Academic literature on the topic 'Turbine Darrieus'

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Journal articles on the topic "Turbine Darrieus"

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Kadir, Muhammad Abdul. "PENGARUH SUDUT KEMIRINGAN DAN LEBAR SUDU TERHADAP KINERJA TURBIN DARRIEUS DENGAN PROFIL SUDU NACA 0021." KURVATEK 4, no. 1 (2019): 7–13. http://dx.doi.org/10.33579/krvtk.v4i1.1135.

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Abstract There are many low head hydro power energy resources potential in Indonesia that have not been optimally in use. The main obstacles is that this kind of turbines have low pawer factor and low efficiencies. One of the low head hydro power turbines is Darrieus turbin. The excellence of Darrieus turbine is its simply and has high strength blades. The verry important parameters that inflence to the turbine performance are width, angle of attack and cross section profile of the blades. The objective of the research is to investigate the influences of blades width and blades angle of attack
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Wardani, Citra Sari, Dwi Anung Nindito, and Allan Restu Jaya. "Inovasi Dan Desain Turbin Hidrokinetik Darrieus Berdasarkan Bentuk Distribusi Kecepatan Aliran." Media Ilmiah Teknik Sipil 9, no. 1 (2020): 32–43. http://dx.doi.org/10.33084/mits.v9i1.1771.

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Darrieus turbine use blades with a hydrofoil shape, so the rotational ability is influenced by lift force. This caused the initial rotation capability to be very low when compared to the drag turbine type. The flow velocity distribution in the vertical direction indicates a small cross-sectional speed of flow approaching the base of the flow channel, then rising towards the surface. Darrieus Spinning Top turbine is the result of innovation and design based on the concept of flow velocity distribution. Darrieus Spinning Top turbine’s blade shapes are circular-arc and straight-line, adjusting fl
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Hakim, Luthfi, Achmad Rijano, and Mochamad Muzaki. "Analisis Regresi Kecepatan Angin Terhadap Daya Turbin Angin Jenis VAWT Tipe Darrieus-Savonius." Jurnal Energi dan Teknologi Manufaktur (JETM) 1, no. 02 (2018): 15–20. http://dx.doi.org/10.33795/jetm.v1i02.16.

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The Darrieus-Savonius (DS) wind turbine has been widely developed with the aim of improving turbine performance that has been designed. DS wind turbine is a combination of two type of wind turbines, that is Darrieus and Savonius turbine, both turbines are intentionally developed In order to get self-starting on turbine Savonius with low wind speed and able to extract the speed of engine into energy well at high wind speed through Cherrie Darrieus. This study was conducted to analyze the performance of the DS turbine in the wind speed to be energized through the turbine rotation and power to be
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Effendi, Rian, and Rudi Siswanto. "PROSES MANUFAKTUR TURBIN ANGIN SUMBU VERTIKAL TIPE DARRIEUS." JTAM ROTARY 1, no. 2 (2019): 117. http://dx.doi.org/10.20527/jtam_rotary.v1i2.1742.

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Wind turbine is one of the tools yamg work to take advantage of wind allergy. Wind turbines based on the type of rotor there are two types of Darrieus wind turbines and Savonius wind turbines. In the manufacturing process using a type of wind turbine type Darrieus. The darrieus turbine is a wind turbine that utilizes the lift style on the rotor blade. This turbine requires initial energy to spin. The formulation of the problem in making this wind turbine is How does the manufacturing process of vertical turbine type darrieus wind turbine and How much is the cost budget on the manufacturing pro
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Mohan Kumar, Palanisamy, Krishnamoorthi Sivalingam, Teik-Cheng Lim, Seeram Ramakrishna, and He Wei. "Strategies for Enhancing the Low Wind Speed Performance of H-Darrieus Wind Turbine—Part 1." Clean Technologies 1, no. 1 (2019): 185–204. http://dx.doi.org/10.3390/cleantechnol1010013.

