Graph Theory Matrix Approach in Selecting Optimal Combination of Operating Parameters

In this paper Graph theory matrix approach is adopted as a decision making tool to find the optimal combination of operating parameters of a diesel engine. It is found that the load of 18A, 270 injection timing and 200 bar pressure forms the optimal combination of operating parameters of the engine under the specified conditions. The result of Graph Theory Matrix Approach is compared and analyzed with other multi-criteria decision-making methods including Simple Additive Weighting (SAW), Weighted Product Method (WPM) and Analytic Hierarchy Process (AHP). These methods provide selection of index for different alternatives considered. Finally, the optimal combination of operating parameters for the diesel engine is selected.