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Slightly off topic, not Solar but Thermal

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Posted by Rick... (The other Rick) on November 10, 2008, 12:25 pm

The Russians seem to have developed Thermal generators in the past

Now I have no desire to have such a device anywhere near me.

These people seen to have taken the idea a bit further

and a commercial device is available
http://www.hi-z.com/hz20.php  but is a tad expensive.

Anybody know of a source of plans for home made a thermopile or even if it's

Rick... (The other Rick)

Science and sound engineering will always prevail in the end
"for nature cannot be fooled" [Feynman]

Posted by Mauried on November 11, 2008, 4:50 am
On 10 Nov 2008 06:25:02 -0600, "Rick... (The other Rick)"


This is not new.
All Peltier Devices work in reverse, ie if you provide a temperature
differential across the device, then it will generate electricity.

No one seems to be however making such devices specifically for this
market, mainly for the reverse, ie thermoelectric coolers.

The modules arnt all that expensive.
I made a small fridge using 2 X 60 watt modules.
They cost $8 each.

The problem when using them to make electricity is how to get the heat
away from the cold side fast enuf.
Simple air cooling with a big heatsink isnt normally good enuf.
You need something like water cooling and a heat pipe.

Posted by A Mittal on November 11, 2008, 10:51 am

On Nov 11, 9:50am, maur...@tpg.com.au (Mauried) wrote:

Are you aware of any kind of work/ research going on
in this area ie reverse refrigerators.

Posted by Mauried on November 11, 2008, 1:02 pm

The problem is the design of the modules themselves.
They are very small.
The ones I used were only 4CM x 4CM which is too small to get
a decent sized heatsink onto the hot side.
You need a better design with a larger contact area on the hot side.

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