수치 해석 및 모형실험을 이용한 수중 일점 계류식 조류발전 장치의 운동 성능 고찰

• Published in: 한국수소 및 신에너지학회 논문집 Vol. 28; no. 2; pp. 212 - 219
• Main Authors: 조철희(Chul Hee Jo), 박홍재(Hong Jae Park), 조봉근(Bong Kun Cho), 김명주(Myeong Joo Kim)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 2017
• Subjects: 기계공학; Single point mooring; 계류 설계; Tidal Current Power; Mooring design; 일점계류; Model test; 모형시험; 조류발전
• ISSN: 1738-7264; 2288-7407
• DOI: 10.7316/KHNES.2017.28.2.212

As an environmental pollution and global warming due to an excessive carbon emission are intensified, the importance of renewable energy is in rise today. TCP (Tidal Current Power), one of the renewable energy sources, generates electricity by converting kinetic energy of current into rotational energy of turbine. Also the TCP has a great advantages of predictability and reliability. Because the generating power is proportional to cubic of stream velocity, amplifying current speed by applying duct is highly effective to increase the generating power. SPM (Single Point Mooring) can be applied for the weather vane with various current direction and also augments generating power of the system. In addition, simple installation and retrieval could be a merit of SPM system. By combining duct and SPM, TCP system for relatively low-speed-current and shallow water region can be feasible and economical. In this study, single point moored duct-type TCP system was designed and the motion of submerged structure was investigated in both numerical and experimental method. DNV wadam V4.8-1 and OrcaFlex 10.0a were used for the frequency and time domain motion analysis of system respectively. Duct model scaled by 0.05 of Froude conformity ratio and CWC (Circulate Water Channel) are used for experiment.