Synergetic Approach for the Selection of a Furnace Fuel in Production of Ferrous Castings in an Eco-friendly Environment

The problem of selection of fuel for the production of castings in most economical way and inan eco-friendly environment is of great relevance in the present time. Traditionally, suchproblems were addressed using conventional techniques of Multi Criteria Decision Making,such as, Analytical Hierarchy Process (AHP). This paper proposes a methodology for solvingcommon problem of fuel selection by modifying conventional AHP by incorporating ‘fuzzyLinguistic variables’ in place of numbers. The methodology will create a fuzzy interface forconversion of input and output variables into suitable linguistic variables. Further, employingthe fuzzification process by assigning the linguistic variables to numerical values of themembership functions and formulating suitable decision rules, the procedure culminates intothe defuzzification process for converting fuzzy output into crisp value and obtaining the resultin the form of fuzzy scores. The model is explained using a numerical example and alsopresents a validation of the proposed methodology.