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Journal articles on the topic 'Vertical axis wind turbines'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Putri, Salsabillah Shiva, Sudarti ., and Yushardi . "Analisis Cara Kerja Turbin Angin Sumbu Vertikal." Jurnal Pendidikan, Sains Dan Teknologi 2, no. 2 (2023): 1034–36. http://dx.doi.org/10.47233/jpst.v2i2.1356.

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Wind is the movement of air from an area with high pressure to an area with low pressure. Wind energy is one of the many abundant renewable energies. One example of the use of wind energy in Indonesia is the Wind Power Plant. A vertical axis wind turbine is a wind turbine that moves vertically where its axis is perpendicular to the ground surface. The advantage of this vertical axis windmill is that the turbine is not always directed towards the wind. The disadvantage of vertical axis wind turbines is that their efficiency is lower than horizontal axis wind turbines because there is lower wind

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2

Raj Kamal, M. D., P. Harish Krishna, G. Jagadeesh Babu, Ashwin Suresh, and K. Baskar. "Vertical Axis Wind Turbine." Asian Review of Mechanical Engineering 6, no. 2 (2017): 1–3. http://dx.doi.org/10.51983/arme-2017.6.2.2434.

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The main objective of this paper is to design the vertical axis wind turbine. The design of the turbine will include the study of various vertical axis wind turbines. Various wind turbines converting wind energy to a rotary motion have been already suggested and practiced. Among them, the horizontal axis wind turbine is required to have the propeller rotating disk always rightly aligned with the wind direction, whereas the vertical axis wind turbine is Omni-directional, is not influenced at all by the wind direction and is better in respect of the configuration and operation.

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3

Ackshaya Varshini, K. S., Alenkar K. Aswin, H. Rajan, and K. S. Maanav Charan. "Concept design and numerical analysis of hybrid solar–wind turbine." IOP Conference Series: Earth and Environmental Science 850, no. 1 (2021): 012032. http://dx.doi.org/10.1088/1755-1315/850/1/012032.

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Abstract A wind turbine is a device that converts wind energy to electrical energy. External factors such as wind speed and direction shift, as well as turbine blade design considerations, cause a significant amount of energy to be wasted throughout the conversion process. Considering all these losses, a turbine’s average efficiency is roughly 45 percent. The blades of a wind turbine are one of the most crucial factors in determining the turbine’s efficiency. The design and geometry of the blades have a direct impact on performance since it determines how much kinetic energy from the wind is c

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4

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 (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. Bo

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GALLO TORRES, MARLON, ENEKO MOLA SANZ, IGNACIO MUGURUZA FERNANDEZ DE VALDERRAMA, AITZOL UGARTEMENDIA ITURRIZAR, GONZALO ABAD BIAIN, and DAVID CABEZUELO ROMERO. "STATE OF THE ART OF SMALL WIND ENERGY ANALYSING DIFFERENT CONTROLS." DYNA 97, no. 1 (2022): 11. http://dx.doi.org/10.6036/10376.

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There are two wind turbine topologies according to the axis of rotation: horizontal axis, "Horizontal Axis Wind Turbines" (HAWT) and vertical axis, "Vertical Axis Wind Turbines" (VAWT) [2]. HAWT turbines are used for high power generation as they have a higher energy conversion efficiency [2]. However, VAWTs are used in mini wind applications because they do not need to be oriented to the prevailing wind and have lower installation cost.

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Khammas, Farhan Ahmed, Kadhim Hussein Suffer, Ryspek Usubamatov, and Mohmmad Taufiq Mustaffa. "Overview of Vertical Axis Wind Turbine (VAWT) is one of the Wind Energy Application." Applied Mechanics and Materials 793 (September 2015): 388–92. http://dx.doi.org/10.4028/www.scientific.net/amm.793.388.

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This paper reviews the available types of wind turbine which is one of the wind energy applications. The authors intend to give investors a better idea of which turbine is suitable for a particular setting and to provide a new outlook on vertical axis wind turbines. Wind technology has grown substantially since its original use as a method to grind grains and will only continue to grow. Vertical-axis wind turbines are more compact and suitable for residential and commercial areas while horizontal-axis wind turbines are more suitable for wind farms in rural areas or offshore. However, technolog

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7

Wang, Minxing, Xintao Yu, and Wenbo Zhao. "Systematic Characteristics of Vertical and Horizontal Axis Wind Turbine." Highlights in Science, Engineering and Technology 112 (August 20, 2024): 365–70. http://dx.doi.org/10.54097/8wjx0960.

