Abstract
India is the largest producer of large cardamom in the world with an annual production of 4000 tons, followed by Nepal (2500 tons/year) and Bhutan (1000 tons/year). More than 85% of the production within India is from Sikkim. Firewood is used extensively for curing cardamom in small, traditional curing chambers called “ bhattis”. The traditional curing process is not only inefficient, resulting in an estimated fuelwood wastage of 20 000 tons/year, but also yields a poor quality product. An attempt is made in the present work to analyze the thermal performance of the traditional “ bhattis” through field survey and operational data collection. Based on the experimental observations and analysis, options for improvement such as use of a gasifier are suggested.
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