[Stoves] Thai Bucket Stove

Sun Dec 3 16:50:11 CST 2017

List and ccs

	1.  Thanks Tom for his tremendous listing of charcoal-related  papers and events from more than 20 years ago.

	2.  What i find missing from this discussion is that all jikos are operating most of the time with badly-made char - often with illegal char.  I started in this business after seeing how badly the wonderful country of Sudan has been ruined by extensive (excessive) char usage.  Early stove list discussions (initiated and supported for more than 20 years by Tom) was on what we now call TLUDs.  It was mostly in the spirit of making that char in an acceptable manner.  Many of us believed (and I still do) that cooking with a TLUD is much easier than cooking with any Jiko.

	3.  As time progressed, this list learned (about 12 years ago - from papers on Terra Preta) that char could not only be made satisfactorily but it had a much higher societal benefit if placed in soil as (now called) biochar.  Tom started a list on this new aspect of charcoal before the word “biochar” was even officially adopted.

	4. So I submit that improved jikos should now be compared with TLUDs that are superior by every ISO standard measure.  Their restriction to batch mode operation is minimal when a few different sizes are in the package of utensils - in part because TLUDs also save cook’s time.  But mainly - cooks can make money while they cook.  And the produced biochar can help improve the supply of food - while taking CO2 out of the atmosphere.  The future is not with jikos.

Ron
	

> On Dec 3, 2017, at 3:04 PM, Crispin Pemberton-Pigott <crispinpigott at outlook.com> wrote:
> 
> Thanks, Tom for the great additions.
>  
> In the early stage of the IKJ it was apparent that the ceramic component was going to be the major hurdle. The acknowledgements page in the 1983 report by Maxwell Kinyanjui and Laurie Childers has this:
>  
> <image001.png>
> That says there was an educational tour to Thailand.
>  
> Hugh Allen was hired by ATI (Washington) but I am not clear if he started with CARE or ended up with them. In his book “The Kenyan Ceramic Jiko – A manual for stove makers” (IT Publications, 1991) he says the production system present was developed between 1986-1988.   The book is contained in the AT Microfiche Library from Volunteers in Asia. IT Publications, ATI and CARE are credited for the book.
>  
> I think Hugh was a ceramics engineer because he had studied ceramics under the son of world famous Bernard Leach – the British Potter. Hugh told me the reason he was contracted to work on the stove was the difficulty in getting reliable results from the kilns: losses of something like 40% were normal in the firing.
>  
> He developed the low tech Jigger Jolly and forming tools, standardized the hole pattern and gave comprehensive instructions about how to develop the clay content and fire them. He introduced dome-topped kilns and spread the production technology to the Sudan, Uganda, Tanzania, Togo, Malawi and Rwanda. In short he “professionalized” the product, bringing firing losses down to 3%. Later he led the same type of exercise with the Bielenberg sunflower oil press which inspired me greatly.
>  
> Footnote 2 reads:
> <image002.jpg>
> Regards
> Crispin
>  
>  
> +++++++++
>  
> We hope that Robert recovers. I have had many informative exchanges with him over the years. He may have informed this group about the Thai bucket and the KCJ. I’ll have to look at the early archives (1996-2000).
>  
> Thanks Teddy for the KCJ history. 
> See also: http://www.solutions-site.org/node/50 <https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.solutions-site.org%2Fnode%2F50&data=02%7C01%7Ccrispinpigott%40outlook.com%7Ca4234e86739e4192671308d53a8adfb1%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636479290492647116&sdata=19Fd57moiKctwoIs%2FHauUv%2FTIxUzc9z%2Bk6nfxK3CEiI%3D&reserved=0>
>  
> The Eindhoven group may be able to shed some light on the origins of the KCJ. It wasn’t that long ago (2006?) that Dean Still gathered Piet Visser, and KK Prasad, and P Verhaart at an ETHOS meeting.
>  
> This takes us back to some thoughtful work on stoves:
>  
> What Makes People Cook with Improved Biomass Stoves? A Comparative International Review of Stove Programs Douglas F. Barnes, Keith Openshaw, Kirk R. Smith, and Robert van der Plas, WORLD BANK TECHNICAL PAPER NUMBER 242 ENERGY SERIES. 1994
>  
> There may be a clue in a 1982 review of the Thai ceramic stove cited in that review:
> https://link.springer.com/article/10.1007/BF02904586 <https://link.springer.com/article/10.1007/BF02904586>
> The performance of Thai charcoal stove 
> P D DUNN, P SAMOOTSAKORN and N JOYCE Department of Engineering, University of Reading~ U.K. Proc. Indian Acad. Sci. (Engg. Sci.), Vol. 5, Pt. 4, December 1982, pp. 361-372. t~) Printed in India
>  
> Or in Keith Openshaw’s 1979 review:
> Openshaw, Keith. 1979. "A Comparison of Metal and Clay Charcoal Cooking Stoves." Paper presented at the Conference on Energy and Environment in East Africa, Nairobi, Kenya.
>  
> And in 1982:
> Openshaw, Keith. 1982. "The Development of Improved Cooking Stoves for Urban and Rural Households in Kenya." Stockholm: The Beijer Institute, Royal Swedish Academy of Sciences.
>  
> There were several projects underway in Kenya during the 1980-1987 time period. A few people I have met have told stories about the early development of the KCJ. One Canadian told me that shortly after it was introduced it appeared in all sizes in the markets without regard to dimensions and air hole suited to the size or capacity. A ceramicist from Eugene, Oregon, contributed at some point.
>  
> The Barnes et. al paper has a long list of stoves projects that were active at the time. It was cited in a paper presented by Tom Reed and Ron Larson in 1996 at a thermochemical conference in Banff, Canada.
> http://stoves.bioenergylists.org/content/wood-gas-stove <https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fstoves.bioenergylists.org%2Fcontent%2Fwood-gas-stove&data=02%7C01%7Ccrispinpigott%40outlook.com%7Ca4234e86739e4192671308d53a8adfb1%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636479290492647116&sdata=hXQgwvCboIrOsn%2BkklL5dO%2FutYVALy1BTeMMT%2B5XMRA%3D&reserved=0>
>  
> My conversations with Tom, Ron, and Mark Bryden at that conference led to the creation of this discussion list as an outgrowth of earlier (1994) bioenergy and gasification lists that I hosted. Ron became the list moderator and the Kenya group was active. Early discussions on the list, which Robert contributed to, included stoves like the KCJ and Thai bucket. Mark, Dean, and Larry Winiarsky started  ETHOS in about 2000, the same year as the Pune stoves conference hosted by the Karves.) We look forward to continuing the stoves “conversation” at ETHOS Jan 26-28.
> http://www.ethoscon.com/2018-registration/ <https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ethoscon.com%2F2018-registration%2F&data=02%7C01%7Ccrispinpigott%40outlook.com%7Ca4234e86739e4192671308d53a8adfb1%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636479290492647116&sdata=cV2%2FjOvCC3oBkzzsjDzLn2tStQ1N3QdmUSYPKf0nb68%3D&reserved=0>
>  
> Tom
>  <> 
> _______________________________________________
> Stoves mailing list
> 
> to Send a Message to the list, use the email address
> stoves at lists.bioenergylists.org <mailto:stoves at lists.bioenergylists.org>
> 
> to UNSUBSCRIBE or Change your List Settings use the web page
> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org <http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org>
> 
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://stoves.bioenergylists.org/ <http://stoves.bioenergylists.org/>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20171203/b9f2b36d/attachment.html>