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Journal articles on the topic 'Turbine blade'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Rudy, Soenoko, and Purnami Purnami. "BOWL BLADED HYDROKINETIC TURBINE WITH ADDITIONAL STEERING BLADE NUMERICAL MODELING." Eastern-European Journal of Enterprise Technologies 4, no. 8 (100) (2019): 24–36. https://doi.org/10.15587/1729-4061.2019.173986.

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Bowl bladed kinetic turbine has a low performance. This is a simple turbine, easy to make, easy to install and inexpensive. Kinetic turbines are made specifically for rural areas which may be far from technology facilities. The reason why this kind of turbine is still being used is to meet the electric needs of rural areas. Research on this bowl bladed kinetic turbine is still often done, although not too much. There have been many efforts made to improve turbine kinetic performance. This simulation study was conducted to compare the conventional bowl bladed kinetic turbine with the bowl blade

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2

Wijaya, Rudi Kusuma, and Iwan Kurniawan. "Study Experimental Darrieus Type-H Water Turbines Using NACA 2415 Standard Hydrofoil Blade." Jurnal Pendidikan Teknik Mesin Undiksha 9, no. 2 (2021): 109–23. http://dx.doi.org/10.23887/jptm.v9i2.29257.

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Telah dilakukan kaji eksperimental turbin air Darrieus tipe-H menggunakan blade hydrofoil standar NACA 2415 untuk mengetahui nilai torsi statik dan dinamik yang dihasilkan turbin air Darrieus tipe-H 3 blade dan 6 blade, pengujian menggunakan water tunnel dimensi 6m x 0.6m x 1m. Variasi tiga blade dan enam blade, dengan diameter turbin 0.44 m x 0.15 m pada turbin luar dan 0.18 x 0.14 m pada turbin bagian dalam, panjang chord 0.10 m dengan variasi sudut serang 0º sampai dengan 360º, variasi kecepatan air pertama 0.3 m/s, variasi kecepatan aliran air kedua 0.65 m/s. Kecepatan air 0.3 m/s enam bla

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3

Xing, Zhitai, Yan Jia, Lei Zhang, et al. "Research on Wind Turbine Blade Damage Fault Diagnosis Based on GH Bladed." Journal of Marine Science and Engineering 11, no. 6 (2023): 1126. http://dx.doi.org/10.3390/jmse11061126.

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With the increasing installed capacity of wind turbines, ensuring the safe operation of wind turbines is of great significance. However, the failure of wind turbines is still a severe problem, especially as blade damage can cause serious harm. To detect blade damage in time and prevent the accumulation of microdamage of blades evolving into severe injury, a damage dataset based on GH Bladed simulation of blade damage is proposed. Then, based on the wavelet packet analysis theory method, the MATLAB software can automatically analyze and extract the energy characteristics of the signal to identi

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4

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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5

Phadnis, Mandar, Alejandra S. Escalera Mendoza, Michael Jeong, et al. "Comparison of 25 MW downwind and upwind turbine designs with individual pitch control." Journal of Physics: Conference Series 2767, no. 3 (2024): 032039. http://dx.doi.org/10.1088/1742-6596/2767/3/032039.

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Abstract As conventional upwind wind turbines grow larger, the increased mass and flexibility of the longer blades present challenges concerning costs, structural loads, and safety constraints such as tower clearance. At extreme scales, wind turbines in a downwind configuration may provide a feasible alternative to address these challenges by allowing lightweight, flexible blades that can reduce capital costs and blade loads while maintaining safety margins. Downwind turbine blades suffer from increased fatigue loading due to the tower shadow effect. In this study, novel downwind, three-bladed

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6

Cao, Kathy, Kelsey Shaler, and Nick Johnson. "Comparing wind turbine aeroelastic response predictions for turbines with increasingly flexible blades." Journal of Physics: Conference Series 2265, no. 3 (2022): 032025. http://dx.doi.org/10.1088/1742-6596/2265/3/032025.

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Abstract Highly flexible blades are becoming more prevalent designs as a potential solution to the transportation challenges associated with large-scale wind turbine rotors. However, there is currently no quantitative definition of “highly flexible” blades. To further develop turbines with highly flexible blades, a precise definition of the term and accurate simulations of turbines with such blades are required. Assumptions made in the traditional aerodynamic model, Blade Element Momentum (BEM) theory, are violated in turbines with flexible blades. However, Free Vortex Wake (FVW) methods can m

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7

Renhard Januard Sitindaon and Rafil Arizona. "Comparison of variations in blade type and impeller height with 9 blades on power and efficiency in vortex turbines." Jurnal Teknik Mesin Indonesia 18, no. 2 (2023): 21–26. http://dx.doi.org/10.36289/jtmi.v18i2.437.