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Wind power is one of the main directions of future renewable energy development. Wind turbines can be classified according to their axes. The two major categories are vertical axis wind turbines and horizontal axis wind turbines, both types have their unique characteristics in efficiency, operating principle, and operating environment. Based on the study on structure and power generating mechanism of vertical axis and horizontal axis wind turbines, compare the characteristics and point out the advantages and disadvantages of both types of wind turbines. This research aims to study the use of v

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Guo, Jia, and Liping Lei. "Flow Characteristics of a Straight-Bladed Vertical Axis Wind Turbine with Inclined Pitch Axes." Energies 13, no. 23 (2020): 6281. http://dx.doi.org/10.3390/en13236281.

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Currently, vertical axis wind turbines (VAWT) are considered as an alternative technology to horizontal axis wind turbines in specific wind conditions, such as offshore farms. However, complex unsteady wake structures of VAWTs exert a significant influence on performance of wind turbines and wind farms. In the present study, instantaneous flow fields around and downstream of an innovative VAWT with inclined pitch axes are simulated by an actuator line model. Unsteady flow characteristics around the wind turbine with variations of azimuthal angles are discussed. Several fluid parameters are the

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9

Rabelo Moraes, André, Carlos Eduardo Silva Abreu, Arthur Eduardo Alves Amorim, and Rodrigo Fiorotti. "COMPUTATIONAL FLUID DYNAMICS ANALYSIS OF FLOW AUGMENTATION SYSTEM APPLIED TO VERTICAL AXIS WIND TURBINES." Revista Ifes Ciência 8, no. 1 (2022): 1–10. http://dx.doi.org/10.36524/ric.v8i1.1325.

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Wind Energy, Convergent omnidirectional nozzle guide, Vertical Axis Wind Turbine, Energy Efficiency Wind energy, considered a stable alternative, can be implemented in cities by means of vertical axis wind turbines, which have better performance against turbulent flow compared to horizontal axis turbines. However, this type of turbine has not evolved technologically significantly in the last few centuries, being the horizontal axis turbines more studied and developed, due to the theoretical better efficiency of these turbines, which creates room for improvement. Therefore, vertical axis wind t

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10

Cho, Soo-Yong, Sang-Kyu Choi, Jin-Gyun Kim, and Chong-Hyun Cho. "An experimental study of the optimal design parameters of a wind power tower used to improve the performance of vertical axis wind turbines." Advances in Mechanical Engineering 10, no. 9 (2018): 168781401879954. http://dx.doi.org/10.1177/1687814018799543.

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In order to augment the performance of vertical axis wind turbines, wind power towers have been used because they increase the frontal area. Typically, the wind power tower is installed as a circular column around a vertical axis wind turbine because the vertical axis wind turbine should be operated in an omnidirectional wind. As a result, the performance of the vertical axis wind turbine depends on the design parameters of the wind power tower. An experimental study was conducted in a wind tunnel to investigate the optimal design parameters of the wind power tower. Three different sizes of gu

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Senthilvel, G., M. Vivekanandan, Shareef H. Nawas, and V. Sivabalamurugan. "Renewable Energy in Rural Areas using Savonious Wind Turbine." Research and Reviews on Experimental and Applied Mechanics 3, no. 1 (2020): 1–6. https://doi.org/10.5281/zenodo.3903587.

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<em>The fundamental extent of this work is to configuration, create a vertical axis wind  turbine for power generations applications in rural territories. Vertical Axis Wind Turbines were chosen to harness the energy from wind through the drag forces. It has a good starting  torque and independent of the wind direction .In this project the fabrication of prototype of Savonius type Vertical Axis Wind Turbine (VAWT) is made using easily available materials like, plywood, sheet metal and bearing. This project is to design and fabricate a roof- mounted vertical axis wind turbine (VAWT) s

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P.P., Dr Ritapure. "Design And Analysis of Modern Vertical Axis Wind Turbine (VAWT)." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem31233.

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With traditional energy sources running low, the world is turning more towards renewable energy, particularly wind power. But current wind turbines have their flaws. Enter the wind turbine tree, a potential solution to these issues. This study looks at various research papers on different wind turbine designs. After analysing them all, it's clear that wind turbine trees with Savonius blades are better than traditional bladed turbines. They take up less space and produce the same amount of power. This paper explores these findings and suggests that wind turbine trees could be the future of wind

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Zhao, Li Hua, Ming Liu, Tie Lv, and Xiao Qun Mei. "Numerical Simulation of Vertical Axis Wind Turbine Blade Airfoil Performance." Applied Mechanics and Materials 529 (June 2014): 173–77. http://dx.doi.org/10.4028/www.scientific.net/amm.529.173.

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Research of blade airfoil aerodynamic characteristics is an important foundation for the vertical axis wind turbine aerodynamic design and performance analysis. CFD simulation software has been applied in this paper. Representative lift-type vertical axis wind turbine airfoil NACA0014, NACA2414, NACA4414, NACA6414, NACA8414 's aerodynamic simulation have been studied. Camber airfoil relative with the change in to the flow velocity is analyzed. At different angles of attack effect on the aerodynamic performance of wind turbines, variation of parameters for airfoil aerodynamic had been analyzed.

