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Journal articles on the topic 'Wind turbine efficiency'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Prasetyo, Alfian Abdi, Fikri Aufa Rafinda, and Herminarto Nugroho. "Perbandingan Metode Optimasi Non-Linear Partical Swarm Optimization (PSO) Dengan Metode Interior Point Untuk Optimasi Daya Pada Turbin Angin Dengan Menentukan Nilai Optimum Pitch Angle." KILAT 11, no. 1 (2022): 103–10. http://dx.doi.org/10.33322/kilat.v11i1.1324.

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Along with the increasing development of technology, demand for electricity is also increasing. To overcome the problem of reducing electricity raw materials originating from fossil energy, new renewable energi is the solution. One of the new renewable energi sources that have high efficiency values is wind. Wind power plants require wind speed to produce efficiency and output power in the wind turbine. The optimization problem of a wind turbine is to determine the angle of placement of the wind turbine in order to produce the desired optimum power. This journal is determining the wind turbine

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2

Doerffer, Piotr, Krzysztof Doerffer, Tomasz Ochrymiuk, and Janusz Telega. "Variable Size Twin-Rotor Wind Turbine." Energies 12, no. 13 (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 w

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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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Jamal, Jamal, A. M. Shiddiq Yunus, and Lewi Lewi. "Pengaruh Kelengkungan Sudu Terhadap Kinerja Turbin Angin Savonius." INTEK: Jurnal Penelitian 6, no. 2 (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 f

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Andrienko, P. D., D. G. Alekseevskiy, O. V. Blyzniakov, O. V. Nemykina, and I. Yu Nemudriy. "EFFICIENCY ANALYSIS OF ELECTROMECHANICAL CONVERSION SYSTEMS OF WIND TURBINES WITH AERODYNAMIC MULTIPLICATION." Tekhnichna Elektrodynamika 2023, no. 6 (2023): 44–53. http://dx.doi.org/10.15407/techned2023.06.044.

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In this article, we have considered the state of development of high-power horizontal wind turbines. The most common wind turbines for operation with variable wind flow speed usually include a frequency converter to ensure the compatibility of generator with network. It leads to decrease in the efficiency of wind energy conversion system, while the use of direct connection of the generator to the axis of wind wheel leads to a significant increase in the weight and cost of the generator. The wind turbine with aerodynamic multiplication is an alternative to such systems. Its prototype with 750 k

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Zhou, Xingguo, Yankang Tian, Yi Qin, Costas A. Charitidis, Tanja K. Milickovic, and Stefania Termine. "An advanced structural health monitoring IoT platform for offshore wind turbine blades." Manufacturing Review 12 (2025): 12. https://doi.org/10.1051/mfreview/2025008.

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Wind energy is renewable and is an essential ingredient in the move towards carbon neutrality and net zero emissions Compared with onshore wind turbines, offshore wind turbines generally experience higher wind speed, thus producing more electricity. However, the increasing dimensions of turbine blades and demands in economic requirements of wind turbines' life cycles, together with the harsh marine environment, including high winds, wave-induced vibrations, sea and rain corrosion and erosion, pose challenges for structural integrity, operational efficiency and maintenance cost. This paper pres

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7

Yershina, A. K. "A METHOD FOR INCREASING THE EFFICIENCY OF A WIND TURBINE." Eurasian Physical Technical Journal 17, no. 2 (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

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Lillahulhaq, Z., A. Muchyiddin, R. W. Suhadak, I. Amirullah, F. D. Sandy, and A. C. Embot. "Experimental Study Wind Turbine Performance of Straight-Savonius and Ice-Wind Type on the Similar proportion Aspect Ratio." Journal of Physics: Conference Series 2117, no. 1 (2021): 012008. http://dx.doi.org/10.1088/1742-6596/2117/1/012008.