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The lack of maximum use of alternative energy, especially water energy, so this research will be carried out with water turbines, namely vortex turbines. This turbine utilizes a water vortex to drive the blade and can operate at a relatively low head. This study aims to determine the effect of blade type on the power and efficiency of a more optimal turbine and get the best analysis results on the comparison of straight and curved blade type impellers on the power and efficiency of a 205 mm, 210 mm, and 215 mm high impeller vortex turbine with a total of 9 blades. The method used in this resea

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8

Alipour, Ramin, Roozbeh Alipour, Seyed Saeid Rahimian Koloor, Michal Petrů, and Seyed Alireza Ghazanfari. "On the Performance of Small-Scale Horizontal Axis Tidal Current Turbines. Part 1: One Single Turbine." Sustainability 12, no. 15 (2020): 5985. http://dx.doi.org/10.3390/su12155985.

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The blade number of a current tidal turbine is one of the essential parameters to increase the stability, performance and efficiency for converting tidal current energy into rotational energy to generate electricity. This research attempts to investigate the effect of blade number on the performance of a small-scale horizontal tidal current turbine in the case of torque, thrust coefficient and power coefficient. Towards this end and according to the blade element momentum theory, three different turbines, i.e., two, three and four-bladed, were modeled using Solidworks software based on S-814 a

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9

McNerney, G. M., C. P. van Dam, and D. T. Yen-Nakafuji. "Blade-Wake Interaction Noise for Turbines With Downwind Rotors." Journal of Solar Energy Engineering 125, no. 4 (2003): 497–505. http://dx.doi.org/10.1115/1.1627830.

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The interaction between the rotor and the tower wake is an important source of noise for wind turbines with downwind rotors. The tower wake modifies the dynamic pressure and the local flow incidence angle as seen by the blades and, hence, modifies the aerodynamic loading of the blade during blade passage. The resulting n per revolution fluctuation in the blade loading (where n is the number of blades) is the source of low frequency but potentially high amplitude sound levels. The Wind Turbine Company (WTC) Proof of Concept 250 kW (POC) wind turbine has been observed by field personnel to produ

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10

K, Anoosha. "THERMAL ANALYSIS OF A GAS TURBINE ROTAR BLADE." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem31271.

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Gas turbines have an important role in electric power generation gasterband technology is used in a variety of configurations for electric power generation. Turbine blades are mainly affected due to static loads also the temperature has significant effect on the gas turbine rotor blades. This paper summarises the design and steady state of thermal analysis of gas turbine router blade on which Solid Works 2020 of software is used for design of solid model of the turbine blade. Ansys 16 software is used for analysis of finite element model generated by meshing of the Blade and design calculation

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11

Peczkis, Grzegorz, Piotr Wiśniewski, and Andriy Zahorulko. "Experimental and Numerical Studies on the Influence of Blade Number in a Small Water Turbine." Energies 14, no. 9 (2021): 2604. http://dx.doi.org/10.3390/en14092604.

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This paper demonstrates the procedure of blade adjustment in a Kaplan-type water turbine, based on calculations of the flow system. The geometrical adjustment of a twisted blade with varying chord length is described in the study. Computational fluid dynamics (CFD) analysis was used to characterise aerofoil and turbine performance. Furthermore, two turbines, with a different number of blades, were designed, manufactured, and tested experimentally. The numerical model results were then compared with the experimental data. The studies were carried out with different rotational velocities and dif

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12

Sahin, M., and T. Farsadi. "Effects of Atmospheric Icing on Performance of Controlled Wind Turbine." IOP Conference Series: Earth and Environmental Science 1121, no. 1 (2022): 012011. http://dx.doi.org/10.1088/1755-1315/1121/1/012011.

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Abstract Icing deteriorates the performance of wind turbine rotors by changing the blade airfoils’ shapes. It decreases the lift, increases the drag, and subsequently causes power production losses and load increase on turbines’ structures. In the present study, the effects of atmospheric icing on the performance of a controlled large-scale wind turbine is estimated through simulations. To achieve the target, the MS (Mustafa Sahin) Bladed Wind Turbine Simulation Model is used for the analyses of the National Renewable Energy Laboratory (NREL) 5 MW turbine with and without iced blades. Icing mo

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13

Zhang, Xiao, and Maosheng Zheng. "Numerical Simulation of Fluid-Structure Coupling for a Multi-Blade Vertical-Axis Wind Turbine." Applied Sciences 13, no. 15 (2023): 8612. http://dx.doi.org/10.3390/app13158612.

