permaculture

[John Fritz <johnfritz77@yahoo.com>]

>From the pictures in the book, Another Kind of Garden, it is indeed a BIG 
>digester.  The 50 tons that Pain spoke about does not appear to be an 
>exageration.  At the center of this neatly stacked pile was an old water 
>heater tank.  Feeding into and out of this tank were coils of tubing that 
>were wrapped around, through the pile, in a circular manner, extracting the 
>heat of the digestion.  The heated water was then ciruited into the house, 
>under the floor to heat the house.  The book is out of print, was never 
>widely circulated.  But I do have some of the info retained for my own use.  
>If anyone has any specific questions I will do my best to answer them based 
>on the info that I retained.
   
  John Fritz.

Richard Archer <permaculture@juggernaut.com.au> wrote:
  At 9:30 AM -0800 13/1/06, John Fritz wrote:

>The only obstacle that I can think of (and it is a doosy) is the need
>for 50 tons of such "forest thicket compost" for each generating
>application, per Pain's use. Still I would like to determine if the
>method could be modified for smaller applications.

This is the first time I have heard of Jean Pain's system, but a
bit of Googling suggests it's just a big biogas digester.

These systems scale down to the size of a beaker, but if you're
going to use it for cooking, heating and power generation you
will need a pretty big unit!

Here's a good reference:
http://journeytoforever.org/biofuel_library/MethaneDigesters/MDToC.html

And now you know some more terminology, Google will return a lot
more references.

...Richard.
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