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Small wind turbines are key devices for micro generation in particular, with a notable contribution to the global wind energy sector. Darrieus turbines, despite being highly efficient among various types of vertical axis turbines, received much less attention due to their starting characteristics and poor performance in low wind speeds. Radically different concepts are proposed as a potential solution to enhance the performance of Darrieus turbine in the weak wind flows, all along the course of Darrieus turbine development. This paper presents a comprehensive review of proposed concepts with t
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Puspitasari, Dewi, and Kaprawi Sahim. "Effect of Savonius blade height on the performance of a hybrid Darrieus-Savonius wind turbine." Journal of Mechanical Engineering and Sciences 13, no. 4 (2019): 5832–47. http://dx.doi.org/10.15282/jmes.13.4.2019.09.0465.

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A vertical hybrid turbine commonly consists of a Darrieus and Savonius rotor where the Savonius is inside Darrieus turbine. This paper describes the experimental study of hybrid Darrieus-Savonius wind turbines by variation in Savonius blade height. In this case, the effect of the blade height of the Savonius blade was studied experimentally in a subsonic wind tunnel. The effect of the height of a Savonius blade relative to that of Darrieus called blade height ratios δ was investigated to know the hybrid turbine performance. The performance is represented by power and torque coefficient. The re
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Sahim, Kaprawi, Dyos Santoso, and Dewi Puspitasari. "Investigations on the Effect of Radius Rotor in Combined Darrieus-Savonius Wind Turbine." International Journal of Rotating Machinery 2018 (2018): 1–7. http://dx.doi.org/10.1155/2018/3568542.

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Renewable sources of energy, abundant in availability, are needed to be exploited with adaptable technology. For wind energy, the wind turbine is very well adapted to generate electricity. Among the different typologies, small scale Vertical Axis Wind Turbines (VAWT) present the greatest potential for off-grid power generation at low wind speeds. The combined Darrieus-Savonius wind turbine is intended to enhance the performance of the Darrieus rotor in low speed. In combined turbine, the Savonius buckets are always attached at the rotor shaft and the Darrieus blades are installed far from the
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Sahim, Kaprawi, Dyos Santoso, and Agus Radentan. "Performance of Combined Water Turbine with Semielliptic Section of the Savonius Rotor." International Journal of Rotating Machinery 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/985943.

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The Darrieus turbine is a suitable power generation in free stream flow because it is simple in construction, but it has the disadvantage of its small starting torque. The Savonius turbine has a high starting torque but the efficiency is smaller than that of Darrieus turbine. To improve the starting torque of Darrieus turbine, the Savonius buckets are introduced into the Darrieus turbine and the combined turbine is called Darrieus-Savonius turbine. In this study, three semielliptic sections of aspect ratio 0.8 were used for Savonius bucket while the Darrieus blade used three wings of airfoil N
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Mohan Kumar, Palanisamy, Mohan Ram Surya, Krishnamoorthi Sivalingam, Teik-Cheng Lim, Seeram Ramakrishna, and He Wei. "Computational Optimization of Adaptive Hybrid Darrieus Turbine: Part 1." Fluids 4, no. 2 (2019): 90. http://dx.doi.org/10.3390/fluids4020090.

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Darrieus-type Vertical Axis Wind Turbines (VAWT) are promising for small scale decentralized power generation because of their unique advantages such as simple design, insensitive to wind direction, reliability, and ease of maintenance. Despite these positive aspects, poor self-starting capability and low efficiency in weak and unsteady winds deteriorate further development. Adaptive Hybrid Darrieus Turbine (AHDT) was proposed by the author in the past study as a potential solution to enhance low wind speed characteristics. The objective of the current research is to optimize the parameters of
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Qu, Jian Jun, Ming Wei Xu, and Yi Mei. "Aerodynamic Model of Vertical Axis Wind Turbine with Wind Speed Self-Adapting in Drag-Mode." Advanced Materials Research 347-353 (October 2011): 340–43. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.340.