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The aerodynamic characteristics of the vertical-axis wind turbine with three, four, five, and six blades are studied numerically. A coupling model of fluid flow and solid turbine blade is established to model the interactions between air and wind turbine. The pressure distribution and blade deformation affected by air are obtained and discussed. For the four wind turbines with different numbers of blades, the maximum pressure in the entire machine structure occurs at the variable angle position of the blades in the windward region under the same wind speed. Mainly due to the rapid airflow vari

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14

Pratama Ricky Novianto, Fahrudin Fahrudin, Damora Rhakasywi, and Tatik Juwairiyah. "Analysis of Blade Quantity Variations on Horizontal Axis Wind Turbine Type Taperless Airfoil SG6043 Using Blade Element Momentum (BEM)." Technium: Romanian Journal of Applied Sciences and Technology 17 (November 1, 2023): 367–72. http://dx.doi.org/10.47577/technium.v17i.10109.

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The design of taperless blades using the SG6043 Airfoil with different blade quantities through BEM simulation method is expected to serve as a reference for determining the design that yields the best operational efficiency. Simulation results show that the highest Cp value for the Taperless blade design is achieved with a variation of 3 wind turbine blades, resulting in a Cp value of 0.45 in the BEM simulation. The highest Cp value for the Taperless blade design with 4 wind turbine blades is 0.48 in the BEM simulation. Meanwhile, the highest Cp value for the Taperless blade design with 5 win

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15

Chen, Kun Nan, and Wei Hsin Gau. "Structural Optimization on Composite Blades of Large-Scale Wind Turbines." Applied Mechanics and Materials 284-287 (January 2013): 958–62. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.958.

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Turbine blades used in large-scale, horizontal-axis wind turbines are usually made from composite materials to reduce the weight while attaining a reasonable strength to weight ratio. The design of large wind turbine blades must consider both their aerodynamic efficiency and structural robustness. This paper presents an optimum design scheme for composite wind turbine blades. The first optimization phase produces the aerodynamic outer shape of a blade framed by airfoils with optimum cord lengths and twist angles along the blade spanwise direction. The second phase provides optimal material dis

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16

Xu, Lijun, Lei Xu, Lei Zhang, and Ke Yang. "Design of Wind Turbine Blade with Thick Airfoils and Flatback and its Aerodynamic Characteristic." Open Mechanical Engineering Journal 9, no. 1 (2015): 910–15. http://dx.doi.org/10.2174/1874155x01509010910.

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large-scaled blade has posed many problems related to design and production. After introducing the features of blade with thick airfoils and flatback, based on relevant parameters of Huaren 100 kW wind turbine, the paper designed blade with thick airfoils and flatback, introduced blade parameter design, and analyzed the aerodynamic performance of blades using GH bladed software, obtaining the relationship between power output of wind turbine with blade tip speed ratio Cp. Furthermore, it analyzed the aerodynamic performance of original design blades, modified blades and Huaren 100 kW blades, a

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17

Pribadyo, Pribadyo, Hadiyanto H, and Jamari J. "Simulasi Performa Turbin Propeller Dengan Sudut Pitch Yang Divariasikan." Jurnal Mekanova: Mekanikal, Inovasi dan Teknologi 6, no. 1 (2020): 54. http://dx.doi.org/10.35308/jmkn.v6i1.2257.

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Propeller turbine performance can be improved by changing the turbine design parameters. One method that was developed is to vary the blade angle on the runner's blades. Analysis of the influence of blade angle on propeller turbine performance is done through numerical simulations based on computational fluid dynamics. The simulation is done with variations of propeller turbine blade angles of 180, 230, and 280 at flow rates of 0.08 m/s to 0.5 m/s. Simulation results show turbines with 250 blade angles have the best performance compared to turbine blade angles of 230 and 280. While the turbine

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18

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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19

Long, Tianyu, Xiaodong Chen, Li Qiu, Jia Han, and Qi Dong. "Wind turbine blades with hybrid fiber composite: Tensile properties and numerical verification." Thermal Science 28, no. 3 Part A (2024): 2109–14. http://dx.doi.org/10.2298/tsci2403109l.

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Wind turbine blades are the main component of wind turbines to capture effective wind energy, and require good quality and reliable performance. Therefore, the manufacturing cost of wind turbine blades is much higher than that of other components of wind turbines. The blade is a slender elastomer prone to vibration. The wind turbine vibration always arises in the blade instability. At the same time, the blade is also a typical aerodynamic component. In the process of rotation, it will not only produce mechanical vibration but also bear aerodynamic force. In this paper, the mechanical propertie

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20

Rozi, K., T. K. B. Fajar, and A. Z. Farras. "Kajian karakteristik aerodinamis turbin hidrokinetik Savonius dengan 2 semicircular blade-rounded leading edge." Dinamika Teknik Mesin 12, no. 2 (2022): 84. http://dx.doi.org/10.29303/dtm.v12i2.522.

