Abstract
Research on alternative sources to replace fossil fuels has been started decades ago and still an uninterrupted process. Partial replacement rather than complete is justified with real-time applications. In this research, engine outcomes based on palm oil biodiesel blends are elaborated. The transesterification processed biodiesel from raw palm oil is used to run the engine with a blend proportion of P10D90 and P20D80. From the results obtained, the performance of an engine was degraded with an increase in biodiesel proportion and consumes higher fuel. At lower load diesel and P10D90 have almost equal thermal efficiency whereas at peak load it is found that 39.1% and 37.6% respectively. Apart from CO emissions, there is an increment in CO2, HC, and NOX with the load. NOx emissions are in the margin with diesel for P10D90 at part load. P10D90 shown slightly lower in-cylinder pressure at full load compared to diesel.However, it is seen that P20D80 has given depreciated performance readings, lowered cylinder pressure 55.8 bar, and higher emissions at rated torque. From the experiment, it is noticed that above 10% of the biodiesel blend engine required suitable modifications and accessories to overcome demerits associated with blend characteristics.
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