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Dissertations / Theses on the topic 'Wave buoy'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Tom, Tracey Hiroto Alena. "Development of Wave Prediction and Virtual Buoy Systems." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120845.

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2

Jansson, Elisabet. "Multi-buoy Wave Energy Converter : Electrical Power Smoothening from Array Configuration." Thesis, Uppsala universitet, Elektricitetslära, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-293689.

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This master thesis is done within the Energy Systems Engineering program at Uppsala University and performed for CorPower Ocean. Wave energy converters (WECs) are devices that utilize ocean waves for generation of electricity. The WEC developed by CorPower Ocean is small and intended to be deployed in an array. Placed in an array the different WECs will interact hydrodynamically and the combined power output is altered. The aim of this thesis is to model and investigate how the array configuration affects the electric power output. The goal is to target an optimal array layout for CorPower Oce

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3

Lindroth, [formerly Tyrberg] Simon. "Buoy and Generator Interaction with Ocean Waves : Studies of a Wave Energy Conversion System." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-160085.

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On March 13th, 2006, the Division of Electricity at Uppsala University deployed its first wave energy converter, L1, in the ocean southwest of Lysekil. L1 consisted of a buoy at the surface, connected through a line to a linear generator on the seabed. Since the deployment, continuous investigations of how L1 works in the waves have been conducted, and several additional wave energy converters have been deployed. This thesis is based on ten publications, which focus on different aspects of the interaction between wave, buoy, and generator. In order to evaluate different measurement systems, th

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4

Olsson, Magnus, and Erika Granström. "Optimal control of wave energy buoy by predicting surface elevation." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297762.

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Wave energy is an energy source of great interest due to it being the most concentrated form of renewable energy. A profitable method for wave energy extraction is however yet to be found and this project aims to contribute to the progress. A method for making short-term predictions of the ocean surface elevation has been suggested for improved efficiency and such a method is presented here. The project is carried out in two dimensions on the numeric platform MATLAB. Simulations of a Wave Energy Converter show that the power output seems to increase when the developed prediction method is util

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5

Wingeart, Karen M. "Validation of operational global wave prediction models with spectral buoy data." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2001. http://handle.dtic.mil/100.2/ADA401720.

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Thesis (M.S. in Meteorology and Physical Oceanography) Naval Postgraduate School, December 2001.<br>"December 2001". Thesis advisor(s): Herbers, Thomas H.C.; Wittmann, Paul A. Includes bibliographical references (p. 39). Also available online.

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6

Tyrberg, Simon. "Studying Buoy Motion for Wave Power : Experiments at the Lysekil Research Site." Licentiate thesis, Uppsala University, Electricity, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-113301.

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<p>Since 2002, the Division for Electricity at Uppsala University has been running the Lysekil project. The project is an attempt to construct and evaluate a technology for extracting electrical energy from the motion of ocean waves. The idea is to let this up-and-down motion drive a linear generator. A buoy moves thus in the waves, and is connected through a line to the generator at the sea floor. Three such wave energy converters, L1, L2, and L3, and a marine substation have been deployed in the ocean southwest of Lysekil on the Swedish west coast, at the Lysekil research site. Measuring equ

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7

Da, Pra Elisabetta. "Modellazione degli ancoraggi del dispositivo Resen Wave Buoy con il software DualSPHysics." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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L'elaborato si concentra dapprima sull'energia ricavabile dal mare, sulla classificazione dei Wave Energy Converters e sulle tipologie di ancoraggio attualmente esistenti. Successivamente viene introdotto il software DualSPHysics, che è stato utilizzato per modellare il convertitore Resen Wave Buoy e il suo sistema di ancoraggio, nelle condizioni di mare nei pressi della piattaforma Viviana, con tempo di ritorno di dieci anni. Inoltre, a valle di un'illustrazione del funzionamento del software stesso e del procedimento seguito nella modellazione del dispositivo e degli ancoraggi, è stata

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8

Eriksson, Mikael. "Modelling and Experimental Verification of Direct Drive Wave Energy Conversion : Buoy-Generator Dynamics." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7785.

