[Digestion] Biogas for milk cooling centres in Central Uganda

[Art Krenzel]

Tom,
 
Sorry for the delay of information.
 
The company website is located at:   http://www.energy-concepts.com/
 
Under FIELD INSTALLATIONS, you can find:  Waste Heat Powered Icemaker in Kotzebue, Alaska

Art 

 

From: tmiles at trmiles.com
To: digestion at lists.bioenergylists.org; david at h4c.org
Date: Tue, 8 Oct 2013 12:50:20 -0700
Subject: Re: [Digestion] Biogas for milk cooling centres in Central Uganda

Art, That link seems to require a Microsoft account. Is there an alternative url? Thanks Tom  From: Digestion [mailto:digestion-bounces at lists.bioenergylists.org] On Behalf Of Art Krenzel
Sent: Tuesday, October 08, 2013 12:28 PM
To: david at h4c.org; For Discussion of Anaerobic Digestion
Subject: Re: [Digestion] Biogas for milk cooling centres in Central Uganda Stephen:
 
Take a look at this company who produces a modern commercial sized thermal refrigerator system.  This unit may be too large for your application but it is easier to downsize a design than upsize.
 
https://bay169.mail.live.com/default.aspx?n=77550718&fid=1&mid=069dc4c6-3049-11e3-a4d7-00237de46188&fv=1#n=14993950&fid=2&mid=dec4048c-3030-11e3-b579-00237de3f534&fv=1
 
The Sevel sized refrigerators are quite small for most commercial milk applications.

Art Krenzel, P.E.
PHOENIX TECHNOLOGIES
10505 NE 285th Street
Battle Ground, WA 98604



 Date: Tue, 8 Oct 2013 09:46:00 -0700
From: david at h4c.org
To: digestion at lists.bioenergylists.org
Subject: Re: [Digestion] Biogas for milk cooling centres in Central Uganda



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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