Numerical prediction of the performance of a micro class pelton turbine

Abstract

Pelton turbine is the most efficient impulse turbine and its performance keeps improving since its invention. The design of the Pelton turbine mostly based on extensive experiment which is expensive and very time consuming. Hence, commercial turbine know-how is secured due to high competitive market. A reference model of the turbine is vital for researchers who are studying the Pelton turbine. In this study, design and numerical analysis of 5kW Pelton turbine is presented. The turbine geometry is designed according to existing literature and Ansys CFX was selected for numerical tool. The numerical simulation was performed under the several rotational speed in order to specify the speed coefficient specification of the turbine.