Дисертації з теми "Analysis of wind potential"
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Khatab, Abdul Mouez. "Performance Analysis of Operating Wind Farms." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-331783.
Повний текст джерелаSundström, Oskar. "Multi-Criterion Macro-Siting Analysis of Offshore Wind Farm Potential in Sweden." Thesis, KTH, Geoinformatik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301667.
Повний текст джерелаMerkai, Christina. "Tidal park within offshore wind parks : An analysis for the potential use of tidal kites within the Aberdeen offshore wind farm." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-240594.
Повний текст джерелаHavsbaserad vind har visat sig vara en av de mest tillförlitliga och rena energikällorna under senare år. Inom denna industri har en betydande tillväxt skett, med en ökning med 101% år 2017 jämfört med 2016. Detta relaterar till behovet av säkra elförsörjningssystem, som kan användas för att styra havsbaserade vindraftverksparker under urkoppling från huvudnätet. Numera används dieselgeneratorer som reservkälla till havsvindkraftverk i nödsituationer. Men när den marina förnybara energiindustrin utvecklas, har tidvattenkraftverk potential att ersätta dieselgeneratorer och ge ett mer hållbar och miljövänlig långtidslösning. Dessutom har de potential att producera extra el, som antingen kan lagras för framtida användning eller kopplas direkt till distributionsnätet. Denna rapport erbjuder en teknisk, finansiell och miljömässig bedömning av en potentiell tidvattenkraftverkspark kopplad till en havsvindpark. Jämförelse med alternativa källor för strömförsörjning genomförs också. Tre alternativa platser med hög vindstyrka och stora tidvattenresurser längs Storbritanniens kust och fyra olika grupper av tidvattenanordningar utvärderas och jämförs med hjälp av kartor och andra tillgängliga marina data. Aberdeen vindkraftpark och tidvattendrakar väljs för ytterligare undersökning och kostnadsanalys. Sju tidvattendrakar med genomsnittlig effekt på 700 kW och nominell effekt 3,5 MW kan ge tillräckligt med el till havsvindkraftverk i tre månader utan nätförbindelse, medan de också kan ge överflöd av energi dagligen när strömavbrott inte förekommer. Den totala kostnaden för projektet skulle vara cirka 301,6 MSEK. På grund av läget idag på elmarknaden för förnybar energi, är projektet inte genomförbart utan höga investeringsrisker. Men den här studien bör utvärderas igen inom en snar framtid när kostnaden för tidvattenanordningen har minskat.
Xu, Xiao Mark. "Developing a GIS-Based Decision Support Tool For Evaluating Potential Wind Farm Sites." The University of Waikato, 2007. http://hdl.handle.net/10289/2348.
Повний текст джерелаBaak, Werner. "TECHNO-ECONOMIC ANALYSIS OF REPOWERING POTENTIAL IN NORTH RHINE-WESTPHALIA, GERMANY." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-398228.
Повний текст джерелаEppanapelli, Lavan Kumar. "Investigation of wind potential variation at three measurement sites based on atmospheric stability and power production." Thesis, KTH, Kraft- och värmeteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-136935.
Повний текст джерелаGraham, Tara L. "Wind Energy-related Wildlife Impacts: Analysis and Potential Implications for Rare, Threatened and Endangered Species of Birds and Bats in Texas." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc30459/.
Повний текст джерелаOzoemena, Matthew. "Sustainability assessment of wind turbine design variations : an analysis of the current situation and potential technology improvement opportunities." Thesis, Northumbria University, 2016. http://nrl.northumbria.ac.uk/27221/.
Повний текст джерелаBalog, Irena. "Analysis of fluid-mechanical efficiency of offshore wind turbines from regional to local scale." Doctoral thesis, Università degli studi di Trieste, 2015. http://hdl.handle.net/10077/11101.
