Bibliografie tematiche / Ocean wave power

Letteratura scientifica selezionata sul tema "Ocean wave power"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 31 luglio 2024

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Articoli di riviste sul tema "Ocean wave power"

1

Wang, Juanjuan, Zhongxian Chen e Fei Zhang. "A Review of the Optimization Design and Control for Ocean Wave Power Generation Systems". Energies 15, n. 1 (23 dicembre 2021): 102. http://dx.doi.org/10.3390/en15010102.

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Ocean wave power generation techniques (converting wave energy into electrical energy) have been in use for many years. The objective of this paper is to review the design, control, efficiency, and safety of ocean wave power generation systems. Several topics are discussed: the current situation of ocean wave power generation system tests in real ocean waves; the optimization design of linear generator for converting ocean wave energy into electrical energy; some optimization control methods to improve the operational efficiency of ocean wave power generation systems; and the current policy and financial support of ocean wave power generation in some countries. Due to the harsh ocean environment, safety is another factor that ocean wave power generation systems will face. Therefore, before the conclusion of this review, a damping coefficient optimization control method based on the domain partition is proposed to improve the efficiency and safety of ocean wave power generation systems.
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2

Karunarathna, Harshinie, Pravin Maduwantha, Bahareh Kamranzad, Harsha Rathnasooriya e Kasun De Silva. "Impacts of Global Climate Change on the Future Ocean Wave Power Potential: A Case Study from the Indian Ocean". Energies 13, n. 11 (11 giugno 2020): 3028. http://dx.doi.org/10.3390/en13113028.

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This study investigates the impacts of global climate change on the future wave power potential, taking Sri Lanka as a case study from the northern Indian Ocean. The geographical location of Sri Lanka, which receives long-distance swell waves generated in the Southern Indian Ocean, favors wave energy-harvesting. Waves projected by a numerical wave model developed using Simulating Waves Nearshore Waves (SWAN) wave model, which is forced by atmospheric forcings generated by an Atmospheric Global Climate Model (AGCM) within two time slices that represent “present” and “future” (end of century) wave climates, are used to evaluate and compare present and future wave power potential around Sri Lanka. The results reveal that there will be a 12–20% reduction in average available wave power along the south-west and south-east coasts of Sri Lanka in future. This reduction is due mainly to changes to the tropical south-west monsoon system because of global climate change. The available wave power resource attributed to swell wave component remains largely unchanged. Although a detailed analysis of monthly and annual average wave power under both “present” and “future” climates reveals a strong seasonal and some degree of inter-annual variability of wave power, a notable decadal-scale trend of variability is not visible during the simulated 25-year periods. Finally, the results reveal that the wave power attributed to swell waves are very stable over the long term.
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Prasetyowati, Ane, Wisnu Broto e Noor Suryaningsih. "LINEAR GENERATOR PROTOTYPE WITH VERTICAL CONFIGURATION OF SEA WAVE POWER PLANT". Spektra: Jurnal Fisika dan Aplikasinya 6, n. 3 (30 dicembre 2021): 185–200. http://dx.doi.org/10.21009/spektra.063.05.

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There are three types of potential energy sources in the sea: ocean wave energy, tidal energy, and ocean heat energy. Ocean wave energy is a source of considerable energy. Sea waves are an up and down movement of seawater where the energy of sea waves is generated through the effect of air pressure movement due to fluctuations in ocean wave movements. The Ocean Wave Power Plant can use ocean wave energy to convert it into electrical energy. A linear generator is a device that can convert the mechanical energy of linear motion into electrical energy. The application of the ocean wave energy conversion technology, a linear generator system is an electrical machine that functions to convert the mechanical energy of linear motion into electrical energy using the principle of electromagnetic induction. Wave Energy Converter (WEC) technology has been developed with various methods. From the various existing concepts and designs, in general, WEC technology can be classified into three main types, namely Attenuator (horizontal configuration), Point Absorber (linear configuration), Terminator (damping configuration).
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Nugraha, I. Made Aditya, I. Gusti Made Ngurah Desnanjaya, Jhon Septin Mourisdo Siregar e Lebrina Ivantry Boikh. "Analysis of oscillating water column technology in East Nusa Tenggara Indonesia". International Journal of Power Electronics and Drive Systems (IJPEDS) 14, n. 1 (1 marzo 2023): 525. http://dx.doi.org/10.11591/ijpeds.v14.i1.pp525-532.

