Dear stovers, I very much agree with Paul. Oorja and First Energy in India are on the move and also, Phillips, with their fan driven stove, to be made in Lesotho, are also moving quicly forward. What`s surprise me most, is that Phillips, as a strong hold supplier, seems to "overlook" the importance of tests from these types of fan driven stoves, thinking mainly about emmissions.These types of stoves consume the char and can not be considered as biochar stoves, like Paul said. On the other hand, why dont they also promote and introduce their own, natural draft gasifier, to the rural areas?Several pilots should be set up for testing of acceptance and proper use, including different types of biomass as fuel, haveing in mind both household energy and bio-char production. We would be very much interessted to coorperate with Phillips on that issue, to promote and test out the natural daft gasifier for the rural areas, linked to both household energy and biochar, refering to the pilot on "Biochar in conservation farming" - Biochar production using the gasifierstove Peko Pe (TLUD ND) in Zambia 2011. Have a nice weekend. Greetings from DAR, TZ. Otto
Otto FormoMiomboSkype: miombo-norway Date: Sat, 1 Dec 2012 01:07:03 -0600 From: [email protected] To: [email protected] CC: [email protected]; [email protected]; [email protected]; [email protected] Subject: [Stoves] "stove-acceptance" of char-making [TLUD] stoves. Dear Stovers, On 11/30/2012 2:06 PM, [email protected] wrote: [RWL4b': <snip> I just finished reading the thesis by Robert Pendleton Taylor recommended by Jim Jetter yesterday. He has 6-7 different ways to subdivide the stoves universe and none are by char character.. However, the issue of how to handle char permeates that thesis - and I think appropriately. The char issue raised by Dr. Taylor revolves around "batch" stoves - which is a pretty close match to your "climate change" stoves. I need to emphasize that primary emphasis has to be on the "cooking/heating" (not on the char) - or no one will use a char-making stove. I think char-making stoves win the stove-acceptance battle hands-down - but there is almost no data to prove that. I agree with Ron on several points: 1. Almost no data. 2. TLUD stoves have acceptance by users. 3. That Ron and I are biased [but correct!!] in our favorable opinions about char-making stoves. But we also have some of the longest times working with them. Ron started in the 1990s and me in 2001, both with Tom Reed. The lack of data on stove acceptance of TLUD stoves is largely because of so little offer of them to users. And almost never have they been offered side by side with other types of stoves. Four exceptions: A. The Oorja TLUD-FA (fan assisted) did 400,000 units in India with BP funding. And that stove (with some style updates, etc) is still on the market by First Energy. Clearly somebody liked it enough to use it. However, the Oorja is not designed to make char. So set that case aside. B. Philips is getting into the gasifier stove scene. Unlikely that they are doing it without some data on acceptance by users. But no data from them. C. Some models of World Stoves by Nat Mulcahy make char, but again data on acceptance is not released. [All three cases above are by for-profit businesses.] D. The recently complete (Sept 2012, with Final Report still in Draft form) Mwoto TLUD-ND (natural draft) by the World Bank BEIA project in Uganda found that acceptance of that TLUD exceeded the ability of the tinsmiths to produce units. That shows some very favorable acceptance. As a result of that project, at least three private companies have been created (Mwoto Factories, Awamu Biomass Energy, and Pamoja - Uganda) and some independent tinsmiths are continuing to make TLUD-ND gasifier stoves in Uganda. These are start-up operations with minimal funding, but they are progressing and certainly have a positive attitude about user acceptance. In summary, Ron's statement of his belief that : char-making stoves win the stove-acceptance battle hands-down remains to be proven or dis-proven. Paul Paul S. Anderson, PhD aka "Dr TLUD" Email: [email protected] Skype: paultlud Phone: +1-309-452-7072 Website: www.drtlud.com _______________________________________________ Stoves mailing list to Send a Message to the list, use the email address [email protected] 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://www.bioenergylists.org/
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