Abstract
Improved cookcookstoves are cooking devices using biomass such as wood and charcoal. Although existing improved cookcookstoves contribute to reducing wood consumption, this consumption is still considerable, and the smoke produced is a source of many illnesses. It is therefore necessary to work on further improving these "improved cookstoves". The present work concerns the construction of an improved cookstove with primary and secondary sources. The device is essentially made from recycled materials. Boiling tests were carried out, the mass of charcoal consumed recorded and the efficiency of the cookstove calculated. The results obtained from the water boiling test experiments show that the boiling time with the secondary-source cookstove is faster than with the primary-source cookstove alone. The secondary-source cookstove has an overall thermal efficiency of 38%, while the improved single-primary-source cookstove has an overall thermal efficiency of 11%. In terms of total charcoal consumption, the primary-source cookstove consumed 1.19 kg throughout the test, while the secondary-source cookstove consumed just 0.38kg.
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