[Stoves] TLUD under plancha Up-date from Gustavo in El Salvador

Tue May 27 13:48:32 CDT 2014

Hi all,
If anyone would like to see Gus' video right now, without waiting go to the
SeaChar FB page: https://www.facebook.com/SeaChar It's right at the top of
the page. This is the beginning of what we have been needing so badly in
Central America for biochar/stove projects: a line of devices with a range
of accessories. Great work Gustavo.
Art

On Tue, May 27, 2014 at 11:00 AM, Paul Anderson <psanders at ilstu.edu> wrote:

>  Dear all, especially Frank and Crispin,
>
> Gustavo has presented a very nice video of the use of a tall TLUD gasifier
> under a DUAL purpose stove frame (frame = stove structure without the heat
> source) that first boiled 5 liters of water in 12 minutes, and then
> converted into a plancha stove with chimney, cooking papusas (related to
> tortillas).   Total cooking time 1 hour 45 minutes on one batch of wood
> chips/chunks (5237 grams) that yielded 1300 g of char.  25% weight yield of
> char.   Probably could have operated an additional 10 minutes with
> pyrolysis fire and a slightly lower percentage yield of char.
>
> You who are on the Biochar and on the Stoves Listservs have not seen this
> 10 minute mp4 video because it is 9.4 MB.   I am sure that Tom and Erin
> will make it available via the Websites and send the link.   And I will try
> to have it soon of     www.drtlud.com
>
> Note:   That is approximately 4000 g of fuel of pyrolytic gases (including
> moisture content that was probably near 15%).   Any ash content (probably
> 1% of the raw fuel) remained in the char.
>
> With the above information, the folks who are strong with number (Crispin,
> Frank, Tom and others) can calculate many important values such as
>
> A.  energy released       [[ I think it is about 10 to 12 MJ per kg of
> gases, so that is about 40 to 48 MJ released, with about 16 to 30 MJ of
> energy remaining in the char.   This relates to a side discussion about the
> value / amount of the energy in the gases vs. in the char when TLUD stoves
> operate to completion of a batch of fuel (so there is no need to separate
> out any un-pyrolyzed fuel).   MANY variables, so the numbers are still
> quite approximate. ]]
>
> B.  average fire power over the time of the batch:   Using 44 MJ released
> in 1.75 hours, that is 25 MJ per hour, which is a 7 kW fire.   That matches
> well with the 12 minutes to boil 5 liters.
>
> Sorry if you have not seen the video yet, but it will be available via
> websites as soon as possible.
>
> Gustavo, WELL DONE for this initial experience.   This all bodes well for
> the future of TLUD thermal power into so many types of plancha stoves.
>
> Paul
>
> Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
> Email:  psanders at ilstu.edu
> Skype: paultlud      Phone: +1-309-452-7072
> Website:  www.drtlud.com
>
> On 5/27/2014 9:05 AM, Inversiones Falcon wrote:
>
>  Dear Paul I have been working on our project, but until now I found the
> way to send you a good video, we can adjust any TLUD to all our frames
> (even desing new model for street vendors) I will like to tried to make an
> oven but at this moment I`m short of budget fot something like this, pleas
> send comments on this video
>
>  Best Regar
>
>  Gus
>
>
>    On Tuesday, May 27, 2014 7:22 AM, Paul Anderson <psanders at ilstu.edu><psanders at ilstu.edu>wrote:
>
>
>   Harry
>
>   I have added Art Donnelly to the list of recipients.   He has
> additional experience about the stove structures (also called frames, and I
> am liking that term more each time I think of it) under which we will place
> the TLUDs as heat sources.   And he knows Gustavo and what I am trying to
> establish.
>
> I also add Jon and Flip Anderson, who have extensive Haiti experience with
> stoves.
>
> Basic terminology of cookstoves:  The frame holds the pot, and is separate
> from the source of heat.   Together they constitute a complete stove.
> The frame is essentially the "stove structure" excluding the parts that
> create the heat.
>
> If this needs further clarification, then it is the "independent frame" of
> the stove.   THIS is important in TLUD stoves, and is generally disregarded
> in many other stoves where the pot holding features are structurally
> related to the heat-making features, as in most Rocket stoves and plancha
> stoves that have mud and clay and generally heavy stove bodies that do not
> have pot-holding frames that are independent of the heat making features.
>
> Regarding the TLUD stoves, the frame therefore can be everything that is
> above the fuel chamber.    Even the concentrator lid/disk can be attached
> to the frame.   Certainly the riser (that so greatly influences the natural
> draft) can be part of the frame, and has be called the "coupler."  An
> excellent example of this is the tripod frame with coupler of the Champion
