Cowherd-friendly communities

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Mark Middle Mountain <gourdmad (AT) ovnet (DOT) com>

Saturday, February 14, 2004 10:20 am

Re: Cowherd-friendly communities

 

> Gobar gas in the US.

>

> Couple of problems.

>

> For the process to work it has to be fairly warm. In the winter, a

> majorportion of the gas has to be used to keep the digester warm

> enough. An

> inefficiency.

 

I know that winter is a challenge, but I don't think it makes methane gas

production impossible. I think my Uncle Mike, not retired, was generating

electricity with methane gas from his hog farm in Michigan -- I'll check with

my Mom. I also think that University of Maine at Orono provides all the power

for its agricultural facilities with methane gas digested on site, produced

mostly using manure from its dairy cows.

 

Also, outside the agricultural mode, I seem to remember reading about 10 years

ago that Copenhagen was producing a large portion of its electricity by using a

methane digester to digest urban trash. Any Europeans on this conference who

can confirm or deny that?

 

ys

hkdd

 

>

> I have the impression that most gobar gas is burned directly. On

> the scale

> of US dairies, there is not enough use on the grounds for burning

> directly.What they do is burn the gas for electricity and use the

> waste heat to heat

> water. One problem that has held it back from wide spread

> acceptance is that

> the gas itself is dirty, and they don't have an engine for burning it

> properly yet.

>

>

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