[Digestion] Biogas for milk cooling centres in Central Uganda

Paul Harris paul.harris at adelaide.edu.au
Thu Oct 10 05:45:51 CDT 2013


G'day All,

Larger absorption chillers are available, but I don't have performance 
figures. you can even get trigen, where you get electricity, cold and 
heat from the one unit.

Happy digesting,
HOOROO

On 9/10/2013 3:16 AM, David wrote:
>
>
> Stephen,
>
>
> On 10/8/2013 2:37 AM, Stephen Etheridge wrote:
>>
>> Why not use a gas fridge?
>>
>
> One's mileage may vary, but gas refrigerators (here in the US, such as 
> the old Servels) have very poor efficiency (3%?), and generally 
> speaking, where enough biogas is available, it makes better sense to 
> make electricity, use the excess heat for the digester, and use 
> electric-powered cooling.
>
> I don't know if larger cooling systems would experience significantly 
> better efficiency: indeed, I don't know that I have ever seen mention 
> of a larger system, which may provide something of an inferential 
> answer. (By the way, Einstein held a patent on a gas-powered 
> refrigeration system.)
>
>
>
> d.
> -- 
> David William House
> "The Complete Biogas Handbook" |www.completebiogas.com|
> /Vahid Biogas/, an alternative energy consultancy |www.vahidbiogas.com
>
> |
> |
> "Make no search for water.     But find thirst,
> And water from the very ground will burst."
> (Rumi, a Persian mystic poet, quoted in /Delight of Hearts/, p. 77)
>
> http://bahai.us/
> |
>
>
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