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Utilization of new renewable energy can be one solution to the limitations of fossil energy. Ocean wave energy is renewable energy caused by tides, and this potential can be utilized as a source of electrical energy in Indonesia, especially East Nusa Tenggara. This ocean wave power plant uses oscillating water column (OWC) technology. This wave energy is energy that can be developed and environmentally friendly and available every time. This paper analyzes the amount of energy produced by ocean waves using OWC technology in the East Nusa Tenggara. The benefits of this paper can be used as a reference for planning the construction of a wave power plant around East Nusa Tenggara. The method used is to measure the condition of ocean waves for a year and analyze the amount of energy and electrical power that can be generated by ocean waves with the use of OWC. The results of the analysis show that the use of ocean wave power plants with OWC technology in the waters of East Nusa Tenggara can produce the highest energy of 20,291,728.83 Joules and the lowest is 17,062.62 Joules. The electrical power generated is between 3,645.45 Watt to 4,274,314.37 Watt, and average of power density by ocean waves using OWC is 19,021.89 Watt/m<sup>2</sup>.
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Ningtyas, Alviani Hesthi Permata, Moh Jufriyanto, Ilham Arifin Pahlawan, Rilo Chandra Muhammadin, Rizkyansyah Alif Hidayatullah e Mohammad Dafid Cahyono. "Optimization of Ocean Wave Energy Harvesting with Pontoon Model– Single Pendulum". Jurnal Sains dan Teknologi Industri 21, n. 1 (8 dicembre 2023): 168. http://dx.doi.org/10.24014/sitekin.v21i1.25992.

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Renewable energy is energy that is needed in this modern era. The need for electrical energy in the present is a primary need, much of the sustainability of human life is supported by the existence of electrical energy. We are in Indonesia where Indonesia is a country consisting of many islands, and 77% of Indonesia's territory is water. By utilizing the energy contained in ocean waves to make electrical energy by using sea wave power plants. Ocean wave energy harvsting, single pendulum pontoon systems, are one of the alternatives to energy problems in this world. Simulations were carried out to determine the electrical energy to be obtained from the from ocean wave energy harvesting, single pendulum pontoon system. The simulation was carried out with matlab software by controlling the variable amplitude of ocean waves 0.0125m, 0.025m, 0.0375m, 0.05 m, and 0.0625m. From the simulation results, current, power and voltage data generated from the ocean wave power generation system were obtained. In this study, the results obtained were different amplitude levels that had a real influence on the results of current, power and voltage generated from ocean wave energy harvesting - single pendulum pontoon system using minitab software to process data with a complete random design method. Where the higher the amplitude of ocean waves, the higher the value of the results of currents, voltages and power generated by single pendulum pontoon model from ocean wave energy harvesting.
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Shao, Cheng, e Xao Yu Yuan. "Exploiting of Ocean Wave Energy". Advanced Materials Research 622-623 (dicembre 2012): 1143–46. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.1143.

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Sea waves are a very promising energy carrier among renewable power sources, and so many devices to convert wave energy into electrical energy have been invented. This paper discussed the fundamentals of ocean wave energy, summarized the wave energy research being conducted. And the purpose is to take refers to scientists and engineers in this area.
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7

Zhang, Li Zhen, Mao Yuan E, Shi Ming Wang e Yong Cheng Liang. "Feasibility Analysis on Oscillating Buoy Wave Power Device for Ocean Buoy". Applied Mechanics and Materials 291-294 (febbraio 2013): 606–9. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.606.

