<div dir="ltr">Hi Samantha, <div><br></div><div>We have hundreds of small and medium dairies displacing energy needs with Sistema Biobolsa (<a href="http://sistemabiobolsa.com">sistemabiobolsa.com</a>) in Mexico and other points in LAC, and now with some pilots in Africa. While we have used larger diesel-based biogas motors, we more recently have been converting small gasoline engines to biogas, and they in effect work as a duel fuel, allowing you to use gasoline if there is a limited supply of biogas. While we install motors in 20kW range, using smaller gasoline motors puts the technology within an extremely accessible price range, and makes the investment modular and scalable. </div>
<div><br></div><div>For example, you could add our 40 or 60 m3 digester with a 12 kW to run one of the refrigeration units, and then later add the second system. In that way farmers are able to make the investment over time. The following videos are in spanish, but give a good idea: <a href="http://www.youtube.com/watch?v=ZlE2P-V7SyQ">http://www.youtube.com/watch?v=ZlE2P-V7SyQ</a> , <a href="http://www.youtube.com/watch?v=G8ljAgrUIK4">http://www.youtube.com/watch?v=G8ljAgrUIK4</a> </div>
<div><br></div><div>Stephen, regarding gas refrigerators, we have adapted a few from LPG, but have not been able to get a configuration or efficiency that can compete with the electrical milker chillers. Do you have a suggested model? Ultimately, I agree that thermal cycles are a really efficient way for dairies to use biogas.</div>
<div><br></div><div>One challenge with motors in dairies in that the equipment (vacuum pumps and compression pumps) have a very different peak demand and running demand. This requires farmers to oversize electrical capacity to deal with the peaks, when they could really use equipment nearly 3X smaller. I posed this question to the group before, and still have not found a cost effective solution. </div>
<div><br></div><div>Cheers</div><div><br>A </div><div><br></div><div> </div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Oct 8, 2013 at 6:54 AM, Jean-luc Sallustro <span dir="ltr"><<a href="mailto:jean-luc.sallustro@eventure-international.com" target="_blank">jean-luc.sallustro@eventure-international.com</a>></span> wrote:<br>
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<div>Hi Samantha,<br>
<br>
We can propose our 5t/j to 40 t/J plug flow AD <br>
Regrads<br>
<pre cols="72">Jean-Luc Sallustro Managing Partner
e.venture Group
Bénarès, Rivière des Anguilles
Ile Maurice
Tel (230) 54 44 40 00
LD (230) 54 44 40 01 Mob (230) 57 29 16 26 Fax (230) 626 23 54</pre>
Le 08/10/2013 15:34, Samantha Carter a écrit :<br>
</div>
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<pre style="font-size:10pt;white-space:pre-wrap"><font face="arial">Vianney</font><font face="Arial, Helvetica, sans-serif">, thank you I will contact both of those companies.</font></pre>
<pre><font face="Arial, Helvetica, sans-serif"><font><span style="white-space:pre-wrap">Stephen, the </span></font><span style="white-space:pre-wrap">refrigeration</span><font><span style="white-space:pre-wrap"> units are already installed and running well - we are trying to replace as little of the original infrastructure as possible in order to keep capital costs of the project down.</span></font></font></pre>
<pre>Samantha</pre>
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</div><div class="im"><pre>_______________________________________________
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for more information about digestion, see
Beginner's Guide to Biogas
<a href="http://www.adelaide.edu.au/biogas/" target="_blank">http://www.adelaide.edu.au/biogas/</a>
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for more information about digestion, see<br>
Beginner's Guide to Biogas<br>
<a href="http://www.adelaide.edu.au/biogas/" target="_blank">http://www.adelaide.edu.au/biogas/</a><br>
and the Biogas Wiki <a href="http://biogas.wikispaces.com/" target="_blank">http://biogas.wikispaces.com/</a><br>
<br>
<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>Alexander Eaton<br>Sistema Biobolsa<br>IRRI-Mexico<br>RedBioLAC<br><br>Mex cel: (55) 11522786<br>US cel: 970 275 4505<br><br><a href="mailto:alex@irrimexico.org" target="_blank">alex@irrimexico.org</a><br>
<a href="mailto:alex@sistemabiobolsa.com" target="_blank">alex@sistemabiobolsa.com</a><br><br><a href="http://sistemabiobolsa.com" target="_blank">sistemabiobolsa.com</a><br><a href="http://www.irrimexico.org" target="_blank">www.irrimexico.org</a><br>
<a href="http://www.redbiolac.org" target="_blank">www.redbiolac.org</a><br>
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