Performance of a Horizontal-axis Turbine Based on the Direction of Current Flow

J. Ocean Eng. Technol. 2010;24(4):8-12.

Jo Chul-Hee,Park Ro-Sik,Yim Jin-Young,Lee Kang-Hee

Department of Naval Architecture & Ocean Engineering Inha University,School of Naval Architecture & Ocean Engineering Ulasn University,Department of Naval Architecture & Ocean Engineering Inha University,Department of Naval Architecture & Ocean Enginee

수평축 조류발전 로터의 유향변화에 따른 효율 고찰

조철희,박노식,임진영,이강희

인하대학교 조선해양공학과,울산대학교 조선해양공학부,인하대학교 조선해양공학과,인하대학교 조선해양공학과

Keywords: Tidal current power, Rotor, Blade, Computational fluid dynamics(CFD), Renewable energy, Circulation water channel(CWC)

핵심용어: 조류발전, 로터, 블레이드, 전산 유체 역학, 신재생 에너지, 회류수조

Abstract

The use of a tidal-current power system is one source of renewable energy that can minimize the environmental impact of power production and offer many other advantages compared to conventional energy sources. Unlike other energy production approaches, rate of energy production can be precisely predicted and the operational rate is very high. The performance of the rotor, which has a vital role in energy production using tidal currents, is determined by various design factors, and it should be optimized for the specific ocean environment in the field. The horizontal-axis turbine is very sensitive to the direction of flow, and flow direction changes due to rise and fall of the tides. To investigate the performance of the rotor considering the interaction problems with incidence angle of flow, a series of experiments were conducted, and a 3D CFD model was designed and analyzed by ANSYS CFX. The results and findings are summarized in the paper.