Modification, Development and Design Experimental Investigation of an Updraft Biomass Gasifier Stove with Sawdust as Fuel

Abstract

This work presents the development of an updraft biomass gasifier stove which has been shown to apply the use of biomass fuels for the production of combustible gases. The updraft biomass gasifier stove designed was modified in order to ease the disposal of ashes, which is subsequently constructed using locally available material resources. The gasifier applies the principles of updraft producer gas flows, whereby the stove utilizes rice husk as it useable fuel. The modified gasifier stove was experimentally tested using rice husk as fuel, which was selected based on its availability as is usually classified as a wasteful product: hence the need for its utilization in order to combat environmental effects. Tests were conducted based on loading capacities of the rice husks: 5, 10, 15 and 18 kg respectively and were evaluated accordingly. The gasifier stove performance depends on these loading capacities and the highest was for the 18 kg value, as it gave the highest time of stable flame production of 150.0 min. Furthermore, the 5 kg recorded the least time of stable flame production, implying that the higher the loading capacity the higher the time of stable flame production

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