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14

Meena, Himanshu. "Design and Construction of Vertical Axis Wind Turbine Blades." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (2022): 2673–75. http://dx.doi.org/10.22214/ijraset.2022.44170.

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Abstract: This study aims to check the Vertical Axis Wind Turbines blades and their different types and their feasibility. Increase in energy demand results in need of clean energy like wind energy. This project is done to design and construct the vertical axis wind turbine blade for small scale usage. The vertical axis wind turbine is having axis of rotation vertically and that’s why yaw motor is eliminated. The demand of renwable energy sources is increasing day by day as the fossil fuel is limited and will end one day as well as it has adverse effect in environment and which leads to green

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15

Dong, Jing, Adriana Correia Da Silva, and Michael Muskulus. "Pile design for X-rotor offshore wind turbine." Journal of Physics: Conference Series 2626, no. 1 (2023): 012004. http://dx.doi.org/10.1088/1742-6596/2626/1/012004.

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Abstract For the foundations of traditional offshore structures in oil and gas industry, the dominant load is in vertical direction. For wind turbines, especially for vertical axis wind turbines, the lateral loads are increased significantly, which makes them the key element of the pile design. The X-rotor offshore wind turbine is a novel concept which is a hybrid of vertical and horizontal axis wind turbines. This paper aims at giving a detailed solution for the pile design of X-rotor type offshore wind turbines based on the existing guidelines and to gain an insight in the influences of the

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Dong, Jing, Silva Adriana Correia Da, and Michael Muskulus. "Pile design for X-rotor offshore wind turbine." Journal of Physics: Conference Series 2626 (June 5, 2023): 10 / 012004. https://doi.org/10.1088/1742-6596/2626/1/012004.

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For the foundations of traditional offshore structures in oil and gas industry, the dominant load is in vertical direction. For wind turbines, especially for vertical axis wind turbines, the lateral loads are increased significantly, which makes them the key element of the pile design. The X-rotor offshore wind turbine is a novel concept which is a hybrid of vertical and horizontal axis wind turbines. This paper aims at giving a detailed solution for the pile design of X-rotor type offshore wind turbines based on the existing guidelines and to gain an insight in the influences of the cyclic lo

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17

Hussein, Dildar, Khairol Amali Ahmad, Ahmad Zulhelmi Mat Nizan, Nazrul Fariq Makmor, and Fakroul Ridzuan Hashim. "Vertical Axis Wind Turbine Application for Power Generation." Jurnal Kejuruteraan si4, no. 2 (2021): 23–27. http://dx.doi.org/10.17576/jkukm-2021-si4(2)-04.

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Concerns over security for energy sources have led many countries to concentrate on obtaining renewable energy sources. In fact, Malaysia has also studied various alternative energy sources including wind energy. However, the terrain of Malaysia does not allow strong winds to move the wind turbines. Therefore, initial efforts to harness energy from the wind were not very successful. Therefore, this study has improved previous studies by highlighting the concept of vertical axis wind turbine using Magnus effect concept.

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18

Zhang, Jintao, Chao Wang, Wenhao Liu, Jianyang Zhu, Yangyang Yan, and Hui Zhao. "Optimization of the Energy Capture Performance of the Lift-Drag Hybrid Vertical-Axis Wind Turbine Based on the Taguchi Experimental Method and CFD Simulation." Sustainability 15, no. 11 (2023): 8848. http://dx.doi.org/10.3390/su15118848.

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In order to improve the energy capture performance of vertical axis lift wind turbines in a low wind speed environment, the drag wind turbine is employed to couple with the design of existing vertical axis lift wind turbines. In contrast to the existing literature, in this work, a computational model is proposed that can simulate the interaction between the turbine and the fluid. The effects of pitch angle (β), installation angle (θ), overlap ratio (ε) and diameter ratio (DL) on the energy capture performance of hybrid vertical axis wind turbines are systematically analyzed based on Taguchi an

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19

Sonune, Gaurav G., Chandani S. Bisen, Chhagendranath K. Nagmote, Akshay K. Dhongade, and Akshay B. Kathwate. "Fabrication of Vertical Axis Wind Turbine and Application." International Journal for Research in Applied Science and Engineering Technology 10, no. 4 (2022): 127–29. http://dx.doi.org/10.22214/ijraset.2022.41206.

