Simplified formulation of coupled system between moored ship and elastic pipe for OTEC plantship

Ryoya Hisamatsu, Tomoaki Utsunomiya

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

1 被引用数 (Scopus)

抄録

A commercial-scale Ocean Thermal Energy Conversion (OTEC) floating platform will require a large diameter Cold Water Pipe (CWP) to be attached. Several studies have analyzed the dynamic behavior of the coupled system between the floating platform and the CWP. However, the characteristic of the coupled behavior has not yet been fully understood. This study aims to formulate the coupled system of an OTEC floating plant and simplify the formula to clarify the characteristic of the coupled behavior. The formula is suitable for validation of the numerical simulation results and the preliminary design of an OTEC plant. In the first section of this paper, we derive the equation of motion and equilibrium of the direct moored floating body and an elastic pipe hanged off from the floating body. In the second section, we verify the formula for a 100MW OTEC plantship with 800m length and 12m diameter CWP. The Response Amplitude Operator (RAO) is calculated by solving the equation of motion and statistics responses in 3 hours are compared with a numerical simulation by OrcaFlex. As the result of the comparison, we observed that the present formula is applicable in the early stage of the practical design loop.

本文言語英語
ホスト出版物のタイトルOcean Space Utilization
出版社American Society of Mechanical Engineers (ASME)
ISBN(電子版)9780791885154
DOI
出版ステータス出版済み - 2021
イベント2021 40th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2021 - Virtual, Online
継続期間: 6月 21 20216月 30 2021

出版物シリーズ

名前Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
5

会議

会議2021 40th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2021
CityVirtual, Online
Period6/21/216/30/21

!!!All Science Journal Classification (ASJC) codes

  • 海洋工学
  • エネルギー工学および電力技術
  • 機械工学

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