Abstract
A comparison study of diesel engine single cylinder of 3.5 kW performance was analysed by means of energy and exergy analysis fueled by diesel, KB20 (80% diesel by volume with 20% karanja biodiesel) and PB20 (80% diesel with 20% polanga biodiesel) individually. The analysis was supported with theoretical or stoichiometric combustion of the fuel and on per mole of fuel source. The diesel fuel energy and exergy is higher than the tested biodiesel. However, the tested biodiesel produces a higher rate of heat loss energy and heat loss exergy loss than diesel. Less percentage of exhaust loss energy and higher percentage of exhaust loss exergy of tested biodiesel than diesel. Higher percentage of exergy destruction is observed for diesel than tested biodiesel. Regarding efficiency related to brake thermal, combustion and exergetic tested biodiesel performed well. It was observed that maximum loss occurred with exergy destruction while the minimum loss occurred with heat loss exergy. The exergy output of the tested fuels lies between 34 percentages to 35 percentages. A relative study indicates that the performance related to the energetic and exergetic bear a resemblance to common fossil fuel.
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