https://scholars.lib.ntu.edu.tw/handle/123456789/611690
標題: | Biofouling on mooring lines and power cables used in wave energy converter systems—Analysis of fatigue life and energy performance | 作者: | Yang S.-H. Ringsberg J.W. Johnson E. Hu Z. SHUN-HAN YANG |
關鍵字: | Biofouling;Cables;Energy efficiency;Fatigue of materials;Mooring;Mooring cables;Ocean currents;Telecommunication cables;Energy performance;Fatigue calculations;Full-scale testing;Mooring chain;Power absorption;Power cables;Structural response;Wave energy converters;Wave energy conversion;biofouling;buoy system;cable;hydrodynamics;mooring system;parameterization;structural response;wave energy;More og Romsdal;Norway;Runde | 公開日期: | 2017 | 卷: | 65 | 起(迄)頁: | 166-177 | 來源出版物: | Applied Ocean Research | 摘要: | This study presents an analysis of a wave energy converter (WEC) system consisting of a buoy, a mooring system, and a power cable connected to a hub. The investigated WEC system is currently under full-scale testing near Runde in Norway. The purpose of the study was to investigate the characteristics of the entire system, primarily with regard to energy performance and the fatigue life of the mooring lines and power cable, considering the effects of marine biofouling and its growth on the system's components. By means of parametric study, the energy performance and fatigue life of the mooring lines and power cable were investigated considering two mooring configurations, three biofouling conditions, four sea states in a scatter diagram, and three wave and current directions. Hydrodynamic and structural response simulations were conducted in a coupled response analysis using the DNV-GL software SESAM. Energy performance analyses and stress-based rainflow counting fatigue calculations were performed separately using an in-house code. The results show that, for a WEC system which has been deployed for 25 years, biofouling can reduce the total power absorption by up to 10% and decrease the fatigue life of the mooring lines by approximately 20%. ? 2017 Elsevier Ltd |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85018515620&doi=10.1016%2fj.apor.2017.04.002&partnerID=40&md5=c5f467c05ecf9056b04271f2dfbcfc31 https://scholars.lib.ntu.edu.tw/handle/123456789/611690 |
ISSN: | 01411187 | DOI: | 10.1016/j.apor.2017.04.002 |
顯示於: | 工程科學及海洋工程學系 |
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