<div dir="ltr"><div>Another Chinese little project. Surely, it is cookstove, not heater. Too expensive, 1500RMB (230 USD), in rural area, a big number, very big, no one buy, not even one, in rural area. For user, many uncertainties to use new type of stove. if free of charge, a trustworthy friend who is an expert about this stove, that might be fine.<br></div><div><br></div><div>stove thing should be open-source ( just like Dr Anderson's Champion Stove ), DIY, or made by acquaintance, it is something about family, a cultural thing, especially in country side. In city, electricity or LPG is enough.</div><div><br></div><div>a good approach for stove design maybe is that, basic knowledge of stove design spread among people, and people help each other.</div><div><br></div><div>concerning "stove intervention", during 1959-1961 in China, more than 30 millions of people died because a stove intervention movement. and people have memories.</div><div><br></div><div>best regards</div><div><br></div><div><br></div><div class="gmail_extra"><div class="gmail_quote">2017-11-30 2:13 GMT+08:00 Nikhil Desai <span dir="ltr"><<a href="mailto:pienergy2008@gmail.com" target="_blank">pienergy2008@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr">Paul: <br><br>It's not worth getting excited over this paper, though I explain below I wholeheartedly commend the authors what ought to have been Stoves Lesson 1 forty years ago. (They even refer to Manibog 1984, which started me off on formal research in stoves.)<br><br>I note <br><br><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">"The existing available semi-gasifier biomass cookstoves all lacked user-desired functions such as auto-ignition and flame adjustment. Field visits to homes near Beijing revealed that most homes with semi-gasifier stoves had suspended use due to breakage or difficulty using them for cooking. We identified several design features that led to frequent breakage, namely cracking of the inner combustion chamber wall and stove grate blockage from slag that formed due to high temperature combustion and inefficient ash removal. In addition, most semi-gasifer cookstoves required fuel loading from the top, a feature that made it impossible to add fuel during cooking and, according to stove users, greatly limited its functionality to meet daily cooking needs."</blockquote><br>Is it enough to say "Decades of disappointing stove intervention programs highlight the need for new approaches and development efforts"? Based on a study of 16 homes over a few weeks in summer-time with "structured and semi-structured interviews with primary cooks at 2 d and 6 weeks post-installation of the prototype stoves"? <br><br>The conclusion "Our proposed design strategy can be applied to other stove development initiatives in China and other countries." should be read in combination with "The unique features of the particular semi-gasifier, biomass cookstove discussed here need not be directly transferable to other regions in China. Rather, the user-centered, iterative engineering design process presented could be replicated in other provinces and regions to identify optimal stove design that is responsive to the local context."<br><span style="color:rgb(51,51,51);font-family:minion-pro,Georgia,'Times New Roman',STIXGeneral,serif;font-size:18px"><br></span>Still, the most relevant observation - which need not have required this study - is simply this: <br><br><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px">" Stove designs (Tryner
et al 2014 and 2016) that over-emphasize technical
performance early in the stove development process
limit the extent to which user input obtained later in
the process—if sought—can lead to stove design
modification. The user-centered and iterative engineering
design approach we present prioritized local
users’ preferences and aspirations, and sought to
combine user input with high technical performance.
Our results suggest that valuable engineering insights
are gained in the early stages of stove design through
targeted field-based data collection that yield information
unattainable in the laboratory."</blockquote><br>Which is why the WHO/ISO TC-285 exercise is so immature, it needs to be aborted. <br><br>I wonder who would digest and apply this lesson of user-centered iterative engineering method. I suspect you have, and perhaps others can claim such a trail of experience instead of just reporting WBT-based performance metrics as in the BAMG Catalog of stoves for GACC. <br><br>I am afraid this paper might end up like Manibog's and various other stove evaluation reports that have repeatedly said, essentially, "User matters." It is only after determining the service standard (cooking and other tasks desired by the user) and the objective of an intervention (not necessarily limited to the efficiency and pollutant emissions, and in some contexts not even these) that a stove designer can go about designing a product. <br><br>Large programs of such research, guided by competent and unbiased proponents., ought to have been generated when GACC began. It is still not too late; GACC just needs to be placed in a proper home, independent of its US masters. <span class="gmail-HOEnZb"><font color="#888888"><br><br>Nikhil</font></span><span class="gmail-"><div class="gmail_extra"><div><div class="gmail-m_-5064168201744374831gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><font face="georgia, serif"> <br></font><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Wed, Nov 29, 2017 at 11:04 AM, 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:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div bgcolor="#FFFFFF">
Ron,<br>
<br>
Not correct. The stove type was not TLUD. It was essentially a
trickle-feed forced air pellet heater (as in the home heating units)
but made at the size of a cooking stove. Nice work, but not a TLUD
and no real chance to make charcoal because the pellets are burned
to ash under the streams of forced air. It might become very
successful. Good approach to designing changes. But also heavy
and expensive compared to the TLUD stoves that are currently having
great success in West Bengal.<br>
<br>
Paul<br>
<pre class="gmail-m_-5064168201744374831m_5728890367327613837moz-signature" cols="72">Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email: <a class="gmail-m_-5064168201744374831m_5728890367327613837moz-txt-link-abbreviated" href="mailto:psanders@ilstu.edu" target="_blank">psanders@ilstu.edu</a>
Skype: paultlud Phone: <a href="tel:(309)%20452-7072" value="+13094527072" target="_blank">+1-309-452-7072</a>
Website: <a class="gmail-m_-5064168201744374831m_5728890367327613837moz-txt-link-abbreviated" href="http://www.drtlud.com" target="_blank">www.drtlud.com</a> </pre></div></blockquote></div></div></span></div>
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