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When the oscillating buoy wave power device installed on the ocean buoy, the floater and the ocean buoy move up and down under the action of the waves. Therefore, whether there is a vertical relative displacement between the floater and the ocean buoy becomes a crucial problem of the wave power generation. Based on the wave theory, taking the vertical cylinder floater for example, introduced the wave force and the moving displacement of the floater，the relative displacement between the floater and three different sizes of ocean buoys under four different oceanic conditions was analyzed by MATLAB. The result indicates that the greater wave height, the greater relative displacement; the shorter wave period, the greater relative displacement; and the larger size of the ocean buoy, the greater relative displacement. So the electric power can be generated and the scheme is feasible.
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Madi, Madi, Muhammad Gufran Nurendrawan Bangsa, Bintari Citra Kurniawan, Andi Andi, Fathan Hafiz, Putty Yunesti, Amelia Tri Widya, Asfarur Ridlwan e Daniel Epipanus. "Experimental Study of The Fan Turbine Performance in Oscillating Water Column with Airflow System in Venturi Directional". WAVE: Jurnal Ilmiah Teknologi Maritim 17, n. 1 (23 agosto 2023): 34–42. http://dx.doi.org/10.55981/wave.2023.819.

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The Indonesian Ocean Energy Association has ratified the potential for ocean wave energy in Indonesia with a theoretical potential of 141,472 Megawatts. Unfortunately, this vast potential has not yet been utilized optimally in the Indonesian seas. Ocean wave energy technology has developed rapidly in various countries worldwide. One of the most famous ocean wave power generation technologies is the Oscillating Water Column (OWC), which utilizes airflow from ocean waves oscillating movement. Inspired by OWC, an innovative ocean wave power generation technology model was designed using a simpler fan turbine because it is directly integrated with an electric dynamo and an internal flow system in a venturi tube which can increase airspeed based on the concept of continuity theory. The experiment's results succeeded in creating up and down movements of ocean waves with a high tide of 15 cm and a low tide of 12 cm. Ocean wave oscillations can produce gusts of air with a speed of 1.56 m/s. The final result is obtained by model performance with an average turbine rotation speed of 42.191 rpm, an average electric voltage of 0.809 volts, and a more optimal turbine efficiency of 67.9%.
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Myrhaug, Dag, Bernt J. Leira e Håvard Holm. "Wave power statistics for individual waves". Applied Ocean Research 31, n. 4 (ottobre 2009): 246–50. http://dx.doi.org/10.1016/j.apor.2009.07.001.

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Aribowo, Widi, Achmad Imam Agung, Subuh Isnur Haryudo e Syamsul Muarif. "POWER GENERATOR FROM OCEAN WAVE ENERGY CONVERSION". Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer 11, n. 2 (31 ottobre 2021): 429–36. http://dx.doi.org/10.24176/simet.v11i2.5175.

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Abstract (sommario):
The need for electrical energy has increased every year. On the other hand, the largest power plants in Indonesia still use non-renewable energy sources such as coal and petroleum, while these non-renewable energy sources will eventually run out. To anticipate running out of this energy, a renewable energy source is needed. This existence will not run out even though it is consumed every day. Renewable energy that can be used for conversion into electrical energy in coastal areas is wave power. The waves that always crash on the shoreline can be used to drive turbines. The turbine rotates due to the crashing waves connected to a DC generator. It will convert mechanical energy into electrical energy. The electrical energy generated by the DC generator is used to charge the battery. The purpose of this research is the know-how to design a wave power generator and to determine the performance. The experimental method is used in this study. In the results, the generator works optimally during the day with the resulting voltage of 10.6 V to 10.7 V with rotation speed of 623 Rpm to With 710 Rpm.
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Tesi sul tema "Ocean wave power"

1

Noad, Imogen Frances. "Absorbing power from ocean waves : a mathematical approach to modelling wave energy converters". Thesis, University of Bristol, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.752773.

