[Stoves] Compact biogas plant

[Paul S. Anderson]

Saibhaskar and A.D. and all,

Nice blog page on the small biodigester.  Making things SMALLER is not always
easy, but can be very important.

How much cooking time does 2 cubic meters of methane gas represent?  Meaning,
for a household, what is the appropriate size of a biodigester?  Also, 
unless a
house is totally remote (not common in India), several houses could 
take biogas
from a unit the size of A.D.'s.

Size will impact the fluxuations of temperature (which are bad for the
microbes), so again what is the best small size for the low cost devices?

A.D.'s advocating of using vegetative wastes that are better than dung 
(already
bio-digested by the cow) is (or should be) a major shift.

Paul
-- 
Paul S. Anderson, Ph.D., Geography professor - Emeritus
Telephone:  USA-309-452-7072 (residence and office)
Internet site:  www.ilstu.edu/~psanders
For my gasifier stoves info, go to:
http://bioenergylists.org/contributors#Paul_Anderson


Quoting Saibhaskar Nakka <saibhaskarnakka at gmail.com>:

> Dear All,
>
> We all well aware about the achievements and success of Dr. A.D. Karve in
> designing a compact biogas plant for the communities. There is need to do
> lots of research in the biogas from wet (nitrogen rich) biomass. I would
> like to share my experience of designing a mini-biogas digester 'Srushti'
> Prototype http://e-biogas.blogspot.com/. It was designed by me last year.
> This requires 2 kilograms of Kitchen waste and other green matter as feed,
> and releases about 2 cubic meters of biogas. Initially to activate dung of
> cattle should be added for introducing methane generating bacteria.


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