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The structure of vertical axis wind turbine with wind speed-adapting is based on Darrieus straight-bladed turbine. It features that its blades are composed of movable and fixed blades. Through the opening and closing of the movable blades to adapt to the wind speed automatically, the turbine not only can start up in low wind speed, but also realize the conversion from drag-mode to lift-mode. Due to the special structure, the aerodynamic model of this turbine in drag-mode is different from that of Savonius and Darrieus turbine. So in this article, the aerodynamic model of this turbine in drag-m
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Dissertations / Theses on the topic "Turbine Darrieus"

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Gorle, Jagan Mohan Rao. "Development of Circulation Controlled Blade Pitching Laws for Low-Velocity Darrieus Turbine." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2015. http://www.theses.fr/2015ESMA0021/document.

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L'étude développée dans cette thèse concerne le contrôle des performances et des lâchers tourbillonnaires au cours du cycle de rotation d'une hydrolienne à axe vertical de type Darrieus. L'élaboration d'une famille de lois de commande d'incidence de pales exploitant le principe de conservation de la circulation autour de profils en mouvement permet ici le contrôle du fonctionnement de l'hydrolienne ainsi que la maîtrise de son sillage tourbillonnaire afin de préserver l'environnement.L'écoulement 2D est simulé à l'aide du solveur incompressible de Star CCM+ afin de mettre en évidence l'effet d
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Du, Longhuan. "Numerical and experimental investigations of Darrieus wind turbine start-up and operation." Thesis, Durham University, 2016. http://etheses.dur.ac.uk/11384/.

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The performance of small, H-Darrieus vertical axis wind turbines has been investigated numerically and experimentally with particular attention paid to turbine performance at low tip speed ratios (low Reynolds number) and to turbine self-starting. Comprehensive wind tunnel measurements have been performed to provide accurate aerofoil data at low Reynolds numbers and high angles of attack; a unique requirement for vertical axis wind turbine (VAWT) starting studies. Two-dimensional CFD models and blade element momentum (BEM) models were created and assessed to provide new insight into turbine pe
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Villeneuve, Thierry. "Improving the performance of H-Darrieus vertical-axis turbines for their use in isolation and within turbine farms." Doctoral thesis, Université Laval, 2021. http://hdl.handle.net/20.500.11794/69812.

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Les turbines à axe vertical attirent de plus en plus l'attention dans le secteur de la production d'énergie éolienne et hydrolienne. Ce concept de turbine possède quelques avantages intéressants par rapport aux turbines à axe horizontal qui sont déjà bien établies dans le domaine éolien. En fait, des travaux récents ont suggéré que les turbines à axe vertical pourraient être favorablement utilisées dans un contexte de déploiement en parc de turbines. Par contre, cette technologie est relativement jeune et davantage de travaux de recherche et développement sont nécessaires afin d'évaluer pleine
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Bossard, Jonathan. "Caractérisation expérimentale du décrochage dynamique dans les hydroliennes à flux transverse par la méthode PIV (Particle Image Velocimetry). Comparaison avec les résultats issus des simulations numériques." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00848242.

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Cette thèse de doctorat a été réalisée dans le cadre du projet HARVEST, programme de recherche initié en 2001 au LEGI et consacré au développement d'un nouveau concept d'hydrolienne à axe vertical inspiré des turbines Darrieus pour la récupération de l'énergie cinétique des courants marins et fluviaux. Ce travail s'est focalisé sur la mise en place d'un moyen de mesure par Vélocimétrie par Image de Particules deux dimensions - deux composantes (2D-2C) et deux dimensions - trois composantes (2D-3C). L'objectif est d'une part de constituer une base de données expérimentale pour la validation loc
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Clary, Vincent. "Développement d'un modèle simplifié 3D pour le calcul de parcs d'hydroliennes - Validation expérimentale." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAI068/document.

