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Relevant bibliographies by topics / Wind turbine efficiency

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Academic literature on the topic 'Wind turbine efficiency'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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Journal articles on the topic "Wind turbine efficiency"

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Doerffer, Piotr, Krzysztof Doerffer, Tomasz Ochrymiuk, and Janusz Telega. "Variable Size Twin-Rotor Wind Turbine." Energies 12, no. 13 (July 2, 2019): 2543. http://dx.doi.org/10.3390/en12132543.

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The paper presents a new concept of a vertical axis wind turbine. The idea is focused on small wind turbines, and therefore, the dominating quality is safety. Another important necessary feature is efficient operation at small winds. This implies an application of the drag driven solution such as the Savonius rotor. The presented concept is aimed at reducing the rotor size and the cost of implementation. A new wind turbine solution, its efficiency, and functionality are described. The results of numerical simulations being a proof of the concept are reported. The simulations were followed by wind tunnel tests. Finally several prototypes were built and investigated for a longer period of time. The new wind turbine concept has undergone various testing and implementation efforts, making this idea matured, well proven and documented. A new feature, namely, the wind turbine size reduction at strong winds, or in other words, an increase in the wind turbine size at low winds is the reason why it is difficult to compare this turbine with other turbines on the market. The power output depends not only on the turbine efficiency but also on its varying size.

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Yershina, A. K. "A METHOD FOR INCREASING THE EFFICIENCY OF A WIND TURBINE." Eurasian Physical Technical Journal 17, no. 2 (December 24, 2020): 73–77. http://dx.doi.org/10.31489/2020no2/73-77.

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The article discusses the possibilities of improving the energy efficiency of wind turbines. A brief analysis of the current state of development of alternative energy, in particular wind energy in Kazakhstan, is considered. It is shown that an increase in the power of a wind - power plant is possible due to the use of a system of simultaneously rotating rotors. A brief description of the Bidarier-2 wind turbine construction, which can significantly increase the power removed from the wind flow, is given. The possibility of further increasing the efficiency of the Bidarrieus-2 wind turbine by means of a concentrator is discussed. The unique method for the speed controlling of the wind flow with the help of sliding flaps of the guide concentrator in order to improve the performance of the wind turbine at high wind speed is proposed first time.

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Jamal, Jamal, A. M. Shiddiq Yunus, and Lewi Lewi. "Pengaruh Kelengkungan Sudu Terhadap Kinerja Turbin Angin Savonius." INTEK: Jurnal Penelitian 6, no. 2 (November 12, 2019): 139. http://dx.doi.org/10.31963/intek.v6i2.1578.

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Savonius wind turbine is one of the wind turbines that is more widely used for low energy needs, with more energy needs, this turbine type is very feasible to be developed. This research aims to improve the performance of Savonius wind turbines with variations in turbine blade curvature and variations in wind speed. The research method is a laboratory experiment on the fan test, the blade curvature test variation is 1R; 1.5R and 2R, another variation is the wind speed which are 4.0; 5.5; 7.0 and 8.5 m/s. The experiement results shows that the greater the wind speed, the input power, air mass flow velocity, power output, and efficiency will be even greater; the greater the load force on the turbine shaft, the torque on the turbine shaft will also be greater; the relationship of force loads to power output and turbine efficiency is to construct a parabolic curve; for the same wind speed, the 2R turbine has the lowest rotation, power output and efficiency compared to the 1R and 1.5R turbines; at the same wind speed the 1R turbine produces a higher rotation but requires lower torque than the 1.5R turbine; at low wind speeds (4 m / s) the 1.5R turbine has better efficiency than the 1R turbine, whereas at the high wind speed (8.5 m/s) the 1R turbine has a better efficiency than the 1.5R turbine; The maximum efficiency is obtained at 89.56% in the 1R curvature turbine with a wind speed of 8.5 m / s.

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Khudri Johari, Muhd, Muhammad Azim A Jalil, and Mohammad Faizal Mohd Shariff. "Comparison of horizontal axis wind turbine (HAWT) and vertical axis wind turbine (VAWT)." International Journal of Engineering & Technology 7, no. 4.13 (October 9, 2018): 74. http://dx.doi.org/10.14419/ijet.v7i4.13.21333.

