Design and Performance Test of Savonius Tidal Current Turbine with CWC

doi:2012.26.4.37

J. Ocean Eng. Technol. > Volume 26(4); 2012 > Article

J. Ocean Eng. Technol. 2012;26(4):37-41.
DOI: https://doi.org/10.5574/KSOE.2012.26.4.037

Jo Chul-Hee,Lee Jun-Ho,Rho Yu-Ho,Ko Kwang-Oh,Lee Kang-Hee

Inha University,Inha University,Inha University,Hyundai Engineering and Construction,Inha University

사보니우스형 조류발전 터빈의 설계 및 회류수조 실험을 통한 성능평가

조철희,이준호,노유호,고광오,이강희

인하대학교 조선해양공학과,인하대학교 조선해양공학과,인하대학교 조선해양공학과,현대건설(주) 기술품질개발원,인하대학교 조선해양공학과

Keywords: TCP (Tidal current power), Renewable energy, VAT (Vertical axis turbine), CWC (Circulating water channel), Savonius turbine, CFD (Computational fluid dynamics)

핵심용어: 조류발전, 신재생 에너지, 수직축 터빈, 회류수조, 사보니우스 터빈, 전산유체역학

Abstract

Due to global warming, the need to secure alternative resources has become more important nationally. Because of the very strong current on the west coast, with a tidal range of up to 10 m, there are many suitable sites for the application of TCP (tidal current power) in Korea. In the southwest region, a strong current is created in the narrow channels between the numerous islands. A rotor is an essential component that can convert tidal current energy into rotational energy to generate electricity. The design optimization of a rotor is very important to maximize the power production. The performance of a rotor can be determined using various parameters, including the number of blades, shape, sectional size, diameter, etc. There are many offshore jetties and piers with high current velocities. Thus, a VAT (vertical axis turbine) system, which can generate power regardless of flow direction changes, could be effectively applied to cylindrical structures. A VAT system could give an advantage to a caisson-type breakwater because it allows water to circulate well. This paper introduces a multi-layer vertical axis tidal current power system. A Savonius turbine was designed, and a performance analysis was carried out using CFD. A physical model was also demonstrated in CWC, and the results are compared with CFD.