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Des projets d'installation de parcs de plusieurs hydroliennes rapprochées en rivières ou dans les océans ont été récemment démarrés, afin de développer cette source d'énergie renouvelable. Dans ces parcs, les interactions de sillage entre les hydroliennes doivent être calculées puisqu'elles peuvent affecter leur puissance produite. Un modèle CFD stationnaire de type disque d'action couplé aux équations RANS est développé dans ce travail pour calculer la puissance produite et l'écoulement au sein d'un parc d'hydroliennes Darrieus. Ce modèle utilise des répartitions détaillées de force dont l'in
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Brinck, Daniel, and Nicklas Jeremejeff. "The development of a vertical axis tidal current turbine." Thesis, KTH, Energiteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-134361.

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Globally the amount of electricity produced each year is increasing significantly. Between 1980 and 2010 the average increase was 407 billion kWh per year. To be able to meet this increasing electricity demand, without burdening the environment in a too large extent, the research and development of renewable energy production techniques is of great importance. In the light of this we wanted to dedicate our master thesis to help SubseaTechnology Scandinavia AB with the development of a vertical axis tidal current turbine. The project set out to do the initial design proposal of a 2 x 4 meter H-
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Read, Simon. "A theoretical and experimental study of the aerodynamics of the curved-bladed darrieus vertical axis wind turbine." Thesis, Kingston University, 1986. http://eprints.kingston.ac.uk/20507/.

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The aerodynamic performance of the low solidity curved-bladed Darrieus vertical axis wind turbine has been studied both theoretically and experimentally. Initial studies showed the need for an engineering prediction scheme sufficiently accurate to give blade forces as functions of rotational position which did not require excessive computational time. The scheme proposed here develops a suggestion first made by Lapin in 1975, to treat the turbine as two actuator discs, one upwind and the other down-wind. This suggestion, combined with a multiple streamtube approach, the momentum equations in t
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McAdam, Ross. "Studies into the technical feasibility of the Transverse Horizontal Axis Water Turbine." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:6f48d5c6-14ce-4bba-b572-8c628155bb94.

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The Transverse Horizontal Axis Water Turbine (THAWT) has been proposed as a tidal device which can be easily scaled and requires fewer foundations, bearings seals and generators than a more conventional axial-flow device. The THAWT device is a horizontally deployed variant of the Darrieus cross-flow turbine, in which the blades can be oriented into a truss configuration to produce long, stiff multi-bay rotors. This thesis establishes and combines a set of numerical models, which predict the hydrodynamic and structural performance of the THAWT device, with sufficient confidence to assess the fe
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Paillard, Benoît. "Simulation numérique et optimisation d'une hydrolienne à axe transverse avec contrôle actif de l'angle de calage." Brest, 2011. http://www.theses.fr/2011BRES2069.

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Cette thèse s’inscrit dans le contexte de la simulation d’efforts et d’écoulement dynamiques autour d’un profil en mouvement complexe dans un écoulement uniforme : la combinaison d’une rotation autour d’un axe distant et d’un tangage classique autour du quart de corde. Elle vise à mettre en place des méthodes de simulation simples de dimensionnement et de prédiction de performance d’une turbine Darrieus à contrôle actif de pas ; elle vise également à proposer une méthode de calcul permettant la simulation de l’écoulement et l’optimisation de ce type de turbine dont les pales ont leur calage qu
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Beaudet, Laurent. "Étude expérimentale et numérique du décrochage dynamique sur une éolienne à axe vertical de forte solidité." Thesis, Poitiers, 2014. http://www.theses.fr/2014POIT2271/document.

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L'éolienne Darrieus connaît un intérêt accru ces dernières années parce qu'elle représente une solution alternative potentielle de production d'électricité dans les milieux urbains. En particulier,une éolienne de forte solidité peut être choisie car certaines de ses propriétés peuvent être avantageuses pour son implantation proche de zones habitées. A l'inverse, certaines difficultés aérodynamiques émergent. Ce type d'éolienne fonctionne à de faibles vitesses réduites pour lesquelles le décrochage dynamique a un rôle très significatif. L'objectif de ce travail de thèse consiste à compléter la
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Book chapters on the topic "Turbine Darrieus"

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Batista, N. C., R. Melício, V. M. F. Mendes, J. Figueiredo, and A. H. Reis. "Darrieus Wind Turbine Performance Prediction: Computational Modeling." In IFIP Advances in Information and Communication Technology. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-37291-9_41.