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As the demand for green technology is rising rapidly worldwide, it is important that Malaysian researchers take advantage of Malaysia’s windy climates and areas to initiate more power generation projects using wind. The main objectives of this study are to build a functional wind turbine and to compare the performance of two types of design for wind turbine under different speeds and behaviours of the wind. A three-blade horizontal axis wind turbine (HAWT) and a Darrieus-type vertical axis wind turbine (VAWT) have been designed with CATIA software and constructed using a 3D-printing method. Both wind turbines have undergone series of tests before the voltage and current output from the wind turbines are collected. The result of the test is used to compare the performance of both wind turbines that will imply which design has the best efficiency and performance for Malaysia’s tropical climate. While HAWT can generate higher voltage (up to 8.99 V at one point), it decreases back to 0 V when the wind angle changes. VAWT, however, can generate lower voltage (1.4 V) but changes in the wind angle does not affect its voltage output at all. The analysis has proven that VAWT is significantly more efficient to be built and utilized for Malaysia’s tropical and windy climates. This is also an initiative project to gauge the possibility of building wind turbines, which could be built on the extensive and windy areas surrounding Malaysian airports.

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Jamal, Jamal. "Pengaruh Jumlah Sudu Terhadap Kinerja Turbin Savonius." INTEK: Jurnal Penelitian 6, no. 1 (May 25, 2019): 64. http://dx.doi.org/10.31963/intek.v6i1.1127.

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Savonius wind turbines are wind turbines that canoperate at low wind speeds, this type of turbine is very suitable tobe used in several places in Indonesia. The research aims toimprove the performance of the Savonius wind turbine withvariations in the number of turbine blades as well as variations inthe velocity of wind speed. The research method wasexperimental where wind turbine testing was carried out withvariations in the number of turbine blades with number of 2, 3and 4 blades, other variations carried out were wind speed at 3.5;4,5; 5.5 and 6.5 m/s. The study results show that the 2-bladeturbine produces greater rotation, but the torque moment islower than the 3 and 4 blade turbines, this can be seen in the lowefficiency of the 2 blade turbine at low wind speeds with highloading. At 3.5 m / s wind turbines 2 blade turbines haveefficiency that tends to be the same as 3 and 4 blade turbines upto 0.5 N but at loads of 0.6 - 1.2 N 2 blade turbines have lowerefficiency, while at wind speeds of 4.5 - 6.5 m / s 2 blade turbineshave greater efficiency than turbines 3 and 4 blades up to a loadof 1.2 N but if the load is added then the efficiency of 2-bladeturbines can be smaller than efficiency 3 and 4-blade.

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Kurniawati, Diniar Mungil. "Investigasi Performa Turbin Angin Crossflow Dengan Simulasi Numerik 2D." JTT (Jurnal Teknologi Terpadu) 8, no. 1 (April 27, 2020): 7–12. http://dx.doi.org/10.32487/jtt.v8i1.762.

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Wind turbine is a solution to harness of renewable energy because it requires wind as the main energy. Wind turbine work by extracting wind energy into electrical energy. Crossflow wind turbine is one of the wind turbines that are developed because it does not need wind direction to produce maximum efficiency. Crossflow wind turbines work with the concept of multiple interactions, namely in the first interaction the wind hits the first level of turbine blades, then the interaction of the two winds, the remainder of the first interaction enters the second level blades before leaving the wind turbine. In the design of crossflow wind turbine the diameter ratio and slope angle are important factors that influence to determine of performance in crossflow wind turbine. In this study varied the angle of slope 90 ° and variations in diameter ratio of 0.6 and 0.7. The study aimed to analyze the effect of diameter ratio and slope angle in performance of the crossflow wind turbine. This research was conducted with numerical simulation through 2D CFD modeling. The results showed that the best performance of crossflow wind turbine occurred at diameter ratio variation 0.7 in TSR 0.3 with the best CP value 0.34.