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This thesis is focused on development of models and modelling of a wave energy converter in operation. Through the thesis linear potential wave theory has been used to describe the wave-buoy interaction. The differences lie in the generator models, in the simplest model the generator is a mechanical damper characterized by a damping factor. In the most advanced generator model the magnetic fields is calculated the by a FE-method, which gives detailed description of the electric properties and the effect it has on the buoy dynamics. Moreover, an equivalent circuit description of the generator h

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9

Savin, Andrej. "Experimental Measurement of Lateral Force in a Submerged Single Heaving Buoy Wave Energy Converter." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-159519.

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The search for new solutions for the generation of energy is becoming more and more important for our future. Big arguments and disagreements on e.g. the questions of gas transport or the dependence on energy supplied by other countries raise demands on the development of new forms of alternative energy resources. Wave power is one of the main sources of renewable energy due to the high power density stored in ocean waves. Nevertheless, the dynamic forces of waves are so large that serious questions popped up on how to design a system which could work even in an unfavourable wave climate or co

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10

Draycott, Samuel Thomas. "On the re-creation of site-specific directional wave conditions." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/31472.

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Wave tank tests facilitate the understanding of how complex sea conditions influence the dynamics of man-made structures. If a potential deployment location is known, site data can be used to improve the relevance and realism of the test conditions, thus helping de-risk device development. Generally this data is difficult to obtain and even if available is used simplistically due to established practices and limitations of test facilities. In this work four years of buoy data from the European Marine Energy Centre is characterised and simulated at the FloWave Ocean Energy Research Facility; a

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11

Liquori, Riccardo. "Numerical and experimental study of a heaving buoy for modelling a wave energy converter for WECfarm project." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Waves from Ocean are a huge unexploited energy resource, and the potential for extracting energy from waves is significant. Oceanic surface waves carry a much higher energy density, sometimes by two orders of magnitude, than solar and wind. For this reason, different Wave Energy Converter (WEC) designs have been developed in recent years. Among all the technologies available to convert wave energy, the point-absorber is one of the most promising solutions today, due to its ease of both fabrication and installation. In most cases, the WEC will not be installed in single units but arranged in pa

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12

Pieroni, Mario. "Experimental testing of a heaving buoy for modelling of a wave energy converter for the WECfarm project." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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L'energia delle onde ha il potenziale per svolgere un ruolo significativo nel futuro sistema energetico, contribuendo alla riduzione delle emissioni di carbonio. Le onde di superficie oceaniche hanno una densità di energia molto più alta, a volte di due ordini di grandezza, rispetto al sole e al vento. Le stime mostrano che l'energia delle onde oceaniche può realisticamente fornire circa il 10% del fabbisogno di elettricità del mondo. Questo potenziale unito ad una buona prevedibilità e costanza rendono l'energia delle onde una soluzione allettante. Sfruttare l'energia delle onde oceaniche, tu

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13

Gravråkmo, Halvar. "Buoy Geometry, Size and Hydrodynamics for Power Take Off Device for Point Absorber Linear Wave Energy Converter." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-220344.

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Wave energy converters of point absorber type have been developed and constructed. Full scale experiments have been carried out at sea and electricity has been successfully delivered. Linear permanent magnet generators together with a subsea substation and buoys of various geometric shapes have been investigated theoretically and experimentally. The design has in large extent an electronic approach, keeping the mechanical part of it as simple as possible, due to the long life span and reliability of electric components. Because of the nature of a linear generator, the internal translator with

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14

Healy, Strömgren William. "Automatic Adjustment of the Floatation Level for a Tight-moored Buoy." Thesis, Uppsala University, Department of Earth Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88883.

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<p>Denna rapport ger förslag på olika metoder att automatiskt justera flytläget på en statiskt förankrad boj, en överblick över de processer som styr ändringen av vattennivån och en statisktisk analys på vattennivåförändringarna vid Stockholm, Kungsholmsfort och Kungsvik.</p><p>Beroende på vattenivåns variation finns olika metoder för justering. Områden med små variationer av vattennivå lämpar det sig bäst utan någon som helst justering av flytläget. Områden med inte för stora tidvattensförändringar bör justeras med ett system bestående av vinsch, växellåda med en utväxling på 10 000:1, en 12

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15

Paxton, Charles Hugh. "Atmospheric and Ocean Conditions and Social Aspects Associated with Rip Current Drownings in the United States." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5096.