Повний текст джерелаRenewable energy resources, such as wind, are available worldwide. Locating areas with high and continual wind sources are crucial in pre-planning of wind farms. Vast offshore areas are characterized with higher and more reliable wind resources in comparison with continental areas. However, offshore wind energy production is in a quite preliminary phase. Elaborating the potential productivity of wind farms over such areas is challenging due to sparse in situ observations. Mediterranean basin is not an exception. The overall aim of this thesis is to perform analysis in model efficiency in estimation of wind energy from regional to local scale. First, we are proposing numerical simulations of near-surface wind fields from regional climate models (RCMs) in order to obtain and fill the gaps in observations over the Mediterranean basin. Four simulations produced with two regional climate models are examined. Remote sensing observations (QuikSCAT satellite) are used to assess the skill of the simulated fields. A technique in estimation the potential energy from the wind fields over the region is introduced locating the three potentially interesting sub-regions for wind farms. Then, we use local-scale model (large-eddy simulation) with implemented parameterization of wind turbine in order to simulate real case flow in theoretical wind farm. Information reported with regional climate model would be used to create inflow conditions for the selected sub-region of the Mediterranean Sea for simulating theoretical offshore wind farm. Finally, we would compare the estimation of wind power potential obtained by regional climate model and power production of theoretical wind farm obtained with large-eddy simulations for chosen sub-region. Within this multi-scale approach, we would present different numerical computational efficiency in application of wind energy and justification in usage of both regional and local scale models. The novelty of this multi-model methodological approach could be considered in offering significant information for wind industry.
XXVII Ciclo
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Carneiro, Tatiane Carolyne. "Characterization of Potential Wind Generation EolioelÃtrica For Purposes: A Case Study For Maracanaà (CE), ParnaÃba (PI) and Petrolina (PE)." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12256.
Повний текст джерелаIn recent years wind energy is becoming increasingly competitive on the world stage, making their participation in the electricity generation matrix presents a strong growth expectation. This dissertation initially presents an analysis of the behavior of wind at three locations in Northeast Brazil (Maracanau-CE, Petrolina-PE e Parnaiba-PI). In a second step, statistical analyzes are researched to the most appropriate behavior patterns of the observed wind resource in the three localities. In conclusion, the impact of the statistical analyzes used in the production of electricity from wind turbines is identified. In this study,historicaldata of speed and direction of wind collectedare used, during periods of: February 2012 to January 2013, to Maracanau; August 2012 to July 2013, for Parnaiba; and May 2012 to March 2013, for Petrolina. The Weibull distribution is applied to approximate the histograms of wind speed using different horizons of applications (annual, semiannual) and four different numerical methods (Empirical, Momentum, Energy Pattern Factor and Equivalent Energy) for estimation of the form and scale parameters. In addition to evaluating the application of Weibull, other frequency distributions (Normal, Gamma and Log-Normal)are analyzed, in order to obtain the best possible fit. In a last step, with the aid of RETScreen program,annual production of electricity, delivered to the grid from wind turbines,is calculated. The optimum wind speed occurred in Parnaiba (10 and 11 m / s), followed by Petrolina (8 and 9 m / s). Among all different numerical methods that was evaluated, the Equivalent Energy method presented the best performance, unlike the Energy Pattern Factor method, that presented the worst. The Weibull distribution showed good potential for setting wind data in Maracanau and Parnaiba, both located along the coastline. However, based on the wind data recorded, in Petrolina, which is located further inland, the performance was inferior. Among all the different frequency distributions that were verified, only normal distribution had an fit as good as Weibull distribution. Based on the annual electricity production estimation, Parnaiba is the city that has the best potential for energy production.
Nos Ãltimos anos a energia eÃlica tem se tornando cada vez mais competitiva no cenÃrio mundial, fazendo com que sua participaÃÃo na matriz elÃtrica apresente uma forte expectativa de crescimento. A presente dissertaÃÃo apresenta inicialmente uma anÃlise do comportamento do vento em trÃs localidades no Nordeste do Brasil (Maracanaà (CE), Petrolina (PE) e ParnaÃba (PI)); numa segunda etapa, sÃo pesquisadas anÃlises estatÃsticas mais adequadas aos padrÃes de comportamento do recurso eÃlico observado nas trÃs localidades e, concluindo, à identificado o impacto das anÃlises estatÃsticas utilizadas na produÃÃo de eletricidade de aerogeradores. Neste estudo sÃo utilizados dados histÃricos de velocidade e direÃÃo do vento coletados durante os perÃodos de: fevereiro de 2012 - janeiro de 2013 para MaracanaÃ, Agosto de 2012 - Julho de 2013 para ParnaÃba, maio de 2012 - marÃo 2013 para Petrolina. A distribuiÃÃo de frequÃncia de Weibull à aplicada para aproximar os histogramas de velocidade do vento, utilizando diferentes horizontes de aplicaÃÃes (anual, semestral) e quatro diferentes mÃtodos numÃricos (EmpÃrico, Momento, Fator PadrÃo de Energia e Energia Equivalente) para a estimaÃÃo dos parÃmetros de forma e escala. AlÃm de avaliar a aplicaÃÃo de Weibull, sÃo analisadas outras distribuiÃÃes de frequÃncia (Normal, Gama e Log-Normal) objetivando obter o melhor ajuste possÃvel. Numa Ãltima etapa, com o auxÃlio do programa RETScreen,à calculada a produÃÃo de eletricidade anual entregue à rede a partir de aerogeradores. Os melhores valores de velocidade do vento ocorreram em ParnaÃba (10 e 11 m/s), seguido de Petrolina (8 e 9 m/s). Dos diferentes mÃtodos numÃricos avaliados, o mÃtodo de energia equivalente apresentou o melhor desempenho e o mÃtodo fator de padrÃo de energia foi o mÃtodo com o pior desempenho. A distribuiÃÃo de Weibull demonstrou bom potencial para o ajuste de dados de vento em Maracanaà e ParnaÃba, ambas localizadas ao longo do litoral. No entanto, em Petrolina, que està situada mais para o interior, foi verificado um desempenho limitado a partir dos dados de vento registrados. Das diferentes distribuiÃÃes de frequÃncias testadas, apenas a distribuiÃÃo normal apresenta um ajuste aproximado ao que Weibull permite desenvolver. Com base nas estimaÃÃes da produÃÃo de eletricidade anual, ParnaÃba à a cidade que apresenta o melhor potencial para o aproveitamento eolioelÃtrico.