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Valiev, M., R. Stepanov, V. Pakhov, M. Salakhov, V. Zherekhov, and G. N. Barakos. "Analytical and experimental study of the integral aerodynamic characteristics of low-speed wind turbines." Aeronautical Journal 118, no. 1209 (November 2014): 1229–44. http://dx.doi.org/10.1017/s0001924000009957.

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Abstract This paper proposes a new wind turbine concept suitable for low-speed winds. The design is studied using a combination of wind-tunnel experimentation and aerodynamic theory. After processing the experimental results, and after comparison with theory, the optimal conditions for the operation of the turbine are identified. Experimental and theoretical results suggest that the design offers a realistic alternative to conventional horizontal axis wind turbines. In addition, the proposed turbine has good power efficiency at low wind speeds, and is suitable for deployment in areas not yet favoured by wind farm developers.

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He, Yi Ming, and Xian Yi Qian. "Design of Wind Power Turbine's Main Components and Computation of its Output Power." Applied Mechanics and Materials 195-196 (August 2012): 23–28. http://dx.doi.org/10.4028/www.scientific.net/amm.195-196.23.

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We have mainly studied the main structure of wind power turbines components in accordance with the principle aerodynamics. We also have taken horizontal axis wind power turbine for example and studied the basic structure and producing technology about wheel, base and other equipments. We have computed the wind power turbines output power and efficiency, and compared with some kinds of different wind power turbines output power and efficiency. All what have studied is important to design wind power turbine.

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de, Risi, Marco Milanese, Gianpiero Colangelo, and Domenico Laforgia. "High efficiency nanofluid cooling system for wind turbines." Thermal Science 18, no. 2 (2014): 543–54. http://dx.doi.org/10.2298/tsci130316116d.

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The efficiency of cooling system is critical for wind turbines, particularly during the hot season, when high temperatures could damage the electric generator and mechanical parts of the turbine. The cooling system proposed in this paper is able to increase the efficiency of heat transfer with the use of nanofluids and the wind turbine tower as a heat exchanger to dissipate waste heat in the environment. In this study the use of Al2O3-water nanofluids has been considered. The results of this investigation appear encouraging because they have shown that the proposed new solution is able to assure highly efficient heat transfer and to limit thermal stresses on the electrical and mechanical components of wind turbines.

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Kosasih, Bu Yung, and S. A. Jafari. "High-Efficiency Shrouded Micro Wind Turbine for Urban-Built Environment." Applied Mechanics and Materials 493 (January 2014): 294–99. http://dx.doi.org/10.4028/www.scientific.net/amm.493.294.

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Shrouding (diffuser augmented) horizontal axis micro-wind turbine has been shown to be an effective ways to potentially increase the power output of micro wind turbine for applications in built environments. It is well understood that the degree of the performance enhancement depends on several factors including the diffuser shape and geometries, blade airfoils, and the wind condition at the turbine site. The effect of diffuser shape and geometries is reported in this paper. Computational fluid dynamic (CFD) simulations of a small wind turbine with a simple frustum diffuser shrouding have been carried out. The diffuser has been modeled with different shapes with the aim to understand the effect of length and area ratio on power augmentation phenomenon. The simulations provide some parameterized figures which present method to determine the beneficial range of frustum diffuser geometries for diffuser shrouded horizontal axis wind turbines.

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Dissertations / Theses on the topic "Wind turbine efficiency"

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Li, Jiale. "IMPROVE ENERGY PRODUCTION BY USING HIGH EFFICIENCY SMART WIND TURBINE BLADE." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1522420577009512.

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Shaheen, Mohammed Mahmoud Zaki Mohammed. "Design and Assessment of Vertical Axis Wind Turbine Farms." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439306478.

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Yilmaz, Eftun. "Benchmarking of Optimization Modules for Two Wind Farm Design Software Tools." Thesis, Högskolan på Gotland, Institutionen för kultur, energi och miljö, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hgo:diva-1946.