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Abstract The Performance of wind turbines at low speed can be improved by Ice-Wind model, particularly in self-starting conditions. Compared to a traditional wind turbine with two blades of the similar area and material, Ice-Wind can increase efficiency by 19%. Research on the Savonius turbine, particularly the Ice-Wind turbine, is challenging. It is because it has many restrictive parameters, such as the height, diameter, and area of the turbine blades. The Ice-Wind turbine shape is obtained by cutting a Savonius turbine. This process led to research on Ice-Wind turbines only under the simila

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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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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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Kurniawati, Diniar Mungil. "Investigasi Performa Turbin Angin Crossflow Dengan Simulasi Numerik 2D." JTT (Jurnal Teknologi Terpadu) 8, no. 1 (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 tu

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Jamal, Jamal. "Pengaruh Jumlah Sudu Terhadap Kinerja Turbin Savonius." INTEK: Jurnal Penelitian 6, no. 1 (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-blad

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13

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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TARASENKO, Mykola, Kateryna KOZAK, Lukman OMEIZA, and Myroslav ZIN. "EFFICIENCY ANALYSIS OF USING TYPICAL AND ATYPICAL WIND ENERGY INSTALATIONS." Herald of Khmelnytskyi National University. Technical sciences 319, no. 2 (2023): 391–400. http://dx.doi.org/10.31891/2307-5732-2023-319-1-391-400.

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The article analyzes the energy efficiency of typical wind turbines (Savonius, Musgrave, Evans, Darier, Magnus, Lentz) and non-typical wind turbines (carousel-petal, double, powerful wind turbines operating on the basis of the Magnus effect, stationary turbine-type wind turbines, airship wind turbines filled with helium ), Sklyarov wind turbine, wind generators, constructions of various wind energy types installations in terms of axis location – vertically axial or horizontally axial, the limit value of the coefficient of wind energy utilization (СWEU), the influence of the control voltage reg

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Erwin, Erwin, Priyana Soemardi Tresna, Surjosatyo Adi, Nurfuadi Sakti, and Wiyono Slamet. "PERFORMANCE INVESTIGATION OF DUAL SHAFT HYBRID VERTICAL TURBINES USING DIRECTIONAL FINS." Eastern-European Journal of Enterprise Technologies 5, no. 8 (101) (2019): 53–58. https://doi.org/10.15587/1729-4061.2019.176889.

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The current direction of wind turbine development is more on horizontal wind turbine types because of its efficiency, which is better than vertical wind turbines. But there are some advantages of this vertical wind turbine in the kind of array turbines and small-sized turbines. In this paper, the research focuses on developing a vertical wind turbine between Savonius and Darrieus turbines and has a dual shaft on one wind energy generating unit. Vertical turbine design with two turbine shafts placed close together is intended to increase turbine efficiency and increase power density. But this d

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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 (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 f

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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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Nawir, Herman, Muhammad Ruswandi Djalal, Adnan Ainun Hasri, and Andi Wely Fauziah. "Modification of the Vertical Axis with Variations in the Number of Blades of the Savonius Wind Turbine." Journal of Advanced Technology and Multidiscipline 2, no. 1 (2023): 1–9. http://dx.doi.org/10.20473/jatm.v2i1.40610.

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The potential wind speed in Indonesia is generally low at 3 m/s to 7 m/s so that this type of vertical axis turbine is considered very suitable for use in wind conditions in Indonesia. There are several types of vertical axis wind turbines. One type of vertical axis wind turbine is the Savonius wind turbine. Many advantages that this type of wind turbine has, such as being able to receive wind from all directions, easy and cheap to manufacture, and can rotate at a fairly low angular speed. This test was carried out to determine the performance of conventional and modified savonius turbines wit

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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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Li, Qiang, and Tiejun Ci. "Application of 8D Method in the Study on Quality Problems of Wind Turbines." Journal of Engineering System 1, no. 1 (2023): 71–76. http://dx.doi.org/10.62517/jes.202302113.

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As a common quality management tool, 8D method is often used in the research of quality related problems of wind turbines. In the post-market service of wind power, it is often faced with low operating efficiency of old units, insufficient power generation and various quality problems. The causes of quality problems in wind turbines are usually multifaceted, involving components such as blades, impellers, and motors. In addition to the large components of the wind turbine itself, extreme weather and natural disasters such as snow, frost, wind and sand will also cause damage to the wind turbine

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Balaji Dhashanamoorthi. "Efficiency improvement on wind turbine through bump up stepper motor." International Journal of Science and Research Archive 6, no. 2 (2022): 246–62. http://dx.doi.org/10.30574/ijsra.2022.6.2.0152.

