Model test of the DTI-Floating wind concept

J. Serret, T. Tezdogan, T. Stratford, P. R. Thies, V. Venugopal

Research output: Contribution to conferencePaper

Abstract

This study aims to de-risk the development of the Deep Turbine Installation-Floating (DTI-F) concept, a hybrid spar buoy-based floating offshore wind turbine with the novelty of being able to raise up and lower down the tower plus nacelle set. The paper presents the design and construction of a Froude-scaled model based on the DTI-F concept, the experimental testing configurations and conditions, and the instrumentation used to measure motions and loads. The test campaign included free decay and stiffness decay tests, along with regular and irregular wave testing. In addition to the hydrodynamic characterisation, the resonance properties of the system with different mooring configurations, i.e. three and four lines, and three lines with a delta connection, were investigated. We present the Response Amplitude Operators (RAOs) in all 6 degrees of freedom for two different mooring configurations. This work is the first step towards the calibration and performance improvement for existing numerical models of the DTI-F concept.

Conference

Conference3rd International Conference on Offshore Renewable Energy
Abbreviated titleCORE2018
CountryUnited Kingdom
CityGlasgow
Period29/08/1830/08/18
Internet address

Fingerprint

Turbines
Mooring
Offshore wind turbines
Testing
Towers
Numerical models
Loads (forces)
Hydrodynamics
Stiffness
Calibration

Keywords

  • wind turbine
  • offshore
  • Froude

Cite this

Serret, J., Tezdogan, T., Stratford, T., Thies, P. R., & Venugopal, V. (2018). Model test of the DTI-Floating wind concept. Paper presented at 3rd International Conference on Offshore Renewable Energy, Glasgow, United Kingdom.
Serret, J. ; Tezdogan, T. ; Stratford, T. ; Thies, P. R. ; Venugopal, V. / Model test of the DTI-Floating wind concept. Paper presented at 3rd International Conference on Offshore Renewable Energy, Glasgow, United Kingdom.11 p.
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Serret, J, Tezdogan, T, Stratford, T, Thies, PR & Venugopal, V 2018, 'Model test of the DTI-Floating wind concept' Paper presented at 3rd International Conference on Offshore Renewable Energy, Glasgow, United Kingdom, 29/08/18 - 30/08/18, .

Model test of the DTI-Floating wind concept. / Serret, J.; Tezdogan, T.; Stratford, T.; Thies, P. R.; Venugopal, V.

2018. Paper presented at 3rd International Conference on Offshore Renewable Energy, Glasgow, United Kingdom.

Research output: Contribution to conferencePaper

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T1 - Model test of the DTI-Floating wind concept

AU - Serret, J.

AU - Tezdogan, T.

AU - Stratford, T.

AU - Thies, P. R.

AU - Venugopal, V.

PY - 2018/8/29

Y1 - 2018/8/29

N2 - This study aims to de-risk the development of the Deep Turbine Installation-Floating (DTI-F) concept, a hybrid spar buoy-based floating offshore wind turbine with the novelty of being able to raise up and lower down the tower plus nacelle set. The paper presents the design and construction of a Froude-scaled model based on the DTI-F concept, the experimental testing configurations and conditions, and the instrumentation used to measure motions and loads. The test campaign included free decay and stiffness decay tests, along with regular and irregular wave testing. In addition to the hydrodynamic characterisation, the resonance properties of the system with different mooring configurations, i.e. three and four lines, and three lines with a delta connection, were investigated. We present the Response Amplitude Operators (RAOs) in all 6 degrees of freedom for two different mooring configurations. This work is the first step towards the calibration and performance improvement for existing numerical models of the DTI-F concept.

AB - This study aims to de-risk the development of the Deep Turbine Installation-Floating (DTI-F) concept, a hybrid spar buoy-based floating offshore wind turbine with the novelty of being able to raise up and lower down the tower plus nacelle set. The paper presents the design and construction of a Froude-scaled model based on the DTI-F concept, the experimental testing configurations and conditions, and the instrumentation used to measure motions and loads. The test campaign included free decay and stiffness decay tests, along with regular and irregular wave testing. In addition to the hydrodynamic characterisation, the resonance properties of the system with different mooring configurations, i.e. three and four lines, and three lines with a delta connection, were investigated. We present the Response Amplitude Operators (RAOs) in all 6 degrees of freedom for two different mooring configurations. This work is the first step towards the calibration and performance improvement for existing numerical models of the DTI-F concept.

KW - wind turbine

KW - offshore

KW - Froude

UR - http://www.offshore-renewables.co.uk/

M3 - Paper

ER -

Serret J, Tezdogan T, Stratford T, Thies PR, Venugopal V. Model test of the DTI-Floating wind concept. 2018. Paper presented at 3rd International Conference on Offshore Renewable Energy, Glasgow, United Kingdom.