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Diesel Engine Characteristics

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CHAPTER 5
PERFORMANCE AND EMISSION CHARACTERISTICS OF A DIRECT INJECTION DIESEL ENGINE FUELLED WITH METHYL ESTER PRODUCED FROM WASTE ANIMAL FAT

5.1 INTRODUCTION
The commonly used power producing devices in the automobiles are direct injection diesel engines. The diesel engines are excellent fuel economy over spark ignition and indirect injection engines. In this direction considerable research has been done to use biodiesel as an alternative fuel in the unmodified diesel engine.
5.2 Experimental set up
The performance and emission characteristics experimental were carried out by using single cylinder direct injection computerized diesel engine running under constant speed and variables. Table 5.1 shows engine specifications. Figure5.1 shows a schematic diagram of experimental set up. It is fitted with diesel engine, fuel tank. It has a data acquisition system, a computer, an operation panel and an exhaust gas analyzer.
5.3 Experimental procedure
The waste animal fat methyl esters produced from waste animal fat and its blends with diesel oil. The experimental work carried out by using pure diesel oil, B20, B40, B60, B80 and B100 at different types of engine load (0.4kg, 4kg, 6kg, 8kg and 10kg) test engine carried out by using eddy current dynamometer. Before running …show more content…

Moreover, HC emission also rises with lean mixture due incomplete combustion. Figure5.7 shows that effect of load on hydrocarbon emission run with diesel engine on B20, B40, B60, B80, B100and diesel oil. Hydrocarbon emission waste animal fat methyl ester (B100) very lower than diesel oil. Lower hydrocarbons emission (1ppm) was obtained for B100 at 0.4kg load which is 90% lower than conventional diesel oil at the same load. Higher hydrocarbons emission (15ppm) was obtained for B20 at 10kg load which is31.81% lowers than diesel oil at same load. This is due presence of maximum oxygen content in

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