EXPERIMENTAL STUDY ON EMISSION ANALYSIS OF OXYGENATED FUELS DIMETHYL CARBONATE (DMC) AND DIBUTYL MALEATE (DBM) IN A CI ENGINE

Sandeep Singh, Ashwani Kumar, S. K. Mahla, Gurpreet Singh Batth

Abstract: The biggest challenge in front of energy scientists is to find the alternative to diesel engine fuel due to depletion of fossil fuels and the environmental pollution, which is increasing alarmingly. Oxygenated fuel is one of the viable solutions to the global environmental changes. Dimethyl carbonate (DMC) and Dibutyl Maleate (DBM) are two hopeful fuel additives to reduce emission in diesel engine, due to their high oxygen content, 53.3 and 28 % respectively. This paper presents an experimental study of their effects on the emission characteristics of a diesel engine. DMC and DBM was used with diesel in different blends for all load ranges of the engine viz. at no load, 25%, 50% and 75% of full load and at full load. All tests were conducted at steady state and were set at constant engine speed 1500 RPM. The smoke content reduces by 35% at full load conditions using DMC20 blend, the oxygen content in the emission increases by 39% with DBM15, the decrease in the % of unburnt hydrocarbons and carbon monoxide is respectively 19 and 21. The blends of diesel with 15% DMC and DBM by volume is the best fraction for reduction of smoke and CO emissions without much affecting the performance of the engine. On the basis of the results obtained, these additives are effective method for reducing the emission of diesel engine

Keywords: Dimethyl carbonate; Dibutyl Maleate; Oxygenated fuel, Diesel engine; Engine emission; Exhaust smoke

DOI: https://doi.org/10.15623/ijret.2013.0210022