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<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr">
<p>Hi Xavier, </p>
<p><br>
</p>
<p>Thank you for your message. </p>
<p><br>
</p>
<p>My initial comment surrounds WBT as it can be very misleading for organization who are not stove experts and base their program decisions based on this protocol. WBT is very limited in terms of usability and some of the methodology is not even technically
correct especially if it is being conduced at a lab, not at the field. In addition, working with regional testing centers have been extremely frustrating. </p>
<p><br>
</p>
<p><span style="font-size: 12pt;">I have not had a chance to look at MIT study but it would be great to discuss with various players on how we can collectively work together in preparing the next research studies. </span><br>
</p>
<p><span style="font-size: 12pt;"><br>
</span></p>
<p><span style="font-size: 12pt;">Most important issue is that we have impact for the users and in order to do so, we have to be objective. </span></p>
<p><br>
</p>
<p>I am open to advancing the discussion with everyone. </p>
<p><br>
</p>
<p>Thank you,</p>
<p><br>
</p>
<p>Vahid </p>
<p><br>
</p>
<p><br>
</p>
<div id="Signature">
<div id="divtagdefaultwrapper" dir="ltr" style="font-size: 12pt; color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif, Helvetica, EmojiFont, 'Apple Color Emoji', 'Segoe UI Emoji', NotoColorEmoji, 'Segoe UI Symbol', 'Android Emoji', EmojiSymbols;">
<p>Vahid Jahangiri </p>
<p>Deputy Director </p>
<p><a href="http://www.lifelinefund.org" class="OWAAutoLink" id="LPNoLP">www.lifelinefund.org</a> </p>
<p>+12029975389 </p>
</div>
</div>
</div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Xavier Brandao <xav.brandao@gmail.com><br>
<b>Sent:</b> Wednesday, August 16, 2017 7:14:04 PM<br>
<b>To:</b> 'Discussion of biomass cooking stoves'<br>
<b>Cc:</b> psanders@ilstu.edu; ndesai@alum.mit.edu; dsweeney@mit.edu; npenumetcha@cleancookstoves.org; rchiang@cleancookstoves.org; lcordes@cleancookstoves.org<br>
<b>Subject:</b> RE: [Stoves] New Handbook for Biomass Cookstove Research, Design, and Development</font>
<div> </div>
</div>
<div>
<div class="WordSection1">
<p class="MsoNormalCxSpFirst"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Dear all,</span><o:p></o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">I think the initiative and effort to write about the state of stove R&D and research is great. We need to analyse, and provide simple and clear
design advices to stove practitioners.</span><o:p></o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">This handbook is supposed to show the current cookstove R&D state-of-the-art. But still, I think this is not the right picture.<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Or at least it is only a small part of the right picture.</span><o:p></o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Many important researcher works and names are left out of this paper.<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">I can not imagine a paper claiming to describe recent R&D wook on cookstoves not mentioning Crispin Pemberton-Pigott nor his work even once. Not
even one single time. He is simply absent of the document.<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Dean Still, in the meantime, is mentioned 18 times.<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">No one on this list will deny what Crispin did and is doing for stove research, he has to be somewhere in the document.<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><o:p> </o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">I cannot understand that in August 2017 the MIT and GACC still publish, again, a document that, again, vouches for the WBT. p 7 in the « 1.3 PERFORMANCE
TESTING » chapter, only the WBT is mentioned! How is that possible? What message are we conveying to new designers? What about the past conversations about the WBT since the beginning of the year? What about Ranyee admitting (like other</span>s<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">
do) that we have « moved beyond » the WBT?<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">How can people not think again that the GACC has actively worked to publicize and promote the WBT, at the detriment of all the other protocols?<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><o:p> </o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">As Samer mentioned in his message to Neeraja Penumetcha, this paper mentions almost uniquely U.S. stove researchers (p 4-5 of the document), at
the detriment of all the other researchers. How can it remain silent about the astounding work from for example Europe, Central Asia, China, Indonesia? How can it not even mention the state-of-the-art topics that were discussed at length on this List?</span><o:p></o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Looking at the « TABLE 3: RECENT BIOMASS COOKSTOVE R&D PROJECTS THAT WERE SURVEYED FOR THIS REPORT » one can only note that all the organizations
are from U.S.A. All of them. How can that not be considered like ethnocentricity?<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Is the state-of-the-art in the cookstove sector the recycling of old and largely criticized work of the Aprovecho dating from 2007-2009?<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><o:p> </o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">ARC new products are mentioned many times (p 13, 18, 40, 41, 42).