Driemeier, Luís Henrique. "Estudo sobre o impacto do avanço tecnológico no potencial eólico do Estado do Rio Grande do Sul." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/101213.
Повний текст джерелаThis paper intends to evaluate the impact of the technological advances on the wind power potential of the state of Rio Grande do Sul, based on the developments in wind turbines since 2002, year of publication of the current Wind Atlas. It is exposed an overview of the wind energy in Brazil and in the World , as well as the characteristics of the wind global circulation and the phenomena that give rise to the main wind displacements on the state area and the behavior of the wind within the atmospheric boundary layer. To support the development of this work, the main technological developments in the period and how they contributed to improve the competitiveness of this source are presented, as well as the trends for future wind turbines generations. In order to estimate a new wind potential for the state of Rio Grande do Sul, a program that compares the colors of each pixel on the maps published in the Wind Atlas with their captions, generating a matrix of data was developed. With the data obtained from the maps of the average wind speed, factor k and air density, it is possible to calculate the energy potential at each point of the matrix. This potential is obtained from the integration of power curves, corrected for each air density, using the Weibull probability distributions, calculated from the mean wind speed and form factor at each local of the state area. In order to validate the procedure, the results of the integration, applying the same power curve used in the Wind Atlas, are compared with the amount of energy published on the document. Making use of the modern wind turbines, based on the same calculation methodology, the wind energy potential of the Rio Grande do Sul, considering only sites with annual wind average speed higher than 7 m/s, increased its generation capacity at the height of 75 m by 65 %, reaching a total of 219.26 TWh/year. Under the same conditions, at the height of 100 m, the increase was 61 %, yielding an energy potential of 398.53 TWh/year. For both heights, there are not significant changes in the installable potential, estimated at 54.33 MW and 119.00 MW, respectively. From the database created it was possible to estimate, based on the logarithmic law, the distribution of the wind at heights of 125 m and 150 m, not previously presented in the Atlas of the state. At such heights, the estimated theorical potential is 761.94 TWh/year and 872.30 TWh/year, with an installed capacity of 211.31 MW and 270.25 MW, respectively.
Neto, Hely FalcÃo Maia. "AnÃlise Comparativa da EficiÃncia de Sete MÃtodos NumÃricos para DeterminaÃÃo dos ParÃmetros da Curva de Weibull Utilizando Dados de Velocidade do Vento e de PotÃncia EÃlica." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=8936.
