Springer-Verlag Berlin Heidelberg, 2008. XI, 431 p. — ISBN 978-3-540-74894-6, e-ISBN 978-3-540-74895-3.The authors of this reference provide an updated and global view on ocean wave energy conversion for wave energy developers as well as for students and professors. The book is orientated to the practical solutions that this new industry has found so far and the problems that any device needs to face. It describes the actual principles applied to machines that convert wave power in electricity. Additionally, an historical review, state of the art of modern systems, a full scale prototype experience, and future perspectives are given. The authors are recognised researchers, and their contributions give an overall perspective of the state of the art of different technologies. The book does not intend to point to a specific technology; the market will be responsible for that. The main motivation to compile these texts is to provide, both to academia and industry, a first contact with the current status of wave energy conversion technologies, hopefully inspiring the next generation of engineers and scientists.Contents PrefaceIntroduction Wave Energy Literature Layout ReferencesLooking Back Wave Energy at the University of Edinburgh Politics Life after politics Looking Forward Acknowledgements ReferencesThe Theory Behind the Conversion of Ocean Wave Energy: a Review Introduction Historical and Parallel Perspectives Scope of the Review Terminology and Concepts Conversion Terminology Classification of Devices Alternative Device Classification Preliminary Considerations The Conversion Requirement Modelling the Resource Survivability The Hydrodynamics of Offshore Devices Hydrodynamic Approximations The Equation of Motion Optimal Hydrodynamic Performance A Single Axisymmetric Device Constrained Motion Arrays of Devices Elongated Bodies Control and Design Tuning and Bandwidth Design Control Strategies The Oscillating Water Column Frequency Domain Modelling Time Domain Modelling and Control Discussion ReferencesThe Wave Energy Resource The Resource and its Origin Sea States and their Energy Directional Spectra Estimation Using Stochastic Methods Directional Spectra Estimation Using Deterministic Methods Case Study Using Waverider Data Wave Growth, Travel and Decay Wave Climate Estimation Buoys Satellite Altimeters Global Wave Models Model Validation and Calibration Wave Energy in Shallow Water Discussion ReferencesNumerical and Experimental Modelling of WECs Fundamentals of Numerical Modelling Introduction to Panel Methods Applications of Panel Methods to Wave Energy Conversion Wave Tank and Wavemaker Design Tank Width Tank Length Paddle Size Multiple Paddles Drive and Control Systems Absorbing Wavemakers Absorbing Beaches Examples of Wave Tanks Guidelines for Laboratory Testing of WECs Introduction Laboratory Testing Shortcomings of Existing Practices Results and Conclusions Recommendations Case Study: Pelamis Numerical Simulation Experimental Modelling Outcomes Discussion ReferencesPower Take-Off Systems Air Turbine Design for OWCs Introduction Integrated systems: Engineering Design Requirements Air Turbine Design Configurations Operational Findings for the Wells Turbine Discussion and Conclusions Direct Drive – Linear Generators Principles of Direct Drive Wave Energy Conversion With Linear Generators Linear Generators Linear Machines Topologies Case Study: 3 m Point Absorber Hydraulics Introduction Spline Pumps Increasing Complexity Advantages of Oil-Hydraulics Hydraulic Circuits Linear Pumps Rotary Pumps Ring-cam Pumps Hydraulic Motors Flow Commutation Losses Active Valves Active Valve Machines Digital Displacement TM Alternative Applications: Desalination Introduction Desalination Technologies Current Status of Wave-Powered Desalination Challenges in Wave-Powered Desalination Prospects for Wave-Powered Desalination Discussion ReferencesFull-Scale WECs Oscillating Water Column LIMPET Pico – European Pilot Plant Archimedes Wave Swing (AWS) History Design of the Full-scale Pilot Plant Linear Generator Design Pelamis Development Programme Power Take-off Pelamis Hydrodynamics – Harnessing and Hiding Shedding the Load Implementation – Technology Transfer Wave Dragon A Floating Overtopping Device History of the Wave Dragon Overtopping Theory Wave Reflector Wings Low Head Turbines and Power Train Control Summary Operational Experience Oscillating Water Column - LIMPET Oscillating Water Column – Pico Plant Archimedes Wave Swing (AWS) Pelamis Wave Dragon Test Centres, Pilot Zones and European Cooperation Case Study: Wave Dragon Discussion ReferencesEnvironmental Impact Assessment Legislation and Administrative Issues The Need to Establish a Common Legislation Structure of an EIA: Methodologies Scientific Matters Potential Environmental Impacts and the Need for Monitoring Monitoring Mitigation Measures Case Studies Tests of Single Devices European Marine Energy Centre – EMEC Tests of the First Arrays Discussion References Author Index Index
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