Moored multi-float wec m4 and hybrid with wind: Experiments and modelling

P. K. Stansby; E. Carpintero Moreno; T. Stallard

Moored multi-float wec m4 and hybrid with wind: Experiments and modelling

P. K. Stansby, E. Carpintero Moreno, T. Stallard

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Experiments have been undertaken to assess the performance of the six-float version of the moored multi-mode multi-float wave energy converter M4. Time-domain linear diffraction modelling slightly underestimates power capture except for larger wave periods. Without power take off the relative response and platform acceleration were quite linear with wave height up to extreme conditions. Converting to a hybrid wind-wave platform supporting a wind turbine on the central mid float with damping plates on the bow and mid floats reduced wave power capture to about 40%. The linear modelling approximately predicted motion and power with an overall drag coefficient of 6 for the plates and surprisingly with their added mass reduced to zero; this is thought to be due to the lift force from bound circulation for bodies in orbital flow opposing the inertia force. Accelerations at hub and hinge without PTO were approximately linear. This study concerns hydrodynamics only.

Original language	English
Title of host publication	Advances in Renewable Energies Offshore - Proceedings of the 3rd International Conference on Renewable Energies Offshore, RENEW 2018
Editors	C. Guedes Soares
Publisher	CRC Press
Pages	323-330
Number of pages	8
ISBN (Print)	9781138585355
Publication status	Published - 1 Jan 2019
Event	3rd International Conference on Renewable Energies Offshore, RENEW 2018 - Lisbon, Portugal Duration: 8 Oct 2018 → 10 Oct 2018

Conference

Conference	3rd International Conference on Renewable Energies Offshore, RENEW 2018
Country/Territory	Portugal
City	Lisbon
Period	8/10/18 → 10/10/18

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "Moored multi-float wec m4 and hybrid with wind: Experiments and modelling",

abstract = "Experiments have been undertaken to assess the performance of the six-float version of the moored multi-mode multi-float wave energy converter M4. Time-domain linear diffraction modelling slightly underestimates power capture except for larger wave periods. Without power take off the relative response and platform acceleration were quite linear with wave height up to extreme conditions. Converting to a hybrid wind-wave platform supporting a wind turbine on the central mid float with damping plates on the bow and mid floats reduced wave power capture to about 40%. The linear modelling approximately predicted motion and power with an overall drag coefficient of 6 for the plates and surprisingly with their added mass reduced to zero; this is thought to be due to the lift force from bound circulation for bodies in orbital flow opposing the inertia force. Accelerations at hub and hinge without PTO were approximately linear. This study concerns hydrodynamics only.",

author = "Stansby, {P. K.} and Moreno, {E. Carpintero} and T. Stallard",

year = "2019",

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pages = "323--330",

editor = "Soares, {C. Guedes}",

booktitle = "Advances in Renewable Energies Offshore - Proceedings of the 3rd International Conference on Renewable Energies Offshore, RENEW 2018",

publisher = "CRC Press",

address = "United States",

note = "3rd International Conference on Renewable Energies Offshore, RENEW 2018 ; Conference date: 08-10-2018 Through 10-10-2018",

}

Stansby, PK, Moreno, EC & Stallard, T 2019, Moored multi-float wec m4 and hybrid with wind: Experiments and modelling. in CG Soares (ed.), Advances in Renewable Energies Offshore - Proceedings of the 3rd International Conference on Renewable Energies Offshore, RENEW 2018. CRC Press, pp. 323-330, 3rd International Conference on Renewable Energies Offshore, RENEW 2018, Lisbon, Portugal, 8/10/18.

Moored multi-float wec m4 and hybrid with wind: Experiments and modelling. / Stansby, P. K.; Moreno, E. Carpintero; Stallard, T.
Advances in Renewable Energies Offshore - Proceedings of the 3rd International Conference on Renewable Energies Offshore, RENEW 2018. ed. / C. Guedes Soares. CRC Press, 2019. p. 323-330.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Moreno, E. Carpintero

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N2 - Experiments have been undertaken to assess the performance of the six-float version of the moored multi-mode multi-float wave energy converter M4. Time-domain linear diffraction modelling slightly underestimates power capture except for larger wave periods. Without power take off the relative response and platform acceleration were quite linear with wave height up to extreme conditions. Converting to a hybrid wind-wave platform supporting a wind turbine on the central mid float with damping plates on the bow and mid floats reduced wave power capture to about 40%. The linear modelling approximately predicted motion and power with an overall drag coefficient of 6 for the plates and surprisingly with their added mass reduced to zero; this is thought to be due to the lift force from bound circulation for bodies in orbital flow opposing the inertia force. Accelerations at hub and hinge without PTO were approximately linear. This study concerns hydrodynamics only.

AB - Experiments have been undertaken to assess the performance of the six-float version of the moored multi-mode multi-float wave energy converter M4. Time-domain linear diffraction modelling slightly underestimates power capture except for larger wave periods. Without power take off the relative response and platform acceleration were quite linear with wave height up to extreme conditions. Converting to a hybrid wind-wave platform supporting a wind turbine on the central mid float with damping plates on the bow and mid floats reduced wave power capture to about 40%. The linear modelling approximately predicted motion and power with an overall drag coefficient of 6 for the plates and surprisingly with their added mass reduced to zero; this is thought to be due to the lift force from bound circulation for bodies in orbital flow opposing the inertia force. Accelerations at hub and hinge without PTO were approximately linear. This study concerns hydrodynamics only.

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BT - Advances in Renewable Energies Offshore - Proceedings of the 3rd International Conference on Renewable Energies Offshore, RENEW 2018

A2 - Soares, C. Guedes

PB - CRC Press

Y2 - 8 October 2018 through 10 October 2018

ER -

Moored multi-float wec m4 and hybrid with wind: Experiments and modelling

Abstract

Conference

UN SDGs

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