Повний текст джерелаPara determinar o potencial eÃlico de uma regiÃo à de fundamental importÃncia que seja realizado um estudo sobre as caracterÃsticas intrÃnsecas do vento do local. Este trabalho aborda alguns mÃtodos numÃricos a serem empregados no cÃlculo dos parÃmetros da distribuiÃÃo de Weibull que auxilia no estudo da velocidade do vento, para que haja uma correta definiÃÃo das condiÃÃes naturais existentes. O prÃvio conhecimento destas informaÃÃes coopera no processo de tomada de decisÃo sobre a viabilidade tÃcnica na instalaÃÃo de novos parques eÃlicos industriais. à realizada uma anÃlise estatÃstica entre sete sistemas matemÃticos conhecidos da literatura para estimar os parÃmetros ( k ) de forma e ( c ) de escala da curva de distribuiÃÃo de frequÃncias de Weibull. SÃo utilizados dados de velocidade do vento e de potÃncia eÃlica de duas cidades litorÃneas do Estado do Cearà pertencentes à regiÃo Nordeste do Brasil, Icapuà e Camocim. Os mÃtodos apurados no desenvolvimento desta pesquisa sÃo: MÃtodo GrÃfico, MÃtodo da MÃxima VerossimilhanÃa, MÃtodo da MÃxima VerossimilhanÃa Modificado, MÃtodo EmpÃrico, MÃtodo do Momento, MÃtodo da Energia PadrÃo e MÃtodo da Energia Equivalente. A realizaÃÃo da anÃlise comparativa de eficiÃncia e exatidÃo entre estes, compreende a aplicaÃÃo dos seguintes testes estatÃsticos: AnÃlise de VariÃncia (R2 ) , Raiz Quadrada dos Erros QuadrÃticos MÃdios (RMSE) e Teste do Qui-quadrado (X 2 ) .
To determine the wind potential of a region is of paramount importance that a study be conducted on the intrinsic characteristics of the wind site. This paper address some numerical methods to be used in calculating the parameters of the Weibull distribution the aids in the study of wind speed, so there is a correct definition of natural conditions existing. The previous knowledge of this information assist in the decision-making process on the technical feasibility of installing industrial wind farms. It perform a statistical analysis of seven mathematical systems known in the literature for estimating the parameters ( k ) form and ( c ) scale of the frequency distribution curve of Weibull. Data are used for wind speed and wind power from two coastal cities of Cearà State belonging to Northeast Brazil, Icapuà and Camocim. The methods to be employed in the development of this research are: Graphical Method, Maximum Likelihood Method, Maximum Likelihood Modified Method, Empirical Method, Moment Method, Energy Pattern Factor Method and the Equivalent Energy Method. The realization of the comparative analysis of efficiency and accuracy among these include the application of the following statistical tests: ANOVA(R2 ) , Square Root of Average Quadratic Errors (RMSE) and Chi-square (X 2 ).
Wild, Sebastian [Verfasser], and Markus [Akademischer Betreuer] Nebel. "Dual-Pivot Quicksort and Beyond: Analysis of Multiway Partitioning and Its Practical Potential / Sebastian Wild ; Betreuer: Markus Nebel." Kaiserslautern : Technische Universität Kaiserslautern, 2016. http://d-nb.info/1116344645/34.
Повний текст джерелаJacobs, Teri A. "Putting the Wild Back into Wilderness: GIS Analysis of the Daniel Boone National Forest for Potential Red Wolf Reintroduction." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1248796842.
Повний текст джерелаMaseng, Monique Rochelle. "Risk analysis and potential implications of exotic Gyrodactylus species on cultured and wild cyprinids in the Western Cape, South Africa." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8321_1307685946.
Повний текст джерелаKoi and goldfish have been released into rivers in South Africa since the 1800&rsquo
s for food and sport fish and have since spread extensively. These fish are present in most of the river systems in South Africa and pose an additional threat the indigenous cyprinids in the Western Cape. Monogenean parasites of the genus Gyrodactylus are of particular concern, as their unique biology renders them a possible threat. Gyrodactylus kherulensis and G. kobayashii were identified from koi and goldfish respectively imported from Asia, Europe and locally bred fish. Morphometrics and the use of statistical classifiers, which includes univariate (ANOVA and Kruskal-Wallis), bivariate (Pearson&rsquo
s correlation) and multivariate (Principal Component Analysis) placed the two species within their respective groups. There was some intraspecific variation among the different populations collected from the various locations, especially in the hamulus and ventral bar features, but the marginal hooklets, however, remained static for both helminth species.
Yang, Jun [Verfasser], and Joachim M. [Akademischer Betreuer] Wink. "Potential and practical application of MALDI-TOF technology for the analysis of bacterial communities / Jun Yang ; Betreuer: Joachim M. Wink." Braunschweig : Technische Universität Braunschweig, 2013. http://d-nb.info/1175822256/34.
Повний текст джерелаAdekunle, Omotoyosi O. "A CONJOINT ANALYSIS STUDY OF PREFERENCES AND PURCHASING BEHAVIOR OF POTENTIAL ADOPTERS OF THE BUREAU OF LAND MANAGEMENT WILD HORSES." UKnowledge, 2015. http://uknowledge.uky.edu/agecon_etds/33.