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This paper presents with the starting torque provision for the wind turbines which are sometimes not rotating even at cut-in wind speed, (rotation sensed through output power of the turbine) here if the power is zero above the cut-in wind speed then the turbine is not in running condition. Here we are using the sensorless sensing method, by providing some extra torque through stepper motor for starting purpose we will improve the efficiency of the wind turbines. Normally the speed of the wind is not a constant, hence by providing this type of set-up can make the wind turbine to rotate to its m

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Lillahulhaq, Zain, Ilmiatul Masfufiah, and Irsyad Amirullah. "EXPERIMENTAL STUDY OF CIRCULAR CUT OFF ENDPLATE EFFECT ON THE SAVONIUS TURBINE." Scientific Journal of Mechanical Engineering Kinematika 7, no. 1 (2022): 63–72. http://dx.doi.org/10.20527/sjmekinematika.v7i1.202.

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The Savonius turbine is widely used because it has a simple design. However, the Savonius turbine has a lower efficiency than the Horizontal Axis Wind Turbine (HAWT). Several studies have been conducted to increase the efficiency of the Savonius turbine. Turbine performance can be improved by reducing the negative vortex by creating a flushing effect. This experiment was conducted to determine the impact of circular cut-off end plates on the Savonius turbine. The research results are shown through turbine performance data on wind turbine angular speed, electric power, static torque, and effici

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Zagubień, Adam, and Katarzyna Wolniewicz. "Energy Efficiency of Small Wind Turbines in an Urbanized Area—Case Studies." Energies 15, no. 14 (2022): 5287. http://dx.doi.org/10.3390/en15145287.

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This study aimed to determine whether the wind zone that characterizes a given area of the country in open area is reflected in the built-up area lying within the zone. Analysis included four Polish cities located in different wind zones. The two-parameter Weibull density distribution function was used to present the wind conditions at each location. Two 3 kW VAWT devices were selected to evaluate the productivity of wind turbines at the locations analyzed. It was shown that the wind zones characterizing the wind potential of a region in an open area have no significant influence on the wind c

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Liabahova, T. V., and O. B. Ivanov. "Active power regulation in wind turbines." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 6 (December 30, 2024): 59–65. https://doi.org/10.33271/nvngu/2024-6/059.

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Purpose. To develop a methodology and determine rational parameters of wind energy installations with doubly fed induction generator to ensure maximum efficiency, taking into account changes in wind flow speed and power regulation to maintain stable and efficient operation of the installation. Methodology. This study used a combination of theoretical analysis and mathematical modeling. Analytical models for estimating wind turbine power were developed through regression analysis, incorporating key parameters such as wind speed, blade pitch angle, and the generator’s synchronous rotation speed.

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Adnan Shawket, Zahra, and Suad Hassen Danok. "Enhancement of small wind turbine efficiency by using nozzle at entrance." NTU Journal of Renewable Energy 8, no. 1 (2025): 51–56. https://doi.org/10.56286/fqtkxt88.

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Wind energy is among the most economical energy sources available nowadays. Renewables, such as wind and solar energy, have become key elements of the global energy mix. Wind energy can generate large amounts of electrical energy through wind turbines that exploit the movement of air. In this study, a horizontal-axis wind turbine was simulated to measure its productivity according to the weather conditions of the city of Kirkuk and increase its efficiency when supported by a nozzle. the wind speed equation was applied to the entrance of a wind turbine, and the effect of narrowing the section a

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Shin, Heesoo, Mario Rüttgers, and Sangseung Lee. "Neural Networks for Improving Wind Power Efficiency: A Review." Fluids 7, no. 12 (2022): 367. http://dx.doi.org/10.3390/fluids7120367.