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Joubert, J. R. "An investigation of the wave energy resource on the South African Coast, focusing on the spatial distribution of the South West coast". Thesis, Link to the Internet, 2008. http://hdl.handle.net/10019.1/351.

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Xu, Xu. "Nonlinear dynamics of parametric pendulum for wave energy extraction". Thesis, University of Aberdeen, 2005. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=189414.

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A new concept, extracting energy from sea waves by parametric pendulor, has been explored in this project. It is based on the conversion of vertical oscillations to rotational motion by means of a parametrically-excited pendulor, i.e. a pendulum operating in rotational mode. The main advantage of this concept lies in a direct conversion from vertical oscillations to rotations of the pendulum pivot. This thesis, firstly, reviewed a number of well established linear and nonlinear theories of sea waves and Airy’s sea wave model has been used in the modelling of the sea waves and a parametric pendulum excited by sea waves. The third or fifth order Stokes’s models can be potentially implemented in the future studies. The equation of motion obtained for a parametric pendulum excited by sea waves has the same form as for a simple parametrically-excited pendulum. Then, to deepen the fundamental understanding, an extensive theoretical analysis has been conducted on a parametrically-excited pendulum by using both numerical and analytical methods. The numerical investigations focused on the bifurcation scenarios and resonance structures, particularly, for the rotational motions. Analytical analysis of the system has been performed by applying the perturbation techniques. The approximate solutions, resonance boundary and existing boundary of rotations have been obtained with a good correspondence to numerical results. The experimental study has been carried out by exploring oscillations, rotations and chaotic motions of the pendulum.
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Bracewell, Rob. "FROG and PS FROG : a study of two reactionless ocean wave energy converters". Thesis, Lancaster University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301820.

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Ridge, Alexander Nicholas. "Modelling and control of tubular linear generators for wave-power applications". Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709031.

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Li, Wei. "Numerical Modelling and Statistical Analysis of Ocean Wave Energy Converters and Wave Climates". Doctoral thesis, Uppsala universitet, Elektricitetslära, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-305870.

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Ocean wave energy is considered to be one of the important potential renewable energy resources for sustainable development. Various wave energy converter technologies have been proposed to harvest the energy from ocean waves. This thesis is based on the linear generator wave energy converter developed at Uppsala University. The research in this thesis focuses on the foundation optimization and the power absorption optimization of the wave energy converters and on the wave climate modelling at the Lysekil wave converter test site. The foundation optimization study of the gravity-based foundation of the linear wave energy converter is based on statistical analysis of wave climate data measured at the Lysekil test site. The 25 years return extreme significant wave height and its associated mean zero-crossing period are chosen as the maximum wave for the maximum heave and surge forces evaluation. The power absorption optimization study on the linear generator wave energy converter is based on the wave climate at the Lysekil test site. A frequency-domain simplified numerical model is used with the power take-off damping coefficient chosen as the control parameter for optimizing the power absorption. The results show a large improvement with an optimized power take-off damping coefficient adjusted to the characteristics of the wave climate at the test site. The wave climate modelling studies are based on the wave climate data measured at the Lysekil test site. A new mixed distribution method is proposed for modelling the significant wave height. This method gives impressive goodness of fit with the measured wave data. A copula method is applied to the bivariate joint distribution of the significant wave height and the wave period. The results show an excellent goodness of fit for the Gumbel model. The general applicability of the proposed mixed-distribution method and the copula method are illustrated with wave climate data from four other sites. The results confirm the good performance of the mixed-distribution and the Gumbel copula model for the modelling of significant wave height and bivariate wave climate.
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Garcia, Teran Jessica. "Positional Analysis of Wave Power : Applied at the Pacific Ocean in Mexico". Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-195854.

