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Feasibility Study of Offshore Triceratops-Supported Floating Offshore Wind Turbine

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Abstract

Many countries have updated their renewable energy policies, in which considerable attention is drawn towards offshore wind energy. Offshore industry has witnessed many evolved structural platforms, whether they are fixed or floating. As far as the oil and gas industry is concerned, there are various floater schemes currently in practice, such as SPAR, Tension-Leg Platform, and Semi-Submersible. Among these, Triceratops is a new concept which has many structural benefits over existing floating platforms. Several studies have reported their advantages and applications in oil and gas industry. The current study focuses on the feasibility of offshore Triceratops as an alternate floater scheme for Floating Offshore Wind Turbines (FOWTs) in deep waters. The coupled dynamic analysis due to wind-induced motion and hydrodynamics of the platform under waves are examined. Wind loads are modelled using OpenFAST, and the results are coupled in ANSYS Workbench to obtain hydrodynamic diffraction and motion responses. The responses for the two floater schemes, i.e. SPAR and Triceratops-supported FOWT, are compared, and the necessary conclusions are laid to provide insights into the feasibility of using the Offshore Triceratops for supporting FOWT.

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Abbreviations

FOWT:

Floating Offshore Wind Turbine

SPAR:

Single Point Anchor Reservoir

TLP:

Tension-Leg Platform

BLS:

Buoyant Leg Structures

FAST:

Fatigue, Aerodynamics, Structures and Turbulence

NREL:

National Renewable Energy Limited

IEC:

International Electrotechnical Commission

NTM:

Normal Turbulence Model

HH:

Hub height

HD:

Hub diameter

TI:

Turbulence Intensity

MW:

Mega-Watt

c/c:

Centre to centre

CoG:

Centre of Gravity

CoB:

Centre of Buoyancy

IXX :

Moment of Inertia about X–X Axis

IYY :

Moment of Inertia about Y–Y Axis

Iz:

Moment of Inertia about Z–Z Axis

MBL:

Maximum Breaking Load

GoM:

Gulf of Mexico

TH:

Time history

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Funding

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

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Authors and Affiliations

  1. Deptartment of Ocean Engineering, Indian Institute of Technology Madras, Chennai, India

    Chandrasekaran Srinivasan

  2. Deptartment of Structural Engineering, University of Naples Federico II, Naples, Italy

    Chandrasekaran Srinivasan & Giorgio Serino

  3. Deptartment of Applied Mechanics, L. D. College of Engineering, Ahmedabad, India

    Yogesh J. Chauhan, Chaitanya Sanghvi & Aishwary Gohil

Authors
  1. Chandrasekaran Srinivasan
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  2. Giorgio Serino
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  3. Yogesh J. Chauhan
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  4. Chaitanya Sanghvi
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  5. Aishwary Gohil
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Contributions

SC and YJC were involved in conceptualization and visualization; SC, YJC, and AG helped in methodology; Formal analysis and investigation were done by YJC and AG; YJC and AG helped in writing—original draft preparation; YJC, SC, GS, and CSS helped in writing—review and editing; Supervision was done by SC and YJC. All authors have read and contributed to the manuscript.

Corresponding author

Correspondence to Yogesh J. Chauhan.

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Srinivasan, C., Serino, G., Chauhan, Y.J. et al. Feasibility Study of Offshore Triceratops-Supported Floating Offshore Wind Turbine. J. Inst. Eng. India Ser. A (2024). https://doi.org/10.1007/s40030-024-00800-w

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