[Stoves] Using a differential windlass as motive power for stove

[AJH]

On Sun, 10 Dec 2006 21:09:59 +0000, Steve Taylor wrote:

>AJH wrote:
>> You need to conduct lots of heat, it's the heat flux that generates
>> the Voltage. Keeping the delta T high across the junction pairs is
>> better achieved between ambient incoming air and hot combustion gases.
>> If you use hot water as the cold sink then you lose the difference
>> between the ambient temperature and your hot water.
>>   
>That assumes you have very good contact with the air on the cold side, 
>which you won't. It will be a lousy interface. With a wet cold side, you 
>will have a more efficient junction.

I'm not sure on that, I know you'll need to move 400 times the volume
of air past the cold junction than water but will the water be
intrinsically a better interface? Does it have a different boundary
effect? Will you be depending on thermal currents to move the heat in
the water?

I guess this is a simple high school physics experiment.

BTW whilst I favour experimenting with the thermo electric generator,
for more than one reason, I've nothing against a clockwork or falling
weight solution. 

AJH