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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Bob,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>That’s a pretty interesting idea. A couple of considerations based on my experience adding a turbocharger to my v-8 1994 Mustang. The turbine wheel and compressor are pretty small in diameter (compressor impeller 3” or so in diameter) on an automotive-type turbo. I’m using a Holset HX-35W off late 1990’s diesel truck engine. My 331 CID engine puts out well over 400 Hp at 12 psi boost. At that data point this turbo is flowing around 1200 Kg/hr, serious airflow. You will go through a LOT of solid fuel in a VERY short period of time. The turbine/impeller are spinning around 100,000 RPM. The point being the impeller is very small place to put one or more magnets and the RPM will demand very precise balancing. Even just trying to run at a couple psi boost you will be turning in excess of 55,000 RPM.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Even finding the very smallest of turbos out there you might get something that only makes 100 Hp on an ICE but your magnet placement/balance problem will more difficult, the smaller turbos REALLY spin!<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I’m not trying to discourage the project. You will be amazed at how small and light those parts are when you open up a turbo.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Good luck with it! Please keep us posted as the project progresses.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dan Nicoson<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Gasification [mailto:gasification-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>Bob Stuart<br><b>Sent:</b> Monday, January 02, 2017 5:57 PM<br><b>To:</b> Discussion of biomass pyrolysis and gasification<br><b>Subject:</b> Re: [Gasification] Where is Everyone?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p><span style='font-family:"DejaVu Serif","serif"'>Thanks, Doug.</span><o:p></o:p></p><p><span style='font-family:"DejaVu Serif","serif"'>I'd been worried about coking, so you have saved me a test setback. Will a cyclonic separator upstream help? I've never dealt with coking, so I don't even understand its vulnerabilities. Would a good wire brushing with each new load of fuel do the trick? That could be automated pretty easily. </span><o:p></o:p></p><p><span style='font-family:"DejaVu Serif","serif"'>All the ICEs have to deal with the power for a compression stroke. I'll do the math on intake vs exhaust volume before building, of course, to make sure the turbo efficiency is a minor fraction of the equations. With a built-in air pump, a condensing flue is easy to arrange, and it recaptures any heat used to burn wet wood. Would the steam help clean coke? It eats carbon in an ICE.</span><o:p></o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>From what I know about generators, a rapidly spinning magnet is quite effective. Those little DC-DC voltage converters are surprisingly small and efficient, running at very high frequencies.<br><br>Bob<o:p></o:p></p><div><p class=MsoNormal>On 17-01-02 05:15 PM, Doug wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p>Hi Bob,<o:p></o:p></p><p>I have seen direct coupled car turbo's hooked to a pressurized gasifier/stove, and in that situation, was fed hot gas straight out of the gasifier. It's not that it doesn't work, just that it's almost impossible to prevent the impeller from coking up and blocking. Not sure how you would actually hook a generating device on this, but opportunity to develop that hot gas to power directly would be a game changer. You also have to consider the power demand required for air input compression.<o:p></o:p></p><p>Doug Williams.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On 03/01/17 11:34, Bob Stuart wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p><span style='font-family:"DejaVu Serif","serif"'>Best Possible New Year, everyone.</span><o:p></o:p></p><p><span style='font-family:"DejaVu Serif","serif"'>I arrived here after a period with wood heat but no electricity at all, when I got interested in steam. Thanks to all for a great education on the options. I am hoping to find a new situation with younger people around where I can use a gasifier. What I'd like to try would be expensive if I wanted maximum efficiency, but where the need for heat is high and power modest, I think a great simplification might work. </span><o:p></o:p></p><p><span style='font-family:"DejaVu Serif","serif"'>With a turbocharger from a car, I think it would be easy to just pressurize an airtight stove to produce a solid-fuel gas turbine. I presume that sticking a magnet on the cold end would let a coil pull the power off. Raising the pressure would get more efficiency, but drive up the bill for exotic materials.</span><o:p></o:p></p><p><span style='font-family:"DejaVu Serif","serif"'>Best,</span><o:p></o:p></p><p><span style='font-family:"DejaVu Serif","serif"'>Bob Stuart,</span><o:p></o:p></p><p><span style='font-family:"DejaVu Serif","serif"'>Spiritwood, SK</span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></blockquote><p class=MsoNormal><br><br><br><br><o:p></o:p></p><pre>_______________________________________________<o:p></o:p></pre><pre>Gasification mailing list<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>to Send a Message to the list, use the email address<o:p></o:p></pre><pre><a href="mailto:Gasification@bioenergylists.org">Gasification@bioenergylists.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>to UNSUBSCRIBE or Change your List Settings use the web page<o:p></o:p></pre><pre><a href="http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org">http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>for more Gasifiers, News and Information see our web site:<o:p></o:p></pre><pre><a href="http://gasifiers.bioenergylists.org/">http://gasifiers.bioenergylists.org/</a><o:p></o:p></pre></blockquote><p class=MsoNormal><o:p> </o:p></p></div></body></html>