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</o:shapelayout></xml><![endif]--></head><body lang=FR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Dear Ranyee,<br><br>It's been some time since I wanted to get back to you about the Round Robin Testing (RRT).<br>You have now answered all my questions, and I thank you for that, but in fact, we still don't know much about the RRT.<br>The details of its methodology and its results seem confidential and reserved only to the participating testing centers.<br><br>You say that the only protocol being used in the RRT is the "advanced WBT".<br>What is the "advanced WBT"? Is it the last version, the WBT 4.2.3?<br><br>As it's been demonstrated by the studies, which I listed again at the bottom of this email, the WBT has serious fundamental errors that render it of little use for stoves comparison nor development. None of the WBT versions have solved these errors, for these errors are intrinsic to the WBT.<br><br>You said "<i>All protocols have flaws and trade-offs that address different priorities. My personal decision is that there is room for every person, every testing center, and all protocols to improve, and that’s why my focus has been on facilitating collaboration and moving forward.</i>"<span style='color:#1F497D'><br><br></span>I think this is misrepresenting the true picture. You are putting all protocols on the same level, but they are far from being equal. The WBT is much more problematic than the others, and cannot give a clear idea of stove performance.<br>As mentioned by Lombardi and al., testing should be contextual:<span style='color:#CC0000'><br></span><i>"In fact, as more and more studies seem to demonstrate, performance evaluation is not merely concerned with the stove, but rather depends on an integrated Cooking System, composed of: stove design, fuel and moisture content, burn cycle and type of pots used. The concept that relying on a fixed testing procedure it is possible to predict performances of a specific stove in any circumstance is totally misleading."</i> <br>It is the responsibility of the GACC to give a honest picture about the state-of-the-art in stove testing, because not all protocols are the same, no.<br>Doing that is perpetuating the mistakes, again, and again, and again. It is blending what works okay with what doesn't work at all. It is making no distinction between the imperfect and the very broken.<br><br>You have told me that the third party organization managing the RRT is CLASP<span style='color:#CC0000'>:<br></span><a href="http://clasp.ngo/">http://clasp.ngo/</a><br>I don't know if CLASP has the technical expertise to work on testing protocols issues and improvements. But it seems that within the RRT, they are only given the WBT to work on, so they might not be able to see that there are better alternatives.<span style='color:#CC0000'><br><br></span>It's been now more than 4 months, and we have shown how flawed is the WBT, how there exists other, better, alternatives for stove testing, like the CSI, for example.<br>We are also seeing that the GACC answer and actions on such an important issue have been, and are still, falling very short.<span style='color:#CC0000'><br></span><br>We don't think anything positive nor useful will come from the RRT. It is difficult to understand why today, in 2017, any time and resources are spent on producing WBT results that will have a very high variability, and will not be exploitable, nor help draw any conclusion on testing matters. We don't think this action by the GACC is up to the challenge of making stove testing reliable.<br>We hope the ISO TC 285 can help solve this, but so far it has been a very long process, and we know very little of what is happening there, and how the issues are addressed.<br><br>We have waited more than enough from the GACC for solutions that never came. We are not willing to wait any longer, and are now calling for a collaborative, open, transparent effort to improve cookstove testing.<o:p></o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>Those who are interested can contact me (<a href="xvr.brandao%1f@gmail.com">xvr.brandao@gmail.com</a>) or Crispin Pemberton-Pigott (<a href="crispinpigott@outlook.com">crispinpigott@outlook.com</a>).<o:p></o:p></p><p class=MsoNormal>Best regards,<br><br>Xavier<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l7 level1 lfo1'><span style='font-size:10.0pt;font-family:"Times","serif"'>Fuzzy interval propagation of uncertainties in experimental analysis for improved and traditional three–stone fire cookstoves<br></span><a href="https://www.researchgate.net/publication/308898807_Fuzzy_interval_propagation_of_uncertainties_in_experimental_analysis_for_improved_and_traditional_three_-_Stone_fire_cookstoves"><span style='font-size:10.0pt;font-family:"Times","serif"'>https://www.researchgate.net/publication/308898807_Fuzzy_interval_propagation_of_uncertainties_in_experimental_analysis_for_improved_and_traditional_three_-_Stone_fire_cookstoves</span></a><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></li></ul><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l3 level1 lfo2'><span style='font-size:10.0pt;font-family:"Times","serif"'>Key differences of performance test protocols for household biomass cookstoves. Twenty-Second Domestic Use of Energy, IEEE 2014:1–11.