Secondary Air

On a recent trip to Haiti I was finally able to construct my CharBowl(tm) charcoal stove. It uses two nested stainless steel bowls (5 quart and 8 quart (4.7 liters and 7.6 liters))for durability and reflectivity with castable insulating refractory between them to reduce conductive heat losses. It has a 6.5" (16.5cm) dia cast iron grate for durability. It has a secondary air pipe to reduce CO emissions and increase heat output. The secondary air outlet pipe is 3/8" (10 mm) nominal (ID 0.493" 12.5mm; OD 0.675", 17mm) black iron with a Tee fitting on top to keep charcoal from dropping into it. 3/4" NC 10 (19mm 2.5) machine threads were cut over the pipe threads. This allowed the use of a split nut and flat washer inside and outside the bowls to hold the bowls together. The elbow is 3/8" to 1/2" . The inlet pipe is nominal 1/2" iron (ID 0.622" 16mm; OD 0.84", 21mm). The bowls sit on a stock pot base for stability and primary air control. (I couldn't get my hands on the stainless pot I really wanted to use for the base. I'm planning to build another with such a base now that I'm back in the States.)
I hope to get some testing done on my second prototype.
It can be used as the base of a TChar stove.

From GEO CAMP FIRE STOVE

This a low cost simple tin can of less $ 0.5 , with primary and secondary air facility to use for efficient camp fires and also for cooking on it. One need to strive for using the best and efficient stoves, but for the poor, and unavoidable situation / emergencies, such simple tools can be used.
This design is incidental, I have prepared lots of tin cans for Magh CL stove http://e-mcl.blogspot.com/, this winter it had been too cold, during the nights for warmth these tins were used, the efficiency was very high as compared to the open campfires and it was comfortable to use it everywhere. The primary and secondary air helped in complete combustion. Using it for cooking from camp fire mode was also convenient, by just putting on top a concentrator slab and pot rest. During cooking the fuel was fed from the side openings. The wood fed is vertical to slant, this helped in convenient combustion. While cooking was done the radiation of heat was enough for warmth.

MAGH 3G GOOD STOVE

Most adopted stove by poor, tribals and farmers in parts of Andhra Pradesh, India, Already facilitated 1500 stoves and the demand is growing every day.
For more details see links:
http://www.bioenergylists.org/content/magh-3g-stove-all | http://e-magh3g.blogspot.com/


[MAGH OPEN STOVE](http://e-maghopenstove.blogspot.com/) is an institutional fixed woodgas stove. This stove is useful for cooking needs of up to 100. With primary and secondary air controls it is easy to operate and highly efficient. For making this stove, "Magh CM" stoves are used inside. This stove is installed at "Open House", Hyderabad, a place for destitute youth for cooking their own food, shelter, studies, etc. Implemented under the "Good Stoves and Biochar Communities" Project, Implemented by GEO with support of GoodPlanet.org France. Stove design by Dr. N. Sai Bhaskar Reddy. For more details visit http://e-maghopenstove.blogspot.com/

As the United States biomass thermal and power industry continues to expand, new reliable technologies offering higher efficiency solutions must be introduced. The newly introduced EOS series biomass gasification boiler is among the most energy efficient of AESI’s high-performance, low-maintenance biomass energy plants. The EOS series provides thermal outputs ranging from 600,000 BTU/hr to 20 million BTU/hr, and can be staged to provide increased capacity.

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