Performance Prediction of Impulse Turbine System in Various Operating Conditions

J. Ocean Eng. Technol. 2007;21(5):9-17.

Hyun Beom-Soo,Moon Jae-Seung,Hong Key-Yong,Hong Seok-Won

Division of Naval Architecture and Ocean Systems Engineering Korea Maritime University,Maritime and Ocean Engineering Research Institute KORDI,Maritime and Ocean Engineering Research Institute KORDI,Maritime and Ocean Engineering Research Institute KO

Keywords: Wave energy, Impulse turbine, Compu fa fional fluid dynamics chart, Quasi-steady, Unsteady, Non-uniformity

Abstract

This paper deals with the design and analysis of a 250kW class impulse turbine for wave energy conversion. Numerical analysis was performed using FLUENT. The size and the performance of a turbine required to provide a certain power can be estimated using a series of performance charts built through the present study. Temporal and spatial variations of flaw fields were also considered and compared with those of uniform inflow. It was concluded that a simple steady-flow analysis using performance charts still provided a practical and useful way to predict the design and performance of turbines.