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Meziane, Mohamed, Mustapha Faqir, Elhachmi Essadiqi, and Mohamad Fathi Ghanameh. "Numerical Investigation of Hybrid Darrieus-Savonius Wind Turbine Performance." In Advances in Intelligent Systems and Computing. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36671-1_41.

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Bianchini, A., F. Balduzzi, G. Ferrara, and L. Ferrari. "Energy-Yield-Based Optimization of a H-Darrieus Wind Turbine in Skewed Flow." In Wind Energy Exploitation in Urban Environment. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74944-0_12.

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Saleh, Amr, and Brian F. Feeny. "Modal Analysis of a Vertical-Axis Darrieus Wind Turbine Blade with a Troposkein Shape." In Topics in Modal Analysis & Testing, Volume 9. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74700-2_36.

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Kumar, Y., A. R. Sengupta, Agnimitra Biswas, H. M. S. M. Mazarbhuiya, and Rajat Gupta. "CFD Analysis of the Performance of an H-Darrieus Wind Turbine Having Cavity Blades." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-7711-6_70.

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Prakash, Punit, Abhishek Nair, Joseph Manoj, Thomas Mathachan Thoppil, and Nishant Mishra. "Parametric Study of Leading-Edge Tubercle: Bio-inspired Design of Darrieus Vertical Axis Wind Turbine." In Innovations in Sustainable Energy and Technology. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1119-3_22.

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Rainone, Cinzia, Luigi Iuspa, and Antonio Viviani. "Preliminary Design of Variable-Pitch Systems for Darrieus Wind Turbine Using a Genetic Algorithm Based Optimization Procedure." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-41057-5_6.

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Lopez, Omar D., Diana P. Meneses, and Santiago Lain. "Computational Study of the Interaction Between Hydrodynamics and Rigid Body Dynamics of a Darrieus Type H Turbine." In Springer Tracts in Mechanical Engineering. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-16202-7_6.

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Di Rosa, Daniele, Francesco Balduzzi, and Alessandro Bianchini. "A Preliminary Assessment of the Impact of Gurney Flaps on the Aerodynamic Performance Augmentation of Darrieus Wind Turbines." In Wind Energy Exploitation in Urban Environment. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-13531-7_1.

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Vatcher, T. R., and M. C. Hunter. "UTILITY EXPERIENCE WITH THE 50KW DARRIEUS WIND TURBINE." In Intersol Eighty Five. Elsevier, 1986. http://dx.doi.org/10.1016/b978-0-08-033177-5.50411-7.

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Conference papers on the topic "Turbine Darrieus"

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Pereira, Tobias, Nelson Batista, Carlos Cardeira, Paulo Oliveira, and Rui Melicio. "Darrieus Wind Turbine Prototype Control Study." In 2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM). IEEE, 2018. http://dx.doi.org/10.1109/speedam.2018.8445380.

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Meddane, F., Tayeb Yahiaoui, Omar Imine, and L. Adjlout. "NUMERICAL SIMULATON OF A DARRIEUS TURBINE." In Proceedings of CHT-15. 6th International Symposium on ADVANCES IN COMPUTATIONAL HEAT TRANSFER , May 25-29, 2015, Rutgers University, New Brunswick, NJ, USA. Begellhouse, 2015. http://dx.doi.org/10.1615/ichmt.2015.intsympadvcomputheattransf.1280.

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Yanuarsyah, Ilmawan, Vivien Suphandani Djanali, and Bambang Arip Dwiyantoro. "Numerical study on a Darrieus-Savonius wind turbine with Darrieus rotor placement variation." In DISRUPTIVE INNOVATION IN MECHANICAL ENGINEERING FOR INDUSTRY COMPETITIVENESS: Proceedings of the 3rd International Conference on Mechanical Engineering (ICOME 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5046228.

