[Terrapreta] heat energy: stoves vs. thermo biopiles

[Gerald Van Koeverden]

Jeff,

I like the idea of hyour thermo biopile.

Composting to produce energy definitely has the advantage of  
producing a much better fertilizer- the compost - than ash from  
burning.  But it seems that less total energy is available by  
composting, though if the biomass had to be dried before burning, the  
resultant net energies might be conquerable?

A company in Canada (Global earth Services/Products) sells a compost- 
maker with a built-in heat exchanger.  They claim to capture 80% of  
the energy.  I interpret this "80%" to be 80% of what would be the  
combustible energy.

http://www.globalearthproducts.com/heat_extraction.htm

Gerrit


On 23-Nov-07, at 12:34 AM, Jeff Davis wrote:

> Dear All,
>
> Right now all my time is going into the Thermo Biopile:
> http://www.puffergas.com/pile/pile.html
>