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Abstract: Wind energy is one of the renewable energy sources and the trend is positive and increasing year by year. This technology is applied widely in several regions in the world and already has maturity in technology, good infrastructure, and relative cost competitiveness. The application of structural health monitoring (SHM) is crucial especially to evaluate the performance of wind turbines in real-time assessment. One of the main advantages of this type of wind turbine is the fact that is the only one that was accepted by the environmental agencies because the special shape of the rotor

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Кишев, Румен, Олена Виденова, Кольо Андонов та Атанас Ковачев. "Подобрени модели на въздушни турбини, повишаващи тяхната ефективност". Морски научен форум 9, № 1 (2025): 25–33. https://doi.org/10.63662/dcak0235.

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In the paper, analysis is made of the types of wind turbines used to absorb the wind energy and methods are suggested to enhance their efficiency of converting energy into electricity. The article highlights the advantages and disadvantages of both types of turbines – with horizontal and vertical axis of rotation. The reasons for the higher prevalence of the first type are discussed. The need for further studies to improve the characteristics of the wind turbine with vertical axis of rotation is noted. Special attention is paid to methods of improvement the rate of transformation of power and

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Horiuchi, Kenji, Izumi Ushiyama, and Kazuichi Seki. "Straight Wing Vertical Axis Wind Turbines: A Flow Analysis." Wind Engineering 29, no. 3 (2005): 243–52. http://dx.doi.org/10.1260/030952405774354840.

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This research examines the flow velocity characters around lift-based straight-wing vertical-axis wind turbines (SW-VAWT) by numerical simulation. The precision of the prediction technique was confirmed. Furthermore, we estimate the flow behaviour during the wind turbine rotation by using this numerical simulation technique, and evaluate the flow around the SW-VAWT. This paper presents an outline of the work and gives the results of the calculations.

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Al-Rawajfeh, Mohammad A., and Mohamed R. Gomaa. "Comparison between horizontal and vertical axis wind turbine." International Journal of Applied Power Engineering (IJAPE) 12, no. 1 (2023): 13. http://dx.doi.org/10.11591/ijape.v12.i1.pp13-23.

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Since ancient times, wind energy has been exploited in various fields, it was at the beginning used to rotate pumps for the purposes of agriculture and irrigation. At the beginning of the 18th century, wind turbines began to produce electricity with modest capacities. In the following years, the capacities of the turbines increased and it became necessary to deal with this increase by reducing losses and inventing new designs for turbines Suitable for working conditions and installation location. The rotor power coefficient in a wind turbine can reach 0.59 which is called the bets limit. The v

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Mohammad, A. Al-Rawajfeh, and R. Gomaa Mohamed. "Comparison between horizontal and vertical axis wind turbine." International Journal of Applied Power Engineering 12, no. 1 (2023): 12–23. https://doi.org/10.11591/ijape.v12.i1.pp13-23.

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Since ancient times, wind energy has been exploited in various fields, it was at the beginning used to rotate pumps for the purposes of agriculture and irrigation. At the beginning of the 18th century, wind turbines began to produce electricity with modest capacities. In the following years, the capacities of the turbines increased and it became necessary to deal with this increase by reducing losses and inventing new designs for turbines Suitable for working conditions and installation location. The rotor power coefficient in a wind turbine can reach 0.59 which is called the bets limit. The v

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M. Saad, Magedi Moh. "Comparison of Horizontal Axis Wind Turbines and Vertical Axis Wind Turbines." IOSR Journal of Engineering 4, no. 8 (2014): 27–30. http://dx.doi.org/10.9790/3021-04822730.

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Cevasco, D., M. Collu, CM Rizzo, and M. Hall. "On mooring line tension and fatigue prediction for offshore vertical axis wind turbines: A comparison of lumped mass and quasi-static approaches." Wind Engineering 42, no. 2 (2018): 97–107. http://dx.doi.org/10.1177/0309524x18756962.

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Despite several potential advantages, relatively few studies and design support tools have been developed for floating vertical axis wind turbines. Due to the substantial aerodynamics differences, the analyses of vertical axis wind turbine on floating structures cannot be easily extended from what have been already done for horizontal axis wind turbines. Therefore, the main aim of the present work is to compare the dynamic response of the floating offshore wind turbine system adopting two different mooring dynamics approaches. Two versions of the in-house aero-hydro-mooring coupled model of dy

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Shixiao, Wu, and S. G. Sheina. "Study on Installation of the Vertical Axis Wind Turbines on the Upper Floors of High-Rise Buildings." Modern Trends in Construction, Urban and Territorial Planning 2, no. 2 (2023): 19–28. http://dx.doi.org/10.23947/2949-1835-2023-2-2-19-28.

