Abstract
Several attempts have been made by researchers across the globe to produce alternate fuels for the diesel in diesel engine. The physio-chemical properties of tamarind seed oil were evaluated experimentally. The present work focuses on the experimental investigation of various tamarind seed methyl ester (TSME) blends (10, 20, and 30%) on compression ignition engine, and the outcomes are analyzed with base fuel. It is observed that TSME20 biodiesel generated improved performance and minimized emissions when compared to the tested blends. Diethyl ether (DEE) is used as an oxygenated fuel additive for the optimum blend; added in 5, 10, and 15% concentration on volume basis. TSME20 with DEE10 has shown better thermal efficiency (36.75%) over diesel (34.13%) and produces lower emissions of CO, HC, and smoke opacity. However, the oxides of nitrogen (NOx) emissions are increased by the addition of DEE. Thus, the present work identifies tamarind as a suitable biofuel source for the diesel engine, and addition of DEE further enhances the characteristics of the diesel engine.
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