<br></span><a href="http://energyuse.org.za/document-archive/"><span style='font-size:10.0pt;font-family:"Times","serif"'>http://energyuse.org.za/document-archive/</span></a><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></li></ul><p class=MsoNormalCxSpMiddle style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Times","serif"'>To access the file, select DUE [Domestic Use of energy COnference]. Select DUE 2014. Select PROCEEDINGS. Select paper by Zhang etal (PDFs arranged alphabetically).</span><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></p><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l8 level1 lfo3'><span style='font-size:10.0pt;font-family:"Times","serif"'>Performance testing for monitoring improved biomass stove interventions: experiences of the Household Energy and Health Project. Energy Sustainable Dev 2007;11:57–70. <br></span><a href="http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.461.783&rep=rep1&type=pdf"><span style='font-size:10.0pt;font-family:"Times","serif"'>http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.461.783&rep=rep1&type=pdf</span></a><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></li></ul><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l5 level1 lfo4'><span style='font-size:10.0pt;font-family:"Times","serif"'>The shortcomings of the U.S. protocol<br></span><a href="http://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=1534&context=etd"><span style='font-size:10.0pt;font-family:"Times","serif"'>http://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=1534&context=etd</span></a><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></li></ul><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l4 level1 lfo5'><span style='font-size:10.0pt;font-family:"Times","serif"'>Influence of testing parameters on biomass stove performance and development of an improved testing protocol<br></span><a href="https://envirofit.org/wp-content/uploads/2016/06/2012-influence-of-testing-parameters.pdf"><span style='font-size:10.0pt;font-family:"Times","serif"'>https://envirofit.org/wp-content/uploads/2016/06/2012-influence-of-testing-parameters.pdf</span></a><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></li></ul><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l6 level1 lfo6'><span style='font-size:10.0pt;font-family:"Times","serif"'>How many replicate tests are needed to test cookstove performance and emissions? — Three is not always adequate.<br></span><a href="http://gadgillab.berkeley.edu/wp-content/uploads/2014/03/D-13-00075-Wang-et-al._final.pdf"><span style='font-size:10.0pt;font-family:"Times","serif"'>http://gadgillab.berkeley.edu/wp-content/uploads/2014/03/D-13-00075-Wang-et-al._final.pdf</span></a><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></li></ul><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo7'><span style='font-size:10.0pt;font-family:"Times","serif"'>Systematic and conceptual errors in standards and protocols for thermal performance of biomass stoves<br></span><a href="https://www.researchgate.net/publication/309689616_Systematic_and_conceptual_errors_in_standards_and_protocols_for_thermal_performance_of_biomass_stoves"><span style='font-size:10.0pt;font-family:"Times","serif"'>https://www.researchgate.net/publication/309689616_Systematic_and_conceptual_errors_in_standards_and_protocols_for_thermal_performance_of_biomass_stoves</span></a><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></li></ul><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo8'><span style='font-size:10.0pt;font-family:"Times","serif"'>Quality assurance for cookstoves testing centers: calculation of expanded uncertainty for WBT<br></span><a href="http://www.newdawnengineering.com/website/library/Stove%20Testing/Testing%20Protocols/American%20WBT,%20CCT,%20KPT/2014%20March%20WBT%204.2.x%20Uncertainty,%20Gorrity,%20M.pdf"><span style='font-size:10.0pt;font-family:"Times","serif"'>http://www.newdawnengineering.com/website/library/Stove%20Testing/Testing%20Protocols/American%20WBT,%20CCT,%20KPT/2014%20March%20WBT%204.2.x%20Uncertainty,%20Gorrity,%20M.pdf</span></a><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></li></ul><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l2 level1 lfo9'><span style='font-size:10.0pt;font-family:"Times","serif"'>Key factors of thermal efficiency test protocols<br></span><a href="http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.1000.3936&rep=rep1&type=pdf"><span style='font-size:10.0pt;font-family:"Times","serif"'>http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.1000.3936&rep=rep1&type=pdf</span></a><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></li></ul><ul type=disc><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l9 level1 lfo10'><span style='font-size:10.0pt;font-family:"Times","serif"'>Towards a standard for clean solid-fuelled cookstoves<o:p></o:p></span></li></ul><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'><a href="https://www.researchgate.net/publication/274706950_Towards_a_standard_for_clean_solid-fuelled_cookstoves">https://www.researchgate.net/publication/274706950_Towards_a_standard_for_clean_solid-fuelled_cookstoves</a></span><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'> </span><span style='font-size:10.0pt;font-family:"Times","serif"'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>