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This numerical work was carried out to investigate the flow field characteristics through Savonius hydeokinetic turbine with 2 smicircular blade-rounded leading edge. The effects of blade thickness, and freestream velocity were simulated using ANSYS FLUENT with k-SST model. The results show that the structure of the flow changes with increasing turbine rotation. The coefficient of torque and power for thin blades is higher than for thicker turbine blades and its values increase with the increase in the freestream velocity. The turbin wirh thin blade thickness better than with thick blade thick

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21

Winarto, Eko Wismo, Sugiyanto Sugiyanto, Soeadgihardo Siswantoro, and Isworo Djati. "Turbin Hibrid Bi-Directional Sebagai Pemanen Energi pada Thermoacoustic Engine." Jurnal Rekayasa Mesin 12, no. 1 (2021): 19. http://dx.doi.org/10.21776/ub.jrm.2021.012.01.3.

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Bi-directional turbines that are commonly applied to convert wave energy into motion energy are the types of Impulse turbines and Wells turbines. Both types of turbines each have advantages and disadvantages. In this research, hybrid turbine type is designed and made to bridge the weaknesses in impulse turbine and turbine wells. Hybrid turbines are made by placing impulse turbines on the outside while turbine wells placed on the inside. In this research, the variation of hybrid bi-directional turbine design aims to find out the most optimal design of this turbine type. Six variations were carr

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22

Shah, Imran, Abdullah Khan, Muhsin Ali, et al. "Numerical and Experimental Analysis of Horizontal-Axis Wind Turbine Blade Fatigue Life." Materials 16, no. 13 (2023): 4804. http://dx.doi.org/10.3390/ma16134804.

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Horizontal-axis wind turbines are the most popular wind machines in operation today. These turbines employ aerodynamic blades that may be oriented either upward or downward. HAWTs are the most common non-conventional source of energy generation. These turbine blades fail mostly due to fatigue, as a large centrifugal force acts on them at high rotational speeds. This study aims to increase a turbine’s service life by improving the turbine blades’ fatigue life. Predicting the fatigue life and the design of the turbine blade considers the maximum wind speed range. SolidWorks, a CAD program, is us

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23

Bashir Isyaku Kunya, Bala Abdullahi, and Najib Aminu Ismail. "Investigation on the Performance of Micro Wind Turbine Rotor Using Whale-Inspired Blade Based on Low Wind Regime." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 101, no. 2 (2023): 184–96. http://dx.doi.org/10.37934/arfmts.101.2.184196.

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The potential of wind energy in a country varies depending on the region. For example, in Northern regions of Nigeria, cities like Minna, Sokoto, Kano and Jos are the most potential locations and experience not more than 5.24 m/s mean wind speed with Jos having the highest average wind speed. In most cases internationally wind turbines are design to operate at the rated wind speed much greater than mean wind speeds in Nigeria (in most cases above 8 m/s). Installation of these wind turbines in a similar location to Nigeria (in terms of wind speed condition) will significantly decrease their per

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24

Saowalak Thongdee, Churat Tararuk, Natthawud Dussadee, Rameshprabu Ramaraj, and Tanate Chaichana. "Study on performance of a savonius wind turbines related with the blade angle." Maejo International Journal of Energy and Environmental Communication 1, no. 2 (2019): 32–36. http://dx.doi.org/10.54279/mijeec.v1i2.244916.

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This research aimed to compare the performance of Savonius vertical axis wind turbines through blade numbers and different blade angles. In this study, applicable turbines having 4, 6, 8, 12, 16 and 18 numbers of blades with the angles of the blades of -15°, -5°, 0°, 5° and 15°, respectively. The rotor used was a semicircle shaped blade made from PVC material and has a blade diameter of 6 cm and 30 cm for both rotor diameter and height. The turbine was tested deadweight range of 0-0.49 kg at 4 m/s wind speed. The results showed that the blade angle has a positive effect on increasing the power

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25

Kurihara, Eru, Hiroki Yasui, Yuito Isayama, and Hiromitsu Hamakawa. "Numerical Simulation of Unsteady Flow Past a Rotating Wells Turbine with Modified Blades." Journal of Ocean Engineering and Technology 39, no. 1 (2025): 73–81. https://doi.org/10.26748/ksoe.2024.092.

