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Dear Frank</div>
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<span style="color: rgb(0, 0, 0); font-family: 'Slate Pro';">"The importance of ‘outside’ the stove is left to the end user and is used to pick one stove over another."</span></div>
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<span style="color: rgb(0, 0, 0); font-family: 'Slate Pro';">Well, that is why people buy cars based on their fuel consumption. The compression ratio and the combustion efficiency is not useful information for the customer, only the design engineers. </span></div>
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<span style="color: rgb(0, 0, 0); font-family: 'Slate Pro';">One of the most interesting things about the stove designing community is a historical obsession with the heat transfer efficiency. It was never a good guide to fuel consumption and with the advent
of char makers, has become positively toxic to the stove selection process. People think they are being told the fuel consumption when they see "efficiency" numbers. </span></div>
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<span style="color: rgb(0, 0, 0); font-family: 'Slate Pro';">If the energy released in the chamber is important, you should argue why, and to whom, and what, if anything, it offers a customer while being free to describe various consumers of the information. </span></div>
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<span style="color: rgb(0, 0, 0); font-family: 'Slate Pro';">How would you approach that challenge?</span></div>
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<span style="color: rgb(0, 0, 0); font-family: 'Slate Pro';">Regards </span></div>
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<span style="color: rgb(0, 0, 0); font-family: 'Slate Pro';">Crispin </span></div>
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<div class="" style="word-wrap:break-word">Dear Crispin, Paul and Stovers,
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<div class=""><span class="" style="background-color:rgb(255,255,255)">2. Crispin asks:</span></div>
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Which would you finance: a reduction in the energy drawn from the forest? Or a reduction in the energy released from the fuel consumed?</blockquote>
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<blockquote type="cite" class=""><span class="" style="font-family:Helvetica; font-size:18px; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; background-color:rgb(255,255,255); float:none; display:inline!important">There
is no single correct response. Both should be calculated and reported. And the circumstances need to be understood. <span class="x_Apple-converted-space"> </span></span><br class="" style="font-family:Helvetica; font-size:18px; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; background-color:rgb(255,255,255)">
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<div class="">The Correct Response Is! ….. : )</div>
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<div class=""><snip></div>
<div class="">OR</div>
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<div class="">1) (Crispin added) a reduction in the energy drawn from the forest?</div>
<div class="">2) the time it takes to gather fuel</div>
<div class="">3) the ability of the forest to regenerate</div>
<div class="">4) the type of fuel that is used (vegetative matter, dead twigs, wood)</div>
<div class="">5) business possibilities gathering wood</div>
<div class="">6) char (or not) being made</div>
<div class="">7) reduction of degrees of hazard gathering biomass</div>
<div class="">8) the number of wheelbarrow loads of wood being moved</div>
<div class="">9) etc. etc.</div>
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<div class="">All equal as a measure as the ‘reduction of energy drawn from the forest’. The importance of looking at it from outside the stove depends on the site specific situation. So for our purpose of testing stoves it is only important to look at it from
inside the combustion chamber - “reduction of energy released from fuel consumption”. The importance of ‘outside’ the stove is left to the end user and is used to pick one stove over another. </div>
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<div class="">Therefore we only need to calculate the Energy Used in the Combustion Chamber in a 1) repeatable 2) accurate 3) with precision 4) and common producible results from all (certified) labs doing the tests. The ‘outside’ results can then be determined
on a site specific and importance for the potential purchaser. </div>
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<div class="">So we start with Box 1 and get control of the fuel. Place limits on the fuel for a specific combustion chamber. Market the stove to locations having that fuel with those limits available. </div>
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<div class="">and we can start doing this any old time </div>
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<div class="">Regards</div>
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<div class="">Frank</div>
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<div class="">Frank Shields</div>
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