[Stoves] Interesting TLUD application

Thu Mar 5 17:29:14 CST 2020

I think it failed to thrive due initially due to fuel input shortage.  It needed to reach a certain seize that didn't happen, so I hear.  Perhaps someone better informed can provide a good answer.

The parallel initiative, the Arivi paraffin stove in South Africa, never made it to market though it was given free to the industrial design company that was developing it.  Their freshly trained tester joint Taffy, Robinson and me at the SeTAR Centre shortly after that.

It was very clean-burning at high power. Really impressive.

Crispin

From: Stoves <stoves-bounces at lists.bioenergylists.org> On Behalf Of psa at drtlud.com
Sent: Thursday, March 05, 2020 15:47
To: 'Discussion of biomass cooking stoves' <stoves at lists.bioenergylists.org>; 'tluds at biochar. groups. io' <tluds at biochar.groups.io>; biochar at yahoogroups.com
Subject: Re: [Stoves] Interesting TLUD application

Crispin,

Thank you for that link.   But please note that it is from2010, back when BP was still funding the Oorja stove efforts.   I have not seen any recent data about the Oorja stoves.   And the website for      firstenergy.in     is not responding.

Paul

From: Stoves <stoves-bounces at lists.bioenergylists.org<mailto:stoves-bounces at lists.bioenergylists.org>> On Behalf Of Crispin Pemberton-Pigott
Sent: Thursday, March 5, 2020 11:40 AM
To: Discussion of biomass cooking stoves <stoves at lists.bioenergylists.org<mailto:stoves at lists.bioenergylists.org>>; tluds at biochar. groups. io <tluds at biochar.groups.io<mailto:tluds at biochar.groups.io>>; biochar at yahoogroups.com<mailto:biochar at yahoogroups.com>
Subject: Re: [Stoves] Interesting TLUD application

Dear Paul

One of the related referenced open source articles is
https://www.researchgate.net/publication/242588697_Gasifier_stoves_Science_technology_and_field_outreach<https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.researchgate.net%2Fpublication%2F242588697_Gasifier_stoves_Science_technology_and_field_outreach&data=02%7C01%7C%7C71f2d708cacc4f817bfc08d7c146b96e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637190381810158462&sdata=ekZ7bxQeJb8yMBZ6EbpDrzWqCSrqzwsng4N2i3S3t3g%3D&reserved=0>

Abstract
Development of a new class of single pan high efficiency, low emission stoves, named gasifier stoves, that promise constant power that can be controlled using any solid biomass fuel in the form of pellets is reported here. These stoves use battery-run fan-based air supply for gasification (primary air) and for combustion (secondary air). Design with the correct secondary air flow ensures near-stoichiometric combustion that allows attainment of peak combustion temperatures with accompanying high water boiling efficiencies (up to 50% for vessels of practical relevance) and very low emissions (of carbon monoxide, particulate matter and oxides of nitrogen). The use of high density agro-residue based pellets or coconut shell pieces ensures operational duration of about an hour or more at power levels of 3 kWth (~12 g/min). The principles involved and the optimization aspects of the design are outlined. The dependence of efficiency and emissions on the design parameters are described. The field imperatives that drive the choice of the rechargeable battery source and the fan are brought out. The implications of developments of Oorja-Plus and Oorja-Super stoves to the domestic cooking scenario of India are briefly discussed. The process development, testing and internal qualification tasks were undertaken by Indian Institute of Science. Product development and the fuel pellet production were dealt with by First Energy Private Ltd. Close interaction at several times during this period has helped progress the project from the laboratory to large scale commercial operation. At this time, over four hundred thousand stoves and 30 kilotonnes fuel have been sold in four states in India.

Regards
Crispin

From: Stoves <stoves-bounces at lists.bioenergylists.org<mailto:stoves-bounces at lists.bioenergylists.org>> On Behalf Of Anderson, Paul
Sent: Thursday, March 05, 2020 12:06
To: tluds at biochar. groups. io <tluds at biochar.groups.io<mailto:tluds at biochar.groups.io>>; Discussion of biomass cooking stoves <stoves at lists.bioenergylists.org<mailto:stoves at lists.bioenergylists.org>>; biochar at yahoogroups.com<mailto:biochar at yahoogroups.com>
Subject: [Stoves] FW: Interesting TLUD application

I thank David Lello (of South Africa) for finding this 2011 document.   (maybe other had seen it before?)

Nice work from the Balkans.   I wonder if they have continued and what progress might have been made.   Be sure to seen the "References" which name other unknown (to me) publications.

REQUEST:   Would someone volunteer to track down the authors to find out about further work?

Paul

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     incl. purchase of Woodgas Emission Reduction (WER) carbon credits
     and please tell you friends about these distinctive service efforts.
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     with pages 88 - 94 about  solving the world crisis for clean cookstoves.

From: Dave Lello <dave at ekasi.energy<mailto:dave at ekasi.energy>>
Sent: Thursday, March 5, 2020 2:17 AM
To: Anderson, Paul <psanders at ilstu.edu<mailto:psanders at ilstu.edu>>
Subject: Interesting TLUD application

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