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Introduction. Nowadays the sector of high-rise and super high-rise buildings construction is rapidly developing. The deficiency of non-renewable energy sources and the deterioration of the environment are two major problems faced by every country. Therefore, the wind power engineering is intensely developing and is able not only to stop the rapid deterioration of environmental situation but also to improve accessibility of energy supply and considerably reduce the deficit of energy. It is rational to use the wind power to source the clean renewable energy for the high-rise buildings by install

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Buchner, Abel-John, Julio Soria, Damon Honnery, and Alexander J. Smits. "Dynamic stall in vertical axis wind turbines: scaling and topological considerations." Journal of Fluid Mechanics 841 (February 27, 2018): 746–66. http://dx.doi.org/10.1017/jfm.2018.112.

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Vertical axis wind turbine blades are subject to rapid, cyclical variations in angle of attack and relative airspeed which can induce dynamic stall. This phenomenon poses an obstacle to the greater implementation of vertical axis wind turbines because dynamic stall can reduce turbine efficiency and induce structural vibrations and noise. This study seeks to provide a more comprehensive description of dynamic stall in vertical axis wind turbines, with an emphasis on understanding its parametric dependence and scaling behaviour. This problem is of practical relevance to vertical axis wind turbin

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V, Chandra Mouli. "DESIGN AND DEVELOPMENT OF HYBRID POWER GENERATION BY SOLAR AND WIND ENERGY." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 03 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem29722.

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This In our study, we delved into designing an optimal model for a hybrid solar-wind energy plant, meticulously considering various design parameters such as the number of photovoltaic modules, wind turbine height, number of turbines, and rotor diameter. Our aim was to minimize costs while ensuring consistent energy production. Our findings unequivocally revealed a distinct complementary relationship: during summer months, solar arrays predominantly met energy demands due to abundant solar radiation and minimal wind energy, whereas in winter, with higher wind speeds and reduced solar radiation

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Yuan, Quan. "Recent advances in VAWT aerodynamic performance research: Optimal design." Applied and Computational Engineering 72, no. 1 (2024): 253–62. http://dx.doi.org/10.54254/2755-2721/72/20241051.

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Vertical axis wind turbine is a popular research direction in recent years, and its aerodynamic performance directly affects its power generation efficiency. Using CFD method simulation, the aerodynamic characteristics of wind turbine blades can be deeply analyzed. In this paper, the numerical simulation progress of the aerodynamic performance of vertical axis wind turbines with airfoil as the main object in recent years is studied, the influence of different design parameters on the performance of wind turbines is discussed, the characteristics of current research are summarized, and the futu

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Gitifar, Siavash, Rahim Zahedi, Saba Ziaie, Amir Mohammad Mirzaei, and Mohammad Mahdi Forootan. "Review of different vertical axis wind turbine modeling methods." Future Energy 3, no. 1 (2024): 23–33. http://dx.doi.org/10.55670/fpll.fuen.3.1.4.

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Wind energy can be used as an inexhaustible option for human consumption. Wind turbines offer a promising solution for off-grid areas. Darrieus turbine is one of the types of turbines that can be more efficient than other types if it is used by knowing its characteristics. The complex dynamic mechanism of the flow around the machine has led to its aerodynamic optimization problems remaining complex. This article reviews the applied methods in modeling vertical axis turbines and implicitly shows the turbine operation by presenting the results of these methods. Knowing these methods is important

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Iliev, R., and Ts Tsalov. "Investigation of the efficiency of VAWTs at different wind speeds." IOP Conference Series: Earth and Environmental Science 1128, no. 1 (2023): 012011. http://dx.doi.org/10.1088/1755-1315/1128/1/012011.

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Abstract This paper presents results from an experimental and numerical study of different lift-based and drag-based vertical axis wind turbines (VAWTs). One of the main disadvantages of vertical axis wind turbines is the low efficiency and inability to self-starting at low wind speeds. The task of the study is to determine an efficient geometry of the turbine runner, which can generate higher power at the lowest wind speeds. A comparison has been made of the cut-in speed, rated speed, efficiency, and the self-starting capabilities. This work proposes an aerodynamic scheme for wind turbine run

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Leithead, William E., Abbas Mehrad Kazemi Amiri, Arthur Camciuc, Laurence Morgan, James Carroll, and Julian Feuchtwang. "X-Rotor, an Innovative Offshore Wind Turbine to Reduce Cost of Energy." Energies 18, no. 10 (2025): 2549. https://doi.org/10.3390/en18102549.

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The cost of energy generated by large-scale vertical-axis wind turbines faces great challenges for it to be competitive with conventional horizontal-axis wind turbines for offshore deployment. To become competitive, significant reductions in capital cost and operational costs would be competitive. A novel vertical-axis wind turbine that aims to meet these requirements is proposed: the X-rotor wind turbine. An early-stage feasibility study of exemplary two- and three-bladed 5 MW turbines is reported. The cost savings arising from two aspects of the concept that have the greatest impact, namely

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Gerrie, Cameron, Sheikh Zahidul Islam, Sean Gerrie, Naomi Turner, and Taimoor Asim. "3D CFD Modelling of Performance of a Vertical Axis Turbine." Energies 16, no. 3 (2023): 1144. http://dx.doi.org/10.3390/en16031144.