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The energy transition has started. The key is to find an alternative to uneconomical and unsustainable energy production. In this sense it is a challenge to develop renewable energy technologies suitable for the present and proper for the future. Uppsala University is driving the Lysekil project at its Division of Electricity. The aim is to design an environmentally friendly energy system with wave energy converters (WECs) that are simple and strong in design. However, little has been done to know more about its economically feasibility and the social impact of its benefits. Therefore, this research focuses on a positional analysis of a 3 MW Wave Power Park to understand the relevant aspects of implementing this kind of technology. The target area will be at Rosarito, Baja California at the Pacific Ocean in the Northeast of Mexico, a region experiencing increasing energy demand. This thesis combines technical, economical and social aspects. The technical part describes how the device works. The analysis is complemented by describing the current energy situation in Mexico and the social benefits of sustainable energy. Finally, the economical analysis is presented, it is focused on the perspective of the Merchant Power Plant. The review shows that wave power could be economically viable due to its high degree of utilisation. Energy diversification and security, economic and sustainable development, and clean energy are some of the advantages of wave power. Therefore, wave power is an interesting alternative for generating electricity in Mexico. However, the energy sector is highly subsidised, making it difficult for new technologies to enter the market without government participation. Another finding is that in the long run if the equipment cost decreases or subsidies are applied, the technology might be successfully implemented. Environmental consequences are described briefly, concluding that little is known and more research is needed. The environmental constraints, economic implications and uncertainties of a high energy future are disturbing. In that sense, renewable energy appears to be unequivocally better than rely to a greater extent on fossil fuels, in the sense that they offer a sustainable development and less environmental damage.
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Easton, Matthew Colin. "An assessment of tidal energy and the environmental response to extraction at a site in the Pentland Firth". Thesis, University of the Highlands and Islands, 2013. https://pure.uhi.ac.uk/portal/en/studentthesis/an-assessment-of-tidal-energy-and-the-environmental-response-to-extraction-at-a-site-in-the-pentland-firth(0ada05c2-3f33-463d-8f92-c9faad77a614).html.

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Shelf tidal streams are accelerated by coastal features, such as headlands and islands. In the search for sustainable forms of electricity generation, such locations may become attractive for tidal stream power. For many prospective sites, however, little is known about the intricacies of the local tidal dynamics: knowledge which is crucial to understanding the resource and the potential environmental consequences of its extraction. This thesis explores tidal stream energy in the Pentland Firth (Scotland, UK). This channel contains some of the most promising tidal stream energy sites in the world and is set to become host to the first large-scale arrays of tidal stream turbines, but its detailed characteristics were previously unknown. A hydrodynamic model was used to investigate the complex tidal dynamics of the Pentland Firth. This demonstrated, for the first time, the hydrodynamic mechanisms driving the exceptionally fast tidal currents through this channel. The model was then refined at a key site within the Pentland Firth, the Inner Sound. The results provided insight into complex flow characteristics, such as displacement and misalignment of peak flood and ebb tides, which must be considered when contemplating the exploitation of this energy resource. Tidal stream turbines were simulated in the hydrodynamic model. Artificial energy extraction was parameterised at the sub-grid-scale via added seabed drag. Turbine drag of varying magnitude was represented by a novel analytical model based on published characteristics of horizontal axis turbines. This new formulation reflects the non-linear dynamics of tidal turbine operation. Using the new turbine model, arrays of turbines were simulated within the Inner Sound. Complex interactions between the dynamics of energy extraction and flow required individual turbines to be parameterised in-concert with all other turbines in the array. This required extra effort, but offered enhanced insight into the behaviour of turbine arrays. Accounting for nonlinear turbine dynamics at high current speeds limited the magnitude of peak energy dissipation. Tidal stream velocities decreased both upstream and downstream of the extraction zone and were accelerated around it. At peak energy extraction, changes in tidal velocity were detectable several kilometres from the array, but were confined to the shallow waters of the Inner Sound and its environs. Implications for array modelling are discussed in the context of environmental impact assessments.
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Nie, Zanxiang Jack. "Emulation and power conditioning of outputs from a direct drive linear wave energy converter". Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609008.

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Rahm, Magnus. "Ocean Wave Energy : Underwater Substation System for Wave Energy Converters". Doctoral thesis, Uppsala universitet, Elektricitetslära, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-112915.