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The demand for wind energy harvesting has grown significantly to mitigate the global challenges of climate change, energy security, and zero carbon emissions. Various methods to maximize wind power efficiency have been proposed. Notably, neural networks have shown large potential in improving wind power efficiency. In this paper, we provide a review of attempts to maximize wind power efficiency using neural networks. A total of three neural-network-based strategies are covered: (i) neural-network-based turbine control, (ii) neural-network-based wind farm control, and (iii) neural-network-based

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Zalewska, Justyna, Krzysztof Damaziak, and Jerzy Malachowski. "An Energy Efficiency Estimation Procedure for Small Wind Turbines at Chosen Locations in Poland." Energies 14, no. 12 (2021): 3706. http://dx.doi.org/10.3390/en14123706.

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Contrary to the extensive amount of research on large wind turbines, substantial analyses of small wind turbines are still rare. In the present study, the wind energy potential of three locations in Poland is analyzed using real wind data from a five-year period and the parameters of the selected turbine model. Appropriate simulations are performed to assess the energy efficiency of the analyzed investments at a coastal, foothill, or lowland site. According to the results, the most favorable location for a small wind turbine is the coastal site (wind zone I). The payback time at this location

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Rajaram Narayanan, M., S. Nallusamy, and M. Ragesh Sathiyan. "Design and Analysis of a Wind Turbine Blade with Dimples to Enhance the Efficiency through CFD with ANSYS R16.0." MATEC Web of Conferences 207 (2018): 02004. http://dx.doi.org/10.1051/matecconf/201820702004.

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In the global scenario, wind turbines and their aerodynamics are always subjected to constant research for increasing their efficiency which converts the abundant wind energy into usable electrical energy. In this research, an attempt is made to increase the efficiency through the changes in surface topology of wind turbines through computational fluid dynamics. Dimples on the other hand are very efficient in reducing air drag as is it evident from the reduction of drag and increase in lift in golf balls. The predominant factors influencing the efficiency of the wind turbines are lift and drag

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Annor, Nana Kofi, Michael Ramirez, and Cafer Kucukbasol. "Optimization of Wind Turbine Efficiency during Severe Weather." Proceedings of London International Conferences, no. 11 (September 9, 2024): 64–75. http://dx.doi.org/10.31039/plic.2024.11.241.

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Due to the importance of energy in society as well as the negative environmental impact of many commonly used energy sources, namely fossil fuels, it is essential to develop and improve sources of renewable energy. Wind energy is a prominent, widely accessible, and environmentally friendly form of renewable energy created when wind turbines convert the kinetic energy of wind to electricity. Severe weather is one area of concern for wind turbines. This article primarily examines the effects of high wind speeds and lightning on wind turbines. To aid in improving and fostering renewable energy, t

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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

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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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Mitra, Sanchayan, and Shankha Pratim Bhattacharya. "Micro Wind Turbine Design Considerations to Utilize Maximum Wind Energy." Proceedings of The World Conference on Climate Change and Global Warming 2, no. 1 (2025): 27–38. https://doi.org/10.33422/ccgconf.v2i1.1009.

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The transition to renewable energy is essential to combat climate change, ensure sustainability, guarantee energy security, and drive global socio-economic progress. Depletable energy sources, e.g. coal, oil, along with natural gas, are going to end, making the shift toward renewable alternatives like wind, solar, and geothermal energy crucial. It can be expected that wind energy will play a vital factor in the world's clean energy transition. In India, wind power contributes 10% of the total energy production, with its adoption dating back to 1985. Micro wind turbines, designed for decentrali

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Hetyei, Csaba, and Ferenc Szlivka. "COUNTER-ROTATING DUAL ROTOR WIND TURBINE LAYOUT OPTIMISATION." Acta Polytechnica 61, no. 2 (2021): 342–49. http://dx.doi.org/10.14311/ap.2021.61.0342.

