[Stoves] Remarkable stove

[Crispin Pemberton-Pigott]

Dear Julien

In order to match the cooking power with the cooking power demand, I developed a field evaluation method for use in Indonesia as part of the CSI test method.  This was used in the field with some success.  It is the information baseline that informs the contextual lab test that is the “real”  or “full” CSI test method.

The idea is to ensure the cooking performance is what the users expect.  When converting a stove to work in a completely different manner, it is imperative to meet the demand for what I call the “pot-Watts” needed to prepare the meal. Eastern cooking usually requires high cooking power for a limited time.  Not always, so seeing the same lidded wok in different countries doesn’t mean they are used in the same manner. I like the idea of being able to use a TLUD with controllable power and have two cautions. It has to be large enough and tall enough to develop a good quality flame.  Being bigger doesn’t mean it is going to match the performance quality of  small unit.  It is not unusual for cooks to expect 2.2-2.5 kW delivered to the pot.  At a cooking efficiency of 30%, that means an 8000 Watt fire.  That level of power in a char maker means loading 1 kg of fuel per 20 minutes of cooking. Assuming a burn time of 40 minutes, that means 2 kg consumed per load with a 20% char yield (dry mass).

[cid:image001.png at 01D761E0.93062120]

Regards
Crispin

From: Stoves <stoves-bounces at lists.bioenergylists.org> On Behalf Of Julien Winter
Sent: Tuesday, June 15, 2021 11:13
To: Discussion of biomass cooking stoves <stoves at lists.bioenergylists.org>
Subject: [Stoves] Remarkable stove

Hi All;

I don't know exactly how the efficiencies were calculated.  They were done by stove testing labs in Universities and by the Government in Bangladesh, and they were following some version of the water-boiling test published by what was once called The Global Alliance for Clean Cook Stoves.

I should point out that I have never done nesting of a TLUD in a combustion stove, because we work with stand-alone TLUDs.  However, I have suggested to the Bondhu Chula Foundation (the main improved chimney stove in Bangladesh) that they research the idea.

Cheers,
Julien

--
Julien Winter
Cobourg, ON, CANADA
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20210615/4a9ff930/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 15966 bytes
Desc: image001.png
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20210615/4a9ff930/attachment.png>