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Optimization of wind farm layout is an expensive and complex task involving several engineering challenges. The layout of any wind farm directly impacts profitability and return of investment. Several software optimization modules in line with wind farm design tools in industry is currently attempting to place the turbines in locations with good wind resources while adhering to the constraints of a defined objective function. Assessment of these software tools needs to be performed clearly for assessing different tools in wind farm layout design process. However, there is still not a clear demonstration of benchmarking and comparison of these software tools even for simple test cases. This work compares two different optimization software namely openWind and WindPRO commercial software tools mutually.

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Kachhia, Bhaveshkumar Mahendrabhai. "Design and tribological issues in wind turbine bearings." Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0076.

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Grandes bague de roulement utilisés dans éolienne sont l'un des éléments de transmission de charge importantes de ces machines tournantes. Ces roulements fonctionnent grâce à des cycles de charge et de la fréquence et de l'expérience des défis complexes tribologiques sévères. Le coût de remplacement de ces paliers est très élevé et conduit aussi à quantité importante de temps d'arrêt. Il est donc important de comprendre certains des principaux problèmes de conception et tribologiques de ces roulements. Quatre points type de roulement de l'anneau de contact de rotation a été considéré comme une base de référence pour cette étude pour démontrer les questions de contact de troncature et d'échec de la cage pour les roulements de hauteur. Un palier de contact à deux points de remplacement est proposé d'éliminer le contact troncature et de réduire la force de la cage accumulation. Les méthodes de conception et d'analyse démontré dans cette étude peuvent être facilement étendus à lacet paliers ainsi que d'autres grands roulements utilisés dans l'industrie
Large slewing ring bearings used in wind turbine are one of the important load transmitting elements of these rotating machines. These bearings operate through complex load and frequency cycles and experience severe tribological challenges. The cost of replacement of these bearings is very high and also leads to significant amount of down-time. It is therefore important to understand some of the major design and tribological issues in these bearings. Four-point contact slewing ring bearing type has been considered as a baseline for this study to demonstrate contact truncation and cage failure issues for pitch bearings. An alternate two-point contact bearing is proposed to eliminate contact truncation and reduce the cage force build-up. The design and analysis methods demonstrated in this study can be easily extended to yaw bearings as well as other large bearings used in the industry

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Wo, Chung. "PERFORMANCE ASSESSMENT OF THE CASE WESTERN RESERVE UNIVERSITYWIND TURBINE AND CHARACTERIZATION OF WIND AVAILABILITY." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1383338732.

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Moragues, Pons Jeremias. "Practical Experiments on the Efficiency of the Remote Presence : Remote Inspection in an Offshore Wind Turbine." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for teknisk kybernetikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-16780.

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Offshore wind power has become a growing interest in the worldwide society. New research and investigation in this kind of technology is increasing year after year. Thus, the inspection on the offshore wind turbines is expensive but necessary.The goal of this project is to demonstrate the efficiency of a Remote Inspection System inside the nacelle of an Offshore Wind Turbine. The way of carrying out inspections on real nacelles, as well as other aspects from maintenance is discussed. Three different companies have been taken into account when developing an Inspection Plan.This master thesis contains a theoretical design of the input device that would be used in the future for inspection and maintenance tasks. A gamepad has been implemented as a temporary solution for the input device.It has been demonstrated how the prototype is able to detect failures in a scenario simulating a real nacelle. Although it has not been possible to test sound, heat or vibration, this kind of things would be easily detected by adding some more additional sensors.The conclusion is that a solution for reducing maintenance tasks relies on the development of effective condition monitoring and remote control systems.

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Hamilton, Christopher. "Digital control algorithms : low power wind turbine energy maximizer for charging lead acid batteries." Honors in the Major Thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1280.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.
Bachelors
Engineering and Computer Science
Electrical Engineering and Computer Science

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Agbali, Francis Akumabi. "DESIGN AND TESTING OF A WIND ENERGY HARNESSING SYSTEM FOR FORCED CONVECTIVE DRYING OF GRAIN IN LOW WIND SPEED, WARM AND HUMID CLIMATES." UKnowledge, 2019. https://uknowledge.uky.edu/bae_etds/66.

