[Stoves] Jatropha and its future

[Anand Karve]

Dear Jan,
I was refering to the fruit hulls. In the case of castor and Jatropha
they are called capsules. It is the legumes that have pods. Capsules
and pods both crack open  after drying to shed the seeds on the
ground. Among the legumes, it is groundnut (=peanut) in which the dry
pods do not crack open automatically on drying
Yours
A.D.Karve.

On Sat, Aug 20, 2011 at 12:51 AM, Jan Bianchi <janbianchi at comcast.net> wrote:
> Lloyd and Arnand
> I'm not sure if Arnand was referring to this or not but the jatropha seed
> actually grows in a pod--I think two to a pod.  Maybe he is referring to the
> pods being burnable as opposed to the cask around the seed.
> Jan
>
> Sent from my iPhone
> On Aug 19, 2011, at 5:11 AM, Lloyd Helferty <lhelferty at sympatico.ca> wrote:
>
> 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
> (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
>   http://www.linkedin.com/groups?gid=1404717
>   http://www.facebook.com/group.php?gid=42237506675
>   http://groups.google.com/group/biochar-ontario
>   http://www.meetup.com/biocharontario/
>   http://grassrootsintelligence.blogspot.com
>    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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-- 
***
Dr. A.D. Karve
President, Appropriate Rural Technology Institute (ARTI)

*Please change my email address in your records to: adkarve at gmail.com *