[Stoves] Jatropha and its future

Lloyd Helferty lhelferty at sympatico.ca
Fri Aug 19 05:11:50 PDT 2011


Anand,
   Thanks for clarifying this.  This is exactly how I did the J-nut 
burn. I did not open the "capsules" -- they were burned together with 
the seed, so there was hopefully very little exposure to the toxic oils 
inside. (They would likely have been volatalized within the shell in the 
heat and made their was through the shell to be burned as vapour/gas in 
the flame.)
See: 
https://picasaweb.google.com/lh/photo/69Po3mIZt6--spdkLMkqIxX2ufyqTfkQhVPSbVND1WQ?feat=directlink 
<https://picasaweb.google.com/102212194234232824351/August182011?authkey=Gv1sRgCO-ks77A4PyWVw#5642046522573742050>
(This is a photo of the Jatropha nuts (J-nuts) both before and after 
running through my TLUD stove. After carbonizing, you can see that the 
seedpods shrink somewhat, but are essentially intact. ~ note: I was a 
little concerned at first that if I did not crack open the seedpods that 
they might 'pop' like popcorn...  That didn't happen, luckily. ;-)

   Lloyd Helferty, Engineering Technologist
   Principal, Biochar Consulting (Canada)
   www.biochar-consulting.ca
   603-48 Suncrest Blvd, Thornhill, ON, Canada
   905-707-8754; 647-886-8754 (cell)
      Skype: lloyd.helferty
   Steering Committee member, Canadian Biochar Initiative
   President, Co-founder&  CBI Liaison, Biochar-Ontario
     Advisory Committee Member, IBI
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    www.biochar.ca

Biochar Offsets Group: http://www.linkedin.com/groups?home=&gid=2446475
"Necessity may be the mother of invention, but innovators need to address problems before they become absolute necessities..."


On 2011-08-19 12:06 AM, Anand Karve wrote:
> To stovers interested in burning Jatropha seed:
> In nature, Jatropha seed is enclosed inside a capsule. If one is not
> interested in extracting oil from the seed, one need not separate the
> seed from the capsules. The capsules are dry and woody. They may be
> burned along with the seed. Burning the capsules together with the
> seed would save the labour of separating the seed from the capsules
> and would also give more fuel per plant.
> Yours
> A.D.Karve
> On Wed, Aug 17, 2011 at 7:47 AM, Jan Bianchi<janbianchi at comcast.net>  wrote:
>> Lloyd,
>>
>>
>>
>> I’m glad to hear you were successful in burning jatropha seed.  We have the
>> same experience with it being smoky at the end of the burn which is why
>> we’ve been toying with being able to shut off the primary air toward the
>> end.
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