Dr. Anderson,<div><br></div><div>I know that the University of Florida - Lee County Extension Services - Agriculture and Natural Resources has plenty of Jatropha seeds. They offered to send us some a few months back. You can inquire with <span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; ">Fitzroy Beckford (<a href="mailto:fbeckford@leegov.com">fbeckford@leegov.com</a>) or </span>Martha Avila (<span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; "><a href="mailto:MAvila@leegov.com">MAvila@leegov.com</a>).</span></div>
<div><span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; "><br></span></div><div>
<span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; ">I'm excited to hear more about your TLUD that runs on Jatropha seeds. Unfortunately, I'm in Bangladesh and won't be able to attend ETHOS. However, Kristen Matsumura (cc-ed) is also working on the Jatropha research at CU and will be there.</span></div>
<div><span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; "><br></span></div><div>
<span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; ">I look forward to hearing more about it.</span></div>
<div><span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; "><br></span></div><div>
<span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; ">Cheers,</span></div><div><span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; ">Boston</span></div>
<div><span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; "><br></span></div><div>
<span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; "><br></span></div>
<div><br><br><div class="gmail_quote">On Thu, Jan 20, 2011 at 6:37 PM, Paul S. Anderson <span dir="ltr"><<a href="mailto:psanders@ilstu.edu" target="_blank">psanders@ilstu.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear Boston and all,<br>
<br>
I hope you can come to ETHOS meeting next weekend 28-30 Jan in Seattle and see the Jatropha-seed stove that will be discussed in a presentation and fired up at the stove demo. It is by "Jet City Stoveworks" (JCSW) (Seattle is Jet City) and "Pamoja" (NGO working in Tanzania). I have worked with them on this stove.<br>
<br>
The answer is yes, jatropha can be burned cleanly in stoves. but there are challenges.<br>
<br>
You and CU (Colorado Univ.?) and others with Jatropha efforts could fit in well with additional work on burning jatropha. Pamoja and JCSW and I (independently or together) would be glad to collaborate.<br>
<br>
There could be several ways to handle jatropha as a stove fuel. We are working (successfully) with one, which is to use the TLUD combustion technology. In brief, because the top-lit updraft (TLUD) functions with a decending pyrolysis front that is quite well behaved and uniform, the flaming pyrolysis (limited oxygen present) provides heat that vaporizes the jatropha oils, releasing them as gases along with the pyrolysis gases. The challenge is in the combustion of so much gas and that type of gas (probably longer-chain hydrocarbons).<br>
<br>
To handle the jatropha press cake, pelletizing or briquetting is probably the best option. And the press cake could be mixed with some other biomass. Loose presscake alone would block the needed air flow in the TLUD.<br>
<br>
I will leave the details of the Pamoja/JCSW to them to present 9 days from now. Then we could get into the real details.<br>
<br>
Request: Do you (at CU) or anyone else have any supply of natural (not pressed) jatropha seeds? JCSW and I are looking for some kilos.<br>
<br>
-- <br>
Paul S. Anderson, PhD<br>
Known to some as: Dr. TLUD Doc Professor<br>
Phone (USA): 309-452-7072 SKYPE: paultlud Email: <a href="mailto:psanders@ilstu.edu" target="_blank">psanders@ilstu.edu</a><br>
<br>
<br>
Quoting Richard Stanley <<a href="mailto:rstanley@legacyfound.org" target="_blank">rstanley@legacyfound.org</a>>: -- snipped --<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Boston,<br>
I would toss this question out to the combustion experts on the stoves and biomass lists...here.<br>
<br>
I have not tried it out but I know that others must have by now. The idea is to get behind the reason for poor combustion Crispin if I have him correctly implies that there is no poor biomass fuel, only poor stoves...Thats one avenue which the stoves group is particularly good at.<br>
<br>
It may be that no one has ever successfully burned jatropa...but, personally, I would not bet on it.<br>
snipped The point of this digression is this: I have little doubt that if you were to venture out into the jatropa-using world (not just the development project world or institutional research world) but the user-on-the-ground world, you will probably discover how somebody somewhere has figured out a way to process it as fuel...<br>
<br>
The ideal is to do this and to frame your scientific investigations at the same time: to run the "field" investigation in parallel and collaboratively with the lab analysis. Then you get not only the best of both worlds as information and data sources: You form a link to-- and directly or indirectly- help to empower those who can not only benefit from the results but who can become teachers of others for the future.<br>
</blockquote>
<br>
NOTE by PSA: This is what Pamoja is doing.<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Then publish it with all your collaborrants, for the rest of us. It will be a great contribution !<br>
<br>
Pressing on,<br>
<br>
Richard Stanley<br>
<a href="http://www.legacyfound.org" target="_blank">www.legacyfound.org</a><br>
Ashland Or.<br>
<br>
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On Jan 20, 2011, at 12:39 PM, Boston Nyer wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Richard,<br>
<br>
I have a related question to this discussion, which I think is interesting.<br>
<br>
At CU, we have a Jatropha project that you fielded some questions about a few months ago. As I'm sure you've heard, Jatropha seedcake does not burn well, not even close. So, one of our questions now is: what can we do with this waste stream this is both useful and desirable?<br>
<br>
One approach we will test is to carbonize the material and for biochar briquettes (and a water filter media, etc.). However, I wholeheartedly agree with your sentiment on biochar briquettes. What is your opinion if the ag-waste doesn't burn well normally? It still seems a bit contrived, eh?<br>
<br>
I'm looking forward to hearing your perspective.<br>
<br>
Cheers,<br>
Boston<br>
<br>
</blockquote></blockquote>
<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Boston Nyer<br>Graduate Student<br>Department of Civil, Environmental, and Architectural Engineering<br>University of Colorado at Boulder<br>(585) 503-3459<br>
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