Re: 40 W thermoelectric power

["Scott Willing" <willing@mb.sympatico.ca>]

Paul,

Have a look at this site: http://www.hi-z.com/

Unfortunately these things are far from cheap, especially if as much 
as 40W was truly needed for a fan. (That sounds like an awful lot to 
me!) The last time I spoke to someone at this particular company they 
were hoping to lower the cost, but I would think it would still be 
prohibitive.

A thermal differential across the device is required to generate 
electrical power. One of the pages on the site shows a prototype 
assembly on a (North American heating) woodstove stovepipe, which 
uses some of the power generated to run fans blowing across/through a 
heatsink to improve the delta T. A clever design using the fan both 
for this purpose and as a combustion-aiding blower (bonus: preheated 
air) for a small cookstove might well be possible.

Again, I throw this out only as an example of a thermoelectric 
generator. It many not necessarily be an economically viable one.

-=s

On 19 Nov 2002 at 9:12, Paul S. Anderson wrote:

> Dear Anil,  (and others)
> 
> Your excellent comments are greatly appreciated!!!
> 
> Your message included:
> At 10:59 AM 11/19/02 +0530, nariphaltan wrote:
> >A possible solution would be to use the thermoelectric
> >generator with the stove to  power a small blower/fan for complete
> >combustion. A 40-50 W thermoelectric generator will be good enough
> >for this purpose and this much amount of energy generation is
> >possible with the existing stoves .
> 
> Please direct me (and others) to details on obtaining "decent /
> sufficient / 40 W or even less" thermoelectric power.  I will put that
> information to use immediately.
> 
> Sincerely,
> 
> Paul
> 
> 
> 
> Paul S. Anderson, Ph.D.,  Fulbright Prof. to Mozambique 8/99 - 7/00
> Rotary University Teacher Grantee to Mozambique >10 mo of 2001-2003
> Dept of Geography - Geology (Box 4400), Illinois State University
> Normal, IL  61790-4400   Voice:  309-438-7360;  FAX:  309-438-5310
> E-mail: psanders@ilstu.edu - Internet items: www.ilstu.edu/~psanders
> 
> 
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