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Forced convective drying using a wind turbine mechanically connected to a ventilation fan was hypothesized for low cost and rapid grain drying in developing countries. The idea was tested using an expandable wind turbine blade system with variable pitch, at low wind speeds in a wind tunnel. The design was based on empirical and theoretical models embedded in a graphical user interface (GUI) created to estimate airflow-power requirements for drying ear corn. Output airflow (0.0016 - 0.0052 m3kg-1s-1) increased within the study wind speed range (2.0 - 5.5 m/s). System efficiency peak (8.6%) was observed at 3.5 m/s wind speed. Flow resistance was overcome up to 1m fill depth in 0.5 m x 0.5 m wide drying bin. Drying study at different airflow rates (no forced convection, 0.002 m3kg-1s-1 and 0.008 m3kg-1s-1) were conducted in a controlled environment at 35oC and 45% relative humidity with mean drying time; 40.3, 37.9 and 22.9 h respectively, that reduced with increasing airflow while drying the ear corn from 22% to 15% moisture content. The overall result supports the hypothesis that the wind convection system increased grain drying rates and should be further developed.

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Carneiro, Francisco Olimpio Moura. "Levantamento de Curvas de EficiÃncia de Aerogeradores de 3m de DiÃmetro Utilizando Modelos de TurbulÃncia Rans de Uma e Duas EquaÃÃes com ComparaÃÃo Experimental." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=5847.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior
Realizou-se o levantamento de curvas de eficiÃncia utilizando odelos numÃricos RANS de uma e duas equaÃÃes para um erogerador com 3m de diÃmetro, utilizando pÃs projetadas para operar em diferentes condiÃÃes de λ com perfis NACA 0012, 4412 e 6412. A parametrizaÃÃo da geometria da malha para a dimensÃo do rotor, juntamente com a parametrizaÃÃo do refinamento frente Ã capacidade dos modelos RANS obteve a independÃncia da malha Ã soluÃÃo. Posteriormente a anÃlise numÃrica realizou a comparaÃÃo do melhor resultado â pÃ projetada λ=6 com o perfil NACA 6412 â com dados experimentais. O aparato experimental foi capaz de coletar dados de rotaÃÃo e torque do rotor simultaneamente com a mediÃÃo da velocidade do vento, no qual foi obtido um valor mÃximo de eficiÃncia de aproximadamente 25% e uma faixa de operaÃÃo limitada a λ=6. Conclui-se que os modelos fornecem boa precisÃo em predizer a faixa operacional de λ, no entanto os valores de Cp foram subestimados. O modelo k-ω SST apresentou o melhor resultados dentre todos.
A survey was conducted, consisting of efficiency curves applying RANS turbulence numerical models of one and two equations for a wind turbine with a diameter of 3m, using blades designed to operate under different λ with NACA 0012, 4412 and 6412 profiles. The parameterization of the mesh geometry to the size of the rotor, together with the parameterization of the refinement level compared to the ability of RANS models reached independence from the grid to the solution. Later, a numerical analysis was performed to compare the best result â a blade designed to operate under λ = 6 with the NACA 6412 profile - against experimental data. The experimental apparatus was able to collect data rotation and torque of the rotor simultaneously with the measurement of wind velocity, which obtained a maximum efficiency of approximately 25% and an operating range limited to λ = 6. It can be concluded that the models provide good accuracy in predicting the operating range of λ, however the values of Cp were underestimated. The k-ω SST model showed the best results among all.

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Jinbo, Maro. "Contribuições ao projeto de sistemas eólicos de efeito magnus com rastreamento da máxima potência." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/12032.