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Wells turbines used in wave power generation have the advantage of being usable in reciprocating flow, but they also face many unsolved problems, such as self-starting performance, low efficiency, and noise. The purpose of this study is to assess the effect of serrations added to symmetrical blades used in Wells turbines on stall characteristics and lift–drag ratio. In this study, large eddy simulation was employed as numerical method to clarify the spatio-temporal behavior of the flow field, including flow rate fluctuations. In addition to turbine blade modifications, this study also evaluate

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26

Altan, Gurkan, and Burcin Deda Altan. "Effect of Blade Gap Ratio on Turbine Performance in Drag-Based Vertical-Axis Wind Turbines." Processes 12, no. 10 (2024): 2215. http://dx.doi.org/10.3390/pr12102215.

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The aim of this study was to improve the performances of three-bladed vertical-axis wind turbines with gap distance. For this purpose, turbine design conditions such as a gap ratio between the blades and the addition of blades were changed to provide performance increase, and an aerodynamic performance-enhancing performance setup placed in front of the vertical-axis wind turbine was also used. Therefore, in this study, the effects of gap distance and blade addition on wind turbine performance were investigated, especially by keeping the aspect ratio of the vertical-axis wind turbine constant.

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27

Mashiachidi, Makgwantsha Hermelton, and Dawood A. Desai. "Fatigue life prediction of turbine blades with geometric imperfections made of stainless steel." Tribology and Materials 2, no. 4 (2023): 172–80. http://dx.doi.org/10.46793/tribomat.2023.017.

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This research addresses critical challenges faced by steam turbine blades, particularly in low-pressure (LP) turbines, where premature failures are common due to stress concentrations at the blade root area. The study introduces a numerical methodology aimed at predicting the life of mistuned steam turbine blades, with a focus on variations in blade geometry which have received limited exploration in existing literature. A simplified, scaled-down mistuned steam turbine bladed disc model was developed using Abaqus finite element software. Acquisition of steady-state stress response of the disc

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28

Xu, Zhi Qiang, and Jian Huang. "Research on Wind Turbine Blade Loads and Dynamics Factors." Advanced Materials Research 1014 (July 2014): 124–27. http://dx.doi.org/10.4028/www.scientific.net/amr.1014.124.

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Wind turbines consists of three key parts, namely, wind wheels (including blades, hub, etc.), cabin (including gearboxes, motors, controls, etc.) and the tower and Foundation. Wind turbine wheel is the most important part ,which is made up of blades and hubs. Blade has a good aerodynamic shape, which will produce aerodynamic in the airflow rotation, converting wind energy into mechanical energy, and then, driving the generator into electrical energy by gearbox pace. Wind turbine operates in the natural environment, their load wind turbine blades are more complex. Therefore load calculations an

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HARSHA, D. A., and A. DR.YOGANANDA. "CFD ANALYSIS ON RADIALCOOLING OF GAS TURBINE BLADE." IJIERT - International Journal of Innovations in Engineering Research and Technology 4, no. 7 (2017): 47–51. https://doi.org/10.5281/zenodo.1459059.

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<strong>Gas turbines are extensively used for air craft propulsion,land based power generation and industrial applications. Thermal efficiency of gas turbine improved by increasing turbine rotor inlet temperature. The current rotor in let temperature in advanced gas turbine is for above the melting point of blade material. A sophisticated cooling scheme must be developed for continuous safe operation of gas turbines with high performance. Gas turbines are cooled externally and internally. Several methods have been suggested for the cooling of blades and vanes. The techniques that involve to co

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Sarjito, Agus Dwi Anggono, Wijianto, Fauzan Anas Wirawan, Sidik Kurniawan, and Bagus Dwi Nugroho. "Design of Archimedes Screw Turbine by Multi-step Selections on Parameter Pitch Distance, Blade Number, and Blade Angle." International Journal of Mathematical, Engineering and Management Sciences 10, no. 2 (2025): 554–66. https://doi.org/10.33889/ijmems.2025.10.2.028.

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One of the water turbines called an Archimedes screw turbine (ASTs) is appropriate to run in a low head of just less than 5 m and works at a wide range of discharge operations. The performance of the turbine is influenced by some aspect that requires optimization. The research aims to characterize turbine performance by selecting the pitch distance of the blade, the number of blades, and the angle of the blade. Initiated by developing Archimedes screw turbine of 500 mm length and blade diameter of 100 mm, using screw blades at different distances of 50, 70, 100, 200, and 300 mm. Then continue

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31

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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32

Hery Soegiharto, Achmad Fauzan, Andinusa Rahmandika, and Ahmad Nur Sidiq. "Savonius wind turbine blade selection based on computational fluid dynamics." JTTM : Jurnal Terapan Teknik Mesin 5, no. 2 (2024): 299–307. http://dx.doi.org/10.37373/jttm.v5i2.586.

