of Tue, Jun 20, 2006 at 10:12:02PM -0700:
>
>> *ALL* of that heat has to be dissipated somehow.
>>
>
> Yes. But if it's getting dumped into a heatsink eight inches (or eight
> feet) from the actual chip, it's somebody else's problem.
>
And if you can dump it 8 feet away you can make it dump it outside your
home by hanging the radiator or heat pipe or whatever out the window and
avoid heating up your room.
The hidden point is that contrary to popular illusion, Peltier
Junction devices do not transmit the heat from one place to another by
electricity. They get colder on one side and hotter on the other
side, and you the mechanical engineer have to transmit this energy
away from the hot side. All the heat energy that goes into the cold
side, plus the added energy necessary to transfer it to the hot side.
(electric power is supplied to the Peltier Junction to make it do its
thing)
carl
--
carl lowenstein marine physical lab u.c. san diego
[EMAIL PROTECTED]
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