PERFORMANCE AND EXHAUST EMISSION CHARACTERISTICS OF A DI ENGINE FUELED WITH NEEM OIL METHYL ESTER (BIODIESEL) AND ITS BLENDS WITH DIESEL
Journal Title: ASIAN JOURNAL OF NATURAL & APPLIED SCIENCES - Year 2012, Vol 1, Issue 4
Abstract
Energy is an essential and vital input for economic activity. Building a strong base of energy resources is a pre-requisite for the sustainable economic and social development of a country. Transport vehicles which is one of key player in development of a country, greatly pollute the environment through emissions such as CO, CO2, NOx,SOx, unburnt or partially burnt HC and particulate emissions. Fossil fuels are the chief contributors to urban air pollution and major source of green house gases (GHGs) and considered to be the prime cause behind the global climate change. Biofuels are renewable, can supplement fossil fuels, reduce GHGs and mitigate their adverse effects on the climate resulting from global warming. Biodiesel (fatty acid methyl esters) is produced by transesterification in which, oil or fat is reacted with a monohydric alcohol in presence of a catalyst. (Schuchardt et al., 1998). This paper presents the steps in biodiesel production and the results of performance and emission analyses carried out in an unmodified diesel engine fueled with neem methyl ester (NME) and its blends with diesel. Engine tests have been conducted to get the comparative measures of brake specific fuel consumption (BSFC), brake specific energy consumption (BSEC) and emissions such as CO2 to evaluate the behaviour of NME and diesel in varying proportions. The results reveal that blends of NME with diesel up to 40% by volume (B40) provide better engine performance (BSFC and BSEC) and improved emission characteristics.
Authors and Affiliations
Sylvester Gadimoh, Mahdi Makoyo
Keywords
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