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This work deals with an unconventional wind energy conversion system, in which the wind turbine has rotating cylinders rather than traditional blades. These cylinders can be driven by a brushless DC motor. The turbine operates on the physical principle called Magnus Effect. It presents the mathematical modeling of Magnus turbine and based on this modeling were carried out simulations in PSIM® software. It was implemented and was tested MPPT algorithms type HCC (Hill Climbing Control) for DC brushless motor control for operating the cylinders and hence the power generated by the Magnus turbine. Prototypes of Magnus effect wind system (turbine, generator PMSG, AC / DC converter, DC / DC converter) were built to perform wind tunnel experiments comparing the experimental results with simulated results. We sought to optimize the extraction of wind energy through concepts and innovative solutions in the construction of the turbine, brushless DC servo for rotating cylinders, implementing MPPT algorithms to control the rotation of the cylinder and the static converter. Three turbine concepts are presented and three prototypes were built. Loose cylinders were tested in the wind tunnel and it was measured the lift and drag forces. The "Prototype 3" is 3 m in diameter with two cylinders of 150 mm diameter showed the best experimental results, but still generated mechanical power did not provide an effective net power.
O presente trabalho trata de um sistema eólico não convencional, cuja turbina eólica possui cilindros girantes no lugar das pás tradicionais. Estes cilindros podem ser acionados por um motor brushless CC (sem escovas). O princípio físico de funcionamento desta turbina baseia-se no que se denomina de “Efeito Magnus”. Apresenta-se a modelagem matemática da turbina Magnus e com base nesta modelagem realizam-se simulações no software PSIM®. Programa-se e testa-se algoritmos de rastreamento da máxima potência líquida MPPT (Maximum Power Point Tracking), do tipo HCC (Hill Climbing Control) no controle do motor brushless CC de acionamento dos cilindros e, consequentemente, da potência gerada pela turbina Magnus. Protótipos de sistema eólico de efeito Magnus (turbina, gerador PMSG, conversores CA/CC, CC/CC) foram construídos para realizar experimentos em túnel de vento, possibilitando comparações dos resultados experimentais com os resultados simulados. Busca-se otimizar a extração da energia dos ventos, através de concepções e soluções inovadoras na construção da turbina, servo acionamento CC brushless para os cilindros girantes, implementação de algoritmos MPPT no controle da rotação dos cilindros e do conversor estático. Três concepções da turbina Magnus são apresentadas e três protótipos construídos. Ensaios de cilindros girantes avulsos com variações nos diâmetros e nas espirais sobrepostas são realizados em túnel de vento com colméias e medem-se as forças de sustentação e de arrasto. O “Protótipo 3” de 3 m de diâmetro com dois cilindros lisos de 150 mm de diâmetro apresentou os melhores resultados experimentais, mas ainda a potência mecânica gerada não proporcionou uma potência líquida efetiva.

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Books on the topic "Wind turbine efficiency"

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Fant, Charles. Wind turbine and photovoltaic generating efficiency in Africa. UNU-WIDER, 2016. http://dx.doi.org/10.35188/unu-wider/2016/169-7.

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Wind Turbines: Types, Design and Efficiency. Nova Science Publishers, Incorporated, 2013.

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Andersen, Lars. Efficient Modelling of Wind Turbine Foundations. INTECH Open Access Publisher, 2011.

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Rez, Peter. Electrical Power Generation: Renewables—Solar and Wind. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198802297.003.0007.

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Solar and wind power have low power densities. Large areas will be required to generate the electrical energy that we are using right now. These energy sources are intermittent, although sunshine is reasonably predictable in desert climates. Even in these ideal locations, fixed rooftop PV can only be used to meet a relatively small proportion of total electrical demand. Solar thermal with molten salt storage has a higher efficiency, and can better match electrical demands in these places. For wind turbines to generate their advertised or rated power, winds have to be blowing at about 12 m/sec (20 kt or 24 mph). In the United States, except in mountain passes and the Texas panhandle, this does not appear to happen very often. A simple test of whether a given renewable energy source is practical is to check whether it can meet the electrical demands of a single house.

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Book chapters on the topic "Wind turbine efficiency"

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Benmedjahed, M., N. Ghellai, Z. Bouzid, and A. Chiali. "Temporal Assessment of Wind Energy Resource in “Adrar” (South of Algeria); Calculation and Modeling of Wind Turbine Noise." In 2nd International Congress on Energy Efficiency and Energy Related Materials (ENEFM2014), 33–42. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-16901-9_5.