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General energy demand is continuously increasing, thus the energy generating assets need to be optimised for higher efficiency. Wind turbines are no exception. Their maximum efficiency can be determined on a theoretical basis. The limit is approached by researches day by day, utilizing the latest developments in airfoil design, blade structure and new and improved ideas in conventional and unconventional wind turbine layouts. In this paper, we are reviewing the conventional and unconventional wind turbines and their place in smart cities. Then, an unconventional wind turbine design, the CO-DRW

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Astolfi, Davide, Francesco Castellani, and Francesco Natili. "Wind Turbine Yaw Control Optimization and Its Impact on Performance." Machines 7, no. 2 (2019): 41. http://dx.doi.org/10.3390/machines7020041.

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The optimization of wind energy conversion efficiency has been recently boosting the technology improvement and the scientific comprehension of wind turbines. In this context, the yawing behavior of wind turbines has become a key topic: the yaw control can actually be exploited for optimization at the level of single wind turbine and of wind farm (for example, through active control of wakes). On these grounds, this work is devoted to the study of the yaw control optimization on a 2 MW wind turbine. The upgrade is estimated by analysing the difference between the measured post-upgrade power an

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Alzgool, Mais, Obada Alrefai, Ahmad Alamleh, and Mohammad Alyaqoub. "Wind flow characteristics through shrouded wind turbine using ANSYS." Edelweiss Applied Science and Technology 8, no. 6 (2024): 3754–69. http://dx.doi.org/10.55214/25768484.v8i6.2819.

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Wind energy is a mature and quick-growing source of energy in many nations. New wind energy technologies must be introduced to increase effectiveness and reduce the cost of wind turbine installation. Wind energy conversion experts believe that shrouded wind turbines are a promising technology that could raise output and efficiency levels. A low-pressure zone is created behind the turbine because of the shroud’s unique structure. As a result, the turbine draws in greater mass flow to produce more power. With the aid of this innovative technology, wind turbines could be used in populated areas w

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Ma, Jinke, Nana Lu, Qitao Sun, and Hao Liang. "Energy efficiency evaluation of wind turbines based on entropy weight method and stacked autoencoder." Journal of Physics: Conference Series 2846, no. 1 (2024): 012004. http://dx.doi.org/10.1088/1742-6596/2846/1/012004.

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Abstract To solve the problems of complex operating conditions of wind turbines and difficult to measure and evaluate energy efficiency, a quantitative evaluation method of energy efficiency of wind turbines based on the entropy weight method (EWM) and stacked automatic encoder (SAE) was proposed. Firstly, based on the Supervisory Control And Data Acquisition (SCADA) data of wind turbines, key evaluation indicators are extracted through preprocessing and feature extraction of wind turbine data. The EWM is used to determine the weights, and deep learning is combined with SAE to comprehensively

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Kuwana, Anna, Xue Yan Bai, Dan Yao, and Haruo Kobayashi. "Numerical Simulation for the Starting Characteristics of a Wind Turbine." Advanced Engineering Forum 38 (November 2020): 215–21. http://dx.doi.org/10.4028/www.scientific.net/aef.38.215.

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There are many types of wind turbine. Large propeller-type wind turbines are used mainly for large wind farms and offshore wind power generation. Small vertical-axis wind turbines (VAWTs) are often used in distributed energy systems. In previous studies on wind turbines, the basic characteristics such as torque coefficient have often been obtained during rotation, with the turbine rotating at a constant speed. Such studies are necessary for the proper design of wind turbines. However, it is also necessary to conduct research under conditions in which the wind direction and wind speed change ov

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Swapnil, Kumar. "Performance Enhancement of Wind Turbine." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 2 (2019): 43–46. https://doi.org/10.35940/ijeat.B3233.129219.

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Wind turbine performance and efficiency used to face big challenges due to the highly random nature of the wind and its own small size. Wind turbine blade geometry has direct implications on the load bearing response and performance of the blade. New Wind Turbine Blade was modelled and detailed analysis was done using Ansys and Matlab. Static, Fatigue, Vibration, Computational Fluid Dynamics and Simulink Analysis was done to compare the performance of both wind turbine blades. Velocity of 83.33 m/sec have been incorporated for analysis. Various different Mathematical Equations and proper metho

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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 assu

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Xia, Guanben, Yang Cao, Zhong Qian, et al. "Optimization Layout and Aerodynamic Performance Research on Double Nautilus Vertical-Axis Wind Turbine." Applied Sciences 13, no. 19 (2023): 10959. http://dx.doi.org/10.3390/app131910959.

