-To analyse experimental investigates on the Performance and Emission of Single Cylinder Four Stroke Diesel engine under the power of producingan effect of magnetic field. The magnetic field applied along the fuel line immediately before fuel injector. It has been reported that magnetic field helps to improved mixture formation by increasing the atomization process of the spray in the combustion chamber due to increasing the rate of disintegration of the droplets as a result of reduction in the surface tension and viscosity of the fuel [1]. The effect of magnetic field on the engine performance parameters such as specific fuel consumption, break thermal efficiency, exhausts emissions etc. by applying the magnetic field along the fuel line immediately before fuel injector. The strong permanent magnet of strength 2000 gauss is applied to fuel line for magnetic field. At different engine load conditions the experiments are conducted. An exhaust gas analyzer is used to measure the exhaust gas emissions such as CO, CO 2 , HC and NO X . With the application of magnetic field the percentage reduction in fuel consumption is about 8% at higher load, the percentage reduction in HC and NO X is about 30% and 27.7 % respectively. The CO emission gets reduced with the application of magnetic field at higher load. The percentage reduction in CO 2 emissions is reduced about 9.72% at average of all loads with the effect of magnetic field.

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-An experimental study has been carried out for palm seed oil blended with diesel used in a single cylinder diesel engine. Palm seed oil is obtained from the seeds of palm tree. In this study, the effects of parameters` i.e. load, compression ratio and injection pressure are taken as variable for optimization. As the experiment required simultaneously optimization of three parameters with three levels, Taguchi method of optimization is used in this experiment. The results of the Taguchi experiment identify that 16 compression ratio, injection pressure 180 bar and engine load 10kg are optimum parameter setting for highest brake thermal efficiency. Engine performance is mostly influenced by engine load and is least influenced by compression ratio. Confirmation experiment was done using an optimum combination showed that the brake thermal efficiency was found by experiment is closer to the predicted value.

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