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The purpose of this research is to provide a better understanding of the physical and social aspects of rip currents in ocean areas that will lead to better forecasts, better governmental policies in beach areas, and ultimately to save lives. A rip current is a nearshore circulation in which breaking waves run up onto the beach then retreat rapidly in deeper channels back toward the sea. Rip currents pose a significant threat to beachgoers and can pull even the strongest swimmers out to sea. The primary factors associated with rip current formation on unarmored beaches are variations in the lo

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16

Gomes, Junior Gabriel D’Annunzio. "Aprimoramento do clima de ondas do SMC como subsídio ao estudo da erosão no litoral de Pernambuco." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/16527.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-04-13T12:35:48Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação_Mestrado_Gabriel_Dannunzio_Gomes_Junior.pdf: 5445671 bytes, checksum: 0fbfa28afa66b0dd5cc8217c1d6c2418 (MD5)<br>Made available in DSpace on 2016-04-13T12:35:48Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação_Mestrado_Gabriel_Dannunzio_Gomes_Junior.pdf: 5445671 bytes, checksum: 0fbfa28afa66b0dd5cc8217c1d6c2418 (MD5) Previous issue

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17

Rivai, Kathryn. "Data analysis of experimental test results of a wave energy converter for the WECfarm project." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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There are different technologies to exploit marine energy, one of these is wave energy converters (WEC), that use the energy of the waves to produce electricity. To maximize the power production, the WECs are placed in arrays with specific geometric configurations, therefore it is important to study the interaction between the WECs (near-field interactions) and the effects of the WEC array on the waves behind the array (far-field effects). A single ‘Master WEC’ is being developed, tested and fine-tuned prior to the array layout tests. The aim is to investigate and improve the behavior of the

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18

Veras, Guimarães Pedro. "Surfaces de mer et dissipation d'énergie." Thesis, Ecole centrale de Nantes, 2018. http://www.theses.fr/2018ECDN0001/document.

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Les formulations et modèles de vagues stochastiques sont les outils les plus traditionnels pour l’évaluation et la prévision des états de mer. Cependant, la prise en compte de nombreux processus physiques essentiels à l’évolution des vagues reste souvent lacunaire dans ces types d’approches. Une des raisons possible est notamment que peu d’observations viennent documenter ces processus. La dissipation des ondes est ainsi mal quantifiée par les méthodes d'observation traditionnelles dans tout l’éventail des conditions océaniques. Dans ce contexte, le travail présenté dans cette thèse explore pl

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19

Berg, Caroline. "Validation of the WAM-model over the Baltic Sea." Thesis, Uppsala University, Department of Earth Sciences, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9139.

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<p>In order to understand how waves influence the exchange of momentum, latent heat and other parameters, between the ocean surface and the atmosphere, one can use models. A coupling between a wave model and an atmospheric regional climate model, for the Baltic Sea, will be performed at the Meteorology Institute in Uppsala University. The wave model is a state of the art, third generation wave model called WAM.</p><p>The new version of the WAM model (cycle 4) needs to be validated. The aim of this thesis is to perform this validation and also to investigate what meteorological forcing one shou

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20

Tyrberg, Simon. "Offshore Surveillance of Wave Buoys." Thesis, Uppsala universitet, Elektricitetslära och åskforskning, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-109559.

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To gain further knowledge about the motion of the wave buoys involved in the Islandsberg project for wave power, a surveillance system has been designed. The base for the system consists of a lattice tower to be placed on one of two islets southwest of Lysekil: Klammerskären. The distance from the islets to the wave energy research park and the wave buoys is between 150 and 300 meters. The tower will be 12 meters high and in it a network camera will be mounted, together with a small wind turbine, two solar panels, a battery bank and equipment for communication with land. A signal cable present

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21

Garnaud, Xavier. "Wave Energy Extraction from buoys." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/50603.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2009.<br>Includes bibliographical references (p. 187-190).<br>Different types of Wave Energy Converters currently tested or under development are using the vertical movement of floating bodies to generate electricity. For commercial applications, arrays have to be considered in order to produce a significant power. In this thesis, we investigate the interaction between floating buoys from an hydrodynamic point of view. The objective is to derive general features of energy extraction without resorting t

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22

Colbert, David B. "Field evaluation of ocean wave measurements with GPS buoys." Thesis, Monterey, California. Naval Postgraduate School, 2010. http://hdl.handle.net/10945/5117.

