Abstract
ABSTRACTThe current work is to investigate the diesel engine performance and combustion characteristics fuelled with Banalities aegyptiaca (BA) biodiesel and compare those with the performance and combustion characteristics of palm biodiesel, sesame biodiesel,rapeseed biodiesel, soybean biodiesel and diesel fuel. In this study, only 10% of each biodiesel (BA10, PALM10, SESAME10, RAPESEED10 and SOYBEAN10) was tested in a diesel engine. The physical properties of all the fuel samples are mentioned and compared with ASTM standards. The test rig consists of a single cylinder, auxiliary water-cooled and computer-based variable compression ratio diesel engine, which was used to evaluate their performance at a measured torque. All biodiesel fuel samples reduce brake power and brake thermal efficiency and increase brake-specific fuel consumption rate than diesel fuel. Combustion characteristics results indicated that the blended fuel samples performed with a significant reduction in terms of cylinder pressure and heat release rate compared with diesel fuel apart from diesel pressure. Among the biodiesel-blended fuel samples, BA10 showed better performance in terms of brake power, brake-specific fuel consumption and brake thermal efficiency and cylinder pressure and heat release rate in terms of combustion characteristics compared with D100.
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