[Stoves] K Smith Article in Energy for Sustainable Development

[Crispin Pemberton-Pigott]

Dear Dean

 

I really appreciate the info and the flexibility you have built into the
stove. Can you please tell us how much fuel mass was burned (perhaps in the
case of a char consuming version) and the MJ/kg of the fuel? I wondered what
the emissions are per dry kg burned or per even better, per MJ of heat
produced.

 

My interest is to be able to make comparisons with other fuels and
combustion efficiencies.

 

Thanks

Crispin

 

 

From: stoves-bounces at lists.bioenergylists.org
[mailto:stoves-bounces at lists.bioenergylists.org] On Behalf Of Dean Still
Sent: 03 December 2010 13:31
To: Discussion of biomass cooking stoves
Subject: Re: [Stoves] K Smith Article in Energy for Sustainable Development

 

Hi All,

 

Adding more air holes in the bottom of the fuel chamber in a TLUD allows
pellets to burn up completely. If users want bio-char they just have to have
fewer holes. Then the char is made since there is not enough air to support
burning it.

 

If it is tuned (!), the TLUD is very low in PM when it does not make smoke
when starting and finishing the burn. CO is also generally low. In the well
tuned TLUD we generally see around 7g of CO and 400mg of PM during the WBT
compared to a carefully operated open fire at 55g CO and 2300mg PM.
Generally the TLUD makes less smoke at the finish with more air holes
because all the wood burns up without making smoke.

 

Isn't it great that a TLUD can be operated in both char making and no char
making modes? 

The user can choose whether they want greater fuel efficiency or to make an
agricultural additive.

 

Best,

 

Dean 

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