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The double vertical-axis wind turbine (VAWT) system serves as a high-performance design solution. The Nautilus wind turbine investigated in this research imitated the structure of a Nautilus shell and is a vertical-axis drag-type wind turbine that exhibits relatively low efficiency. Therefore, the improvement of its wind energy efficiency is of paramount importance. This paper utilizes Computational Fluid Dynamics (CFD) software, based on the Reynolds-averaged Navier–Stokes equations and dynamic meshing techniques, to conduct numerical investigations on the aerodynamic performance of the Nauti

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Arzuaga, Aitor, Asier Estivariz, Oihan Fernández, et al. "Low-Cost Maximum Power Point Tracking Strategy and Protection Circuit Applied to an Ayanz Wind Turbine with Screw Blades." Energies 16, no. 17 (2023): 6204. http://dx.doi.org/10.3390/en16176204.

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This paper provides three different research contributions applied to a Wind Turbine patented in 1606 by the inventor Jerónimo de Ayanz y Beaumont. The windmill under study is the Ayanz Wind Turbine with screw blades. The first contribution consists of an experimental characterization of the Ayanz Wind Turbine, incorporating the enclosure proposed at the patent and showing that the efficiency of the wind turbine is increased between 70% and 90% due to the enclosure being employed. As not many details about the shape of the screw blades are provided at the patent, in this article the nowadays w

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Fialho, Isaac D. Guedes, Eduardo San-Martin, Akihito Boa-Esperança, Feliciano José Ricardo Cangue, and Vencislau Quissanga. "Impact of guide vanes on the performance of Savonius wind turbines." Caderno Pedagógico 22, no. 9 (2025): e18014. https://doi.org/10.54033/cadpedv22n9-119.

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The energy efficiency of wind turbines is essential for sustainable energy generation. Therefore, the objective was to evaluate the design and performance of a Savonius turbine, to provide recommendations to optimize its efficiency and power generation capacity in different wind conditions. To address the problem, the energy available to the turbine is analyzed and the concept of the Betz limit is introduced as a reference point for the conversion efficiency. The relationship between wind speed, power coefficient and torque coefficient, fundamental to understanding turbine performance, is exam

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Zhang, Rui, and Li Zhou. "Optimization of aerodynamic performance in vertical axis wind turbines using corrugated materials." Journal of Physics: Conference Series 2993, no. 1 (2025): 012081. https://doi.org/10.1088/1742-6596/2993/1/012081.

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Abstract The purpose of this study is to explore the optimization effect of wavy materials on the aerodynamic performance of vertical axis wind turbines (VAWT). Two types of wavy materials, soft NBR and hard polyurethane, were attached to the leading edge and side of the wind turbine blades respectively. The effects of material properties and wind turbine assembly position on the performance were analyzed. Various wind speed and rotation speed conditions were set in the experiment, and the torque output and wind power utilization efficiency under various configuration schemes were evaluated. T

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Sofyan, Ahmad Rosyid Idris, Muh Ardiansyah Latif, et al. "Assessment of wind power plant performance using turbine performance and power curves: a case study of PLTB TOLO I Jeneponto." Jurnal Teknologi Elekterika 21, no. 2 (2024): 150–56. https://doi.org/10.31963/elekterika.v21i2.5116.

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Jeneponto Regency in South Sulawesi possesses significant wind potential, making it an ideal location for the development of Wind Power Plants (WPP). However, these WPPs are intermittent due to the inconsistent nature of wind energy, presenting challenges that affect the performance and efficiency of turbines in generating electricity. Therefore, this study aims to evaluate the performance of the SWT-3.6-130 wind turbines at the Tolo 1 WPP in Jeneponto to determine their capability in converting wind energy into electrical energy at specific wind speeds. The evaluation results indicate that th

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Masykur, Masykur, Andre Kurniadi, Maidi Saputra, and Murhaban Murhaban. "Studi Numerik Pengaruh Sudut Kemiringan Sudu Terhadap Performa Turbin Angin Vertikal Tipe Savonius." Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi 7, no. 1 (2021): 25. http://dx.doi.org/10.35308/jmkn.v7i1.3634.

