<div dir="ltr">Crispin,<div><br></div><div>Any solid fuel - regardless of how finely ground will cause undue wear to all moving parts of an IC engine - not to mention lubrication oil contamination.</div><div><br></div><div>Simplest route is to convert biomass to a gaseous fuel and run IC engine with a spark ignition conversion.</div><div><br></div><div>1.5kg biomass produces 1kWhe of electricity using gasification and spark ignition route.</div><div><br></div><div>That gives biomass to electricity a 20% conversion efficiency - plus a load of useful waste heat</div><div><br></div><div>No diesel required.</div><div><br></div><div><br></div><div><br></div><div>Ken</div><div><br></div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 18 April 2015 at 14:35, Crispin Pemberton-Pigott <span dir="ltr"><<a href="mailto:crispinpigott@outlook.com" target="_blank">crispinpigott@outlook.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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I recall that the dream of such a multifuel engine was achieved by ITDG, now Practical Action. </div>
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They had an engine that would run at 500 RPM on coal dust. It could also run on various oils. If the oil has long chain molecules they should be shortened (for example by transesterification) to reduce the minimum injection pressure requirement by turning it
into 'biodiesel' or bioparaffin. </div>
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Here's an island technology: how about grinding old palm leaves into powder and using that in a low speed diesel engine? The engine could be used to grind more fuel and have energy to spare for other tasks like pumping water and lighting and making briquetted
stove fuel. </div>
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Studies in the '70's showed that about 15% of a farm needs to be planted in sunflower to power the whole farm. In South Africa one can buy a container sized setup that will produce three litres per second of biodiesel from sunflower oil. </div>
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Regards </div><span class="HOEnZb"><font color="#888888">
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Crispin </div></font></span><div><div class="h5">
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<div>It seems a bit ironic but it is like the world has forgotten the Rudolph Diesel originally developed his engine to run on farm</div>
<div>produced plant based oils to promote self sufficiency. Wikipedia-----<font face="Times New Roman">Diesel was interested in using
</font><a title="Coal dust"><font face="Times New Roman">coal dust</font></a><font face="Times New Roman">
<sup><a><span>[</span>6<span>]</span></a></sup> or
</font><a title="Vegetable oil"><font face="Times New Roman">vegetable oil</font></a><font face="Times New Roman"> as fuel, and in fact, his engine was run on peanut oil.<sup><a><span>[</span>7<span>]</span></a></sup>
Although these fuels were not immediately popular, </font></div>
<div><font face="Times New Roman"></font> </div>
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<div><b>From:</b> <a title="nariphaltan@gmail.com" href="mailto:nariphaltan@gmail.com" target="_blank">
nari phaltan</a> </div>
<div><b>Sent:</b> Saturday, April 18, 2015 1:56 PM</div>
<div><b>To:</b> <a title="stoves@lists.bioenergylists.org" href="mailto:stoves@lists.bioenergylists.org" target="_blank">
Discussion of biomass cooking stoves</a> </div>
<div><b>Subject:</b> [Stoves] Diesel as an excellent fuel for rural households</div>
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Dear stovers,</div>
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This article proposes fossil fuel based clean combustion technology for rural poor.
<a href="http://www.nariphaltan.org/diesel.pdf" target="_blank">www.nariphaltan.org/diesel.pdf</a> </div>
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Cheers.</div>
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<div style="font-size:large;font-family:verdana,sans-serif;color:#351c75">
Anil</div>
<div> </div>
-- <br>
<div>Nimbkar Agricultural Research Institute (NARI)<br>
Tambmal, Phaltan-Lonand Road<br>
P.O.Box 44<br>
Phaltan-415523, Maharashtra, India<br>
Ph:91-2166-222396/220945/222842<br>
<a href="mailto:e-mail%3Anariphaltan@gmail.com" target="_blank">mailto:e-mail%3Anariphaltan@gmail.com</a><br>
<a href="mailto:nariphaltan@nariphaltan.org" target="_blank">nariphaltan@nariphaltan.org</a><br>
<br>
<a href="http://www.nariphaltan.org" target="_blank">http://www.nariphaltan.org</a><br>
</div>
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