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Recently, wind turbine research has switched focus to vertical axis wind turbines due to the extensive research that has been performed on horizontal axis wind turbines and the potential of vertical axis wind turbines in built-up areas. This study aims to analyse the performance of a small-scale hybrid vertical axis wind turbine that can switch from functioning as a Darrieus (lift) turbine to a Savonius (drag) turbine by rotating the blades. The turbine was analysed using 3D computational fluid dynamics (CFD) simulations in ANSYS Fluent as the primary method, and the findings were verified usi

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Sadullaev, Nasullo, Shukhrat Nematov, Firdavs Muzaffarov, and Gulrukh Bafoyeva. "Mathematical modeling of vertical axis wind turbines." E3S Web of Conferences 417 (2023): 03008. http://dx.doi.org/10.1051/e3sconf/202341703008.

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The article talks about the growing demand for electricity in the Republic of Uzbekistan and about wind power devices that cover this need, as well as about some parameters that affect their efficiency. In addition, the NACA 4412 airfoil used in the manufacture of turbine blades and the proposed airfoil were analyzed. The parameters influencing the efficiency of vertical axis wind turbines have been studied. New device’s a mathematical model is proposed.

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Salem, Hayder, Adel Mohammedredha, and Abdullah Alawadhi. "High Power Output Augmented Vertical Axis Wind Turbine." Fluids 8, no. 2 (2023): 70. http://dx.doi.org/10.3390/fluids8020070.

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Nowadays, wind energy is one of the most cost-effective and environmentally friendly energies in high demand due to shortages in fossil fuels and the necessity to reduce global carbon footprint. One of the main goals of wind turbine development is to increase the power output of the turbine either by increasing the turbine blade swept area or increasing the velocity of the wind. In this article, a proprietary augmentation system was introduced to increase the power output of vertical axis wind turbines (VAWT) by increasing the free stream velocity to more than two folds. The system comprises t

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Wang, Zhuoran, Gang Hu, Dongqin Zhang, Bubryur Kim, Feng Xu, and Yiqing Xiao. "Aerodynamic Characteristics of a Square Cylinder with Vertical-Axis Wind Turbines at Corners." Applied Sciences 12, no. 7 (2022): 3515. http://dx.doi.org/10.3390/app12073515.

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A preliminary study is carried out to investigate the aerodynamic characteristics of a square cylinder with Savonius wind turbines and to explain the reason why this kind of structure can suppress wind-induced vibrations. A series of computational fluid dynamics simulations are performed for the square cylinders with stationary and rotating wind turbines at the cylinder corners. The turbine orientation and the turbine rotation speed are two key factors that affect aerodynamic characteristics of the cylinder for the stationary and rotating turbine cases, respectively. The numerical simulation r

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MR., CHANDRASHEKAR LOKHANDE, G.R. DESHPANDE MR., SOMANNA BUKKA MR., SHUBHAM HOTKAR MR., and ANURAG GAVHANE MR. "DESIGN AND FABRICATION OF VERTICAL AXIS WIND TURBINE." IJIERT - International Journal of Innovations in Engineering Research and Technology NITET-18 (March 17, 2018): 56. https://doi.org/10.5281/zenodo.1451564.

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<strong><strong> </strong>Wind turbines are considered to be only 59% efficient (Ref.:Bets,law),and more over with large rotor a large area wake formations means that spacing between two turbines has t o be kept very large. Hence the conventional method of wind power generation has to be concluded again with the innovative approach. The VAWT with vertex turbine is one such concept that uses the principle of generating an added vortex using a two vortex generators,in order to improve the performance of the turbine this work will contain the design and development of a vortex chamber using

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Goman, Oleg, Andrii Dreus, Anton Rozhkevych, and Krystyna Heti. "Aerodynamic improvement of Darrieus wind turbine." IOP Conference Series: Earth and Environmental Science 897, no. 1 (2021): 012001. http://dx.doi.org/10.1088/1755-1315/897/1/012001.

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Abstract Until recently, vertical-axis wind turbines are less extensively developed in wind energetics. At the same time, there are a number of advantages in turbines of such type like their independence from the change of wind direction, lower levels of aerodynamic and infrasound noises, higher structural reliability (compared to horizontal engines), etc. With these advantages, vertical-axis wind turbines demonstrate promising capacities. Inter alia, the productiveness of such turbines can be refined through the aerodynamic improvement of the structure and comprehensive optimization of the ro

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Sharma, Raj, Yash Sharma, Ashutosh Hathiya, and Ram Janm Singh. "Design and Analysis of Vertical Axis Wind Turbine Using CFD Analysis." Journal of Energy Engineering and Thermodynamics, no. 34 (June 5, 2023): 1–8. http://dx.doi.org/10.55529/jeet.34.1.8.