> TLUD stove that is made by Servals in India.   (If you are not familiar
> with this, be sure to see it soon at many places, including
> www.servals.in   )
>
> The frame not only holds the pot, it can also channel the heat (hot
> emissions) to and around the pot, with great improvement of the heat
> transfer (thermal efficiency).
>
> I am working on this as a document.   Now we need to assist Harry to be
> able to make an appropriate frame for Haiti.   Low cost, local materials.
>
> Paul
>
> Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
> Email:  psanders at ilstu.edu
> Skype: paultlud      Phone: +1-309-452-7072
> Website:  www.drtlud.com
>
> On 5/26/2014 6:32 AM, Harry Ha wrote:
>
> *I will make frames to fit your stoves in. HH*
>
>  ------------------------------
> From: harryha at sympatico.ca
> To: psanders at ilstu.edu; invfalcones53 at yahoo.com; ameripham at click1.net;
> peter.schild.mittelamerika at gmail.com; solarbobky at yahoo.com
> Subject: RE: Up-date
> Date: Sun, 25 May 2014 22:33:47 -0400
>
> Paul and Everyone,
>
>  The first two pictures show three metal gratings 14", 10" and 11" in
> square sizes. The last two pictures are free standing gratings, double 13"
> squares 19" high and 13' sqaure 13" high.
>
>  Harry
>
>  ------------------------------
> From: harryha at sympatico.ca
> To: psanders at ilstu.edu; invfalcones53 at yahoo.com; ameripham at click1.net;
> peter.schild.mittelamerika at gmail.com; solarbobky at yahoo.com
> Subject: RE: Up-date
> Date: Tue, 20 May 2014 05:27:57 -0400
>
> Paul,
>
>  You can take free-standing stoves, institutional/commercial and domestic
> types, as I described, and fit your stoves in the frames without charcoal
> holding grilles on top. I will make frame here at a local metal shop I am
> working with.
>
>  Harry
>
>  ------------------------------
> From: harryha at sympatico.ca
> To: psanders at ilstu.edu; invfalcones53 at yahoo.com; ameripham at click1.net;
> peter.schild.mittelamerika at gmail.com; solarbobky at yahoo.com
> Subject: RE: Up-date
> Date: Mon, 19 May 2014 20:39:54 -0400
>
> Dear Paul and Everybody,
>
>  Typical street food vendors's stove is *18 in. x 18 in. x 24 in. high *made
> with half inch concrete reinforcing steel bars. It comes in single, double
> and triple in line with 1 in. spacing between. The stoves take 24 in.
> aluminium pot to cook rice and various topping stews on cooked rice.
> Cooking charcoal burns on concave metal grilles about 7 in. deep in the
> middle.
>
>  Domestic stove has no standing frame. Charcoal burns on rectangular
> concave metal grilles with their sizes ranging *10 to 13 inches *that sit
> on concrete opening in corresponding sizes. Ash is accumulated in *16 to
> 18 in. deep pits. *Your domestic stoves can be placed in the pit with
> traditional metal grille on top. This case is for build in kitchen that has
> concrete cooking counter. But many households have open kitchen with no
> cooking counter. In this case the stoves are similar to commercial ones in
> smaller scale.
>
>  Regards,
>
>  Harry
> 509 4741 0820 Haiti
> harryha at sympatico.ca
> 17 Ruelle DeJean, Gonaives, Haiti
>
>  ------------------------------
> Date: Sun, 18 May 2014 22:53:11 -0500
> From: psanders at ilstu.edu
> To: harryha at sympatico.ca; invfalcones53 at yahoo.com; ameripham at click1.net;
> peter.schild.mittelamerika at gmail.com; solarbobky at yahoo.com
> Subject: Fwd: Up-date
>
> Dear Harry, Thong and Gustavo and Peter and Bob,
>
> See the photo and also Harry's message below, then I have my message to
> all of you.
>
> Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
> Email:  psanders at ilstu.edu
> Skype: paultlud      Phone: +1-309-452-7072
> Website:  www.drtlud.com
>
>
>
> -------- Original Message --------  Subject: Up-date  Date: Sun, 18 May
> 2014 21:01:51 -0400  From: Harry Ha <harryha at sympatico.ca><harryha at sympatico.ca>  To:
> Paul Anderson <psanders at ilstu.edu> <psanders at ilstu.edu>
>
>  Paul
>
>  The picture is street side cooking stoves that is every where in towns
> and cities in Haiti. The Pots are 2 feet in diameter. Can your
> institutional stove can adapt to that using the same stand framing?
>
>  When Thong comes on 17th next month, I would like to see his
> demonstration.
>
>  Harry
> *************************
> New message from Paul
>
> We need the measurements of the cooking stand and the pots that are used.
>   Especially the height of the cooking stand.
>
> Gustavo in El Salvador  will be the manufacturer / source of the TLUD
> gasifier and any other things that need to be sent to Haiti.   We will need
> to discuss before anything is finalized and made.   They do not make
> tortillas in Haiti, so Gustavo's plancha stove is not appropriate.   But we
> will make other components that can fit into the Haiti situation.
>
> Thong, what are your travel dates in July?   And can you and Harry get
> together?
>
> Paul
>
>
>
>
>
>
>
>

