NOVA project: lessons learnt during the conceptual phase of the design of a floating support structure for an offshore vertical axis wind turbine

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

2 Citations (Scopus)

Abstract

The Energy Technologies Institute (ETI, UK) funded project called NOVA (for Novel Vertical Axis wind turbine) examined the feasibility of a large offshore vertical axis wind turbine in the 5 to 10 MW power range, with a view toward 20 MW. The NOVA feasibility study required a methodology to be developed to select the best configuration, based on the system dynamics. Two options have been analysed: fixed and floating support structure, with the floating option is here analysed. The design space has been investigated, ranking the possible options using a multi-criteria decision making (MCDM) method called TOPSIS. Based on this, two configurations have been promoted to the next analysis stage: a barge and a semisubmersible. The evolution of the configuration designs, necessary to optimise and compare these two options, is here presented, taking their dynamics and costs into account. The barge concept evolved to the 'triple doughnut-Miyagawa' concept, consisting of an annular cylindrical shape with an inner (to control the damping) and outer (to control added mass) bottom flat plates. The semisubmersible was optimised to obtain the best trade-off between dynamic behaviour and amount of material needed. The main conclusion is that, in general, the requirement driving the design is a good dynamic response to waves. If only basic requirements were taken into account (ability to float and ability to counteract the wind turbine inclining moment), a much smaller, lighter, and cheaper structure would fulfil them.

LanguageEnglish
Title of host publicationASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012
Pages637-648
Number of pages12
Volume7
DOIs
Publication statusPublished - 1 Dec 2012
EventASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012 - Rio de Janeiro, Brazil
Duration: 1 Jul 20126 Jul 2012

Conference

ConferenceASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012
CountryBrazil
CityRio de Janeiro
Period1/07/126/07/12

Fingerprint

Wind turbines
Barges
Dynamic response
Dynamical systems
Damping
Decision making
Costs

Keywords

  • NOVA Wind Turbine
  • floating support structures
  • offshore wind turbines
  • vertical axis wind turbines

Cite this

Collu, M., Brennan, F. P., & Patel, M. H. (2012). NOVA project: lessons learnt during the conceptual phase of the design of a floating support structure for an offshore vertical axis wind turbine. In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012 (Vol. 7, pp. 637-648) https://doi.org/10.1115/OMAE2012-84232
Collu, Maurizio ; Brennan, Feargal P. ; Patel, Minoo H. / NOVA project : lessons learnt during the conceptual phase of the design of a floating support structure for an offshore vertical axis wind turbine. ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012. Vol. 7 2012. pp. 637-648
@inproceedings{b7e3e1ab032a4e46b167dfba75008da7,
title = "NOVA project: lessons learnt during the conceptual phase of the design of a floating support structure for an offshore vertical axis wind turbine",
abstract = "The Energy Technologies Institute (ETI, UK) funded project called NOVA (for Novel Vertical Axis wind turbine) examined the feasibility of a large offshore vertical axis wind turbine in the 5 to 10 MW power range, with a view toward 20 MW. The NOVA feasibility study required a methodology to be developed to select the best configuration, based on the system dynamics. Two options have been analysed: fixed and floating support structure, with the floating option is here analysed. The design space has been investigated, ranking the possible options using a multi-criteria decision making (MCDM) method called TOPSIS. Based on this, two configurations have been promoted to the next analysis stage: a barge and a semisubmersible. The evolution of the configuration designs, necessary to optimise and compare these two options, is here presented, taking their dynamics and costs into account. The barge concept evolved to the 'triple doughnut-Miyagawa' concept, consisting of an annular cylindrical shape with an inner (to control the damping) and outer (to control added mass) bottom flat plates. The semisubmersible was optimised to obtain the best trade-off between dynamic behaviour and amount of material needed. The main conclusion is that, in general, the requirement driving the design is a good dynamic response to waves. If only basic requirements were taken into account (ability to float and ability to counteract the wind turbine inclining moment), a much smaller, lighter, and cheaper structure would fulfil them.",
keywords = "NOVA Wind Turbine, floating support structures, offshore wind turbines, vertical axis wind turbines",
author = "Maurizio Collu and Brennan, {Feargal P.} and Patel, {Minoo H.}",
year = "2012",
month = "12",
day = "1",
doi = "10.1115/OMAE2012-84232",
language = "English",
isbn = "9780791844946",
volume = "7",
pages = "637--648",
booktitle = "ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012",

