Potential of Electricity Generation from Rice Husk-A Case Study of Rice Mill

T. A. MEMON, K. HARIJAN, M. I. SOOMRO, S. MEGHWAR, G. D. VALASAI, H. KHOHARO

Abstract


Energy crisis is a major problem in Pakistan now a days, in order to overcome this energy crisis an alternate renewable source must be exploited. Biomass has become an alternate source of energy for developing countries, where the economy is dependent on agriculture and forestry. Rice husk (RH) that is being generated in the mill can be utilized efficiently through fluidized bed (FB) technology to meet the energy demand and increase the production capacity of the mill, this will results in cost savings, greenhouse gases reduction and environmentally sustainable supply of electricity. The purpose of this study is to access resource potential of RH generated in the rice mill and to carryout technical and economic evaluation of RH based 1 MW fluidized bed combustion (FBC) power plant. In order to quantify the RH generated in the mill data regarding the potential of RH was collected from mill personnel and from the literature. It is estimated that through the FBC power plant, annual electricity of 5360 MWh can be generated with RH fuel consumption of 6968 tons; cost of generating electricity through FBC is approximately Rs. 4/kWh. Hence it can be concluded that FBC technology is more economically feasible than conventional systems for the power generation

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