Experimental Study on 100% Replacement of Fossil Fuel by the Biofuels

Abstract

In present scenario, India is facing severe problems of energy crisis due depletion of fossil fuels which made price hike in the global market, now it is time to switch over the alternate sources of energy to meet and match with present and future energy demands of our nation. Biofuels like biogas and biodiesel are the better alternative fuels; they are renewable, cost effective and environment friendly. As India is an agriculture based country a lot of sources are available for biomass to obtain gaseous fuel like biogas. In this tropical country karanja tree is also found in plenty.Karanja oil Biodiesel can be obtained from transesterification process of the karanja seed oil, which is non-edible oil; hence it can be used in power generation. Present study was carried on 100% replacement of fossil fuel by the biofuel which can save import expenditure and improve our GDP. In this regard, single cylinder four stroke diesel engine was modified to run in dual fuel mode (Biogas & Biodiesel) and analysed the performance parameters like FC, BSFC, BTE and emission parameters like CO2,HC and found comparable values of such parameter with traditional diesel fuel. The results indicated that under dual fuel mode i.e. biodiesel-biogas mixture has lower brake thermal efficiency than that of the mono fuel mode run on neat biodiesel. An overall evaluation of the results indicated that the biogas and biodiesel dual fuel operation could be substituted in place of diesel fuel in power generation in rural areas where there is great availability of the biofuels. Possibly, it will work satisfactorily under long term operation of engine in power generation without any major troubles.