[Stoves] Fabricated Burn Barrel TLUDS
Ronald Hongsermeier
rwhongser at web.de
Sat Sep 29 21:52:27 CDT 2012
Dear AD,
Thanks for clarifying this issue that I mentioned in a msg to the list,
evidently whilst you were composing this one.
regards,
Ronald aus der Oktoberfestlaune
On 30.09.2012 03:37, Anand Karve wrote:
> Dear Tom,
> our charring kilns are used primarily for light biomass such as dried
> leaves, paper waste, cardboard, threshing floor debris, pine needles,
> straw, etc. This material is too light to be transported to a central
> charring unit. Therefore the user takes the kilns to the place where
> the biomass is lying. A kiln accepts about 6 kg of such waste
> and takes about 15 minutes to char it. Since these are portable units,
> we dont bother to get any useful heat out of them. The material is not
> packed into the barrels, as it would obliterate the air flow. It is
> placed only lightly inside the barrel. If the operator finds that the
> material is obliterating the primary air, we advice him to reduce the
> quantity of material placed in the barrel.
> Yours
> A.D.Karve
>
> On Sat, Sep 29, 2012 at 9:16 PM, Tom Miles <tmiles at trmiles.com
> <mailto:tmiles at trmiles.com>> wrote:
>
> AD, Paul, Kobus and others. Many thanks for the suggestions.
>
> What is the largest practical size (kg fuel/hr, kW) for a single
> TLUD with a clean stack for heat recovery? There must be a limit
> to the air penetration to get a clean gas burn form a natural
> draft stack or even a fan driven TLUD.
>
> Tom
>
> *From:*stoves-bounces at lists.bioenergylists.org
> <mailto:stoves-bounces at lists.bioenergylists.org>
> [mailto:stoves-bounces at lists.bioenergylists.org
> <mailto:stoves-bounces at lists.bioenergylists.org>] *On Behalf Of
> *Anand Karve
> *Sent:* Friday, September 28, 2012 11:22 PM
> *To:* Discussion of biomass cooking stoves
> *Subject:* Re: [Stoves] Fabricated Burn Barrel TLUDS
>
> Dear Tom,
>
> we regularly supply charring kilns made out of used 55 gallon
> drums. The kilns are based on the TLUD principle. The cost of a
> kiln plus an extra barrel for storing the char, is about
> US$100. We have sold more than 100 such kilns in India and have
> also trained a number of persons from India and Africa. These
> kilns are so easy to manufacture, that we ask the trainees to
> photograph and take measurements of our kiln so that they can copy
> the design. In many instances, people buy a kiln from us, because
> they feel that their local fabricator would be better able to copy
> the design from an actual object than from a blue print or a
> photograph.
>
> The advantage of using 55 gallon drums is that used drums are
> available at a relatively low cost, and the kilns are portable.
> Instead of transporting the biomass, one transports the kiln to
> the location where the biomass is available, and brings back only
> the charred material, which weighs only a third as much as the
> biomass.
>
> Yours
>
> A.D.Karve
>
> On Fri, Sep 28, 2012 at 11:42 PM, Tom Miles <tmiles at trmiles.com
> <mailto:tmiles at trmiles.com>> wrote:
>
> Am often asked if there is a burn barrel sized TLUD that is
> commercially fabricated. We’ve seen some great DIY with Doug’s
> Jolly Roger and others. Is anyone fabricating a 55 gal drum sized
> TLUD that can be used for regular biochar production? If so, what
> is the cost and availability?
>
> Thanks
>
> Tom Miles
>
>
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> --
> ***
> Dr. A.D. Karve
> Trustee & Founder President, Appropriate Rural Technology
> Institute (ARTI)
>
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> ***
> Dr. A.D. Karve
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
>
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