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This thesis deals with a system for operation of directly driven offshore wave energy converters. The work that has been carried out includes laboratory testing of a permanent magnet linear generator, wave energy converter mechanical design and offshore testing, and finally design, implementation, and offshore testing of an underwater collector substation. Long-term testing of a single point absorber, which was installed in March 2006, has been performed in real ocean waves in linear and in non-linear damping mode. The two different damping modes were realized by, first, a resistive load, and second, a rectifier with voltage smoothing capacitors and a resistive load in the DC-link. The loads are placed on land about 2 km east of the Lysekil wave energy research site, where the offshore experiments have been conducted. In the spring of 2009, another two wave energy converter prototypes were installed. Records of array operation were taken with two and three devices in the array. With two units, non-linear damping was used, and with three units, linear damping was employed. The point absorbers in the array are connected to the underwater substation, which is based on a 3 m3 pressure vessel standing on the seabed. In the substation, rectification of the frequency and amplitude modulated voltages from the linear generators is made. The DC voltage is smoothened by capacitors and inverted to 50 Hz electrical frequency, transformed and finally transmitted to the on-shore measuring station. Results show that the absorption is heavily dependent on the damping. It has also been shown that by increasing the damping, the standard deviation of electrical power can be reduced. The standard deviation of electrical power is reduced by array operation compared to single unit operation. Ongoing and future work include the construction and installation of a second underwater substation, which will connect the first substation and seven new WECs.
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Più fonti

Libri sul tema "Ocean wave power"

1

David, Ross. Power from the waves. Oxford: Oxford University Press, 1995.

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2

Claeson, Lennart. Energi från havets vågor. Stockholm: Energiforskningsnämnden, 1987.

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3

Tucker, M. J. Waves in ocean engineering: Measurement, analysis, interpretation. New York: E. Horwood, 1991.

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4

Tony, Lewis. Wave energy: Evaluation for C.E.C. London: Published by Graham & Trotman for the Commission of the European Communities, 1985.

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5

Gerdes, Louise I. Wave and tidal power. Detroit: Greenhaven Press, 2010.

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6

Engineering Committee on Oceanic Resources. Working Group on Wave Energy Conversion, a cura di. Wave energy conversion. Amsterdam: Elsevier, 2003.

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7

João, Cruz, a cura di. Ocean wave energy: Current status and future prepectives [i.e. perspectives]. Berlin: Springer, 2008.

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8

Environmental Technology Laboratory (Environmental Research Laboratories), a cura di. Delta-k acoustic sensing of ocean surface waves. Boulder, Colo: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Environmental Technology Laboratory, 1997.

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9

Environmental Technology Laboratory (Environmental Research Laboratories), a cura di. Delta-k acoustic sensing of ocean surface waves. Boulder, Colo: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Environmental Technology Laboratory, 1997.

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10

Environmental Technology Laboratory (Environmental Research Laboratories), a cura di. Delta-k acoustic sensing of ocean surface waves. Boulder, Colo: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Environmental Technology Laboratory, 1997.

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Capitoli di libri sul tema "Ocean wave power"

1

Mollison, Denis. "Wave Climate and the Wave Power Resource". In Hydrodynamics of Ocean Wave-Energy Utilization, 133–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82666-5_11.

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Vijayasankar, Vishnu, Tapas K. Das, Paresh Halder e Abdus Samad. "Power Take-Off Devices for Wave Energy Converters". In Ocean Wave Energy Systems, 355–64. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78716-5_11.

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Têtu, Amélie. "Power Take-Off Systems for WECs". In Handbook of Ocean Wave Energy, 203–20. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39889-1_8.

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Pires, H. N. Oliveira, e L. E. Vasconcelos Pessanha. "Wave Power Climate of Portugal". In Hydrodynamics of Ocean Wave-Energy Utilization, 157–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82666-5_12.

