[Stoves] Specific heat capacity/ Stove preformance data

[Sarbagya R. Tuladhar]

Hi Crispin,

Yes, the charcoal remaining is subtracted from the initial amount of wood used. 

The stove even though can burn that char (we have done that numerous times) however for lab tests we throw it away and start with a fresh batch. The consistency in the tests are hence maintained. The wood species we use for our purpose is Casuarina with an energy value of 20,790 kJ/kg.

Cheers

Sarbagya 

On 13/08/2013, at 5:13 PM, Crispin Pemberton-Pigott wrote:

> Dear Sarbagya
> 
> Are you deducting charcoal remaining as 'wood not consumed' in that calculation?
> 
> If you are, can the stove burn that char on the next run or is it thrown away?
> 
> Please everyone note that we can't tell the real energy efficiency if we do not know the heat content of the mass of fuel. It is most helpful if the reported figure is 'the energy needed to perform the task' not the mass of fuel. We don't all use the same fuel - in fact we can all use different fuels if we report energy instead of mass. 
> 
> Thanks
> Crispin
> From BB9900
> 
> -----Original Message-----
> From: "Sarbagya R. Tuladhar" <sarbagya007 at gmail.com>
> Sender: "Stoves" <stoves-bounces at lists.bioenergylists.org>
> Date: Tue, 13 Aug 2013 14:02:30 
> To: Discussion of biomass cooking stoves<stoves at lists.bioenergylists.org>
> Reply-To: Discussion of biomass cooking stoves
> 	<stoves at lists.bioenergylists.org>
> Subject: Re: [Stoves] Specific heat capacity/ Stove preformance data
> 
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