<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><o:p> </o:p></p>
<p class="MsoNormalCxSpLast"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Other stove models, technologies, projects, research could, should have been mentioned, at least once, for example:<o:p></o:p></span></p>
<p class="MsoListParagraphCxSpFirst" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Servals TLUDs - <b>India<o:p></o:p></b></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Paul Olivier stoves - <b>Vietnam</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>China-made improved cookstoves - <b>China</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Vesto and other New Dawn Engineering stoves - <b>Swaziland</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Rocket Works stoves, Adrian Padt - <b>South</b> <b>
Africa</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Silverfire new line of stoves - <b>U.S., China</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Rebecca Vermeer, Eco-Kalan stoves - <b>Philippines</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Roger Samson, Mayon Turbo stove - <b>South</b> <b>
Africa</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Practical Action, CHF stoves - <b>Sudan</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>CSI Indonesia Pilot stoves - <b>Indonesia</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Prime and Dr Nurhuda stoves - <b>Indonesia</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Ecochina Stove - <b>El Salvador<o:p></o:p></b></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>Anglo Supra Nova stove - <b>Indonesia</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>University of Adelaïde papers - <b>Australia</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>CSI project papers - <b>Indonesia</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpMiddle" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>DUE conference papers - <b>South</b> <b>Africa</b><o:p></o:p></p>
<p class="MsoListParagraphCxSpLast" style="margin-bottom:0cm;margin-bottom:.0001pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="font-family:Symbol"><span style="mso-list:Ignore">·<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]>GERES project papers - <b>South-East Asia<o:p></o:p></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">This list is not exhaustive.<o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Crispin says that his Vesto and Roger Samson’s stove both out-perform a Rocket stove quite handily, with the simmering ‘efficiency’ of a Vesto
being above 65%.</span><o:p></o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">I think unfortunately, this D-Lab handbook is misrepresenting to outsiders the actual current state of cookstove research.</span><o:p></o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:10.0pt"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">I put Dan Sweeney in copy of this message. Dan, since you are a member of the Stove List as well, I put you in copy: your contributions
would be most welcome.</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext"><o:p></o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Others on the list, your opinions would also help in this discussion.</span><o:p></o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Best</span> regards<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">,</span><o:p></o:p></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext"><o:p> </o:p></span></p>
<p class="MsoNormalCxSpMiddle"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">Xavier<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>
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<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">De :</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> Stoves [mailto:stoves-bounces@lists.bioenergylists.org]
<b>De la part de</b> Paul Anderson<br>
<b>Envoyé :</b> mardi 1 août 2017 16:19<br>
<b>À :</b> Discussion of biomass cooking stoves; Doc Anderson<br>
<b>Objet :</b> Re: [Stoves] New Handbook for Biomass Cookstove Research, Design, and Development<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Stovers, (and placed on the ePosts at the <a href="http://www.drtlud.com">
www.drtlud.com</a> website for easy access and wider audiences)<br>
<br>
This new publication is definitely worth some of your time to download (free), save, and look at (at least scroll through and "read at your degree of interest"). Good diagrams, and very nice summaries of the issues of stove R&D and design.
<br>
<br>
Download the full handbook here: <a href="http://cleancookstoves.org/resources/517.html">
http://cleancookstoves.org/resources/517.html</a> <br>
<br>
Of course I focused on the TLUD issues. <br>
1. No glaring errors were noted. (Opps, one is noted when I wrote the content below).
<br>
<br>
2. There were some understatements that have background stories that would be too detailed for this publication.<br>
Example is on Page# 22 (22 of 36 digital sheets).<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal">FUEL BATCH SIZE AND RELOADING IN GASIFIER STOVES<br>
Users of batch-fueled cookstoves like TLUDs often wish to continue cooking after the initial fuel
<br>
batch has burned out. Adding new fuel to the stove causes it to switch from operating in a TLUD
<br>
mode to a conventional updraft gasifier mode (Figure 15).<o:p></o:p></p>
<p class="MsoNormal">That part is true. But then it goes on about Tryner's work at CSU with observed difficulties (correct) but does not say that that research put in a substantial amount of new fuel all at one time (a major cause of the difficulties).
