A Study on the Effects of Preheating Thevetia Peruviana Biodiesel on the Performance of CI Engine

Year 2024, Volume: 8 Issue: 3, 361 - 368, 30.09.2024

S Jaichandar

https://doi.org/10.30939/ijastech..1454316

Abstract

Biodiesel is becoming increasingly popular as a substitute fuel for compression ignition (CI) engines because of its comparable characteristics to those of diesel and its little environmental impact. The development of diesel engines that run on biodiesel and reduce emissions of pollutants, while also improving thermal efficiency, are key concerns in engine design. The most crucial prerequisites for achieving these are precise and quick air-fuel mixing. However, biodiesel's viscosity is considered a drawback for its application as a substitute fuel for IC engines. Heating can greatly lower the viscosity, which can eliminate the problems caused by excessive viscosity during injection. Hence in this effort, preheated Thevetia Peruviana biodiesel (Methyl Ester) is utilized. The present research aims to examine how preheating biodiesel affects the operation of a direct injection (DI) diesel engine. Engine tests were done on a stationary, single-cylinder, constant speed, naturally aspirated, water-cooled CI engine with a preheated 20% blend of Thevetia Peruviana biodiesel (PH-TPME20 with a conventional jerk type injection system. Engine performance of preheated TPME20 was compared with the unheated 20% blend of TPME and diesel. Preheating reduced the viscosity of the oil, which resulted in a noticeable improvement in engine performance. A considerable drop in emission levels from the engine exhaust gas was noted. The preheating improved combustion characteristics i.e. it lowered the delay period and resulted in quicker release of heat because of improved fuel-air mixing, fuel vaporization, and atomization.

Keywords

Biodiesel, Combustion, Diesel Engine, Emissions, Performance, Preheating

Ethical Statement

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Supporting Institution

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Project Number

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Thanks

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