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The Savonius vertical axis wind turbine is widely used because of its simple design and efficiency at low wind speeds. The next development is the mini multi-blade Savonius helical wind turbine. At this miniature size, the performance of a mini multi-blade helical Savonius turbine due to variations in the number of blades and its impact on the energy produced has not been investigated in depth. Therefore, adjustments to the size and number of blades need to be made to optimize the performance of this turbine. The research aims to obtain the performance of the Savonius type S wind turbine with

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33

Boedi, Silvy Dollorossa, Josephine Sundah, Meidy Kawulur, and Franklin Bawano. "Design and Construction of Kinetic Turbine External Hinged Blade as A Picohydro Scale Power Plant." International Journal of Innovative Technology and Exploring Engineering 12, no. 1 (2022): 43–47. http://dx.doi.org/10.35940/ijitee.a9367.1212122.

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The problem of energy shortage is still a global problem which is especially felt in developing countries whose residents live in villages, which still require the development of more efficient energy sources. Limited fossil fuels make water energy the best energy option. The problem of meeting the availability of electricity in rural areas by utilizing water energy as new and renewable energy is a long-term goal in this research. The current research on kinetic turbines is a combination of two types of waterwheels, which have a vertical axis (overshot and swell turbines). The vertical shaft i

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Fritz, Erik, André Ribeiro, Koen Boorsma, and Carlos Ferreira. "Aerodynamic characterisation of a thrust-scaled IEA 15 MW wind turbine model: experimental insights using PIV data." Wind Energy Science 9, no. 5 (2024): 1173–87. http://dx.doi.org/10.5194/wes-9-1173-2024.

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Abstract. This study presents results from a wind tunnel experiment on a three-bladed horizontal axis wind turbine. The model turbine is a scaled-down version of the IEA 15 MW reference wind turbine, preserving the non-dimensional thrust distribution along the blade. Flow fields were captured around the blade at multiple radial locations using particle image velocimetry. In addition to these flow fields, this comprehensive dataset contains spanwise distributions of bound circulation, inflow conditions and blade forces derived from the velocity field. As such, the three blades' aerodynamics are

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Chrzanowski, Wojciech, Wojciech Napadłek, and Zdzisław Bogdanowicz. "Analysis of degradation and damage processes of power components of steam turbines." Bulletin of the Military University of Technology 72, no. 2 (2023): 39–63. http://dx.doi.org/10.5604/01.3001.0054.3655.

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The article is a review of the literature data related to the wear of steam turbine blades. The literature review have found that the main causes of blade damage are erosion, corrosion, and the occurrence of elevated temperatures inside the turbine, which cause, among other things, blade elongation, deformation, and cracks due to rapid temperature changes (thermal shock). A review of the literature has shown that blades are a subject to erosion resulting from operating conditions in which the blades strike water droplets formed from steam or from the injection of cooling condensate in the zone

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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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Jha, Devashish, and Saket Saurabh. "NACA2412 airfoil based method for design and aerodynamic analysis of small HAWT using modified BEM approach." Science and Technology for Energy Transition 78 (2023): 2. http://dx.doi.org/10.2516/stet/2022023.

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Efficient utilization of wind energy depends on careful selection and suitable design of Wind Turbine (WT) blades. Small scale Wind Turbines (SWT) normally operate in the low range of Angle of Attack (AoA). This makes the task even more difficult for designing and optimization of WT blades. This article deals with an airfoil based computational approach to design the blade for a standalone small scale Horizontal Axis Wind Turbine (HAWT). A procedure has been proposed to find the important parameters and analyze the performance characteristics for a three bladed HAWT operating under the wake ro

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Li, Qi, and Zhiying Gao. "Analysis of Influence of Pre-bend Blade Shape on Aeroelastic Characteristics of Wind Turbine Under Startup Condition." Journal of Physics: Conference Series 2569, no. 1 (2023): 012029. http://dx.doi.org/10.1088/1742-6596/2569/1/012029.

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Abstract In this paper, a 2 MW wind turbine in the laboratory is taken as the research object, and the blades with pre-bending capacities of 2, 3, 4, and 5 m are designed, respectively, to study the influence of different pre-bending capacities on the aerodynamic elasticity of wind turbine under unstable operating conditions. Based on the professional simulation software of wind turbine multi-body dynamics, the parametric model with aero-elastic-control coupling is established, and the simulation calculation of different pre-bending blades is carried out. The results show that the aerodynamic

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Sari, Dewi Puspita, Djoko Setyanto, Rexon Harris Simanjuntak, et al. "COMPARATIVE BLADES NUMBER HORIZONTAL AXIS WIND TURBINES IN PROFILE NACA 0012 USING CFD SIMULATION." Indonesian Journal of Engineering and Science 6, no. 2 (2025): 069–79. https://doi.org/10.51630/ijes.v6i2.170.