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Approved for public release; distribution is unlimited<br>An intercomparison of Datawell accelerometer buoys, Datawell GPS buoys, and prototype GPS buoys was conducted to determine the viability of using off-the-shelf GPS receivers to measure ocean surface waves. In the experiment, conducted off the coast of California near Bodega Bay, clusters off Datawell and prototype GPS buoys were deployed to collect ocean surface wave measurements. The first phase of the research was an intercomparison of wave measurements from a Datawell accelerometer sensor, the Magellan MMCX GPS receiver and the

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23

Wang, Mei. "Comparison of Wave Parameters and Spectra between WERA HF Radars and Tri-Axys Buoys." Scholarly Repository, 2008. http://scholarlyrepository.miami.edu/oa_theses/173.

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To establish the credibility of surface wave measurements from two phased-array WERA HF (High Frequency) radars, SEACOOS (SouthEast Atlantic Coastal Ocean Observing System) funded the Mini-Waves experiment from March to May, 2005. For this study, the surface wave parameter (significant wave height) and directional wave spectrum obtained from two WERA radars were compared with those obtained from two Tri-Axys buoys during the same period. The Wyatt (1990) method was used to obtain the directional wave spectra, and significant wave heights were obtained by integrating the directional wave spectr

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24

Kalpaktsoglou, Dimitrios. "Power factor correction for stand-alone wave energy conversion buoys." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519591.

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25

Laird, Anne Marie. "Observed statistics of extreme waves." Thesis, Monterey, Calif. : Naval Postgraduate School, 2006. http://bosun.nps.edu/uhtbin/hyperion.exe/06Dec%5FLaird.pdf.

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Thesis (M.S. in Physical Oceanography)--Naval Postgraduate School, December 2006.<br>Thesis Advisor(s): Thomas H. C. Herbers. "December 2006." Includes bibliographical references (p. 49-50). Also available in print.

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26

McIntyre, Stephen A. "WAVE AND CURRENT OBSERVATIONS IN A TIDAL INLET USING GPS DRIFTER BUOYS." Monterey, California. Naval Postgraduate School, 2013. http://hdl.handle.net/10945/32869.

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The Wave Resolving Drifter (WRD) Buoy, developed at NPS, was refined by adding an accelerometer and utilizing horizontal Doppler velocity measurements to better resolve the wave surface motions. The WRD Buoy was validated against a Datawell Waverider-GPS buoy by comparing bulk wave statistics, wave energy spectra and wave directional spectra. The validation was performed in deep water, offshore of Monterey Bay, CA. Horizontal measurements from Doppler velocities showed improved capability, particularly in the wind-wave band. Vertical measurements were significantly improved through the additio

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27

Quintana, Julio. "Small-scale wave motion energy generator : Technical & Business parallel development." Thesis, KTH, Kraft- och värmeteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-158975.

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This MSc thesis was a project performed in a start-up that develops sustainable devices to exploit renewable energies, specifically in the field of energy harvesting in small scale. The objective of the thesis is to demonstrate the importance of developing the technical side of a project together with the development of the market. The idea is to enhance the success possibilities and work to get to the market as fast as possible with a minimum sellable product using the resources as efficiently as possible. The market analysis was the first step to be performed to understand what the start-up

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28

De, Lauretis Laura. "Optimization of a wave energy converter for the WECwakes II project." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Wave energy has the potential to play a significant role in the future energy system. Estimates show that ocean wave energy can realistically provide about 10% of the world's electricity needs. Exploiting the energy of ocean waves, however, addresses several important challenges that have hitherto prevented the wave energy industry from being blocked. Therefore, several Wave Energy Converter (WEC) projects have been developed in recent years. In most cases, the WEC will not be installed in single units but will be installed in parks to extract an important amount of wave power. In the former W

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29

Bennich, David, William Bredberg, Jimmy Olsson, Stenberg Louis Rulewski, Malin Smith, and Johnny Söderqvist. "En jämförelse mellan fjärranalystekniker och vågbojar för mätning av oceanografiska parametrar i svenska vatten." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-323069.

