[Stoves] A call to stop using the WBT

Crispin Pemberton-Pigott crispinpigott at outlook.com
Sat Jan 27 10:14:05 CST 2018


Dear Andrew

Show me a cook who worries about the amount of energy released from a solid fuel when cooking, and not the amount of fuel. Just one.

After finding one, maybe it is Ron, ask if they want the actual energy released, or a vague, misrepresentative number.

The amazing things about the WBT are the incompetence with which it was created and later, defended, and the effort put into not correcting it, but preserving it as a monument to...what exactly?

Ron doesn't really want to preserve the WBT, he wants to rate stoves that have a fuel efficiency of 20% to be reported to be 40%.

That fuel efficiency metric will be used to calculate the ‎reduction in the harvesting of unsustainably harvested forests by improved stoves accessing CDM funding. A stove that reduces fuel cutting by 1/2, Ron wants to be rated as reducing it by 3/4.

Do you, Andrew, think that making such a misrepresentation of consumption would be mischievous, or fair, to the funder of the avoidance unsustainable deforestation?

Regards
Crispin




On 26 January 2018 at 10:51, Crispin Pemberton-Pigott <crispinpigott at outlook.com<mailto:crispinpigott at outlook.com>> wrote:
Dear Anh

Other than reporting the energy in the char and it's mass, what else should be reported?

The only thing that is needed is how much energy was released to do the task, establishing it is a bit troublesome as each species is different and moisture contents vary. With other fuels it's simple, we can weigh a LPG cylinder before and after use and deduct one from the other to establish the fuel used.


I have never been asked how much energy a stove uses out of the fuel it consumes during the replication of some task.

So the energy use isn't much relevant to the cook?


People always ask how much fuel a stove needs to 'do something'.Misrepresenting the fuel needed from the available resource to complete a task is mischievous.


We should not introduce mischief ‎to our performance evaluations.

Stop being mischievous then ;-)


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