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There are many ways to harness the renewable and emissions-free energy available from the Earth's oceans. The technologies include wave energy, tidal and current energy, and energy from thermal and salinity gradients. In addition, offshore wind energy and marine (floating) solar arrays offer a possibility to exploit vast resources that are far larger than those available onshore. The potential capacities range from many hundreds of gigawatts to terawatts of generation. These technologies could contribute a significant part of the global electricity demand; they are particularly suitable for providing sustainable power to marine regions and island communities and nations.
The waves that animate the surface of the oceans represent a deposit of renewable energy that for the most part is still unexploited today. This is not for lack of effort, as for more than two hundred years inventors, researchers and engineers have struggled to develop processes and systems to recover the energy of the waves. While all of these efforts have failed to converge towards a satisfactory technological solution, the result is a rich scientific and technical literature as well as extensive and varied feedback from experience. For the uninitiated, this abundance is an obstacle. In order to facilitate familiarization with the subject, we propose in this work a summary of the state of knowledge on the potential of wave energy as well as on the processes and technologies of its recovery (wave energy converters). In particular, we focus on the problem of positioning wave energy in the electricity market, the development of wave energy conversion technologies from a historical perspective, and finally the energy performance of the devices. This work is aimed at students, researchers, developers, industry professionals and decision makers who wish to acquire a global perspective and the necessary tools to understand the field. - Reviews the state of knowledge and developments on wave energy recovery - Presents the history of wave energy recovery - Classifies the various systems for recovering this type of energy
The authors of this timely reference provide an updated and global view on ocean wave energy conversion – and they do so 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 to electricity and examines state-of-the-art modern systems.
Scientists and engineers around the world are striving to develop new sources of energy. One source, ocean thermal energy conversion, has virtually unlimited potential. It is based on techniques that exploit heat produced by solar energy that may, in turn, be used to produce fuel and electricity. This book reviews the status and background of this promising technology. William H. Avery is the leading expert in this field, and his co-author Chih Wu is an authority on heat engine performance. Together they describe the workings of an OTEC power plant and how such a system might be implemented as part of a futuristic national energy strategy. The book is the only detailed presentation of basic OTEC technology, its testing and improvement. It is based on extensive development initiatives undertaken internationally during the period from 1974 through 1985. The book offers a thorough assessment of the economics of OTEC in comparison with other energy production methods. It will be of interest to a wide range of professionals in energy research, power and mechanical engineering, and to upper-level undergraduate students taking courses in these fields.
Purification, regeneration, transformation . . . the ocean has long been known for its extraordinary powers. Sandra Kynes invites you to explore the sea's mystical energies. This spiritual voyage can help you find balance in your life or guide you toward a "sea change" of your own. "Sea Magic" is for everyone. You don't have to live on the coast or follow any specific spiritual path to tap into the unique energy of the ocean. Kynes offers meditations and exercises to help you center yourself, explore emotions, and find your place in the vast web of life. Dive into inner worlds of imagination and creativity. Choose a sea fetch (totem animal) to take you on a shamanic journey. Build an altar to focus your intentions and learn the rhythms of the moon. From working with sea deities to divining with seashells, "Sea Magic "offers ample ways to enhance your life and open up to divine guidance.
Understand the absorption of energy from ocean waves by means of oscillating systems with this useful new edition. Essential for engineers, researchers, and graduate students, and an indispensable tool for those who work in this field.
The 21st century is characterized as an era of natural resource depletion, and humanity is faced with several threats due to the lack of food, energy, and water. Climate change and sea-level rise are at unprecedented levels, being phenomena that make predicting the future of ocean resources more complicated. Oceans contain a limitless amount of water with small (but finite) temperature differences from their surfaces to their floors. To advance the utilization of ocean resources, this book readdresses the past achievements, present developments, and future progress of ocean thermal energy, from basic sciences to sociology and cultural aspects.

Oceans

Pierre Jacquet, Rajendra K Pachauri, Laurence Tubiana

Published: 2011-01-01

Total Pages: 242


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Oceans The New Frontier explores how human community insistently pushes the oceans' limits, seeking to exploit all of their varied resources minerals, fisheries, fuels and genetic material. The ocean frontier is constantly being redefined by new discoveries, technologies, national strategies, and ecological imperatives. Increasing dependence of humanity on the resources of the oceans has blurred the boundaries between the mainland and oceans.As humanity's footprint extends, oceans are seeing intense conflicts between actors and issues. The book questions the ability of global governance to regulate access to resources and services provided by the oceans so as to protect the ocean ecosystems. The chapters show how the global governance system has not been adequately responsive while in many cases local initiatives have contributed the solutions. Special sites, like sea-ports, can provide levers for action.Oceans The New Frontier is part of a series of annual publications on sustainable development (A Planet for Life) prepared under the scientific leadership of leading figures in the field of sustainable development.
""Liquid Earth: The Hidden Power of Our World's Oceans"" unveils the crucial role oceans play in shaping our planet's climate, weather patterns, and biodiversity. This comprehensive exploration challenges the perception of oceans as separate from terrestrial ecosystems, emphasizing their integral role in Earth's biosphere. The book delves into three main topics: the ocean's influence on global climate, its impact on weather systems, and its role in sustaining biodiversity, highlighting the urgent need for marine conservation efforts. Structured in four sections, the book seamlessly weaves together scientific data, historical anecdotes, and future projections to create a holistic picture of oceanography. It explores fascinating interconnections, such as how ocean currents influence global trade routes and how marine ecosystems provide billions of dollars worth of services to human societies. The author employs vivid descriptions and analogies to explain complex concepts, making the content accessible to both general readers and those with a scientific background. What sets ""Liquid Earth"" apart is its multifaceted approach, combining elements of nature writing, scientific exposition, and travel narrative. It takes readers on a journey from the Mariana Trench to the Arctic seas, revealing hidden wonders and emphasizing the critical importance of Earth's aquatic realm. By presenting oceans as dynamic, interconnected systems, the book inspires readers to reconsider their relationship with the sea and take action towards preserving these vital waters for future generations.
Any structural system in service is subject to age-related deterioration, leading to potential concerns regarding maintenance, health & safety, environmental and economic implications. Condition assessment of aged structures is an invaluable, single source of information on structural assessment techniques for marine and land-based structures such as ships, offshore installations, industrial plant and buildings. Topics covered include: - - Current practices and standards for structural condition assessment - - Fundamental mechanisms and advanced mathematical methods for predicting structural deterioration - - Residual strength assessment of deteriorated structures - - Inspection and maintenance of aged structures - - Reliability and risk assessment of aged structuresProfessionals from a broad range of disciplines will be able to gain a better understanding of current practices and standards for structural condition assessment or health monitoring, and what future trends might be. - Single source of information on structural assessment techniques for marine and land-based structures - Examines the residual strength and reliability of aged structures - Assesses current practices covering inspection, health monitoring and maintenance