Performance and Emission Characteristics of Two Different Bioadditives in Di Diesel Engine

Author(s): R. Senthilkumar and S. Sivaprakasam

Diesel engines are widely employed as the power sources for the land and marine transportation; however, pollution emitted from diesel engine like NOx and smoke, produces a very harmful effect on human health and ecological environment. Researches were carried out to enhance the performance and to reduce the emission. In the present work, biobased additives were used. Two different bioadditives, olyl oleate, (Bioadditive I or BA I) and dihexyl nonediate (Bioadditive II or BA II) were used for experimental purpose. Components in the olyl oleate and dihexyl nonediate were analyzed by using GCMS test. Bioadditives were mixed with diesel in the range of 1 mL, 1.5 mL, 2 mL, 2.5 mL and 3 mL per litre. It is noticed that the bioadditives added diesel enhances the cetane number, reduces the viscosity and calorific value. Experimental works were carried out on Kirloskar TV I diesel engine with constant speed and varying loads by using diesel and bioadditives. Eddy current dynamometer was used as loading device, combustion characteristics were measured using AVL-di-gas analyzer and AVL smoke meter. Bioadditive olyl oleate heat release rate, brake thermal efficiency and NOx are reduced and smoke is increased marginally. In bioadditive dihexyl nonediate heat release rate, brake thermal efficiency and NOx are reduced and smoke is increased. Exhaust gas temperature was reduced for both the bioadditives.

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