Evaluation of vertical axis turbine characteristics for tidal current power plant based on in situ experiment SCIE SCOPUS

Cited 21 time in WEB OF SCIENCE Cited 23 time in Scopus
Title
Evaluation of vertical axis turbine characteristics for tidal current power plant based on in situ experiment
Author(s)
Han, Sang-Hun; Park, Jin-Soon; Lee, Kwang-Soo; Park, Woo-Sun; Yi, Jin-Hak
KIOST Author(s)
Park, Woo Sun(박우선)Yi, Jin Hak(이진학)
Publication Year
2013-06-01
Abstract
The Korean peninsula has a number of coastal sites where the rhythmic rising and lowering of the water surface owing to tides results in a strong tidal current. The kinetic energy of these currents can be efficiently exploited by using tidal current turbines. This study investigated the characteristics of a vertical axis turbine based on an in-field test. After 2.2 and 3.0 m diameter helical turbines were installed in a fast narrow channel on the Korean coastline, the current velocity, torque, rotational speed, power, and other factors were measured. The efficiency of the 2.2 m diameter helical turbine was about 30% at a current velocity of 1.5-1.9 m/s, and the 3.0 m diameter turbine had an efficiency of 33% at a current velocity of 2.0-3.4 m/s. The average tip speed ratio (TSR) of the 2.2 m diameter turbine was 2.41; the 3.0 m diameter turbine showed a similar TSR of 2.39. The optimum TSR for helical turbines more than 2.2 m in diameter seems to be 2.4. The efficiency of the entire power generating system was nearly constant at current velocities higher than 2.2 m/s. Thus, a power generating system using tidal currents can produce electric power stably over appropriate current velocity. (C) 2013 Elsevier Ltd. All rights reserved.
ISSN
0029-8018
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3165
DOI
10.1016/j.oceaneng.2013.03.005
Bibliographic Citation
OCEAN ENGINEERING, v.65, pp.83 - 89, 2013
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Keywords
Tidal power plant; Vertical axis turbine; Helical turbine; Turbine efficiency; Tip speed ratio
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

Ocean Energy-Tidal Current Energy Converter System,Infrastructure Management-Structural Health Monitoring,Offshore Wind,해양에너지-조류발전시스템,시설물 유지관리-구조건전성 평가,해상풍력

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