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This study explores the effect of blade count on the performance of low-scale horizontal axis wind turbines (HAWT) with NACA 0012 profiles using Computational Fluid Dynamics (CFD) methods. The results show that the turbine with three blades achieves the highest efficiency, with a power coefficient (Cp) of 0.54 at a Tip-Speed Ratio (TSR) of 7, while the four-blade turbine reaches a Cp of 0.48 at a TSR of 6. The mechanical power produced by the three-blade turbine is 1,040.81 W, 28% higher than that of the four-blade turbine (927.28 W). The progressive distribution of the pitch angle in the thre

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Tanasheva, Nazgul, Ainura Dyusembaeva, Nurgul Shuyushbayeva, et al. "Optimization of Magnus Wind Turbine Blades to Increase Operational Efficiency." CFD Letters 17, no. 6 (2024): 205–19. https://doi.org/10.37934/cfdl.17.6.205219.

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The problem of vortex disruption from the cylindrical blades of Magnus wind turbines is an urgent topic, which subsequently reduces the efficiency of the installation. Also, these cylindrical blades have a disadvantage in the form of low lift and high drag, as a result of which low operating efficiency is observed. Thus, the purpose of this work is a numerical study of the addition of a fixed blade to the cylindrical blades of a two-bladed wind turbine. Numerical studies were carried out for various angles of inclination of fixed blades from 0° to 60° using the Realizable k-ε turbulence model.

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Silvy, Dollorossa Boedi, Sundah Josephine, Kawulur Lecturer Meidy, and Bawano Franklin. "Design and Construction of Kinetic Turbine External Hinged Blade as A Picohydro Scale Power Plant." International Journal of Innovative Technology and Exploring Engineering (IJITEE) 12, no. 1 (2022): 43–47. https://doi.org/10.35940/ijitee.A9367.1212122.

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<strong>Abstract:</strong> The problem of energy shortage is still a global problem which is especially felt in developing countries whose residents live in villages, which still require the development of more efficient energy sources. Limited fossil fuels make water energy the best energy option. The problem of meeting the availability of electricity in rural areas by utilizing water energy as new and renewable energy is a long-term goal in this research. The current research on kinetic turbines is a combination of two types of waterwheels, which have a vertical axis (overshot and swell turb

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Adithya, K., R. Girimurugan, M. Vairavel, et al. "Structural and Thermal Research of Steam Turbine Blades by Finite Element Method." International Journal of Innovative Technology and Exploring Engineering 9, no. 5 (2020): 2275–78. http://dx.doi.org/10.35940/ijitee.e2495.039520.

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In most modern years, the dimensions and materials of the blades of steam turbines have increased by raising the power of steam turbines. In preference to the wide-ranging application of turbo machinery and constant improvement of steam turbine blade materials and design techniques, steam turbine blade design and material behavior study technology have turned out to be a significant following in the line of investigation field. The optimized design and material behavior are the most significant factors limiting the efficiency of steam turbines, which is associated with the operating effectiven

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Tonadi, Een. "ANALISIS PENGARUH JUMLAH SUDU TERHADAP EFISIENSI TURBIN PELTON DENGAN TEKANAN KONSTAN." Teknosia 1, no. 1 (2021): 36–42. http://dx.doi.org/10.33369/teknosia.v1i1.15390.

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One of the renewable energy sources that can be used for electricity generation is the Pelton turbine. The purpose of this study was to determine the effect of the number of blades on the efficiency of a Pelton turbine with constant pressure. This research was conducted at the Unihaz mechanical engineering laboratory by varying the number of blades, namely 9 blade turbines and 12 blades. Tests were carried out by giving load gradually to the turbine until the turbine rotor rotation stopped rotating. The results show that in the turbine test with blades 9 the maximum rotation achieved is 698.2

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Sucie, Elia, Dwi Anung Nindito, and Allan Restu Jaya. "Uji Eksperimental Pengaruh Konfigurasi Bilah Terhadap Performa Turbin Ventilator di Air." RekaRacana: Jurnal Teknil Sipil 8, no. 3 (2023): 144. http://dx.doi.org/10.26760/rekaracana.v8i3.144.

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ABSTRAKTeknologi turbin angin ventilator memiliki prinsip kerja yang hampir sama dengan turbin hidrokinetik yang berpenggerak aliran air. Density air yang lebih besar daripada angin menghasilkan power turbin yang lebih baik. Perbedaan density inilah yang menjadi alasan untuk mengembangkan turbin hidrokinetik dari turbin angin ventilator yang memiliki banyak bilah. Studi ini bertujuan untuk menguji performa turbin ventilator pada aliran air di saluran prismatik pada keadaan low head. Metode eksperimental digunakan untuk mengetahui performa turbin yang dihasilkan melalui perubahan distribusi kec

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Sharma, Chirag, Siddhant Kumar, Aanya Singh, et al. "Comprehensive Review on Leading Edge Turbine Blade Cooling Technologies." International Journal of Heat and Technology 39, no. 2 (2021): 403–16. http://dx.doi.org/10.18280/ijht.390209.

