Wave Energy Devices

Design, Development, and Experimental Studies

Srinivasan Chandrasekaran, Faisal Khan, Rouzbeh Abbassi

• Publisher: CRC Press
• Year: 2022
• Print ISBN: 9781032250755
• eBook ISBN: 9781000571530
• Edition: 1
• Topic: Physical Sciences
• Subtopic: Civil Engineering

Designing offshore wave energy converter (WEC) devices requires a thorough understanding of many aspects of science and engineering, namely, wave hydrodynamics, wave-WEC interactions, mechanical design, analysis tools, and conducting experiments. This book provides the tools for understanding these complex systems and addresses the basic concepts of WECs through detailed analysis and design. A few devices developed and experimentally investigated are discussed in detail, some of which are considered highly novel and still in the preliminary stages of study in the existing literature.

FEATURES

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• Offers numerous detailed design methods and practical model studies

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• Presents analysis of the dynamic response behavior of WECs based on experimental studies on scale models

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• Covers the most recent and novel innovations in the field

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• Includes a discussion of offshore wind farms as a green energy alternative and examines their conceptual development and design

This book serves as a useful guide for both academicians and professionals in naval architecture and offshore engineering as well as in civil and structural engineering. In addition, it helps in the understanding of structural behavior in terms of risk criteria, efficiency, service life, and reliability. Readers will gain a comprehensive knowledge of the design and development of offshore wave energy devices and the preliminary design of offshore wind turbines, which are currently largely absent in the scientific literature.

1 Ocean Waves and Wind Forces Basics

DOI: 10.1201/9781003281429-1

1.1 Ocean Environment

Wave-structure interaction, which dominates the geometric design of the floating offshore structures, is a well-known and clearly understood phenomenon. They were successfully practiced in the design principles of ships and other large floating structures like floating docks. Wave-structure interaction causes a complicated hydrodynamic behavior in open sea conditions. The wave loads developed on floating offshore structures are much higher than those developed by wind action. Wave loads that develop due to water particle motion also depend upon the size of the structural member. Due to the smaller influence of the slender members with diameter to wavelength ratio (D/L), less than 0.2 on the wave field, the wave loads can be calculated using Morison’s equation. In the case of floating structures with large-diameter members, their presence affects the wave field, and hence diffraction theory should be used to estimate these loads. The response analysis of offshore floating structures under wave loads depends on the type of waves considered (Nagavinothini and Chandrasekaran, 2020; Chandrasekaran and Nagavinothini, 2020). The large floating offshore structures shall also be under the influence of wind and current, in addition to the waves. The mast of the offshore wind turbine will be highly wind-sensitive and more susceptible to low-frequ...

Table of contents

• Cover
• Half-Title Page
• Title Page
• Copyright Page
• Table of Contents
• Preface
• Authors
• 1 Ocean Waves and Wind Forces: Basics
• 2 Perforated Cylinders and Applications
• 3 Floating Wave Energy Converter
• 4 Double-Rack Mechanical Wave Energy Converter
• 5 Offshore Wind Turbines
• References
• Index