Повний текст джерелаНовик, К. С. "Автономні автоматизовані станції моніторингу з комбінованим джерелом живлення". Thesis, Чернігів, 2021. http://ir.stu.cn.ua/123456789/24808.
Повний текст джерелаМета – підвищення ефективності системи живлення автономних автоматизованих станцій моніторингу за рахунок обґрунтування комбінованої структури з використанням фотоелектричних панелей та малопотужних вітрогенераторів. Автономні гідрометеорологічні станції моніторингу з кожним роком все ширше використовується як Україні та і в світі. Структура станцій моніторингу та типи вимірювальних перетворювачів залежить від її призначення та безпосередньо впливає на параметри джерела живлення. Запропоновано алгоритм моделювання фізичних процесів, який дозволяє обрати оптимальну потужність фотоелектричних панелей та вітрогенераторів. Запропонований алгоритм враховує погодження графіків генерації та споживання енергії в рамках автономної станції моніторингу та статистичний аналіз інформації сайту NASA.
Purpose – increasing the efficiency of the power supply system of autonomous automated monitoring stations by substantiating the combined structure with the use of photovoltaic panels and low-power wind turbines. Autonomous hydrometeorological monitoring stations are increasingly used both in Ukraine and in the world. The structure of monitoring stations and types of measuring transducers depend on its purpose and directly affect the parameters of the power supply. An algorithm for modeling physical processes is proposed, which allows to choose the optimal power of photovoltaic panels and wind turbines. The proposed algorithm takes into account the coordination of schedules of generation and consumption of energy within the autonomous monitoring station and statistical analysis of information from the NASA website.
Agbonkonkon, Nosa. "Counter-flow Ion Mobility Analysis: Design, Instrumentation, and Characterization." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2136.pdf.
Повний текст джерелаLagan, Oksana. "Potential of wind power in Ukraine." Thesis, Видавництво СумДУ, 2008. http://essuir.sumdu.edu.ua/handle/123456789/11713.
Повний текст джерелаШевцов, Сергій Валерійович, Сергей Валерьевич Шевцов, Serhii Valeriiovych Shevtsov, and A. Shavanov. "System of Ukraine wind energy potential management." Thesis, Видавництво СумДУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/26730.
Повний текст джерелаGreen, Michael Paul. "Using Mesoscale Meteorological Models to Assess Wind Energy Potential." Thesis, University of Canterbury. Environmental Science, 2005. http://hdl.handle.net/10092/1275.
Повний текст джерелаDuvvury, Rolan Shawn. "Potential negative effects of wind turbines on the ear." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/44927.
Повний текст джерелаOdeh, Yousre. "Wind Power Potential in Palestine/Israel : An investigation study for the potential of wind power in Palestine/Israel, with emphasis on the political obstacles." Thesis, Högskolan på Gotland, Institutionen för kultur, energi och miljö, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-217094.
Повний текст джерелаSTERMASI, ADRIST. "Offshore wind energy in the Adriatic Sea: Modelling of the microscale wind field and short-term forecast of wind power potential." Doctoral thesis, Università Politecnica delle Marche, 2015. http://hdl.handle.net/11566/242945.
Повний текст джерелаGough, Matthew Brian. "Assessing the potential for urban wind energy in Cape Town." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/27812.
Повний текст джерелаHaouas, Nabiha. "Wind energy analysis and change point analysis." Thesis, Clermont-Ferrand 2, 2015. http://www.theses.fr/2015CLF22554.
Повний текст джерелаThe wind energy, one of the most competitive renewable energies, is considered as a solution which remedies the inconveniences of the fossil energy. For a better management and an exploitation of this energy, forecasts of its production turn out to be necessary. The methods of forecasts used in the literature allow only a forecast of the annual mean of this production. Certain recent works propose the use of the Central Limit Theorem (CLT), under not classic hypotheses, for the estimation of the mean annual production of the wind energy as well as its variance for a single turbine. We propose in this thesis, an extension of these works in a wind farm by relaxation of the hypothesis of stationarity the wind speed and the power production, supposing that the latter are seasonal. Under this hypothesis the quality of the annual forecast improves considerably. We also suggest planning the wind power production during four seasons of the year. The use of the fractal model, allows us to find a "natural" division of the series of the wind speed to refine the estimation of the wind production by detecting abrupt change points. Statistical tools of the change points detection and the estimation of fractal models are presented in the last two chapters
Johansson, Bo-Göran. "Market potential in Sweden of small wind power stations : MBA-thesis in marketing." Thesis, University of Gävle, Department of Business Administration and Economics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-4690.
