I am not a big believer in tin can stoves that last a short while and must be discarded after a few months.<br>Poor people deserve gasifiers that last a long time.<br>
We should not offer poor people cooking units that we would not be proud to operate in our own kitchens.<br>I believe it is possible to make high-quality gasifiers that sell for less than $20.<br>For example, a reactor made in ceramic can withstand heat as high as 1,750 C,<br>
Yet it can be bought for about $4.50 US.<br><br>Also in the context of producing gas for purposes of cooking,<br>I favor true, high temperature gasification (>700C), not pyrolysis.<br>The principle idea is to produce a clean gas consisting, above all else, of H2 and CO.<br>
It takes a lot less secondary air to burn H2 and CO than to burn methane, propane or butane.<br>In a cooking situation, we should not be concerned with producing acetic acid, oils or even methane.<br>Biochar is important, but it is a by-product of the production of a clean cooking gas.<br>
<br>Here is a small gasifier of an interior diameter of 100 mm:<br><a href="http://dl.dropbox.com/u/22013094/100%20Ceramic%20Gasifier/001.pdf">http://dl.dropbox.com/u/22013094/100%20Ceramic%20Gasifier/001.pdf</a><br>The reactor here consists of a ceramic pipe normally used as a conduit for molten metal.<br>
This gasifier has a low-pressure, semi-premix burner.<br>It is not designed to support pots and pans.<br>Rather it fits into a stove top which does so.<br><br>Thanks.<br>Paul<br><br><br><div class="gmail_quote">On Sat, Nov 19, 2011 at 5:41 AM, Max Turunen <span dir="ltr"><<a href="mailto:maxturunen@gmail.com">maxturunen@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Very cheap gasifier for Yard Only -use: <a href="http://holon.se/folke/carbon/simplechar/simplechar.shtml" target="_blank">http://holon.se/folke/carbon/simplechar/simplechar.shtml</a><br>
Uses only old barrels and some rocks/bricks... but has limited lifespan.<br>
<br><br>MaxT<br><br> Why sell gasifier stoves... when one can display instructions for making various sorts of gasifier stoves, from local materials, by local people... chosen by local people ? (on non gasifying side there seems to be some really high precision clay cooking+heating stoves... which might be used for gasifying with old cans containing biomass in them, upside down, for pyrolysis gasifying reaction)<br>
<br><div class="gmail_quote"><div><div class="h5">On Fri, Nov 18, 2011 at 11:38 PM, Jan Bianchi <span dir="ltr"><<a href="mailto:janbianchi@comcast.net" target="_blank">janbianchi@comcast.net</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
<u></u>
<div link="blue" vlink="purple" lang="EN-US">
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<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">Do any of you know of a list that compares different clean
burning cook stoves not only by fuel type, efficiency and emissions, but also
by price and the presence or lack thereof of subsidy? I don’t see the
latter information on most websites that describe different stoves. <u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">If there isn’t such a list, maybe we could work to put
together one by each of you sending a link that describes a stove and stating
the price they are currently being sold for in local communities, together with
whether there is a subsidy and if so the amount? I’d be happy to
work with <u></u>Erin<u></u> to put together such a list
from your answers.<u></u><u></u></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial"><u></u> <u></u></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;font-family:Arial">For people living on $2 a day or less, what for example
would be considered a low cost stove? Middling? High?<u></u><u></u></span></font></p>
</div>
</div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Paul A. Olivier PhD<br>27C Pham Hong Thai Street<br>Dalat<br>Vietnam<br><br>Louisiana telephone: 1-337-447-4124 (rings Vietnam)<br>Mobile: 090-694-1573 (in Vietnam)<br>
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