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Chawla, Shubham, Amit Chauhan, and Saroj Bala. "Parametric study of hybrid Savonius-Darrieus turbine." In 2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS). IEEE, 2015. http://dx.doi.org/10.1109/raecs.2015.7453336.

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Niculescu, M. L., M. G. Cojocaru, M. V. Pricop, D. Pepelea, A. Dumitrache, and D. E. Crunteanu. "CFD analysis of a Darrieus wind turbine." In INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS (ICNAAM 2016). Author(s), 2017. http://dx.doi.org/10.1063/1.4992591.

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Mukherjee, Prasenjit, and Ujjwal K. Saha. "Performance Prediction of Darrieus Turbine Through Numerical Analysis." In ASME 2015 Gas Turbine India Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gtindia2015-1266.

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With the rising fossil-fuel prices, energy scarcity and climate-change, renewable energy plays an important role in producing local, clean and inexhaustible energy source to supply world rising demand for electricity. The selection of suitable wind turbine plays a vital role for urban power generation where wind is characterised by unsteadiness and turbulence. Thus, blade aerodynamics of wind turbine has a significant effect on turbine efficiency. In this study, the aerodynamic aspect of a straight bladed Darrieus turbine is numerically analyzed. Two dimensional numerical modelling and simulat
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Worasinchai, Supakit, Grant L. Ingram, and Robert G. Dominy. "The Physics of H-Darrieus Turbine Starting Behaviour." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25461.

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This paper investigates Darrieus turbine starting behaviour and provides a resolution to the contradictory accounts of whether or not the Darrieus turbine can self-start. The paper builds on previous work proposing an analogy between the aerofoil in Darrieus motion and flapping-wing flow mechanisms. This analogy suggests that unsteadiness could be exploited to generate additional thrust and that this unsteady thrust generation is governed by rotor geometry. To confirm the hypothesis, this investigation incorporated unsteady effects into a rotor analysis which resolved the differences between e
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Rehman, Wajiha, Fatima Rehman, and Muhammad Zain Malik. "A Review of Darrieus Water Turbines." In ASME 2018 Power Conference collocated with the ASME 2018 12th International Conference on Energy Sustainability and the ASME 2018 Nuclear Forum. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/power2018-7547.

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Population explosion and rapid industrialization demands increased power production, whereas, environmental concerns are also an issue. The need of time is to develop eco-friendly technology which exploits renewable energy resources. Water is one of the most promising and cheap renewable energy resource. The gross approximate potential of hydro is 128 PW h per year while technically exploitable potential is only 26 PW h per year. Darrieus water turbine (DWT) is like Darrieus wind turbine but it operates in water instead of air. It is an emerging technology for the low head regions. This articl
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Worasinchai, Supakit, Grant L. Ingram, and Robert G. Dominy. "The Physics of H-Darrieus Turbines Self-Starting Capability: Flapping-Wing Perspective." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69075.

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It has been widely reported that Darrieus turbines cannot self-start and that they require external assistance to accelerate to their operating tip speed ratios. However, recent experiments have shown conclusively that H-Darrieus rotors with fixed-pitch blades that employ a symmetrical aerofoil can reliably self-start in steady controlled environments. Previous attempts have also been made to model the starting characteristics but there still exists a significant discrepancy between the experimental data and model prediction, suggesting that our understanding of this starting characteristic re
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Bianchini, Alessandro, Lorenzo Ferrari, and Sandro Magnani. "Start-Up Behavior of a Three-Bladed H-Darrieus VAWT: Experimental and Numerical Analysis." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45882.

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Despite increasing attention paid by both the industrial and the academic worlds, an effective diffusion of Darrieus wind turbines is still hindered by productivity lower than that of classical HAWTs, mainly connected to the critical behavior of these machines during the transient phases and in particular, during the start-up transitory, which has not been investigated in depth in the past. In this paper, a numerical code for the evaluation of the transient behavior of H-Darrieus turbines is presented. The time-dependent code was based on a theoretical approach derived from the Momentum Models
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