Selection of Penstock Material using Multiple Attribute Decision Making Methods in Small Hydropower

R. Kumar, S.K. Singal
Indian Institute of Technology Roorkee, IN

Keywords: hydropower, clean energy, penstock, MADM methods, ranking


Small hydropower (SHP) is a promising source of renewable and clean energy. Selection of proper material for different components of SHP projects in general and penstock in particular is one of the most challenging tasks as penstock contributes substantially in the overall cost of the project. Which has (The optimal material selection from available alternatives in hydropower engineering is a Multiple Attribute Decision Making (MADM) problem. There is no systematic and efficient approach found in the literature for selecting best material and engineers take number of criteria for such selection. In the present study, an effort has been made to apply MADM methods of ranking preferences for solving the material selection problem for penstock in small hydropower installations. The details of all possible alternative materials have been presented and preference ranking criteria has been developed. The results are compared by using different ranking techniques under Multiple Attribute Decision Making (MADM) such as analytic hierarchy process (AHP), technique for order preference by similarity to ideal solution (TOPSIS) and modified TOPSIS. It is seen that the order of preference as obtained by using different techniques are almost in similar order, however the values are different