<div dir="ltr">Merry Christmas to you too Paul! <div><br></div><div>Perhaps drop a note to Mr. Taps from Wonder Stoves in Sierra Leone - he has invented this (among many others) excellent institutional stove seen here <a href="https://www.facebook.com/wonderstoves.sl/videos/889607707869718/">https://www.facebook.com/wonderstoves.sl/videos/889607707869718/</a> that vastly improves conditions in this very hectic and hot looking kitchen.</div><div><br></div><div>All the best, </div><div><br></div><div>Teddy </div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><font face="arial narrow, sans-serif">Teddy Kinyanjui</font></div><div><font face="arial narrow, sans-serif">Sustainability Director</font></div><div><font face="arial narrow, sans-serif"><br></font></div><div><img src="https://lh3.googleusercontent.com/-3YUMG1TTODQ/Wh6o8gWfRmI/AAAAAAAAAyw/1bp5qqpvmwQwg5JXqL7hz-OLGSx5nSEXgCK8BGAs/s512/TK%2BEmail%2BLogo.jpg" width="200" height="100"><font face="arial narrow, sans-serif"><br></font><font face="arial narrow, sans-serif"><br></font></div><div><font face="arial narrow, sans-serif"> <a href="https://www.facebook.com/CookswellJikos" target="_blank"><img src="https://images2.imgbox.com/97/28/BgG0H6ZN_o.png"></a> <a href="https://www.instagram.com/cookswelljikos" target="_blank"><img src="https://images2.imgbox.com/54/7e/owicmXIG_o.png"></a> <a href="https://twitter.com/cookswelljikos?lang=en" target="_blank"><img src="https://images2.imgbox.com/64/b1/oh4tfzkH_o.png"></a><br></font></div><div><b><br></b></div><div><div style="font-size:small"><br></div></div><div><br></div><div><br></div><div><br><br><br></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Sat, Dec 23, 2017 at 10:21 PM, Paul Anderson <span dir="ltr"><<a href="mailto:psanders@ilstu.edu" target="_blank">psanders@ilstu.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Stovers, especially Fred, Damon, Adam, Dale, Sam and Dean, and Jim Jetter.<br>
<br>
First, Merry Christmas to all of you, everywhere!!<br>
<br>
Now my stove topic: What is known about using a skirt or double skirt with institutional size stoves. The heat source is not the issue (Rocket, TLUD, LPG, other). The issue is heat transfer and reduction of fuel used, and not about emissions.<br>
<br>
Dale has done work on skirts on regular-size pots, with (I believe) results showing some but not so much impact as we would like.<br>
<br>
The InStove folks (Fred, Damon and Adam) are (I believe) the front runners on putting skirts onto large pots. And they do it with a DOUBLE skirt (heat up one side of the skirt next to the pot, then downward on the other side of that skirt, withing an outer barrier (cylinder) that even has some insulation.<br>
<br>
Certainly Rocket and probably other institutional stoves with "imbedded pots" or "sunken pots" are made and used. I believe that they have been measured by Aprovecho and EPA and testing centers, but maybe not with comparative data without the skirts / brick surrounds.<br>
<br>
So, the questions are: are there results (we hope for numeric, carefully collected data) that compares with some "baseline" or "un-skirted" pot, about<br>
<br>
1. the impact of a single skirt.<br>
<br>
2. Impact of the double skirt<br>
<br>
3. with and without insulation.<br>
<br>
I hope some data already exist and can be shared.<br>
<br>
Objective: is the extra expense of the skiirt (whatever configuration, even the brick enclosure structure) suficiently offset by the improved heat capture?<br>
<br>
Thanks in advance!! And Season's Greetings to all!!!!!!!!!!!!!!!!<br>
<br>
Paul<br>
<br>
-- <br>
Doc / Dr TLUD / Prof. Paul S. Anderson, PhD<br>
Email: <a href="mailto:psanders@ilstu.edu" target="_blank">psanders@ilstu.edu</a><br>
Skype: paultlud Phone: +1-309-452-7072<br>
Website: <a href="http://www.drtlud.com" rel="noreferrer" target="_blank">www.drtlud.com</a><br>
<br>
<br>
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</blockquote></div><br></div>