Повний текст джерелаAIM: As global warming is a fact and the consumption of energy is continuously increasing, alternative sourcing of energy is a must. The use of oil and coal for heating is limited due to it is nature resource which is also limited. Everyone will be forced to evaluate their own usage of energy and look into the alternatives of how to be a part of solving this global issue. For many, alternatives such as sun panels and wind power stations could be an alternative power source.
Today, there is only a limited availability in Sweden of small sized wind power stations and only small local producers or importers that sell the equipment – mostly through internet based market communications.
Method: The theoretical approach to this thesis is based on the MIO model in combination with several other models and tools such as, PESTEL, Marketing Mix, SWOT, Porter’s five forces, EVC and STP.
Result & Conclusions: There is a market for small wind power stations between 5 – 50 kW in Sweden.
The biggest reason why the market segment exist and will increase is due to continuously increasing energy prices and that wind power stations of this size are permitted to be connected directly to household consumption.
Suggestions for future research: How are other energy complements like solar panels influenced? What governmental decisions affect the business of small wind power stations?
Contributions to the thesis: Success in this segment requires a different approach to product offering than what the current competition is doing.
Walshaw, David. "Statistical analysis of wind speeds." Thesis, University of Sheffield, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358279.
Повний текст джерелаThomas, Joel. "COMPARATIVE ANALYSIS OF WIND ATLASES: WIND RESOURCE ASSESSMENT OF FORESTED SITES FOR WIND POWER DEVELOPMENT." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-448544.
Повний текст джерелаNanopoulos, Andrew. "Valuation of wind energy projects and statistical analysis of wind power." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74932.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (p. 221-225).
As energy becomes an increasingly important issue for generations to come, it is crucial to develop tools for valuing and understanding energy projects from an economic perspective since ultimately only economically viable solutions will be pushed forward. A model is developed for valuing a generic offshore floating wind farm from a corporate finance perspective. The model is used to value the project based on multiple valuation metrics and to generate sensitivity analyses on multiple important technical, cost and financial parameters. It is found that offshore wind projects can be economically viable under current conditions contingent on high annual mean wind speed and government support. In addition, it is also found that financial parameters prove to be equally or even more important than technical parameters in affecting the overall project value. Furthermore, the wind speed and power output are modeled using a mean reverting Ornstein - Uhlenbeck process whereby it is found that while wind speed is positively autocorrelated, the averaging period plays an important role in determining the nature and extent of the autocorrelation. Finally, the valuation is extended and generalized to a Black-Scholes option based valuation of any project whose underlying asset follows a mean reverting process, whereby a model is developed to find the debt and equity values under the assumption of time independence. The tools developed for this purpose can prove to be useful in other applications besides energy, such as shipping and commodities, as the underlying characteristics of energy projects are often similar across other markets.
by Andrew Nanopoulos.
S.M.
Hack, Brian E. "Analysis of MIT campus wind resources for future wind turbine installation." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45837.
Повний текст джерелаIncludes bibliographical references (p. 23).
As our nation's continuing dependence on fossil energy and the problems that result from that dependence grow more apparent, we must look to alternative sources of energy to power the country. As a global scientific and technological leader, MIT is expected to take a part in the search for and support of alternative energy sources. One such source that has tremendous potential, yet tends to be underrepresented, is wind energy. Following the previous wind resource analysis done by Richard Bates, Samantha Fox, Katherine McCusker, and Kathryn Pesce, I have expanded upon the suggestions made at the conclusion of their analysis. The Eastgate building on MIT's campus was identified as one possible location for small scale wind turbines. I completed a computational fluid dynamics (CFD) analysis on that building as well as the Johnson Athletic Center to determine if there were adequate wind resources to make the installation of a wind turbine on one of these buildings economical. The results of the CFD analysis show that the west edge of the roof on the Johnson Athletic Center is a promising location for the installation of a roof-top wind turbine. Further investigation of the wind resources at that location should be conducted.
by Brian E. Hack.
S.B.
Wiklund, Hannes. "The potential of wind power on the Swedish ancillary service markets." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-292644.