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För övervakning av svenska vatten krävs noggranna mätningar av oceanografiska parametrar såsom våghöjd, vågriktning, ytvattentemperatur och ytströmmar. Mätdata för parametrarna samlas in av Sveriges Meteorologiska och Hydrologiska Institut (SMHI) och används till prognoser, sjöfart samt forskning. I denna studie undersöktes möjligheten att ersätta eller komplettera vågbojarna av modellen Directional Waverider MkIII som SMHI använder idag, med ny kommersiellt tillgänglig fjärranalysteknik. Projektet begränsades till att studera två högfrekvens-radartekniker och en X-bandradar. Studien är platss

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30

Hsieh, Chung-Ping. "Effect of internal solitary waves on mine detection in the western Philippine Sea east of Taiwan." Thesis, Monterey, Calif. : Naval Postgraduate School, 2006. http://bosun.nps.edu/uhtbin/hyperion.exe/06Dec%5FHsieh.pdf.

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Thesis (M.S. in Phycsical [Physical] Oceanography)--Naval Postgraduate School, December 2006.<br>Thesis Advisor(s): Peter C. Chu. "December 2006." Includes bibliographical references (p.115-117). Also available in print.

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31

Helkin, Steven Alexander. "Design and optimization of a wave energy harvester utilizing a flywheel energy storage system." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4774.

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This thesis details the design and optimization of a buoy used to collect renewable energy from ocean waves. The proposed buoy is a point absorber--a device that transforms the kinetic energy of the vertical motion of surface waves into electrical energy. The focus of the research is on the mechanical system used to collect the energy, and methods to improve it for eventual use in an actual wave energy harvester. A flywheel energy storage system was utilized in order to provide an improved power output from the system, even with the intermittent input of force exerted by ocean waves. A series

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Howorth, Carole, M. Wright, P. Westhead, and D. Allcock. "Waves of Professionalization Before, During and After Management Buyouts and Buy-ins of Private Family Firms." Enterprise Research Centre, 2015. http://hdl.handle.net/10454/17156.

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Yes<br>We explore the process of professionalization pre- and post- buyout (MBO) or buyin (MBI) of former private family firms using longitudinal evidence from six UK family firms undergoing an MBO/I in 1998. Professionalization behaviour was monitored up to 2014. Previous studies have conceptualized professionalization as a threshold to be attained. We demonstrate that professionalization is a complex process occurring in waves, triggered by changes in firm ownership and management. Waves of professionalization converge during the MBO/I process. Buyouts provide a funnelling mechanism

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Champi, Farfan David. "Estudo do comportamento estatico e dinamico de um Riser vertical com boia de subsuperficie." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263664.

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Orientador: Celso Kazuyuki Morooka<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica e Instituto de Geociencias<br>Made available in DSpace on 2018-08-04T17:58:55Z (GMT). No. of bitstreams: 1 ChampiFarfan_David_M.pdf: 3228003 bytes, checksum: 8b3ed290e87307aa0cc1afcdd9c2ecf3 (MD5) Previous issue date: 2005<br>Resumo: Na atualidade as descobertas de óleo a grandes profundidades no mar têm levado ao desenvolvimento de campos localizados numa profundidade aproximada de 3000m, sendo então o sistema de Riser Híbrido Auto-Sustentável uma alternativa at

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Jhuang, Chong-Lin, and 莊崇霖. "Studying Buoy Motion of Sea Wave Power Generation." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/3werb8.

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碩士<br>國立高雄海洋科技大學<br>海事資訊科技研究所<br>102<br>In this study, the Computational Fluid Dynamics (CFD) was used for the analysis of buoys effects on the sea wave integration power generation. The advantages of the sea wave integration power generation produces continuous "kinetic energy" through sea waves without the huge waves. We used a concept of "Float lever mechanics" in which the buoys inspires a huge collection of kinetic energy through sea waves. To verify the proposed model, the present results show good agreements with experiment results in which the design generator average generating capaci

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LUO, YU-MEI, and 羅玉玫. "Study on the Effect of Buoy-Type Wave Power Convert." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/269z3b.

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碩士<br>國立高雄海洋科技大學<br>海事資訊科技研究所<br>103<br>The main purpose of the present study aims at the establishment of a numerical analysis of buoys effects on the sea wave integration power generation. The advantages of the sea wave integration power generation have four concepts. First, the design of the buoys is easy to produce continuous "kinetic energy" through sea waves without the huge waves. Second, we used a concept of "Float lever mechanics" in which the buoys inspires a huge collection of kinetic energy through sea waves. Third, the key issue is the design of "Inertia flywheel kinetic energy" f

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Dai, Guang-Yi, and 戴光翊. "A Study on Wave Sheltering of Single-mooring Spar Buoy Fences." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/97399148777072566389.

