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</o:shapelayout></xml><![endif]--></head><body lang=FR link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Dear Kirk,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Thanks for your questions, and for being open to discussion.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>To be short, what the studies question is not the equipment involved, it is the testing protocol itself. The testing protocol is flawed on several aspects, statistical approach, metrics, calculations, repeatability. It is not reliable.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Whether it is used with a reliable measuring equipment, or an unreliable one, will not allow for its results to be reliable.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>The WBT in itself is fundamentally flawed.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>It means that yes, CO, CO2, and PM and PM 2.5 results are very much in dispute.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Does this answer your question ?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><i><span lang=EN-US>“When will these other better tests be available for me to use?”<o:p></o:p></span></i></p><p class=MsoNormal><span style='color:#1F497D'>That’s what I said in my previous messages: they are available for you to use, they have been available for many years.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Notable alternative testing protocols: CSI method (the latest one), Heterogeneous Testing Protocol (HTP), SeTAR Energy Efficiency Test (current version is v1.57) <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>These protocols can be downloaded from the following Google Drive folder:</span><span style='color:#1F497D'> </span><span lang=EN-US><a href="https://drive.google.com/drive/folders/0B5rmmRmIsdlnQlRQX3A1cXVOQ3M?usp=sharing">https://drive.google.com/drive/folders/0B5rmmRmIsdlnQlRQX3A1cXVOQ3M?usp=sharing</a> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Would you consider testing your stove using one of these protocols?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I have another question: where can we find the WBT results for the Wonderwerk stove? The ones that were done at the Aprovecho Research Center, and the ones that were done at Berkeley?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Please find below this email the list of studies.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Please, do take the time to read them. It is very important for you, as a stove developer who was advised to use the WBT, to understand what are the implications.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Thanks again!<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><br>Xavier<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='color:#1F497D'>Studies on the WBT and its issues <o:p></o:p></span></b></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Lombardi F., Riva F., Bonamini G., Barbieri J., Colombo E., Laboratory protocols for testing of Improved Cooking Stoves (ICSs): A review of state-of-the-art and further developments, 06/02/2017 <a href="http://www.sciencedirect.com/science/article/pii/S096195341730065X">http://www.sciencedirect.com/science/article/pii/S096195341730065X</a> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Lombardi F., Riva F., Colombo E., Guidelines for reporting and analysing laboratory test results for biomass cooking stoves, 01/2017 https://www.researchgate.net/publication/312849490_Guidelines_for_reporting_an d_analysing_laboratory_test_results_for_biomass_cooking_stoves <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Riva F., Lombardi F., Pavarini C., Colombo E., Fuzzy interval propagation of uncertainties in experimental analysis for improved and traditional three–stone fire cookstoves, 09/07/2016 https://www.researchgate.net/publication/308898807_Fuzzy_interval_propagation_ of_uncertainties_in_experimental_analysis_for_improved_and_traditional_three__Stone_fire_cookstoves <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Bailis R., Berrueta V., Chengappa C., Dutta K., Edwards R., Masera O., Performance testing for monitoring improved biomass stove interventions: experiences of the Household Energy and Health Project. Energy Sustainable Dev 2007;11:57–70., 2007 http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.461.783&rep=rep1&type =pdf <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Pendelton Taylor R., The shortcomings of the U.S. protocol, 2009 http://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=1534&context=etd <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> L’Orange C., DeFoort M., Willson B., Influence of testing parameters on biomass stove performance and development of an improved testing protocol, 2009 https://envirofit.org/wp-content/uploads/2016/06/2012-influence-of-testingparameters.pdf <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Gorrity M., Trujillo G., Quality assurance for cookstoves testing centers: calculation of expanded uncertainty for WBT, 2013 http://www.newdawnengineering.com/website/library/Stove%20Testing/Testing%2 0Protocols/American%20WBT,%20CCT,%20KPT/2014%20March%20WBT%204.2.x%2 0Uncertainty,%20Gorrity,%20M.pdf <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Ding H., Liu J., Zhang Y., Dong R., Pang C., Key factors of thermal efficiency test protocols, 2013 http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.1000.3936&rep=rep1&ty pe=pdf <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Zhang Y., Pemberton-Pigott C., Zhang Z., Ding H., Zhou Y., Dong R., Key differences of performance test protocols for household biomass cookstoves. Twenty-Second Domestic Use of Energy, IEEE 2014:1–11., 2014 http://energyuse.org.za/document-archive/ To access the file, select DUE [Domestic Use of energy COnference]. Select DUE 2014. Select PROCEEDINGS. Select paper by Zhang etal (PDFs arranged alphabetically). <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Wang Y., Sohn MD., How many replicate tests are needed to test cookstove performance and emissions? — Three is not always adequate., 2014 http://gadgillab.berkeley.edu/wp-content/uploads/2014/03/D-13-00075-Wang-etal._final.pdf <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Lloyd P., Annegarn H., Pemberton-Pigott C., Towards a standard for clean solidfuelled cookstoves, 2015 https://www.researchgate.net/publication/274706950_Towards_a_standard_for_cle an_solid-fuelled_cookstoves <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Zhang Z., Zhang Y., Zhou Y., Riaz A., Pemberton-Pigott C., Annegarn H., Dong R., Systematic and conceptual errors in standards and protocols for thermal performance of biomass stoves, 2016 https://www.researchgate.net/publication/309689616_Systematic_and_conceptual_ errors_in_standards_and_protocols_for_thermal_performance_of_biomass_stoves <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><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"'>De :</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Stoves [mailto:stoves-bounces@lists.bioenergylists.org] <b>De la part de</b> Kirk H.<br><b>Envoyé :</b> mardi 19 décembre 2017 21:18<br><b>À :</b> Discussion of biomass cooking stoves<br><b>Objet :</b> Re: [Stoves] Going back to 3-Stone Fire [Was Re: Chinaandcookstoves]<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>Crispin, <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The fact that you did not mention sensors is the problem because sensors were in my question. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Since your response did not answer my question but rather pushed your anti-WBT agenda, I had no choice but to guess. I did not impute disagreements, I could only guess that your disagreement extended to the sensors and filters. If they did not then you should have made that clear in your response instead of pushing your agenda. I quite clearly asked if the CCT is included in the disagreement. No answer in your response. I could only make guesses, because your response was so far off from answering my question. All I wanted was for my question to be answered. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Aside from this, thank you for answering my question in this last contribution. No you do not include the sensors and filters in the disagreement. I can now feel comfortable that the CO, CO2, and particulate results are not in dispute.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>When will these other better tests be available for me to use?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Kirk H.<o:p></o:p></span></p></div><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br /> <table style="border-top: 1px solid #D3D4DE;">
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