Повний текст джерелаEn större andel intermittent förnybar energi i det svenska elsystemet leder till större behov av systemflexibilitet. En nyckel till att hantera det är frekvensflexibilitet där en aktör kan öka eller sänka sin produktion eller konsumtion när det behövs. Denna typ av tjänst kallas för stödtjänst och sådana reserver upphandlas av Svenska kraftnät i specifika marknader. Dessa marknader prognosticeras att påtagligt öka i omsättning de närmsta åren och det finns ett behov av nya aktörer. Vindkraft har möjligheten att leverera stödtjänster men det är inte vanligt i dagsläget. Den här uppsatsen utreder potentialen för vindkraft att delta på de svenska stödtjänstmarknaderna. Det övergripande målet är att leverera en solid introduktion till hur marknaderna fungerar och hur vindkraft kan delta, en beskrivning av potentiella hinder och vad den potentiella ekonomiska effekten på en vindfarm kan vara. Först ges en detaljerad beskrivning av de tekniska kraven på marknaderna och hur prisutvecklingen sett ut. Sedan presenteras en intervjustudie där aktörer i vindkraftsindustrin intervjuats kring deras syn på ämnet. Sist har en ekonomisk modellering tagits fram där en generisk vindfarm som deltar på FCR-N, FCR-D, aFRR Ned och FFR simuleras. Resultat för 2018, 2019 och 2020 samt alla fyra prisområden tas fram. Modellen använder historisk vind- och prisdata för att ta fram produktionsprognoser och Monte-Carlo-simulerar sedan ett prognosfel. Intervjuerna visar att vindturbiner har förmågan att delta på marknaderna men att några frågetecken kring specifika tekniska krav existerar. Vindkraftsägare och operatörer utrycker en vilja att delta på marknaderna men att det finns en oro kring lönsamhet och framtida prisutveckling. Modelleringen visar på tydliga möjligheter att öka lönsamheten för en vindfarm under vissa förutsättningar. Den identifierar nedreglering under perioder med låga spotpriser som de huvudsakligt fördelaktiga förutsättningarna för en ökning av lönsamheten.
Tücer, Renas. "INVESTIGATION OF POTENTIAL REASONS TO ACCOUNT FOR THE UNDERPERFORMANCE OF AN OPERATIONAL WIND FARM." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-299538.
Повний текст джерелаDrew, Daniel. "Analysis tools for urban wind turbines." Thesis, University of Reading, 2011. http://centaur.reading.ac.uk/35837/.
Повний текст джерелаDaly, Noelle M. "Scintillation analysis of solar wind dynamics." Thesis, University of Glasgow, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301783.
Повний текст джерелаVelliyur, Ramachandran Krishna Guha. "An Aeroacoustic Analysis of Wind Turbines." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1293650904.
Повний текст джерелаNiebel, Stier Lucas, and Marco Wallimann. "It's an ill Wind : An Analysis of Justice Perceptions around Wind Power." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388520.
Повний текст джерелаCutler, Nicholas Jeffrey Electrical Engineering & Telecommunications Faculty of Engineering UNSW. "Characterising the uncertainty in potential large rapid changes in wind power generation." Publisher:University of New South Wales. Electrical Engineering & Telecommunications, 2009. http://handle.unsw.edu.au/1959.4/43570.
Повний текст джерелаEdlund, Marcus, and Daniel Eriksson. "Potential for – and benefits from – local content in Swedish wind power projects." Thesis, KTH, Hållbarhet och industriell dynamik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149328.
Повний текст джерелаTait, Louise. "The potential for local community benefits from wind farms in South Africa." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/11991.
Повний текст джерелаIncludes bibliographical references.
This thesis was motivated by the desire to explore more equitable patterns of development in South Africa and how business could contribute to wider developmental goals. It focused specifically on the emerging wind sector in South Africa, drawing on the concept of community wind farms that have emerged in many other parts of the world such as England, Denmark and Canada.
Juserius, Emma, and Filippa Ström. "The Potential of a Solar & Wind Hybrid System in Sri Lanka." Thesis, KTH, Energiteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298975.