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Aramendia, Iñigo, Unai Fernandez-Gamiz, Jose Antonio Ramos-Hernanz, Javier Sancho, Jose Manuel Lopez-Guede, and Ekaitz Zulueta. "Flow Control Devices for Wind Turbines." In Energy Harvesting and Energy Efficiency, 629–55. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49875-1_21.

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Voormeeren, S. N., and D. J. Rixen. "Efficient Updating of Static Modes in the Craig-Bampton Reduction Basis." In Topics in Experimental Dynamics Substructuring and Wind Turbine Dynamics, Volume 2, 299–317. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-2422-2_27.

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Fernández-Fidalgo, Javier, Xesús Nogueira, Luis Ramírez, and Ignasi Colominas. "An a Posteriori Very Efficient Hybrid Method for Compressible Flows." In Recent Advances in CFD for Wind and Tidal Offshore Turbines, 137–48. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-11887-7_13.

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Podgurenko, Volodymyr, Yulii Kutsan, Oleg Getmanets, and Volodymyr Terekhov. "Simulation of Efficiency Enhancement of Electric Power Generation by Wind Turbines in Wind Cadaster Various Zones." In Studies in Systems, Decision and Control, 63–80. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69189-9_4.

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Singla, Manish Kumar, Jyoti Gupta, Parag Nijhawan, Souvik Ganguli, and S. Suman Rajest. "Development of an Efficient, Cheap, and Flexible IoT-Based Wind Turbine Emulator." In Business Intelligence for Enterprise Internet of Things, 225–31. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44407-5_14.

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Westbomke, Martin, Jan-Hendrik Piel, Michael H. Breitner, Peter Nyhius, and Malte Stonis. "An Optimization Model to Develop Efficient Dismantling Networks for Wind Turbines." In Operations Research Proceedings, 239–44. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89920-6_33.

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Oelker, Stephan, Marco Lewandowski, Abderrahim Ait Alla, and Klaus-Dieter Thoben. "Preactive Maintenance—A Modernized Approach for Efficient Operation of Offshore Wind Turbines." In Dynamics in Logistics, 323–31. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23512-7_31.

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Goiti, Imanol López. "Fuzzy Logic in Wind Energy." In Renewable and Alternative Energy, 519–44. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1671-2.ch015.

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The use of wind energy for power generation purposes plays a major role in the current electrical market and is becoming increasingly attractive. The good exploitation of this kind of energy may improve the power generation capabilities and therefore reduce generation costs. Fuzzy Logic methodology can be used to improve the current technology. In this chapter, Fuzzy Logic is proposed as a technique that assesses wind sites and predicts annual generation for wind turbines. Moreover, it is also proposed to maximize the power search and control the power electronic converter of the wind turbine. Fuzzy Logic should be considered as a real alternative to the typical methods for the exploitation of wind energy. It can improve wind power generation with high performance and efficiency.

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Goiti, Imanol López. "Fuzzy Logic in Wind Energy." In Advances in Environmental Engineering and Green Technologies, 165–90. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-6631-3.ch007.

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The use of wind energy for power generation purposes plays a major role in the current electrical market and is becoming increasingly attractive. The good exploitation of this kind of energy may improve the power generation capabilities and therefore reduce generation costs. Fuzzy Logic methodology can be used to improve the current technology. In this chapter, Fuzzy Logic is proposed as a technique that assesses wind sites and predicts annual generation for wind turbines. Moreover, it is also proposed to maximize the power search and control the power electronic converter of the wind turbine. Fuzzy Logic should be considered as a real alternative to the typical methods for the exploitation of wind energy. It can improve wind power generation with high performance and efficiency.

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Conference papers on the topic "Wind turbine efficiency"

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Buckney, Neil, Steven Green, Alberto Pirrera, and Paul Weaver. "Wind Turbine Blade Structural Efficiency." In 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
20th AIAA/ASME/AHS Adaptive Structures Conference
14th AIAA. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2012. http://dx.doi.org/10.2514/6.2012-1502.

