Energy and exergy analysis of a CI engine fuelled with polanga oil methyl ester

Abstract

This study extant, energy and exergy analysis of a CI engine running on PB20 (20% polanga biodiesel by volume blended with 80% diesel by volume) mixture of 20% polanga oil methyl ester (POME) with 80% diesel by volume) and diesel. The results of the study show that the heat loss percentage is maximum, and the exhaust loss percentage is minimum for the tested fuels in energy distribution. The percentage of exergy destruction is maximum, and exergy due to heat loss percentage is minimum for the tested fuels during exergy breakdown. PB20 provides 1.4% less energy to the engine than diesel fuel to give the same power. The rate of heat transfer for PB20 is more than that of diesel. Energy loss due to exhaust gas for PB20 is 13% less than that of diesel fuel. The exergy input is about 6–7% higher than the fuel energy input. Exergy destruction of diesel is more than that of PB20 by 3.18%. Exergy loss due to heat loss of PB20 is higher than that of diesel by 1.5%. Overall, the test results indicate that better combustion and efficiencies with less irreversibility are found with biodiesel. Uncertainty analysis and sensitivity analysis are carried out by considering the temperature parameter. The uncertainty lies between the true values. Thus, PB20 can be a partial replacement for diesel as a fuel.