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The demand for renewable energy sources has made wind turbines a popular choice for generating electricity. The vertical axis wind turbine (VAWT) is an attractive option due to its compact size, easy maintenance, and ability to operate at low wind speeds.In this project, we aim to design and analyze a VAWT that can efficiently harness wind power and generate electricity.The project involves several steps, including choosing the appropriate design, selecting the materials, determining the optimal blade geometry, and testing the turbine's performance. Key considerations include wind conditions a

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Ravi., S., M. Akash., M. Asmitha., T. Jaikaanth., and Shiek Alaudeen. s. Mohamed. "Design and Analysis of Vertical Axis Wind Turbine Blade with Booster." International Journal of Multidisciplinary Research Transactions 5, no. 6 (2023): 89–95. https://doi.org/10.5281/zenodo.7883100.

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Wind is used from a very long time as a source of electricity. Lots of efforts have been made to develop the horizontal axis wind turbines but vertical axis wind turbines did not get much attention over the past couple of decades. In the current era of energy crisis, it has acquired more significance. Blade is the most important component of a wind turbine which controls a wind turbines performance and the design of other components that are attached to it. Current work introduces a concept for the design of a twisted symmetrical blade for a small-scale vertical axis wind turbine. In our proje

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Yan, Pengfei, Yaning Li, Qiang Gao, Shuai Lian, and Qihui Wu. "Design and Analysis of an Adaptive Dual-Drive Lift–Drag Composite Vertical-Axis Wind Turbine Generator." Energies 16, no. 22 (2023): 7529. http://dx.doi.org/10.3390/en16227529.

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In this paper, based on the lift-type wind turbine, an adaptive double-drive lift–drag composite vertical-axis wind turbine is designed to improve the wind energy utilization rate. A drag blade was employed to rapidly accelerate the wind turbine, and the width of the blade was adaptively adjusted with the speed of the wind turbine to realize lift–drag conversion. The aerodynamic performance analysis using Fluent showed that the best performance is achieved with a blade curvature of 30° and a drag-type blade width ratio of 2/3. Physical experiments proved that a lift–drag composite vertical-axi

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Maleki Dastjerdi, Sajad, Kobra Gharali, Armughan Al-Haq, and Jatin Nathwani. "Application of Simultaneous Symmetric and Cambered Airfoils in Novel Vertical Axis Wind Turbines." Applied Sciences 11, no. 17 (2021): 8011. http://dx.doi.org/10.3390/app11178011.

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Two novel four-blade H-darrieus vertical axis wind turbines (VAWTs) have been proposed for enhancing self-start capability and power production. The two different airfoil types for the turbines are assessed: a cambered S815 airfoil and a symmetric NACA0018 airfoil. For the first novel wind turbine configuration, the Non-Similar Airfoils 1 (NSA-1), two NACA0018 airfoils, and two S815 airfoils are opposite to each other. For the second novel configuration (NSA-2), each of the S815 airfoils is opposite to one NACA0018 airfoil. Using computational fluid dynamics (CFD) simulations, static and dynam

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Shyu, Lih Shyng. "A Pilot Study of Vertical-Axis Turbine Wind Farm Layout Planning." Advanced Materials Research 953-954 (June 2014): 395–99. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.395.

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The purpose of this study is to investigate the parameters that affect the cost-effectiveness of wind farm land use and wind energy harvesting efficiency. The research team applies two reverse rotating vertical-axis wind turbines (VAWTs) to explore how wind speed and various distances of wind turbines affect the operation efficiency of a prospective wind farm. A data acquisition system has been constructed to record the wind speed along with a variety of wind turbine output data in a wind tunnel test in order to identify the layout that help to achieve the best wind harvesting efficiency. The

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Ning, Andrew. "Actuator cylinder theory for multiple vertical axis wind turbines." Wind Energy Science 1, no. 2 (2016): 327–40. http://dx.doi.org/10.5194/wes-1-327-2016.

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Abstract. Actuator cylinder theory is an effective approach for analyzing the aerodynamic performance of vertical axis wind turbines at a conceptual design level. Existing actuator cylinder theory can analyze single turbines, but analysis of multiple turbines is often desirable because turbines may operate in near proximity within a wind farm. For vertical axis wind turbines, which tend to operate in closer proximity than do horizontal axis turbines, aerodynamic interactions may not be strictly confined to wake interactions. We modified actuator cylinder theory to permit the simultaneous solut

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Altmimi, Amani I., Mustafa Alaskari, Oday Ibraheem Abdullah, Ahmed Alhamadani, and Jenan S. Sherza. "Design and Optimization of Vertical Axis Wind Turbines Using QBlade." Applied System Innovation 4, no. 4 (2021): 74. http://dx.doi.org/10.3390/asi4040074.

