[Stoves] Stove testing with and beyond the WBT

[Crispin Pemberton-Pigott]

Dear Gustavo

 

There is a great deal you can learn from having very simply instruments like
a scale and a thermometer. The following was obtained with a scale and a
thermometer. It is a charcoal stove with a high mass (which explains the
efficiency above 200% at the end). The stove costs about $2.50 to make in
Indonesia and sells for about $5.50. A series of 7 identical pots of water
were placed on the stove one after another to establish the heat transfer
efficiency, power, efficiency change with water temperature (none), retained
heat capacity, overall efficiency and efficiency v.s. power at different
stages of the burn. It took about 90 minutes.

 



 



 



 



 



 

No gas emissions, no PM. Imagine what we could show if we had a couple of
instruments!

 

Regards

Crispin

++++++++

 

 

thank you the information Crispin since I don´t have lab equipment only
basic WBT testing equipment this information it is very helpfull for my
work.

 

Best Regards

 

Gustavo

 

From: Crispin Pemberton-Pigott <crispinpigott at gmail.com
<mailto:crispinpigott at gmail.com> >
To: 'Paul Anderson' <psanders at ilstu.edu <mailto:psanders at ilstu.edu> >;
'Discussion of biomass cooking stoves' <stoves at lists.bioenergylists.org
<mailto:stoves at lists.bioenergylists.org> > 
Cc: 'Ranyee Chiang' <rchiang at cleancookstoves.org
<mailto:rchiang at cleancookstoves.org> > 
Sent: Thursday, April 4, 2013 11:39 PM
Subject: Re: [Stoves] Stove testing with and beyond the WBT

 

Here is the same PPT in PDF format.

 

Regards

Crispin

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