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碩士<br>國立臺灣大學<br>海洋研究所<br>95<br>The purpose of this paper is to estimate the wave sheltering of single-mooring spar buoy fences for the sandy coast protection. The spar buoy was constructed by a semi-closed pipe, which was designed by Liang(2000),Huang(2002) proposed a theoretical solution for the transmission coefficient of a one-layer fixed cylinder fence. Following Huang’s equation, a modified one for a one-layer spar buoy fence is deduced. The porosity ,which is the ratio of the gap and buoy spacing As the porosity increases, the transmission coefficient will increase. Experimental results

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楊朝棟. "Hydrodynamic Performances of shape optimization of two-buoy wave energy converters." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/3vyrjx.

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碩士<br>國立高雄海洋科技大學<br>海事資訊科技研究所<br>105<br>This study used computational fluid dynamics (CFD) to analyze the performances of an air-blower wave power generation device with the shape optimization of buoy wave energy converter, and simulated the process of waves acting on the double buoys to produce vertical kinetic energy and subsequently applying the energy to a wave power generator set to generate electricity. Notably, we can compute the average power based on the movement and output force of buoy over a period of time. The shape of buoys without smoothing and with optimal are used to compare t

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Su, Yu-Fong, and 蘇郁峰. "Experimental study on the efficiency of buoy array to absorb wave power." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6mbu3t.

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碩士<br>國立臺灣海洋大學<br>河海工程學系<br>106<br>This study investigates the influence of the change of the covered length and the shelter rate on the motion characteristics of the floating body affected by the damping coefficient of the array type floating wave power generation system. Explore the energy of reflected wave and the transmitted wave as well as evaluate the energy absorption of floating body. Through a hydraulic model test, a single direction regular wave test is performed on a water tank with a water depth of 0.5 meter in this study. The rate of amplitude operation, the reflected wave energy

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Zanchetta, Tullio. "Wavedock buoy: disrupting wave energy application for remote offshore operations in the military industry." Master's thesis, 2020. http://hdl.handle.net/10362/114636.

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Climate change is the defining challenge of our time, with Carbon Dioxide representing the most important long-lived forcing of this emergency. Oceans are increasingly recognized as indispensable for addressing this global challenge, and the yet unexploited energy generated by waves is the key for a sustainable future. Through this research project our team provides an effective and environmentally driven solution for a better execution of remote offshore operations by harnessing all the potential of wave energy.

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Cerioni, Leonardo. "Wavedock buoy: disrupting wave energy application for remote offshore operations in the sea-mining industry." Master's thesis, 2020. http://hdl.handle.net/10362/114638.

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Climate change is the defining challenge of our time, with Carbon Dioxide representing the most important long-lived forcing of this emergency. Oceans are increasingly recognized as indispensable for addressing this global challenge, and the yet unexploited energy generated by waves is the key for a sustainable future. Through this research project our team provides an effective and environmentally driven solution for a better execution of remote offshore operations by harnessing all the potential of wave energy. More particularly, the implementation of this solution will overcome the numer

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Bellis, Francesco de. "Wavedock buoy: disrupting wave energy application for remote offshore operations in the oil and gas industry." Master's thesis, 2020. http://hdl.handle.net/10362/114637.

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Climate change is the defining challenge of our time, with Carbon Dioxide representing the most important long-lived forcing of this emergency. Oceans are increasingly recognized as indispensable for addressing this global challenge, and the yet unexploited energy generated by waves is the key for a sustainable future. Through this research project our team provides an effective and environmentally driven solution for a better execution of remote offshore operations by harnessing all the potential of wave energy.

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Benevides, Francis Leo. "Estimating ocean wave directional spectra from measurements of water particle motion by a surface buoy acoustic ranging system." Thesis, 1990. http://hdl.handle.net/10125/10001.

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Hansen, Demont. "Implementation And Validation Of A Virtual Buoy Network For The Island Of Oahu Utilizing Nested Third Generation Wind Wave Models." Thesis, 2005. http://hdl.handle.net/10125/10534.

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Beatty, Scott J. "Analysis and development of a three body heaving wave energy converter." Thesis, 2009. http://hdl.handle.net/1828/1401.

