“DEVELOPMENT AND PERFORMANCE ANALYSIS OF GASIFIER FOR BIOMASS”

Mechanical Engineering

Energy production, waste disposal, and the minimization of pollution are key problems that must be addressed for sustainable cities of the future. High agricultural productivities and subsequently the growth of green revolution has been made possible only by large amount of energy inputs, especially those from fossil fuels. Emissions from solid fuel combustion to indoor, regional and global air emission inventory largely depend on fuel types, combustion devices and other factors. Due to improper design of combustion zone and low thermal efficiency, it emits gaseous pollutants like CO, particulate matter, etc. In our project, we modified combustion chamber for complete combustion of biomass fuel. By supplying necessary amount of oxygen in combustion chamber with help of primary and secondary fans, great difference occurred in normal and modified working. From performance test results, it was found that gasifier cook-stove shows higher heat transfer efficiency. This indicates a better performance when compared with the average thermal efficiency value chulha. The gasifier gives 21.89 % of efficiency at full load while on medium load efficiency is 32.41 %. It improves the energy efficiency of biomass clean burning, which potentially offers a highly cost-effective alternative for easing the burden of buying fuel by urban poor as well as rural population.

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