Повний текст джерелаPrecis som många andra länder strävar Sri Lanka efter att enbart förlita sig på förnybar energi till år 2050 genom att ersätta den fossila produktionen med förnybara källor som sol- och vindkraft. En lösning på problemet är därför att installera hybridsystem bestående av sol- och vindkraft. Landets geografiska placering nära ekvatorn gör att solinstrålningen är hög, vilket medför att solceller skulle kunna vara en viktig komponent om Sri Lanka ska uppnå energimålen till 2050 på både ett ekonomiskt och miljövänligt sätt. Denna studie undersöker därför Sri Lankas potential att implementera ett hybridsystem bestående av sol- och vindkraft. Syftet med studien är att undersöka om det är ekonomiskt och miljömässigt lönsamt att konstruera ett sol- och vind- hybridsystem i ett hushåll i Sri Lanka. Målet är att hitta den optimala dimensioneringen för hybridsystemet som gynnas mest ekonomiskt och är miljömässigt hållbar. Genom att sammanställa en litteraturstudie om hybridsystem bestående av sol- och vindkraft kunde en optimering genomföras i syfte att erhålla det bäst dimensionerade hybridsystemet i optimeringsprogrammet HOMER. Data samlades in om kostnader för sol- och vindkraft samt om Sri Lankas dagliga konsumtion av energi i ett genomsnittligt hushåll som HOMER använde för att framställa den optimala dimensioneringen av ett sol- och vind- hybridsystem. De ekonomiska metoderna som användes för att beräkna den ekonomiska lönsamheten var nuvärdesmetoden, återbetalningsmetoden och internräntemetoden, vilka beräknades i HOMER för att komma fram till den optimala dimensioneringen. Resultatet visade att den optimala dimensioneringen utgörs av 5 kW solceller och 1 kW vindkraftverk som utgör en positiv lönsam investering med en återbetalning på 4 år och 10 månader samt ett nuvärde på 27 000 USD och en internränta på 20,6 %. Resultatet visade också en förnybar användning på 48,5 % för ett hushåll. Utöver de ekonomiska modellerna gjordes också en känslighetsanalys som indikerade på att förändring av de undersökta parametrarna inte hade tillräckligt stor inverkan på resultatet för att förändra den optimala dimensioneringen. Slutsatsen kan dras att den optimala dimensioneringen är ekonomiskt lönsam och kommer att gynna Sri Lanka mot målet att ha 100 % förnybar energi till 2050. Men även om resultatet visar på lönsam investering är investeringskostnaderna höga, vilket medför att endast ett fåtal skulle kunna ha råd att investera i hybridsystem bestående av sol- och vindkraft.
Mentis, Dimitrios. "Wind Energy Assessment in Africa; A GIS-based approach." Thesis, KTH, Energisystemanalys, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-125744.
Повний текст джерелаDenna studie analyserar potentialen för landbaserad vindkraft på den afrikanska kontinenten. Lämpliga socioekonomiska och geografiska begränsningar samt aktuella vindkraftverkens effektkurvor tillämpas för att nå det önskade resultatet. Den nuvarande tillgången till energi i Afrika beskrivs för att illustrera behovet av att främja vinkraftens penetration på kontinenten. De befintliga vindkraftverken såväl som de under konstruktion kartläggs. Därefter analyseras metoden för att närma sig resurs bedömningen. Bedömningen av energiproduktion och vindhastighet samt dess sannolikhet att inträffa under en viss tid är både viktigt och nödvändigt för denna studie. De olika kategorierna av potential för vindkraftverk definieras och utvärderas. Dessutom beskrivs kriterier av lokalisering för vindkraftverk och genomförs genom GIS-analys. Därefter förbereds interaktiva kartor. ArcGIS software används för att fånga, lagra och manipulera data som krävs samt för att få en helhetssyn av studien. Studien genomförs vid en kontinental nivå genom att använda en 1 km x 1 km (longitud, latitud) rutnät för markanvändning med den finaste upplösningen. Slutligen presenteras resultaten av detta arbete och jämförs med liknande metoder, viktiga slutsatser dras samt viktigt framtida arbete föreslås.
Hickey, Cain Charles. "Vines of different capacity and water status alter the sensory perception of Cabernet Sauvignon wines." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/42667.
Повний текст джерелаMaster of Science
Buxamusa, Adnan. "Wind Flow Analysis and Modeling Power Generation for a Multiple Wind Turbine Installation." Youngstown State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1299607231.
Повний текст джерелаWilliams, Jon A. "Enabling Validation of a CubeSat Compatible Wind Sensor." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78711.
Повний текст джерелаMaster of Science
Lynch, Charles Eric. "Advanced CFD methods for wind turbine analysis." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39491.
Повний текст джерелаOrimoto, Mika. "Regional analysis of extreme gust wind speed." Thesis, University of Hawaii at Manoa, 2003. http://hdl.handle.net/10125/7043.
Повний текст джерелаx, 92 leaves
Van, Lian Uk. "Risk analysis methods within offshore wind energy." Thesis, Norges Teknisk-Naturvitenskaplige Universitet, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-21113.
Повний текст джерелаHumphrey, Nora A. (Nora Anne) 1975. "Analysis of hurricane wind load safety factors." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/80155.
Повний текст джерела