Effect of fuel preheating on performance, emission and combustion characteristics of a diesel engine fuelled with Vateria indica methyl ester blends at various loads
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Date
2022
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Academic Press
Abstract
The present study examines the preheated (95 °C) and unheated (35 °C) Vateria indica methyl ester (VIME) blends by studying the engine performance, combustion, and emission characteristics at various loads. A single-cylinder, TV1 Kirloskar direct injection diesel engine is used to carry out the tests. Biodiesel produced from Dhupa fat through the transesterification process is used as a renewable fuel in a diesel engine. In this work, diesel (B0), VIME (B100), and two binary blends (B30 and B50) are used. VIME has a higher viscosity, higher density, and lower calorific value than diesel, resulting in lesser brake thermal efficiency (BTE) and higher brake specific energy consumption (BSEC). Due to high viscosity of the biodiesel, preheating of fuel is done before injecting into cylinder. Preheating reduces the viscosity, and enhances the atomization and vaporization of fuel, resulting in improved engine performance. For a given blend of VIME biodiesel and diesel, the preheated blend has better BTE, decreased BSEC and lesser CO and HC emissions, with a slight increment in NO<inf>X</inf> emission compared to the unheated blend. The preheated B30 blend has a BTE value of 30.3% which is close to the BTE value of 30.1% of unheated diesel at 100% load condition. CO, HC, and soot emissions are decreased by 16.2%, 34.4%, and 16.5%, respectively, for preheated B100 fuel compared to unheated B100, at full load. © 2021 Elsevier Ltd
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Keywords
biodiesel, carbon monoxide, diacylglycerol, ester, hydrocarbon, methyl group, nitrogen oxide, renewable fuel, unclassified drug, vateria indica methyl ester, biofuel, gasoline, chemical reaction, dicotyledon, diesel, diesel engine, performance assessment, phytochemistry, soot, temperature effect, Article, carbon footprint, combustion, comparative study, controlled study, energy consumption, esterification, evaporation, heat, nebulization, pressure, reaction temperature, reaction time, smoke, transesterification, vaporization, viscosity, Dipterocarpaceae, exhaust gas, Biofuels, Carbon Monoxide, Esters, Gasoline, Vehicle Emissions
Citation
Journal of Environmental Management, 2022, 304, , pp. -