GAS-L: AIT: Gasifier stove (fwd)

["Prof. S.C. Bhattacharya" <bhatta@ait.ac.th>]

Although I have received some enquiry about our gasifier stove, it is not
clear whether you could watch the video clipping.

Look forward to receiving comments and suggestions reparding further
applications.

S.C. Bhattacharya

_________________________________________________________________

---------- Forwarded message ----------
Date: Mon, 10 Apr 2000 19:21:59 +0700 (GMT+0700)
From: Prof. S.C. Bhattacharya <bhatta@ait.ac.th>
To: stoves@crest.org
Subject: AIT: Gasifier stove


We have developed, within the framework of a regional programme sponsored
by Sida, the following renewable energy devices/systems:

a) A biomass gasifier stove
b) A hybrid solar-biomass powered dryer


The gasifier stove is targeted for cottage industries or institutional
kitchens. It can operate continuously for several hours with one
batchload of sized fuelwood or biomass briquette pieces. It can be
loaded while operating and can be run 24-hours a day if needed. After
initial start-up, it shows no smoking; also initial emission studies
show that the stove produces very little carbon monoxide. The efficiency
of the stove has been measured to be about 27% with a two-pot design. ( We
are now trying to construct the stove using more practical materials
rather the steel and ceramic fiber insulation.

The hybrid dryer is powered by solar energy from a flat plate collector
and a biomass gasifier stove as described above. For controlling
temperature of the drier, the output of the stove is controlled
automatically by using a mechanical thermostatic control device that
does not require any electricity.

We are organizing a demontration of the AIT gasifier stove and hybrid
(alongwith one or two more renewable energy devices)  at the Asian
Institute of Technology on 24 April 2000 (for any one who is ready turns
up on that day). 

List members are invited to visit our website (which is still under
construction):

www.retsasia.ait.ac.th

Images > Phase II> briquetting will lead to a page showing three images.
Click on the lowermost picture to see an enlarged view of the AIT gasifier
stove, a two pot model. 

The Video section of the website has only one video clipping at present -
that of the basic gasifier stove. You can notice that although there is
quite a lot of smoking during start up, there is no visible smoke after
ignition. The stove consists of a vertical hopper which can be easily
loaded when necessary from the top by removing a cover seating on a water
seal. The gasifier section is located at the bottom of the hopper. The gas
from the gasifier part burns in the adjacent vertical combustion chamber
which is provided with holes for combustion air. (For the time being, the
video can be watched only through INTERNET EXPLORER - a NETSCAPE version
will be added later).

Images>Phase II > Drying will lead to a page showing two images. Click on
the lower image to get an enlarged view of the hybrid dryer.

Let me have your comments- through the list or directly.

S.C. Bhattacharya

-------------------------------------------------------------------
S. C. Bhattacharya                  Voice : (66-2) 524 5403 (Off)
Professor                                          524 5913 (Res)
Energy Program
Asian Institute of Technology       Fax   : (66-2) 524 5439      
PO Box 4, Klong Luang                              516 2126 
Pathumthani 12120      	            ICQ   : 18690996                     
Thailand                            e-mail: bhatta@ait.ac.th     
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