수직축 조류 터빈 발전효율 평가를 위한 유동-터빈 연동 CFD 해석 (I) KCI

Title
수직축 조류 터빈 발전효율 평가를 위한 유동-터빈 연동 CFD 해석 (I)
Alternative Title
Flow-Turbine Interaction CFD Analysis for Performance Evaluation of Vertical Axis Tidal Current Turbines (I)
Author(s)
이진학; 오상호; 박진순; 이광수; 이상열
KIOST Author(s)
Yi, Jin Hak(이진학)
Publication Year
2013-06
Abstract
In this study, numerical analyses that considered the dynamic interaction effects between the flow and a turbine were carried out to investigate the power output performance of an H‐type Darrieus turbine rotor, which is one of the representative lifting‐type vertical‐axis tidal‐current turbines. For this purpose, a commercial CFD code, Star‐CCM+, was utilized for an example three‐bladed turbine with a rotor diameter of 3.5 m, a solidity of 0.13, and the blade shape of an NACA0020 airfoil, and the optimal tip speed ratio (TSR) and corresponding maximum power coefficient were evaluated through exhaustive simulations with different sets of flow speed and external torque conditions. The optimal TSR and maximum power coefficient were found to be approximately 1.84 and 48%, respectively. The torque and angular velocity pulsations were also investigated, and it was found that the pulsation ratios for the torque and angular velocity were gradually increased and decreased with an increase in TSR, respectively.
ISSN
1225-0767
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3169
Bibliographic Citation
한국해양공학회지, v.27, no.3, pp.67 - 72, 2013
Publisher
한국해양공학회
Keywords
Flow-turbine interaction analysis; 유동-터빈 연동 해석; Computational fluid dynamics (CFD); 전산유체역학; Vertical axistidal current turbine; 수직축 조류 터빈; 다리우스 터빈; Darrieus turbine
Type
Article
Language
Korean
Publisher
한국해양공학회
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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