[Stoves] Jatropha oil lamp query

[Bjarne Laustsen]

Otto
We initially used Jatropha seeds directly as fuel in our gasifier stove. 
We stopped that when we found that some of our people when demonstrating 
the stoves over longer time, said that they got headache and was not 
feeling good.
We then shifted to using pellets made from a mix of Jatropha press cake 
and rice husk, mainly half of each on weight basis.

With use of these pellets we have not been having any complains of 
headache from people using the pellets and stove.
In such pellets the content of Jatropha oil is also much reduced 
compared to Jatropha seeds.
However there can still be some risk involved.
We have therefore also reduced the use of Jatropha press cake in our 
pellets.

I believe that there are need for scientific studies of the toxicity of 
Jatropha in relation to using it in energy applications.

Yours
Bjarne Laustsen

On 8/26/2014 11:10 AM, Otto Formo wrote:
> Bjarne,
>
> Could you please explain your experience about the toxic fumes from 
> the Jatropha seeds, since I understand you also make pellets out of it 
> for fuel in gasifier units?
>
> I have been very concerned and worried about those fumes from Jatropha 
> fuels, also when it comes to forced draft gasifier units.
>
> Regards
>
> Otto
> ------------------------------------------------------------------------
> Date: Tue, 26 Aug 2014 09:22:57 +0300
> From: bjarne at kiwlau.com
> To: stoves at lists.bioenergylists.org
> Subject: Re: [Stoves] Jatropha oil lamp query
>
> Hey James
>
> I have tried to to make a Jatropha oil lamp.
> At that time I found that back in time before the electrical bulp was 
> in use, People used oil lamp. Likely the best of these lamps was based 
> on the lamp developed by Argand.
> I build one lamp based on his principle and it worked well, however I 
> stopped working on it as I got concerned on the issues of health 
> effects from gasses from the toxic elements in the Jatropha seeds.
>
> Yours
> Bjarne Laustsen
>
> On 8/24/2014 1:02 PM, James Robinson wrote:
>
>     Dear list,
>
>     Does anyone have experience of oil lamps (specifically Jatropha)
>     that they could share with me please?
>
>     I'm involved with some work assessing the small-scale production
>     of Jatropha oil and it's use for lighting and can't find much
>     other literature on the issue. I'm after a description of the
>     design of a lamp that has a proven performance, has achieved
>     customer acceptance, and that is ideally commercially available.
>
>     Also, any help with an evidence base for toxicity (emissions not
>     fuel) and mosquito repelling properties would be appreciated. Once
>     done I'll feedback to the list/website with any relevant material.
>     Please reply on or off list.
>
>     Cheers
>     James Robinson
>
>
>     _______________________________________________
>     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
>
>     for more Biomass Cooking Stoves,  News and Information see our web site:
>     http://stoves.bioenergylists.org/
>
>
>
> -- 
> Bjarne Laustsen
> Director
> Kiwia & Laustsen Limited
> P.O. Box 285
> Karatu, Tanzania
> phone +255 787295684
>
> _______________________________________________ Stoves mailing list to 
> Send a Message to the list, use the email address 
> 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 
> for more Biomass Cooking Stoves, News and Information see our web 
> site: http://stoves.bioenergylists.org/
>
>
> _______________________________________________
> Stoves mailing list
>
> to Send a Message to the list, use the email address
> 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
>
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://stoves.bioenergylists.org/
>


-- 
Bjarne Laustsen
Director
Kiwia & Laustsen Limited
P.O. Box 285
Karatu, Tanzania
phone +255 787295684

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20140826/b0399ee4/attachment.html>