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A relative motion based heaving point absorber wave energy converter is being co-developed by researchers at the University of Victoria and SyncWave Systems Inc. To that end---this thesis represents a multi-faceted contribution to the development effort. A small scale two-body prototype wave energy converter was developed and tested in a wave tank. Although experimental problems were encountered, the results compare reasonably well to the output of a two degree of freedom linear dynamics model in the frequency domain. A two-body wave energy converter design is parameterized as a basis for a

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Lüer, Juliana. "Design and Development of a Measurement System to Track the Motion of a Point Absorber." Thesis, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-416222.

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Because of climate change renewable energy field is becoming more and more relevant. Renewable energy can be gained from the sun, from wind but also from ocean waves. To support the research and development in this field reliably measured wave data is collected through a measurement system that shows the exact position of a buoy. The project consists of the design, development and implementation of such a measurement system. It is divided into three subtasks: The power supply based on a solar panel and a battery The measurement part including a sensor and its implementation to the circuit Th

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Fiander, David. "A wave energy converter for ODAS buoys (WECO)." Thesis, 2018. https://dspace.library.uvic.ca//handle/1828/9011.

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Ocean Data Acquisition System (ODAS) buoys are deployed in many seas around the world, a subset of these are wave monitoring buoys. Most are powered by solar panels. Many of these buoys are subjected to movement from waves, and could benefit from a wave energy converter specifically designed for ODAS buoys (WECO). A particular buoy that could benefit from this technology is the TriAXYS wave buoy [1]. This thesis discusses the development of a self-contained WECO that would replace one of the buoys four on board batteries, and harvest energy from the buoy motion to charge the remaining three ba

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JHANG, YI-KUAN, and 張益寬. "Analysis of the Performance of Wave Pass Two Buoys-Type Wave Energy Converter." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/41760311326741331301.

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碩士<br>國立高雄海洋科技大學<br>海事資訊科技研究所<br>104<br>This study used computational fluid dynamics to analyze the performance of an air-blower tidal power generation device with buoy wave energy converter, and simulated the process of waves acting on the double buoys to produce vertical kinetic energy and subsequently applying the energy to an ocean wave electricity generator set to generate electricity. The movement of buoy motion in the vertical direction can produce a stable output of power into the cylinder, then the pressurizer is intended to perform the output power of stabilization successfully and s

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Hung, Chien-Ju, and 洪建如. "A Study on Wave Sheltering of Singly-moored Spar Buoys." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/07126781205876412152.

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碩士<br>國立臺灣大學<br>海洋研究所<br>96<br>The purpose of this paper is to estimate the wave sheltering of singly-moored spar buoy under different wave conditions, it is discussed that the singly-moored spar buoy consumes the percentage of wave energy. 　The spar buoy was constructed by a semi-closed pipe, which was designed by Liang(2000). The theory regards Morison formula as the foundation analyzed. First, unlock after moving the spar buoy in an angle under the quiet surface of water, calculate the power of average consumption of half-period. And then calculate the way through the indirectness of takin

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Ruei-JingLin and 林芮菁. "Monitoring Oceanic Signals using GPS Buoys: Meteotsunami and Significant Wave Height." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/59500567436943463042.

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碩士<br>國立成功大學<br>測量及空間資訊學系碩博士班<br>100<br>Global Positioning System (GPS) buoys have been demonstrated to collect sea level data effectively and economically. By comparing to tide gauge records, GPS buoys provide high-frequency oceanic signals with periods of a few seconds to a few minutes that cannot be detected from 6-minute tide gauge records. In the study, GPS buoys were used to measure sea level variations in Aping harbor, Tainan and to study meteotsunami and significant wave height (SWH). Since meteotsunami may be amplified by harbor resonance, two GPS buoys were deployed inside and outsid

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Colby, Mitchell. "Optimizing ballast design of wave energy converters using evolutionary algorithms." Thesis, 2012. http://hdl.handle.net/1957/29043.

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Wave Energy Converters (WECs) promise to be a viable alternative to current electrical generation methods. However, these WECs must become more efficient before wide-scale industrial use can become cost-effective. The efficiency of a WEC is primarily dependent upon its geometry and ballast configuration which are both difficult to evaluate, due to slow computation time and high computation cost of current models. In this thesis, we use evolutionary algorithms to optimize the ballast geometry of a wave energy generator using a two step process. First, we generate a function approximator (neural

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