<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi Stovers,<div><br></div><div>Does anyone have any information on radiation in improved cookstoves. I am trying to model a dung burning cookstove. As the fuel being pyrolized is dung hence radiation would play a big factor in heat transfer due to the soot content in the gas. CFD simulation requires the values of emissivity of air and absorbivity coefficient for the volume conditions (i.e air in our case). Any previous work done regarding this would be highly appreciated.</div><div><br></div><div>Cheers</div><div>Sarbagya</div><div>Sydney Australia<br><div><div>On 30/04/2012, at 6:45 AM, Paul Anderson wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
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Dear Graham and Stovers,<br>
<br>
If you are interested in driving small fans or blowers using thermal
power, look at the video link sent by Graham Knight of the UK. It
is not his video, but he seeks similar results. Read the posted
comments under the video, and see another video linked from there.<br>
<br>
If interested in developing such technology for use in developing
countries, please reply to Graham and to me. And we will want to be
in contact with the person who made the videos.<br>
<br>
<pre class="moz-signature" cols="72">Paul S. Anderson, PhD aka "Dr TLUD"
Email: <a class="moz-txt-link-abbreviated" href="mailto:psanders@ilstu.edu">psanders@ilstu.edu</a> Skype: paultlud Phone: +1-309-452-7072
Website: <a class="moz-txt-link-abbreviated" href="http://www.drtlud.com/">www.drtlud.com</a></pre>
<br>
On 4/29/2012 9:51 AM, GRAHAM KNIGHT wrote:
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<div><span>My design uses hot & cold <var id="yui-ie-cursor"></var>water and therefore has a
maximum of 100C which is okay for cheaper TECs. Water,
even more importantly, allows greater heat transfer
and therefore far greater power output.</span></div>
<div><span></span> </div>
<div><span>The 6 fan motors seen in the water-powered
video <font face="Arial, sans-serif"><font style="FONT-SIZE: 9pt;" color="#810081" size="2"><b><a moz-do-not-send="true" href="http://www.youtube.com/watch?v=mHqqHZsU4k0&feature=related">http://www.youtube.com/watch?v=mHqqHZsU4k0&feature=related</a></b></font></font></span></div>
<div><span><font color="#000000">I have now discovered use
about 1/10 watt each.</font></span></div>
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<div><span><font color="#000000">Graham</font></span></div>
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