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AbstractWind energy is a renewable energy source that can be felt in everyday life. To convert wind energy into electrical energy, a tool is needed that is a wind turbine. Horizontal Axis Wind Turbine is more widely used and developed today than the vertical type wind turbine. However, the vertical turbine has several advantages compared to the horizontal wind turbine, which is that it can move without depending on the direction of the wind. This study aims to determine the effect of tilt angel of savonius turbine with blades angle 30°, 60° and 90° the turbine power coefficient and determine t

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Hassan, Albusairi, and Fahad Alhajiri Dr. "An Experimental Investigation for the Effect of Blades Material and Geometry in Wind Turbine Performance using Small Turbine." International Journal of Innovative Science and Research Technology (IJISRT) 9, no. 2 (2024): 5. https://doi.org/10.5281/zenodo.10792750.

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The wind turbine is a device that converts the kinetic energy of wind into electrical energy by generated motion. Wind turbines are an increasingly important source of intermittent renewable energy. As increasing the output power, the turbine rotational speeds increases. There are many parameters that effect on the horizontal axis wind turbine efficiency such as the blade design (geometry), material, and the attack angle. The attack angle is the angle between the blade chord and the wind stream lines. In this research, an experimental investigation was conducted for the effect of changing in t

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Zhao, Ming, Thomas Posenauer, and Ee Long Tan. "Effect of Yaw Angle on Large Scale Three-blade Horizontal Axis Wind Turbines." Hydro Science & Marine Engineering 4, no. 1 (2022): 8. http://dx.doi.org/10.30564/hsme.v4i1.4489.

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Offshore Horizontal Axis Wind Turbines (HAWT) are used globally as a source of clean and renewable energy. Turbine efficiency can be improved by optimizing the geometry of the turbine blades. Turbines are generally designed in a way that its orientation is adjustable to ensure the wind direction is aligned with the axis of the turbine shaft. The deflection angle from this position is defined as yaw angle of the turbine. Understanding the effects of the yaw angle on the wind turbine performance is important for the turbine safety and performance analysis. In this study, performance of a yawed H

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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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Zhou, Xingguo, Yankang Tian, and Yi Qin. "IoT platform for offshore wind turbine blade structure health monitoring." MATEC Web of Conferences 401 (2024): 08012. http://dx.doi.org/10.1051/matecconf/202440108012.

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Wind energy, as renewable energy, is critical in targeting carbon neutrality or net zero emissions in order to address global climate change. Compared with onshore wind turbines, offshore wind turbines enjoy generally higher wind speed, thus producing more electric energy. However, the harsh marine environment, including high winds, wave-induced vibrations and and sea and rain corrosion and erosion, can lead to structural damage, reduced operational efficiency and increased maintenance cost. This paper presents a novel Internet of Things (IoT) platform for structural health monitoring (SHM) of

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Khusnawati, Nila, Rianto Wibowo, and Masruki Kabib. "ANALISA TURBIN ANGIN SUMBU HORIZONTAL TIGA SUDU." JURNAL CRANKSHAFT 5, no. 2 (2022): 35–42. http://dx.doi.org/10.24176/crankshaft.v5i2.7683.

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ABSTRAK Turbin angin merupakan suatu alat yang mampu mengubah energi angin menjadi energi mekanik kemudian diubah menjadi energi listrik melalui generator turbin. Efisiensi turbin angin poros horizontal ini dapat ditingkatkan untuk mendapatkan koefisien daya yang maksimal. Tujuan dari penelitian ini, adalah untuk mengetahui sudut sudu pada kecepatan angin (m/s), putaran turbin (rpm), torsi (N.m), kecepatan sudut ( rad/s ), daya angin ( watt ), koefisien daya (%), tip speed ratio (%). Pada hubungan grafik sudut sudu pada putaran poros, putaran turbinTarget analisa Performansi adalah turbin angi

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