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Analysis of Helical Turbine Characteristics for Tidal Current Power Plant  

Han, Sang-Hun (Coastal Engineering & Energy Depart. KORDI)
Lee, Kwang-Soo (Coastal Engineering & Energy Depart. KORDI)
Yum, Ki-Dae (Coastal Engineering & Energy Depart. KORDI)
Park, Woo-Sun (Coastal Engineering & Energy Depart. KORDI)
Park, Jin-Soon (Coastal Engineering & Energy Depart. KORDI)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.21, no.4, 2009 , pp. 301-307 More about this Journal
Abstract
The Korean peninsula has a number of coastal sites where the rhythmic rising and lowering of water surface due to tides results in strong tidal current. The kinetic energy of these currents can be efficiently exploited by use of tidal current turbines. This paper investigates the characteristics of helical turbine based on in-field test. The experimental frame was constructed at the Uldolmok narrow channel between Jindo and Haenam and installed the helical turbine of diameter 2.2 m and height 2.5 m. 3-blade turbine had the maximum efficiencies of about 30% in the current velocity range between 1.5 and 2.3 m/s and 6-blade turbine han the maximum efficiencies of about 25%. The efficiency was constant with the current velocity. TSRs of 3-blade and 6 blade turbines were observed as 2.4 and 1.9 respectively.
Keywords
Tidal power plant; Uldolmok narrow channel; helical turbine; efficiency; TSR;
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