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Wind energy is considered one of the most important sources of renewable energy in the world, because it contributes to reducing the negative effects on the environment. The most important types of wind turbines are horizontal and vertical axis wind turbines. This work presents the full details of design for vertical axis wind turbine (VAWT) and how to find the optimal values of necessary factors. Additionally, the results shed light on the efficiency and performance of the VAWT under different working conditions. It was taken into consideration the variety of surrounding environmental conditi

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Cazzaro, Davide, Gabriele Bedon, and David Pisinger. "Vertical Axis Wind Turbine Layout Optimization." Energies 16, no. 6 (2023): 2697. http://dx.doi.org/10.3390/en16062697.

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Vertical Axis Wind Turbines (VAWTs) are not mature enough yet for offshore wind farms, but they offer benefits compared to conventional Horizontal Axis Wind Turbines (HAWTs). Higher power densities, reduced wakes, lower center of mass, and different power and thrust curves make VAWTs an interesting option to complement existing wind farms. The optimization of wind farm layouts—finding the optimal positions of wind turbines in a park—has proven crucial to extract more energy from conventional wind farms. In this study, we build an optimizer for VAWTs that can consider arbitrarily shaped layouts

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Trifiananto, Muhammad, Irvan Septianto Putra, and Mochamad Edoward Ramadhan. "ANALISIS PERFORMA TURBIN ANGIN VAWT (VERTICAL AXIS WIND TURBINE) TIPE HYBRID SAVONIUS DARRIEUS NACA 4712." ROTOR 15, no. 1 (2022): 1. http://dx.doi.org/10.19184/rotor.v15i1.29099.

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A wind turbine is a device that converts wind energy into mechanical energy to produce electric power. Wind turbines have a simple working principle, which is to convert wind energy into mechanical energy in the windmill, then the rotation of the turbine0makes the rotor on the generator rotate and generate electricity. There are 2 types of wind turbines: vertical axis wind turbine and horizontal axis wind turbine. This study aims to determine the performance of the medium-scale VAWT hybrid savonius darrieus NACA 4712 wind turbine. The hybrid wind turbine is a combination of savonius and darrie

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Erfort, Gareth, Theodor W. von Backström, and Gerhard Venter. "Reduction in the torque ripple of a vertical axis wind turbine through foil pitching optimization." Wind Engineering 44, no. 2 (2019): 115–24. http://dx.doi.org/10.1177/0309524x19836711.

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Vertical axis wind turbines have a place in the small scale renewable energy market. They are not currently implemented on a commercial scale but have found a niche space in urban areas. Here, the turbulent wind conditions and limited space are more easily tapped into with a vertical axis wind turbine. However, the challenges facing these types of turbines have hampered deployment. One of these issues is the fluctuating torque experienced during operation, which can lead to over-designed power trains. Genetic- and gradient-based optimization is applied to an analytical model of a vertical axis

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Uddin, Rahat, Abdullah Al Araf, Rezaul Khan, and Foysal Ahammed. "Smart Vertical Axis Highway Wind Turbine." International Journal of Engineering and Advanced Technology Studies 10, no. 4 (2022): 20–36. http://dx.doi.org/10.37745/ijeats.13/vol10n42036.

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Energy is an important aspect of our everyday life. The resources we use are limited whereas the population consuming the same is increasing day by day. Nowadays the requirement for electricity is much higher than its generation; hence the main objective of our work is to produce electricity at low cost with no effect on the environment. The objective of the work is to design a wind turbine to recapture wind energy from vehicles on the highway. A considerable amount of wind energy is produced due to the pressure difference created by the moving vehicles on the highways. This wind energy can be

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Rajput, Himanshu, Anil Gupta, Harihar Sah, Manoj Gattani, and Raj kumar Satankar. "Design and development of the divergent wind turbine." IOP Conference Series: Earth and Environmental Science 1084, no. 1 (2022): 012075. http://dx.doi.org/10.1088/1755-1315/1084/1/012075.

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Abstract Wind energy is a prime source of renewable energy nowadays. Wind energy is converted to electrical energy with the help of wind turbines. There is various kind of wind turbines depending upon their axis and shape. The wind turbine which we have designed is a vertical axis helical wind turbine that is circular. Going from top to bottom, the diameter of the circular blades increases. The diameter at the top is the lowest and at the bottom it is maximum. Such a design is proposed to utilize the maximum wind pressure created by vehicles on road. Positive results have been received by test

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