Experimental study of two mooring systems for wave energy converters

S. Xu; S. Wang; T. S. Hallak; K. Rezanejad; M. A. Hinostroza; C. Guedes Soares; C. A. Rodríguez; P. Rosa-Santos; F. Taveira-Pinto

doi:10.1201/9780429505294-74

Experimental study of two mooring systems for wave energy converters

S. Xu, S. Wang, T. S. Hallak, K. Rezanejad, M. A. Hinostroza, C. Guedes Soares, C. A. Rodríguez, P. Rosa-Santos, F. Taveira-Pinto

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

23 Citations (Scopus)

Abstract

Model tests have been conducted to study the performance of alternative mooring systems aimed to be used at a later stage in a wave energy converter under development. The initial set of tests are intended to establish the properties of single lines of different configuration and thus a simple buoy has been chosen as the floater. Two mooring systems have been tested: a traditional catenary mooring system and a hybrid mooring system that behaves as a slack system. The performance of both mooring systems have been addressed by comparing the measured buoy motions in six degrees of freedom and mooring line tension, under regular and irregular head waves. In terms of mean drift motions, the obtained results demonstrated that the catenary mooring system may perform better for the operational conditions, while the slack system gave better results for the survival conditions. Regarding mooring line tensions in irregular seas, the slack system provides significantly lower spectral peaks.

Original language	English
Title of host publication	Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018
Editors	C. Guedes Soares, T.A. Santos
Place of Publication	London
Pages	667-676
Number of pages	10
Edition	1st
ISBN (Electronic)	9780429505294
DOIs	https://doi.org/10.1201/9780429505294-74
Publication status	Published - 31 May 2018
Externally published	Yes
Event	4th International Conference on Maritime Technology and Engineering, MARTECH 2018 - Lisbon, Portugal Duration: 7 May 2018 → 9 May 2018

Publication series

Name	Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018

Conference

Conference	4th International Conference on Maritime Technology and Engineering, MARTECH 2018
Country/Territory	Portugal
City	Lisbon
Period	7/05/18 → 9/05/18

Funding

This work was financially supported by the Project PTDC/MAR-TEC/6984/2014 - POCI-01-0145-FEDER-016882 - funded by FEDER funds through COMPETE2020 - Programa Operacional Competitividade e Internacionalização (POCI) and by national funds through FCT - Fundaç ã o para a Ciê ncia e a Tecnologia, I.P. This work was financially supported by the Project PTDC/MAR-TEC/6984/2014 – POCI-01-0145-FED ER-016882 – funded by FEDER funds through COMPETE2020 – Programa Operacional Competitividade e Internacionaliza-ção (POCI) and by national funds through FCT – Fundaç ã o para a Ciê ncia e a Tecnologia, I.P.

Keywords

experimental study
two mooring systems
wave energy converters

Access to Document

10.1201/9780429505294-74

Cite this

Xu, S., Wang, S., Hallak, T. S., Rezanejad, K., Hinostroza, M. A., Guedes Soares, C., Rodríguez, C. A., Rosa-Santos, P., & Taveira-Pinto, F. (2018). Experimental study of two mooring systems for wave energy converters. In C. G. Soares, & T. A. Santos (Eds.), Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018 (1st ed., pp. 667-676). (Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018).. https://doi.org/10.1201/9780429505294-74

Xu, S. ; Wang, S. ; Hallak, T. S. et al. / Experimental study of two mooring systems for wave energy converters. Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018. editor / C. Guedes Soares ; T.A. Santos. 1st. ed. London, 2018. pp. 667-676 (Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018).

