This paper presents a novel approach for the optimization of input parameters on coated aluminum alloy 2024 T351 with Factor analysis method. These Experiments are conducted by varying the input parameters related to surface hardness and surface roughness. In this study, input parameters like coating thickness, substrate temperature and deposition rate are optimized with the considerations of multi responses such as surface hardness and surface roughness. L4 orthogonal array was taken to conduct the experiments. The method shows a good convergence with the experimental and the optimum coating parameters where the maximum surface hardness and the minimum surface finish are obtained.

In the present era there is a great need of green energy. Domestic and industrial requirements depend on the conventional energy sources which are depleting and polluting atmosphere. Many sources of green energy are under research to meet the required demand. In the present experimental work, performance of Mahua bio-diesel is studied and its pollution level is checked by emission test. The test results are compared with that of pure diesel.