Study on the Use of Ocean Wave as Renewable Energy (original) (raw)
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Planning and Development of Ocean Wave Energy Conversion
At the beginning of the 21st century, global environmental problems, including global warming, were attracting attention worldwide. In these circumstances, momentum is building across the world for the effective utilization of clean and renewable natural energy sources. The ocean is the world's largest collector and storage medium for solar energy. At the same time, it produces various forms of energy while interacting with the atmosphere. Wave energy is an indirect and condensed form of solar energy. Wave gathers their energy from the wind. Wave gather, store and transmit this energy thousands of kilometers with little loss. As long as sun shines, wave energy will never be depleted. It varies in intensity, but it is available throughout the day and year.
Ocean Wave Energy Potential and Extraction Technologies
To cope with the energy crisis, many countries are struggling to develop the new and renewable energy resources. Wave and wave current energy are promising energy resources because they can be developed at a very large scale. In order to develop techniques for harnessing wave energy, field measurements have been performed and numerical modeling as well as estimation of potential energy are under progress in Kuala Terengganu coastline. The main wave characteristics are commonly given in terms wave height, period, direction of propagation and power. The power in wave can be expressed by the formula P = (ρg 2 /64π)H 2 s T, kW per meter of crest length. However, it is rarely possible to measure data in a proposed sea area over a long period of time, and to use the data in setting the environmental condition parameters within which such devices will be expected to function. As a result, short-term data and water-related data supplied by weather stations concerning the proposed sea area are often used when designing WEC devices. This paper aims to describe the importance of data and collection methods, parameters to estimate the potential wave energy and explain wave energy conversion methods.
With the increase in the demand of electrical and the oncoming predicted energy crises due the shortage of thermal driven plant fuels, it is inevitable to choose for a sustainability approach in order to provide for the shortcomings in the given scenario. Ocean Wave Energy is one of the proposed approaches, which of course can utilize the immense Wave motion of oceans and convert it into electrical energy for other purposes . Ocean Wave energy Power Take off systems vary greatly from one another, Power take of Systems are in development and many design has been proposed , not a universally acceptable design has yet been chosen. This paper provides an up-to-date review of the status of ocean wave energy technology and identifies some of the key barriers challenging the development of ocean wave energy. The current devices in use a feasibility study , A study the effects of coastline on wave power absorption, a full scale model , describing here a linearized theory of an oscillating water column (OWC) installed on a straight coast will be taken in account and The future development of ocean wave energy devices is discussed as well as examining the importance of a supportive policy to assist development.
2019
Energy consumption all over the world is increasing rapidly, that is why to fulfill this demand various types of energy sources are needed. During this project, one of the well known type of renewable energy sources wave water energy will be explored. The main aim of this research is to calculate coefficient of efficiency in terms of cost and power dependence and to model new design of ocean wave energy converter. The structure of Sea Slot-cone Generator will be benchmark model for this research and it has several reservoirs, which will have own turbines to produce energy. The data analysis in terms of efficiency and physical behavior will be tested on software ANSYS by making 2D and 3D simulations of a flow. Various shapes of sea slot cone generator will be tested and analysis in terms of pressure and velocity would be made. For preliminary study, the simulation of a flow in 2D will be made and by identifying the velocity profile of the flow ocean wave energy extraction will be tested.
Wave energy resource assessment and review of the technologies
2011
Increase in human population has increased the demand for more energy. Technical improvement in transport and electrical appliances gives a lot of facilities to our life nowadays. Still we need to generate or convert this energy. Energy generation based on conventional technologies is always accompanied by environmental pollution. It gives overheating and greenhouse effects that later result in biosphere degradation. Nowadays sea wave energy is being increasingly regarded in many countries as a major and promising resource. It is renewable and environmentally friendly. In this paper wave parameters related to wave energy is analyzed. Then the paper describes the development of many different types of waveenergy converters. Several topics are addressed; the characterization of the wave energy resource, range of devices and how such devices can be organized into classes. Copyright © 2011 International Energy and Environment Foundation All rights reserved.
Wave Energy Evaluations in Enclosed Seas
Abstract: - The present work has as main objective to evaluate the wave energy patterns in two enclosed seas. These are the Black and the Caspian seas. A medium term analysis of recent satellite data gives a first perspective of the wave and wind climate in the two sea basins. This allowed the identification of the areas that can be considered as most energetic. Wave prediction systems based on the third generation spectral model SWAN were implemented and validated in the two seas. A general picture on the wave conditions and the wave energy potential, in the basins of the Black and the Caspian seas is provided by the present work. The development of the wave energy devices for small amplitude waves is expected to be very dynamic in the near future. Following these tendencies, the problem of extracting this type of renewable energy in the two sea environments under consideration, most probable coupled in hybrid farms wind-waves, might become of actuality. Key-Words: - enclosed seas,...
Unlimited Energy Source: A Review of Ocean Wave Energy Utilization and Its Impact on the Environment
Indonesian Journal of Science and Technology, 2021
This paper aims to review the potential of wave energy in several countries, the wave energy converter technology that has been developed, and the impact of the installation of wave energy converter technology devices on the environment. In addition, it discusses the theoretical formulations and challenges in the development of energy converter technology in the future. Based on the detail analysis, the potential of ocean wave energy for alternative energy is very large but cannot be used optimally because the technology of wave energy converter that has been developed is still on a prototype scale. In addition, the impact of the use of ocean wave converters on the environment is insignificant compared with conventional energy. Finally, this study informs and recommends the government and the private sector to start investing in the ocean wave energy industry optimally in order to achieve a sustainable future.
A Review of Ocean Wave Power Extraction; the primary interface
International Journal of …, 2009
This paper aims to describe the importance of data, data collection methods, parameters to estimate the potential of wave energy and environmental impacts. The technical and economical status in wave energy conversion is outlined. Power and energy efficiency relationships are discussed. Many different types of wave-energy converters have been detailed. The progress in wave energy conversion in Malaysia is reviewed.
Volume 6B: Energy, 2013
A wave generation system was built and equipped in the wave energy and technology lab at the University of Louisiana at Lafayette (UL Lafayette). The system can generate dynamic waves to simulate the ocean conditions in the Gulf of Mexico. This paper explains the design, construction, and validation of such system. With the installation of the designed wave generation system, the ocean and wave model produced in the Gulf of Mexico can be reproduced and simulated in the lab, which allows us to explore the ocean and wave energy in that gulf through experimental and computational approaches. A workshop of wave energy technology was organized in the lab to reach a broad audience and look for potential partnerships with industry and research community.