}

Collu, M, Brennan, FP & Patel, MH 2012, NOVA project: lessons learnt during the conceptual phase of the design of a floating support structure for an offshore vertical axis wind turbine. in ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012. vol. 7, pp. 637-648, ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012, Rio de Janeiro, Brazil, 1/07/12. https://doi.org/10.1115/OMAE2012-84232

NOVA project : lessons learnt during the conceptual phase of the design of a floating support structure for an offshore vertical axis wind turbine. / Collu, Maurizio; Brennan, Feargal P.; Patel, Minoo H.

ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012. Vol. 7 2012. p. 637-648.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

TY - GEN

T1 - NOVA project

T2 - lessons learnt during the conceptual phase of the design of a floating support structure for an offshore vertical axis wind turbine

AU - Collu, Maurizio

AU - Brennan, Feargal P.

AU - Patel, Minoo H.

PY - 2012/12/1

Y1 - 2012/12/1

N2 - The Energy Technologies Institute (ETI, UK) funded project called NOVA (for Novel Vertical Axis wind turbine) examined the feasibility of a large offshore vertical axis wind turbine in the 5 to 10 MW power range, with a view toward 20 MW. The NOVA feasibility study required a methodology to be developed to select the best configuration, based on the system dynamics. Two options have been analysed: fixed and floating support structure, with the floating option is here analysed. The design space has been investigated, ranking the possible options using a multi-criteria decision making (MCDM) method called TOPSIS. Based on this, two configurations have been promoted to the next analysis stage: a barge and a semisubmersible. The evolution of the configuration designs, necessary to optimise and compare these two options, is here presented, taking their dynamics and costs into account. The barge concept evolved to the 'triple doughnut-Miyagawa' concept, consisting of an annular cylindrical shape with an inner (to control the damping) and outer (to control added mass) bottom flat plates. The semisubmersible was optimised to obtain the best trade-off between dynamic behaviour and amount of material needed. The main conclusion is that, in general, the requirement driving the design is a good dynamic response to waves. If only basic requirements were taken into account (ability to float and ability to counteract the wind turbine inclining moment), a much smaller, lighter, and cheaper structure would fulfil them.

AB - The Energy Technologies Institute (ETI, UK) funded project called NOVA (for Novel Vertical Axis wind turbine) examined the feasibility of a large offshore vertical axis wind turbine in the 5 to 10 MW power range, with a view toward 20 MW. The NOVA feasibility study required a methodology to be developed to select the best configuration, based on the system dynamics. Two options have been analysed: fixed and floating support structure, with the floating option is here analysed. The design space has been investigated, ranking the possible options using a multi-criteria decision making (MCDM) method called TOPSIS. Based on this, two configurations have been promoted to the next analysis stage: a barge and a semisubmersible. The evolution of the configuration designs, necessary to optimise and compare these two options, is here presented, taking their dynamics and costs into account. The barge concept evolved to the 'triple doughnut-Miyagawa' concept, consisting of an annular cylindrical shape with an inner (to control the damping) and outer (to control added mass) bottom flat plates. The semisubmersible was optimised to obtain the best trade-off between dynamic behaviour and amount of material needed. The main conclusion is that, in general, the requirement driving the design is a good dynamic response to waves. If only basic requirements were taken into account (ability to float and ability to counteract the wind turbine inclining moment), a much smaller, lighter, and cheaper structure would fulfil them.

KW - NOVA Wind Turbine

KW - floating support structures

KW - offshore wind turbines

KW - vertical axis wind turbines

UR - http://www.scopus.com/inward/record.url?scp=84884469500&partnerID=8YFLogxK

U2 - 10.1115/OMAE2012-84232

DO - 10.1115/OMAE2012-84232

M3 - Conference contribution book

SN - 9780791844946

VL - 7

SP - 637

EP - 648

BT - ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012

ER -

Collu M, Brennan FP, Patel MH. NOVA project: lessons learnt during the conceptual phase of the design of a floating support structure for an offshore vertical axis wind turbine. In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012. Vol. 7. 2012. p. 637-648 https://doi.org/10.1115/OMAE2012-84232