Optimization of composite material tower for offshore wind turbine structures

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Title: Optimization of composite material tower for offshore wind turbine structures
Authors: O’Leary, Kieran
Pakrashi, Vikram
Kelliher, Denis
Permanent link: http://hdl.handle.net/10197/10499
Date: Sep-2019
Online since: 2019-05-16T10:40:56Z
Abstract: The focus of this study was to investigate the application of lightweight fiber reinforced composite materials in the construction of offshore wind turbine support structures. A composite tower design suitable for the NREL 5 MW reference wind turbine is presented. The design is based on the most automated and low cost composite manufacturing methods (pultrusion and filament winding) and the conclusions of this study may not be applicable for offshore structures using different composite material construction techniques. The mass of the tower was minimized using gradient based optimization approach. The cost of a composite tower was calculated and levelized cost of energy (LCOE) projections are discussed in comparison with the existing steel tower cost. The study determined that while the composite tower is technically feasible and has a lower mass than a comparable steel tower, uncertainty remains in how it compares economically in terms of LCOE.
Funding Details: Science Foundation Ireland
Type of material: Journal Article
Publisher: Elsevier
Journal: Renewable Energy
Volume: 140
Start page: 928
End page: 942
Copyright (published version): 2019 Elsevier
Keywords: Composite materialsOffshore wind support structureOptimization
DOI: 10.1016/j.renene.2019.03.101
Language: en
Status of Item: Peer reviewed
Appears in Collections:Mechanical & Materials Engineering Research Collection

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