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title = "Experimental study of two mooring systems for wave energy converters",

abstract = "Model tests have been conducted to study the performance of alternative mooring systems aimed to be used at a later stage in a wave energy converter under development. The initial set of tests are intended to establish the properties of single lines of different configuration and thus a simple buoy has been chosen as the floater. Two mooring systems have been tested: a traditional catenary mooring system and a hybrid mooring system that behaves as a slack system. The performance of both mooring systems have been addressed by comparing the measured buoy motions in six degrees of freedom and mooring line tension, under regular and irregular head waves. In terms of mean drift motions, the obtained results demonstrated that the catenary mooring system may perform better for the operational conditions, while the slack system gave better results for the survival conditions. Regarding mooring line tensions in irregular seas, the slack system provides significantly lower spectral peaks.",

keywords = "experimental study, two mooring systems, wave energy converters",

author = "S. Xu and S. Wang and Hallak, {T. S.} and K. Rezanejad and Hinostroza, {M. A.} and {Guedes Soares}, C. and Rodr{\'i}guez, {C. A.} and P. Rosa-Santos and F. Taveira-Pinto",

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booktitle = "Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018",

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Xu, S, Wang, S, Hallak, TS, Rezanejad, K, Hinostroza, MA, Guedes Soares, C, Rodríguez, CA, Rosa-Santos, P & Taveira-Pinto, F 2018, Experimental study of two mooring systems for wave energy converters. in CG Soares & TA Santos (eds), Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018. 1st edn, Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018, London, pp. 667-676, 4th International Conference on Maritime Technology and Engineering, MARTECH 2018, Lisbon, Portugal, 7/05/18. https://doi.org/10.1201/9780429505294-74

Experimental study of two mooring systems for wave energy converters. / Xu, S.; Wang, S.; Hallak, T. S. et al.
Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018. ed. / C. Guedes Soares; T.A. Santos. 1st. ed. London, 2018. p. 667-676 (Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

TY - GEN

T1 - Experimental study of two mooring systems for wave energy converters

AU - Xu, S.

AU - Wang, S.

AU - Hallak, T. S.

AU - Rezanejad, K.

AU - Hinostroza, M. A.

AU - Guedes Soares, C.

AU - Rodríguez, C. A.

AU - Rosa-Santos, P.

AU - Taveira-Pinto, F.

PY - 2018/5/31

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N2 - Model tests have been conducted to study the performance of alternative mooring systems aimed to be used at a later stage in a wave energy converter under development. The initial set of tests are intended to establish the properties of single lines of different configuration and thus a simple buoy has been chosen as the floater. Two mooring systems have been tested: a traditional catenary mooring system and a hybrid mooring system that behaves as a slack system. The performance of both mooring systems have been addressed by comparing the measured buoy motions in six degrees of freedom and mooring line tension, under regular and irregular head waves. In terms of mean drift motions, the obtained results demonstrated that the catenary mooring system may perform better for the operational conditions, while the slack system gave better results for the survival conditions. Regarding mooring line tensions in irregular seas, the slack system provides significantly lower spectral peaks.

AB - Model tests have been conducted to study the performance of alternative mooring systems aimed to be used at a later stage in a wave energy converter under development. The initial set of tests are intended to establish the properties of single lines of different configuration and thus a simple buoy has been chosen as the floater. Two mooring systems have been tested: a traditional catenary mooring system and a hybrid mooring system that behaves as a slack system. The performance of both mooring systems have been addressed by comparing the measured buoy motions in six degrees of freedom and mooring line tension, under regular and irregular head waves. In terms of mean drift motions, the obtained results demonstrated that the catenary mooring system may perform better for the operational conditions, while the slack system gave better results for the survival conditions. Regarding mooring line tensions in irregular seas, the slack system provides significantly lower spectral peaks.

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ER -

Xu S, Wang S, Hallak TS, Rezanejad K, Hinostroza MA, Guedes Soares C et al. Experimental study of two mooring systems for wave energy converters. In Soares CG, Santos TA, editors, Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018. 1st ed. London. 2018. p. 667-676. (Progress in Maritime Technology and Engineering - Proceedings of the 4th International Conference on Maritime Technology and Engineering, MARTECH 2018). Epub 2018 Apr 16. doi: 10.1201/9780429505294-74

Experimental study of two mooring systems for wave energy converters

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