Production of Fuel Briquettes from Hybrid Waste (Blend of Saw-Dust and Groundnut Shell)

Modestus Okechukwu Okwu

Abstract


There is a great increase in the demand and cost of energy globally. The cost of purchasing petrol fuel is quite high; this has led the rural dwellers to concentrate on firewood as an alternative means of cooking, action which has greatly affected our ecosystem. This research is focused on the production of briquettes using waste sawdust and groundnut shell with starch and condemn oil as binder. These waste materials can be converted into a product that will provide alternative energy to the people rather than constituting environmental problems. The briquettes were produced using a modified briquetting machine developed at the Federal University of Petroleum Resources Engineering workshop. It was observed that the density of the briquette produced increased with blend ratio, amount of binder and compaction time. Optimisation technique predicted briquette density of 278.1 kg/m3 at the optimal level of 8.0, 10% and 50 minutes for the blend, binder and compaction time respectively. Combustion related properties of the briquette at the optimum level were density(277.9 kg/m3), ash content (25.29%), moisture content (4.68 %wt), bulk density (3.03) g/cm3) and burning rate (0.46 g/min) and these values are in accordance with previous research studies. Conclusively, the briquette fuel formed is effective, affordable and can be used as solid fuels to support heating in local and industrialized settings. In addition, establishing a small briquetting firm will serve as an alternative source of energy for cooking, create job opportunities and raise the standard of living of youths.


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