Performance evaluation of an improved bioflame stove using coconut (Cocos nucifera L.) rachis as solid fuel
2011
Pardua, S.N. | Elauria, J.C. | Casas, E.V. | Amongo, R.M.C.
Developing countries source majority of its energy for cooking from biomass mainly, wood and charcoal. Performance of the Improved Bioflame stove using coconut rachis as solid fuel at different moisture content and length, and with varying area of air opening of the stove was evaluated through the following indicators: thermal efficiency, specific fuel consumption, and burning rate. Levels of fuel moisture content were 12-14%, 20-22%, and 28-30% in wet basis, fuel lengths were 25 mm, 50 mm, and 75 mm, and areas of air opening were 1875 sq mm, 1225 sq mm, and 575 sq mm. The size of fuel and area of air opening significantly affected the burning rate in the stove. Moisture content significantly affected the specific fuel consumption and thermal efficiency. Coconut rachis can be used as fuel in Improved Bioflame stove and a desirability value of 90% can be attained under the following optional conditions: 12-14% fuel moisture content, 75 mm of length, and 1875 sq mm of the stove's air opening. Verification tests on the optional conditions showed no significant difference on and verified the predicted values.
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