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Das, Tapas K., e Abdus Samad. "Wells Turbine as a Power Take-Off Mechanism for Wave Energy Converters". In Ocean Wave Energy Systems, 365–96. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78716-5_12.

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Blanco, Marcos, Jorge Torres, Miguel Santos-Herrán, Luis García-Tabarés, Gustavo Navarro, Jorge Nájera, Dionisio Ramírez e Marcos Lafoz. "Recent Advances in Direct-Drive Power Take-Off (DDPTO) Systems for Wave Energy Converters Based on Switched Reluctance Machines (SRM)". In Ocean Wave Energy Systems, 487–532. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78716-5_17.

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AbstractThis chapter is focused on Power Take-Off (PTO) systems for wave energy converters (WEC), being one of the most important elements since PTOs are responsible to transform the mechanical power captured from the waves into electricity. It presents Direct-Drive PTO (DDPTO) as one of the most reliable solutions to be adapted to some particular types of WEC, such as point absorbers. A discussion about modularity and adaptability, together with intrinsic characteristics of direct-drive PTOs, is also included. Among the different technologies of electric machines that can be used in direct-drive linear PTOs, switched reluctance machines (SRM) are described in further detail. In particular, the Azimuthal Multi-translator SRM is presented as a suitable solution in order to increase power density and reduce costs. Not only the electric machine, but also the associated power electronics are described in detail. The description includes the different configurations and topologies of power converters and the most appropriate control strategies. Finally, a superconducting linear generator solution is described, presenting it as a reliable alternative for the application of direct-drive PTOs. An example of concept and preliminary design is included in order to highlight the main challenges to be faced during this process.
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Guo, He, Yuying Zhou e Li Liu. "Power System Simulation of Ocean-Wave Device". In Theory, Methodology, Tools and Applications for Modeling and Simulation of Complex Systems, 253–64. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2669-0_28.

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Nielsen, Kim. "On the Experimental Investigation of a Wave Power Converter". In Hydrodynamics of Ocean Wave-Energy Utilization, 93–101. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82666-5_7.

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Oltedal, G. "Simulation of a Pneumatic Wave-Power Buoy with Phase Control". In Hydrodynamics of Ocean Wave-Energy Utilization, 303–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82666-5_26.

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Masuda, Yoshio. "An Experience of Wave Power Generator through Tests and Improvement". In Hydrodynamics of Ocean Wave-Energy Utilization, 445–52. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82666-5_36.

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Atti di convegni sul tema "Ocean wave power"

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Miyajima, Shogo, Toshihiko Maemura, Kunio Nakano e Takashi Kawaguchi. "Development of the coastal wave power generation device". In 2016 Techno-Ocean (Techno-Ocean). IEEE, 2016. http://dx.doi.org/10.1109/techno-ocean.2016.7890685.

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Rasool, Safdar, Kashem M. Muttaqi e Danny Sutanto. "Modelling Ocean Waves and an Investigation of Ocean Wave Spectra for the Wave-to-Wire Model of Energy Harvesting". In International Conference on Energy, Power and Environment. Basel Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/engproc2021012051.

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Mutsuda, Hidemi, Kenta Kawakami, Masato Hirata, Yasuaki Doi e Yoshikazu Tanaka. "Study on Wave Power Generator Using Flexible Piezoelectric Device". In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49071.

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We have developed a new wave power generator using flexible piezoelectric device (FPED) which is a hydro-electric ocean energy unit designed to convert renewable energy harnessed from ocean energy into usable electricity. In our previous works, the FPED consisting of piezo-electric polymer film (PVDF) is a way of harvesting electrical energy from the ocean power, e.g. tide, current, wave, breaking wave and vortex. The concept of this study is that the existing coastal and ocean structures (i.e. breakwater, submerged obstacle, reef in shallow water and submerged plate in deep water) are utilized as a wave power generator attached with the FPED to make a safety and disaster prevention. We examined the usefulness and electric performance of the FPED excited by waves in experiments.
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Myrhaug, Dag, Bernt J. Leira e Ha˚vard Holm. "Wave Power Statistics for Sea States". In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79132.

