I have a TLud I bought from Tom in 2007, you light it at the top, it burns down, the air is pumped up from the bottom, so oxygen starved air goes up to the charcoal, producing mainly carbon monoxide (small amount hydrogen) as the flammable "wood gas" - then usually it is used for cooking directly but sometimes it is piped off to supply a stove elsewhere, - or run a car, although too much tar to run directly.
The Tlud is not a mainly charcoal producing stove that I have seen, perhaps 10% at best..
Geoff.
Dear friends
Thanks a lot for your imputs and sorry for my late answer, (I had an emergency to take my brother to the hospital but he is much better now). Last night I had the first online meeting with the students explaining general matters about biochar and it's process and the aim of our work. I will send the your imputs today, thanks a lot!
Luis
Luis, List and Kirk, cc Dr. Perez and Kevin
1. Somehow I lost the original of Kirk Harris’ message in this thread (today?) where he said:
Luis,
Your request led me to create the attached flow chart which shows an overall view of the process of interested. It is intended to be a simple outline of the overall process, and is subject to corrections or variations from others on the list. It may help to give an overall view of where your work fits into the field of pyrolysis of biomass.
Respectfully,
Kirk H.
2. Kirk has obtained the most impressive low emissions from TLUD stoves. He is also the only one I know who has a working TLUD for plancha type stoves.. So I urge you and the four students making contact with Kirk . Like quite a few on this list, his will be pro bono assistance.
3. Kirk: Can you agree with my “red” additions to your nice summary drawing? Anyone disagree?
4. This message mainly to hope that we can hear a lot more about plancha TLUDs. Or maybe there is a good plancha TLUD literature already?
5. For all Central and South American present users of 3-stone fires, I urge a serious look at the “Sun24 3-stone hole stove” developed by Kevin McLean. Three-stone fires are being used not only because they are zero cost - but because they can support big pots. Most TLUDs can’t match that performance at the needed cost. Another good research option for the “Luis team” and the “Perez team”?.
Ron
Hello friends:
I am about to start an thesis work with 4 mechanical engineering graduating engineers from a local university on ENERGY USE from biochar small reactors in El Salvador. Now that our national agriculture school is promoting the use and manufacture of BC with small units we intend to prove the use of the energy and test to find the most adecuate models for our agricultors.
If any one can give advises please do so! remember this is for poor countries, some similar work samples would be ver useful