<br>
<br>
The continuing paragraph refers to Aprovecho results with a TLUD-FA stove (incorrectly reference to the Reed-Larson 1996 article about TLUD-ND stoves) and states that performace is not compromised when:
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto"><span style="font-size:10.5pt">the user can meter in additional fuel through the door in a low-power operating mode.
</span><o:p></o:p></p>
<p class="MsoNormal">Sorry, but in my opinion, there are serious compromises (some increase in emissions including when each new amount of fuel hits the top of the charcoal bed and shortening the stove life because of high temperatures from air directly blowing
on hot charcoal in the bottom). Therefore, this refueling is NOT good advice. So, I would say that this is a glaring error that unfortunately will be repeated over and over, with citation to this publication. But that is only my opinion.<br>
<br>
3. A few missed opportunities to make more complete statements:<br>
Example: Page # 32 (34 of 36 digital sheets):<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal">To achieve more turbulent flow without a fan, natural-draft cookstove designers have added features
<br>
to the interior geometry that suddenly change the flow path and create turbulence in local
<br>
mixing zones. <o:p></o:p></p>
<p class="MsoNormal">Very true. Then comes the example with a side-feed stick-burner stove (rocket type, but not showing the rocket fuel shelf; in fact, I do not recall seeing a full discussion of the true Rocket innovation by Winearski to have the air
entering under the burning tips of the sticks).<br>
<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal">For example, the Envirofit G-3300 has a choke ring, like a large metal washer, in the riser. The
<br>
choke ring disturbs the flow of air and combustion gases and generates a local mixing zone
<br>
(Figure 20) (DeFoort et al., 2010.<o:p></o:p></p>
<p class="MsoNormal">Then there is reference to Natural Draft TLUDs, but only the stationary vane that were pioneered by Kirk Harris (not mentioned) and attributed to Aprovecho.<br>
<br>
What was not mentioned is the "concentrator" (disk or plate) that does precisely the same thing as does a "choke ring"and it is the
<br>
fundamental innovation of Wendelbo's Peko Pe TLUD (1990s) and Anderson's Champion TLUD (2005).
<br>
<br>
I hope that others will send comments about this publication that is worthy of wide consideration by all "Stovers".<br>
<br>
Paul<br>
<br>
<br>
<o:p></o:p></p>
<pre>Doc / Dr TLUD / Prof. Paul S. Anderson, PhD<o:p></o:p></pre>
<pre>Email: <a href="mailto:psanders@ilstu.edu">psanders@ilstu.edu</a><o:p></o:p></pre>
<pre>Skype: paultlud Phone: +1-309-452-7072<o:p></o:p></pre>
<pre>Website: <a href="http://www.drtlud.com">www.drtlud.com</a><o:p></o:p></pre>
<div>
<p class="MsoNormal">On 8/1/2017 6:36 AM, Neeraja Penumetcha wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<pre>Biomass cookstove technology and performance have significantly improved over the last decade. Yet entrepreneurs and designers trying to build a better stove can still face a wide range of challenges. Design features that improve performance can come with higher production costs or usability challenges, for example. Enterprises often have limited resources for research and development, but must produce higher performing, usable, affordable technologies to stay competitive. R&D advancements that help balance these requirements are often not translated into practical guidance that is accessible to stove designers.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>A new handbook aims to help designers and entrepreneurs by translating recent R&D advances into practical approaches for improving biomass cookstove performance, usability, and affordability. The Handbook for Biomass Cookstove Research, Design, and Development, was developed in partnership with MIT's D-Lab and the Global Alliance for Clean Cookstoves, with funding by UK aid from the UK government. Topics including ignition, air, fuel, mixing, and materials are covered through a synthesis of research findings and innovations from several different organizations. These components of the cooking process are all highly interrelated, so the handbook encourages consideration of these components together.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Download the full handbook here: <a href="http://cleancookstoves.org/resources/517.html">http://cleancookstoves.org/resources/517.html</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
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<pre><o:p> </o:p></pre>
</blockquote>
<p class="MsoNormal"><o:p> </o:p></p>
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