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Chioncel, Cristian Paul, Ovidiu Gelu Tirian, Marian Dordescu, and Elisabeta Spunei. "Optimization of wind turbine operation in variable wind speed conditions." In 2020 7th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE). IEEE, 2020. http://dx.doi.org/10.1109/eeae49144.2020.9279103.

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Buckney, Neil, Alberto Pirrera, Paul Weaver, and D. Todd Griffith. "Structural Efficiency Analysis of the Sandia 100 m Wind Turbine Blade." In 32nd ASME Wind Energy Symposium. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2014. http://dx.doi.org/10.2514/6.2014-0360.

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Ivanovic, Zeljko, Branko Dokic, Branko Blanusa, and Mladen Knezic. "Boost converter efficiency optimization in wind turbine." In 2010 14th International Power Electronics and Motion Control Conference (EPE/PEMC 2010). IEEE, 2010. http://dx.doi.org/10.1109/epepemc.2010.5606839.

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Zeynali Khameneh, Nooshin, and Mehran Tadjfar. "Improvement of Wind Turbine Efficiency by Using Synthetic Jets." In ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fedsm2016-7959.

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In this paper we investigated the applicability of using synthetic jets to improve the efficiency of wind turbines. We used the NREL Phase VI rotor which is a stall regulated two bladed wind turbine with linear taper and nonlinear twist distribution over the blades and uses the S809 airfoil from root to tip. We validated our base flow (uncontrolled) results with the experimental tests that were performed in the NASA/AMES 80 ft. × 120 ft. wind tunnel. Synthetic jet is an active flow control device and was applied along the blade from root to tip at 0.1 chord location. The non-dimensionalized jet frequencies of Fjet+ = 1 and 0.5 and the blowing ratio of Vj/U∞ = 1 and 2 are used during the control cycle.

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Johansen, Jeppe, Mac Gaunaa, and Niels Sørensen. "Increased Aerodynamic Efficiency of Wind Turbine Rotors Using Winglets." In 26th AIAA Applied Aerodynamics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2008. http://dx.doi.org/10.2514/6.2008-6728.

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Mălăel, I., I. O. Bucur, and D. Preda. "Drag based vertical axis wind turbine numerical efficiency evaluation." In APPLICATION OF MATHEMATICS IN TECHNICAL AND NATURAL SCIENCES: 11th International Conference for Promoting the Application of Mathematics in Technical and Natural Sciences - AMiTaNS’19. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5130852.

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Liu, Jian, Hui Wang, and Xiu Ji. "Energy efficiency evaluation of wind turbine based on AHP." In 2017 Chinese Automation Congress (CAC). IEEE, 2017. http://dx.doi.org/10.1109/cac.2017.8243578.

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Hallock, Kyle, Tyler Rasch, Guoqiang Ju, and Fernando Alonso-Marroquin. "Efficiency of the DOMUS 750 vertical-axis wind turbine." In OFF-GRID TECHNOLOGY WORKSHOP. Author(s), 2017. http://dx.doi.org/10.1063/1.4985556.

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Circiumaru, Gabriela, Rares-Andrei Chihaia, Dragos Ovezea, Ionel Chirits, Sergiu Nicolaie, Lucia-Andreea El-Leathey, and Adrian Nedelcu. "Experimental Study on the Performance of Small-Scale Wind Turbine Rotors." In 2020 7th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE). IEEE, 2020. http://dx.doi.org/10.1109/eeae49144.2020.9279066.

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Reports on the topic "Wind turbine efficiency"

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Datskos, Panos G., Georgios Polyzos, Art Clemons, Paul Bolton, and Aaron Hollander. Materials and Additive Manufacturing for Energy Efficiency in Wind Turbine and Aircraft Industries. Office of Scientific and Technical Information (OSTI), May 2016. http://dx.doi.org/10.2172/1254096.

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Darren Hammell and Mark Holveck. Reliable, Efficient and Cost-Effective Electric Power Converter for Small Wind Turbines Based on AC-link Technology. Office of Scientific and Technical Information (OSTI), August 2006. http://dx.doi.org/10.2172/889356.

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