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Developments in the gas turbine technology have caused widespread usage of the Turbomachines for power generation. With increase in the power demand and a drop in the availability of fuel, usage of turbines with higher efficiencies has become imperative. This is only possible with an increase in the turbine inlet temperature (TIT) of the gas. However, the higher limit of TIT is governed by the metallurgical boundary conditions set by the material used to manufacture the turbine blades. Hence, turbine blade cooling helps in drastically controlling the blade temperature of the turbine and allows

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Molyakov, V. D., and B. A. Kunikeev. "Using the Similarity Theory in the Design of Gas Turbine Engines." Proceedings of Higher Educational Institutions. Маchine Building, no. 6 (735) (June 2021): 48–57. http://dx.doi.org/10.18698/0536-1044-2021-6-48-57.

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At present, in the promising development of gas turbine engines compared to at least the fourth generation products, there have been significant changes in the approaches to the design of engine. First of all, it is an increase in maximum values of temperature, gas pressure and circumferential flow speeds, an increase in power of the turbine stage, as well as improvement of the turbine manufacturing technology. All these factors lead to the fact that when designing the flow parts of the gas turbine, it is necessary at the fixed design flow rate of the working medium in the engine, i.e. at the

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Noor Zafirah Abu Bakar and Muhamad Hasbullah Padzillah. "Influence of Blade-Flow Interactions on Flow Behaviours and Blade Loading of an Automotive Mixed-Flow Turbine." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 105, no. 1 (2023): 131–53. http://dx.doi.org/10.37934/arfmts.105.1.131153.

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Mixed-flow turbine (MFT) is one type of turbines in automotive turbocharger. Multiple studies on turbine blades and flow interactions were done in this area but mainly focusing on structural responses and none on the fluid behaviours. The objectives of this paper are to compare and analyse the influence of blade-flow interactions on flow behaviours and blade loading at four MFT turbine operating conditions under steady state flow. Flow behaviours are indicated by appearances of secondary flows and blade loading is ratio of static pressure acting on turbine rotor blades over the total isentropi

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Irwansyah, Ridho, Warjito, Budiarso, Christopher Clement Rusli, and Sanjaya BS Nasution. "Analysing Hydraulic Efficiency of Water Vortex Pico-Hydro Turbine using Numerical Method." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 77, no. 2 (2020): 91–101. http://dx.doi.org/10.37934/arfmts.77.2.91101.

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To overcome the lack of rural electricity in Indonesia vortex pico-hydro turbines are used as an option solution. This is due to the ability of the vortex turbine to work in low head conditions effectively. This study is conducted with comparison of curved and straight blade to obtain a more optimum turbine performance. Two methods are carried out in this study, analytical and computational method. Analytical methods are used to determine blade geometry and its performance while computational methods are used to analyse internal flow of turbine. As a result, the study concludes that hydraulic

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Chen, Xiao Dong, Mei Ling Kuang, and Ya Ming Jiang. "Study of the Textile Composite Adaptive Blade of Small Wind Turbine." Advanced Materials Research 332-334 (September 2011): 828–32. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.828.

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This paper is mainly to design the small wind turbine blades to make the wind turbines have automatic braking ability. This study has two main aspects, including choosing the reinforced materials and designing the structure of the blades. According to the fiber hybrid principle, carbon fibers are employed in the main stress area of the blades and other area using glass fiber. At the same time, Aramid fibers are mixed in every area of the blade in order to enhance the tenacity of the blade. The other work is designing the structure of the blade with big main body and small abdomen which twists

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Abdul Alim, Muhammad Iyas. "Effect of Turbine Blades Transformation on Savonius Turbine Performance." Mekanika: Majalah Ilmiah Mekanika 21, no. 1 (2022): 26. http://dx.doi.org/10.20961/mekanika.v21i1.48619.

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<pre>The purpose of this study was to determine the effect of the transformation of savonius turbine blades using the Cp-TSR curve. The transformation referred to here is the change in the angular of the blade so that the area of the cross section of the blade moving downwind changes, by doing so the negative torque of the turbine obtained from the air flow is reduced. The specimen has 3 variations, namely, without transformation or conventional turbine and transformation of 5 and 10 degrees. With the reduction in the cross sectional area of the turbine blades, the authors hypothesize th

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