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The paper provides a bivariate distribution of wave power and significant wave height, and the statistical aspects of wave power for sea states are discussed. This is relevant for e.g. making assessments of wave power devices and their potential for converting energy from waves. The results can be applied to compare systematically the wave power potential at different locations based on long term statistical description of the wave climate.
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Ai, Junxiao, Hwan Lee, Changwei Liang e Lei Zuo. "Ocean Wave Energy Harvester With a Novel Power Takeoff Mechanism". In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34332.

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The potential for electricity generation from ocean wave energy in the US is estimated to be 64% of the total electricity generated from all sources in 2010. Over 53% of the US population lives within 50 miles of the coast (NOAA), which means ocean waves offer ready opportunity for harvesting power. This paper will present a details progress of developing an innovative ocean wave energy harvester, with adopting an innovative power takeoff mechanism named mechanical motion rectifier (MMR), which will directly convert the irregular oscillatory wave motion into regular unidirectional rotation of the generator. It marries the advantages of the direct and indirect-drive power takeoff methods, with a much higher energy conversion efficiency and enhanced reliability and compactness. Experiment has been carried out and the results verify that the novel power take-off mechanism improved the performance of wave energy harvester.
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Xu Hongda e Wu Xiujie. "Power spectrum estimation of the wave data by the maximum entropy method". In OCEANS '85 - Ocean Engineering and the Environment. IEEE, 1985. http://dx.doi.org/10.1109/oceans.1985.1160165.

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Imai, Yasutaka, Shuichi Nagata, Tengen Murakami e Da-Wei Chen. "Design of a hydraulic power take-off test rig for wave energy converters". In 2016 Techno-Ocean (Techno-Ocean). IEEE, 2016. http://dx.doi.org/10.1109/techno-ocean.2016.7890708.

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Kotake, Shigeo, Hiroyuki Douchi e Yasuyuki Suzuki. "Direct wave power transfer to transmission line under varing magnetic field along vibration manipulation function". In 2016 Techno-Ocean (Techno-Ocean). IEEE, 2016. http://dx.doi.org/10.1109/techno-ocean.2016.7890686.

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Sun, Tao, Jiangbin Zhao, Xinping Yan e Pengpeng Xu. "A New Flapping-Hydrofoil Wave Power Generating Unmanned Ocean Vehicle". In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54324.

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To solve the issue of the energy supply for unmanned ocean vehicles, the ocean wave energy as an abundant and widely distributed renewable clean energy, provides a feasible way. This paper proposes a flapping-hydrofoil method applied to unmanned ocean vehicles, harnessing the ocean wave energy to generate power. The structure of the flapping-hydrofoil wave energy harvester is presented, including the internal transmission device and the design of the hydrofoil. Then the operation modes (buoyancy drive and electric drive) and the application prospects (operating on and under the sea surface) of the flapping-hydrofoil wave energy ocean vehicle are also discussed, with the sincere expectations of further development of the ocean science and technology as well as offshore engineering.
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Li, Qiao, Syu Kuwada e Motohiko Murai. "Heave motion and electric power of multiple cylinders for wave energy converter considering the controlling force". In 2016 Techno-Ocean (Techno-Ocean). IEEE, 2016. http://dx.doi.org/10.1109/techno-ocean.2016.7890684.

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Rapporti di organizzazioni sul tema "Ocean wave power"

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Marcus Lehmann, Marcus Lehmann. Can we solve future energy and freshwater crises with the Power of Ocean Waves? Experiment, novembre 2013. http://dx.doi.org/10.18258/1688.

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LiVecchi, Al. Collaboration on OPT Design for Generating Electrical Power from Ocean Waves. Cooperative Research and Development Final Report, CRADA Number CRD-14-542. Office of Scientific and Technical Information (OSTI), giugno 2016. http://dx.doi.org/10.2172/1257330.

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