-- 
Art Donnelly
President SeaChar.Org
US Director, The Farm Stove Project
Proyecto Estufa Finca
<http://email2.globalgiving.org/wf/click?c=1Oy%2FmZbgIyjS5WI580KXwShvfKBcF2eaJvtN7Pi6p7Jl%2FiR4938EMMCBwY%2FuYALeA%2BQYUWN4RpvnxBsBC7e2%2BGIHcONTozBmvsUU5LTL%2FTNk4Q3vxE%2BKdXTV2cxIsFplSPh%2F9nMG3bQMQf4bz9ZK9SHMy46Z8OPLAtMAnPG9SKkPuLCWvofBTLC%2BImqax%2BZTkkF2RvDri5UdgH19NHjHOBj5WMUrS4L62Z2xxUJbBsJdDUOfeifheNFXH546Xm0yul4P2stm%2FTUOJxYnI0nFjXEaYfzxDSc%2FwgqVkR1t0USDHk30%2Fgt9UpDpyzLj37HWtnNQ0q8Jh1gZCkB4Y1Fgbg394gYFkyNqFN4MchxO2Js%3D&rp=wrhiOr2wAxUyDMDlMSqbOkKa0FpPoiCSHffb%2ByfHGClRxIFjEIrUDwAF%2BFD%2BpAPuvam9BDwvSMcadhFv7aFwKoyAXYrFk00%2B92xPIeMHXaTDJ3x0VIj6ZYwjm1win65o&up=YDTqBOjidbCUo%2Far1oAtZjp5ji73zPEvmoO14mevuXzIDUdb6Ac9W13SPOXmzL5NflZkH0HxLp0v4dT9UwEHDV0wSZ1qusv09bIKkUliWs4%3D&u=LHuflw_1TAib_lgCu2JvQw%2Fh0>
"SeaChar.Org...positive tools for carbon negative living"
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