Offshore energy structures : for wind power wave energy and hybrid marine platforms This book provides all the key information needed to design offshore structures for renewable energy applications successfully. Suitable for practicing engineers and students the author conveys design principles and best practices in a clear concise manner focusing on underlying physics while eschewing complicated mathematical detail. The text connects underlying scientific theory with industry standards and practical implementation issues for offshore wind turbines wave energy converters and current turbines. Combined concepts such as wave wind energy platforms are discussed as well. Coverage of design codes and numerical tools ensures the usefulness of this resource for all those studying and working in the rapidly expanding field of offshore renewable energy. Intro Preface Contents Chapter 1 Introduction 1.1 Background 1.2 Objectives 1.3 Scope References Chapter 2 Wind Turbines 2.1 Introduction 2.2 Nacelle 2.3 Hub 2.4 Blades 2.5 Pitch System 2.6 Main Shaft 2.7 Gearbox 2.8 Generator 2.9 Control 2.10 Sensors 2.11 Converter 2.12 Transformer 2.13 Yaw System 2.14 Rotor 2.15 Tower 2.16 Wind Park References Chapter 3 Fixed Offshore Wind Turbines 3.1 Introduction 3.2 Offshore Wind Farms 3.3 A Case Study: Greater Gabbard Wind Farm 3.4 Bottom Fixed Offshore Wind Turbine Concepts 3.5 Monopiles 3.5.1 Monopile Characteristics 3.6 Jacket Wind Turbine 3.7 Tripile Wind Turbine 3.8 Tripod Wind Turbine 3.9 Gravity Based Wind Turbines References Chapter 4 Floating Offshore Wind Turbines 4.1 Introduction 4.2 Floating Offshore Wind Projects 4.3 Hywind Project 4.4 WindFloat Project 4.5 Fukushima Project 4.6 Floating Wind Turbine Concepts 4.7 Semisubmersible Offshore Wind Turbine 4.8 Tension Leg Platform (TLP) Offshore Wind Turbine 4.9 Spar Offshore Wind Turbine 4.10 Unconventional Floating Wind Turbine Concepts Bibliography Chapter 5 Wave Energy Converters 5.1 Introduction 5.2 Wave Energy Resources 5.3 Wave Energy Converter Concepts 5.4 Overtopping Energy Devices 5.5 Oscillating Water Column 5.6 Point Absorber 5.7 Wave Energy Converter Projects 5.7.1 Wavestar (Wave Star Energy) 5.7.2 Pelamis (Pelamis Wave Power) 5.7.3 Wave Dragon (Wave Dragon A S) 5.7.4 OE Buoy (Ocean Energy Ltd.) 5.7.5 Oyster (Aquamarine Power) 5.7.6 WaveRoller (AW Energy) 5.7.7 LIMPET (Voith Hydro Wavegen Ltd.) 5.7.8 OceanLinx (Oceanlinx) 5.7.9 CETO (Carnegie Wave Energy Limited) 5.7.10 Powerbuoy (Ocean Power Technologies) References.