2010•Indian Journal of Science and TechnologyOpen access

Performance analysis of downdraft gasifier for agriwaste biomass materials

K. Sivakumar

Abstract

In this study, combustible gas production from shell biomass materials such as coconut shell, groundnut shell and rice husk was experimentally investigated at 8000 C using gasification technique by a downdraft gasifier. The combustible gases H2, CO, CH4, CO2, and N2 were formed. The calorific value of the producer gas for various shell materials was found. The calorific value of coconut shell is 23.01% higher than ground nut shell and 45.45% higher than rice husk. Based on performance analysis, it is concluded that coconut shell is the best suitable fuel for gasifier compared to the other two biomass shell materials. Keywords: Biomass, gasification, coconut shell, groundnut shell, rice husk, energy from waste.

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Key concepts: Husk, Heat of combustion, Biomass (ecology), Wood gas generator, Shell (structure), Pulp and paper industry, Environmental science, Waste management