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Re: Peltier Devices

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From: chrisgagne
Date: Jun 13th 2007, 04:06 EST
Subject: Re: Peltier Devices


On that same topic, here's a link to a YouTube video of one such device, apparently as a part of a college project:

http://www.youtube.com/watch?v=TQqQAqdNE88

This unit looks very well built (all sorts of complex components not easily produced with hand tools). Even with some good science and manufacture, it looks like it puts out a maximum of 130 mW. That's not exactly going to cut it. :)

Back to the drawing board.

On Jun 12th 2007, 22:10 EST, chrisgagne wrote:
> I came across something today that looked interesting:
>
>
> http://sci-toys.com/my_toys/stirling_engine.html
>
> See the bit at
> the bottom:
>
> ------
>
> The Heat Wave Wood Stove Fan.
> > by Thermal Engine Corporation
>
> When you want to move the
> hot air from the wood stove around the house, what better way than to use a
> Stirling Engine powered by the heat from the stove?
>
>
>
> >
> This little engine really moves, and moves 300 cubic feet of air
> per minute. It is quite robust, made of heavy gauge welded steel, aluminum
> and brass, and stands up to abuse, although it doesn't get much abuse
> sitting on top of the wood stove. We have played with it on a gas range that
> gets much hotter than the wood stove, and besides the steel getting a nice
> blue color, no damage was incurred.
>
> We don't let our wood
> stove get above about 500 degrees Fahrenheit, for safety reasons, but this
> little gadget can easily take twice that. And since it moves the air around
> near the stove, it helps to keep the stove cooler and the room warmer at the
> same time.
>
> It works well, does a useful job, and is a great
> conversation piece. And it uses no energy except the heat from the wood
> stove.
>
> You can buy Peltier-junction thermoelectric generators
> with a motor and fan that are made for the same purpose (moving the hot air
> from the stove into the room), but ours lasted only about a year before the
> Peltier junction became intermittent, and the fan stopped working. The
> Stirling engine in the Heat Wave has had no such problems -- it is built
> like a tank.
>
> $175.90
>
> ------
>
> I wonder
> if we could use a stirling engine to produce electricity?
>
> On
> May 11th 2007, 18:52 EST, eecue wrote:
>

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