[Stoves] History of the KAKUTE plant oil stove

Wed Sep 13 02:03:09 CDT 2006

Dear Stovers,

We have run quite a number of tests of Jatropha biodiesel through Primus
stoves. The biodiesel burns allright except after 5-6 hours the nozzle gets
choked because of the built up of carbon. Thus more R&D is required in
developing a stove where the carbon builtup can be eliminated by high
temperatures. The stove burns with green flame. I guess it could be because
of some salts in the biodiesel.

Cheers. Anil K Rajvanshi

On 9/13/06, Tom Miles <tmiles at trmiles.com> wrote:
>
> Jonathan,
>
>
>
> Thank you for a very interesting and timely post. I took the liberty to
> put
> it on the website at www.bioenergylists.org <
> http://www.bioenergylists.org/>
> along with links to Protree and Kakute Ltd. We often hear about Jatropha
> so
> it's nice to fit a plant to a name, to hear the story and to see photos of
> the whole process.
>
>
>
> It looks like a plant and a process that would fit well with other light,
> cooking and agricultural activities.
>
>
>
> Regards,
>
>
>
> Tom Miles
>
>
>
>
>
> _____
>
> From: Jonathan Otto [mailto:ottojonathan at hotmail.com]
> Sent: Tuesday, September 12, 2006 1:28 PM
> To: e.j.rodenhuis at student.utwente.nl; stoves at listserv.repp.org;
> tmiles at trmiles.com
> Subject: History of the KAKUTE plant oil stove
>
>
>
> Dear All,
>
> Maybe I'm jumping in at the wrong moment, but I can tell you about the
> KAKUTE (not Kakuta) stove and lamp, as I have been part of the group
> working
> on it (on and off) since the start in 1997 in Tanzania.
>
> Erwin Protzen did the original write-up 7 or 8 years ago, a fine piece of
> work, but the models have progressed a lot since then.
>
> The problem with adapting a kerosene stove to plant oils is much more one
> of
> varying viscosities than purity of the oil. Jatropha oil will not
> willingly
> mount the 4 or 6 inches required of the liquid fuel in the usual Asian
> cookstove -- it's just too damn thick at room temperatures. The challenge
> seems to be finding the best (affordable) wicking material and other
> optimum
> design elements to supply enough oxygen for this hot, clean buringing oil.
> Maybe that design already long perfected and a million units in use in
> India, but we have not been able to get definitive information on
> successfull adaptations of  liquid fuel stoves for use with plant oils. So
> iin brief, we have a fine lamp design for household use, but the stove is
> not ready for prime time, yet.
>
> Lack of funds, and maybe plain old ingenuity, prevented us from making a
> breakthrough plant oil stove design in the 90s. The team split up to
> pursue
> other interests, and those of us who were left turned our energy (bad pun)
> to stimulating more Jatropha planting and thus seed/oil production against
> the day when better minds would produce an affordable and otherwise
> appropriate stove design. We focused on another and more immediately
> marketable use of the oil -- its excellent saponific qualities -- to make
> a
> cold-process inexpensive soap with interesting medicianl properties that I
> will not go into as they do not fit with this listserve's focus.
>
> 6 years later, 50 tons of Jatropha seed have been grown, gathered and sold
> for soapmaking, planting and research, but the stove design issue
> languishes. Given the ubiquitousness of this tropical hedgerow species --
> I've seen it grown from Cuba to Mali to Bangaladesh -- a simple stove
> design
> for Jatropha and other plant oils would be a boon to humanity, and a
> blessing to the environment, as half of all the trees cut down in the
