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부유식 파력발전단지 조성을 위한 계류선 초기설계

Preliminary Design of mooring line in floating wave energy farm

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주제분류해양공학

초록

In this paper, the mooring system for a floating wave energy farm is designed based on a two–dimensional analysis. The mooring system uses an anchorless mooring line linking two floaters in a floating wave energy farm. The basic equation to determine the length of the mooring line between the two floaters is proposed. The other properties such as the diameter and pretension are taken from the mooring line for a single floater. The dynamic behavior and safety of the designed mooring system under extreme ocean conditions are analyzed with the commercial software Orcaflex. A numerical study shows the stability and high safety in tension of the designed mooring lines for a floating wave energy farm. The proposed anchorless mooring system for a floating wave energy farm results in a considerable reduction in the length of the mooring line,contributing to the economics of a floating wave energy farm.

Abstract

In this paper, the mooring system for a floating wave energy farm is designed based on a two–dimensional analysis. The mooring system uses an anchorless mooring line linking two floaters in a floating wave energy farm. The basic equation to determine the length of the mooring line between the two floaters is proposed. The other properties such as the diameter and pretension are taken from the mooring line for a single floater. The dynamic behavior and safety of the designed mooring system under extreme ocean conditions are analyzed with the commercial software Orcaflex. A numerical study shows the stability and high safety in tension of the designed mooring lines for a floating wave energy farm. The proposed anchorless mooring system for a floating wave energy farm results in a considerable reduction in the length of the mooring line,contributing to the economics of a floating wave energy farm.

참고문헌 (11)

  1. IMO Res. A.749(18), "Code on Intact Stability for All Types of Ships Covered by IMO Instruments", ~
  2. Berteaux, H. O., "Buoy Engineering(Ocean Engineering, a Wiley Series)", Umi Research Pr, ~ (1976)
  3. Nam, B. W., "Prediction of the Hydrodynamic Performance of the Floating Pendulum Wave Energy Converter in Regular and Irregular Waves", International Conference of ISOPE2012, Rhode, Greece (2012)
  4. Det Norske Veritas(DNV), "Offshore Standard DNV_OS_E301", Position Mooring, ~ (2003)
  5. Hong, K. Y., "Technology Trend and Future Prospect on Wave Energy Conversion in Internal and External", The Proceeding in Korea Society of Marine Environment and Energy (2012)
  6. Johanning, L., "Mooring Design Approach for Wave Energy Converter", Proceedings of the Institution of Mechanical Engineers, Part M Journal of Engineering for the Maritime Environment (JEME) (2006)
  7. Johanninga, L., "Measurements of Static and Dynamic Mooring Line Damping and their Importance for Floating WEC Devices", Ocean Engineering, 34, pp.1918~1934 (2007)
  8. 정동호, "부유식 파력발전장치용 계류선의 설계 및 안전성 검토에 관한 연구", 한국해양공학회지, 26(4), pp.77~85 (2012), 한국해양공학회[DOI]
  9. "Korean Register of Shipping" (2013)[URL]
  10. Shin, S. H., "The State-of-the-Art and Key Performance Indicators for Commercial Use of the Wave Energy Utilization Technologies", Journal of Korean Civil Engineering, 59(5), pp.55~62 (2011)
  11. "Orcina" (2013)[URL]

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