Experimental investigation on DI diesel engine with fatty acid oil from by-product of vegetable oil refinery

This paper concerns about bio fuel production from renewable biomass resource and its characteristics in diesel engines. In this research work, Free Fatty Acid Oils (FFAO) from oil refineries was considered as biomass renewable resource for the production of biodiesel. These free fatty acid oil are one of the waste by product in edible oil extraction refineries and its potential energy can be easily converted into useful biodiesel in bio fuel sector by the process of transesterification. Due to ethanol catalyst used in transesterification process, Ethyl esters of free fatty acid oils (EEFFAO) were extracted from FFAO. These EEFFAO were blended with diesel in different proportions (20, 40, 60, 80 and pure EEFFAO) to indentify the maximum possibility to use an biodiesel in diesel engines. From the results, possibilities of biofuel from free fatty acid oil can be replaced at 20 percentage in existing fossil fuel depletion. (C) 2018 The Authors. Published by Elsevier B.V. on behalf of Faculty of Engineering, Ain Shams University.