> world
> go to cook dinner.
>
> That is the short story of the KAKUTE stove to date. Anyone want to write
> the next chapter?
>
> Salaams,
>
> Jonathan Otto, Pamoja Inc.
>
>
>
>
>
> _____
>
>
> From:  "Rodenhuis, E.J. (Erik Jan,Student TBK)"
> <e.j.rodenhuis at student.utwente.nl>
> To:  <stoves at listserv.repp.org>,<tmiles at trmiles.com>
> Subject:  Re: [Stoves] Kakuta stove / stoves for vegetable oils/ wick
> stoves
> Date:  Tue, 12 Sep 2006 20:50:52 +0200
> >Dear Tom, list,
> >
> >
> >
> >Good point Tom!  For list: the original topic can be found at: HYPERLINK
> "http://bioenergylists.org/en/vegestove"
> http://bioenergylists.org/en/vegesto
> ve
> >
> >
> >
> >I came across conflicting information on this topic. In an article by
> Erwin
> Protzen HYPERLINK
> "http://www.jatropha.org/lamps/protzen2.html"
> http://www.jatropha.org/lamps/p
> rotzen2.html, he states that the wicks on a wick stove choke up after two
> hours of burning.
> >
> >From another source HYPERLINK
> "http://www.saipetro.com/"http://www.saipetro.com/ I understood that using
> jatropha oil in kerosene burners is common practise in India. On this site
> you can see something like a Feuerhand lamp and also a stove, that I think
> is a Butterfly stove by Lea Hin Group from Singapore HYPERLINK
> "
> http://www.butterflyleahin.com/prod.asp?page=2&cate_id=3&cate_name=Kerosene
> +Stove&cate_level=1&parent_id=0"
> http://www.butterflyleahin.com/prod.asp?page
> =2&cate_id=3&cate_name=Kerosene+Stove&cate_level=1&parent_id=0
> >
> >The people of Lea Hin don't know how their stove will function on
> vegetable
> oil.
> >
> >
> >
> >Difference characteristics namely the purity of the oil could explain
> this
> difference in outcomes.
> >
> >
> >
> >Transesterification to a bio diesel is the solution I guess...
> >
> >HYPERLINK
> "http://www.castoroil.in/reference/plant_oils/uses/fuel/bio_fuels.html
> "http:
> //www.castoroil.in/reference/plant_oils/uses/fuel/bio_fuels.html
> >
> >HYPERLINK
> "http://journeytoforever.org/biodiesel_yield.html"
> http://journeytoforever.or
> g/biodiesel_yield.html
> >
> >HYPERLINK
> "http://journeytoforever.org/biodiesel_make.html#biodnew"
> http://journeytofor
> ever.org/biodiesel_make.html#biodnew
> >
> >HYPERLINK
> "http://www.attra.ncat.org/attra-pub/PDF/biodiesel.pdf"
> http://www.attra.ncat
> .org/attra-pub/PDF/biodiesel.pdf
> >
> >HYPERLINK
> "http://www.biodiesel.org/pdf_files/fuelfactsheets/Production.PDF"
> http://www
> .biodiesel.org/pdf_files/fuelfactsheets/Production.PDF
> >
> >HYPERLINK
> "http://www.homebiodieselkits.com/"http://www.homebiodieselkits.com/
> >
> >Maybe something for the bioconversion reference sites?
> >
> >
> >
> >Comments are welcome.
> >
> >
> >
> >Erik
> >
> >
> >
> >    _____
> >
> >Van: Tom Miles [mailto:tmiles at trmiles.com]
> >Verzonden: zaterdag 19 augustus 2006 17:46
> >Aan: Rodenhuis, E.J. (Erik Jan, Student TBK)
> >Onderwerp: RE: Kakuta stove / stoves for vegetable oils
> >
> >
> >
> >Erik,
> >
> >
> >
> >Is the problem with the Kakuta a problem with the stove or with the
> purity
> of the oil? I noticed the oil purification articles on Keith Addison's
> JourneytoForever site.
> >
> >
> >
> >Tom
> >
> >
> >
> >
> >
> >
> >--
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> >
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-- 
Nimbkar Agricultural Research Institute (NARI)
Tambmal, Phaltan-Lonand Road
P.O.Box 44
Phaltan-415523, Maharashtra, India
Ph:91-2166-222396/220945
e-mail:nariphaltan at gmail.com
          anilrajvanshi at gmail.com
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