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Application of Graph Theory Matrix Approach to Select Optimal Combination of Operating Parameters on Diesel Engine to Reduce Emissions

N. K. Geetha and P. Sekar

The objective of this paper is to adopt graph theory matrix approach to find the optimal combination of operating parameters on a diesel engine. Based on the engine performance parameters like brake power, brake specific fuel consumption and brake thermal efficiency, the combination of 18A load, 270bTDC injection timing and 200 bar Injection pressure gives the best result. Based on the emission parameters like nitric oxide, hydro carbon, carbon monoxide, carbon dioxide and oxygen, the combination of 9A load, 190bTDC injection timing and 240 bar injection pressure gives the best result out of the engine.