Cooking Stove Improvements: Design for Remote High Altitude Areas Dolpa Region Nepal, Sjoerd Nienhuys April 2005

Metal and mud cooking stoves are analysed in Dolpa, a remote high altitude district in Nepal (over 2000m) where poor firewood efficiency of cooking stoves has been observed whilst the area is already largely deforested. Current metal or mud stoves have the air-intake above the firewood, lowering gas temperatures and causing incomplete combustion. More than 20 improvement options are presented in a table. These lead to higher burning temperatures, reduced firewood consumption and lesser soot development. Modifications have been made to lower manufacturing costs. The paper briefly explains the principles of the improvements and provides detailed sketches of the solutions. Improved cooking efficiency requires chopping of the firewood into
small pieces, but the additional time spent is balanced against the considerably less time spent in the collection of firewood. The prototype stove has been field-tested and modified several times to produce a model that is easy to manufacture and is acceptable to the villagers.

Information is based on the author’s personal experience and technical information from the stoves discussion group at

Cambodia Fuelwood Saving Project (CFSP), GERES, (France) Claude Tournellec May 2005

Ethanol Stove:Development of Stove running on low ethanol concentration, June 2005 Anil Rajvanshi Nimbkar Agricultural Research Institute, Phaltan, Maharashtra, India

Only 17.5 % of all Indian homes use LPG as their primary cooking fuel, with 90 % of rural households dependent on some form of biomass. To improve the quality of life of such a large number of people, it is imperative that clean and renewable alternatives are provided for cooking. This paper presents one such. An ethanol stove running on 50 % ethanol-water mixture has been developed at Nimbkar Agricultural Research Institute (NARI). The stove allows easy flame regu-lation and gives an output similar to the conventionally-used LPG and kerosene stoves. Field tests conducted on the stove show that it is safe to use and very suitable for a typical rural household. In addition, the cost of using the ethanol stove is comparable to those of the conventional liquid fuel alternatives. However, for this stove to be a viable alternative certain policy issues have to be tackled. These have been suggested at the end of this paper.


File attachments: 

Ashden Health and Welfare Award: Nepal, Biogas Sector Partnership installs 124,000 household biogas plants, Sundar Bajgain, July 2005

School cookstoves running on crop waste in North India
Ashden Cimate Care Award: NISHANT Bioenergy Consultancy, Chandigarh, Ramesh Kumar Nibhoria, July 2005

Biomass Fuel Gas Cooker (China gasifier stove Model JXQ-10A ) , Wattpower, Kevin Chisholm, Canada, July 2005a href="">

Tribal Waste Energy Recovery Plant "TWERP" gasifying water heater, Charles MacArthur, inventor, Tralchemy July 2005

ARECOP Newsletter June/July 2005 (pdf), Asia Regional Cookstove Program, July 2005


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