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Effect of the floating body shape and other composition on the hydrodynamic safety of floating photo-voltaic system

수상 태양광 발전 시스템의 부유체 형상과 구성요소가 수력학적 안전성에 미치는 영향

  • Choi, Ji-Woong (Interdisciplinary Program in Biohealth-machinery convergence engineering, Kangwon National University) ;
  • Lee, Gyu-Han (Interdisciplinary Program in Biohealth-machinery convergence engineering, Kangwon National University) ;
  • Kim, Jae Un (Soleco Co.) ;
  • Heo, Nam Wook (Soleco Co.) ;
  • Cha, Yong Hyun (Soleco Co.) ;
  • Ha, Hojin (Interdisciplinary Program in Biohealth-machinery convergence engineering, Kangwon National University)
  • Received : 2020.12.22
  • Accepted : 2021.03.04
  • Published : 2021.04.30

Abstract

As the photo-voltaic (PV) industry grows, the floating PV has been suggested to resolve current environmental destruction and a lack of installation area. Currently, various floating PV systems have been developed, but there is a lack of studies on how the shape of the floating body and other compositions are affecting structural behavior. In this study, the behavior of the floating PV was investigated at the various length of mooring lines, stiffness of connecting hinges, and size of floating bodies. The shortest mooring lines with the distributed type floating PV showed the least force on the floating body and corresponding motion. A frictionless hinge is safer at the regular and low-height wave, while a stiff hinge is safer at irregular and high-height wave. In addition, due to the bi-axial distribution of the connecting hinge, 45° direction wave was found to be the most dangerous.

Keywords

Acknowledgement

본 연구는 산업통상자원부(MOTIE)와 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구과제입니다.(No. 20173030069040)

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