3-27. DEVELOPMENT OF BIOMASS CHAR STOVE FOR DOMESTIC UTILIZATION

概要

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Charcoal utilization as a domestic fuel can only be achieved if a clean charcoal feeding and combustion stove is designed. In this study, author has tried to develop a mechanism for feeding powdered charcoal by partially fluidizing the charcoal bed and charcoal combustion in a prototype charcoal stove. Various factors affecting the charcoal feed rate were studied. It was observed that in the partially fluidized zone, charcoal flow rate varied linearly with the fluidizing air flow, irrespective of charcoal size. Shape and size of charcoal container had no effect on charcoal flow rate. Charcoal bed height and fluidizing air moisture content did not affect the charcoal flow rate. However, cessation of charcoal flow was observed on increasing the moisture content of charcoal. A temporary cessation of charcoal flow was also observed on continued feeding due to bridge formation in the bed during powder feeding which could be suppressed by vibrating the bed and introducing pulse air. Combustion tests were done on a prototype charcoal stove and the improvement of the combustion chamber is currently being pursued.
一般社団法人日本エネルギー学会の論文
2005-08-04