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Готові списки джерел за темами / Tidal Current; CFD; Electric Power / Статті в журналах

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Tidal Current; CFD; Electric Power.

Статті в журналах з теми "Tidal Current; CFD; Electric Power"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Agus, Margiantono, Nurhayati Titik, and Hasbullah Wahib. "ESTIMATION OF ELECTRICITY GENERATED FROM TIDAL ENERGY IN BEDONO VILLAGE OF DEMAK REGENCY." International Journal of Engineering Technologies and Management Research 4, no. 9 (2017): 13–17. https://doi.org/10.5281/zenodo.1006800.

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<strong><em>In some places in the village of Bedono Demak Regency there is a location with high tidal current velocity, the coordinates of the Location is 6 ° 55'29.0 "S 110 ° 29'11.4" E. In this study estimated the amount of electric power that can be generated from tidal currents in the village Bedono. Estimates are made by modeling the location and the Darrieus turbine using the CFD (Computating Fluid Dinamyc) Software. From the research that has been done to get the results of electric power that can be produced in the village Bedono highest at 14-16 times 3469.413W and lowest 39.002W at 2

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2

Margiantono, Agus, Titik Nurhayati, and Wahib Hasbullah. "ESTIMATION OF ELECTRICITY GENERATED FROM TIDAL ENERGY IN BEDONO VILLAGE OF DEMAK REGENCY." International Journal of Engineering Technologies and Management Research 4, no. 9 (2020): 13–17. http://dx.doi.org/10.29121/ijetmr.v4.i9.2017.95.

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Анотація:

In some places in the village of Bedono Demak Regency there is a location with high tidal current velocity, the coordinates of the Location is 6 ° 55'29.0 "S 110 ° 29'11.4" E. In this study estimated the amount of electric power that can be generated from tidal currents in the village Bedono. Estimates are made by modeling the location and the Darrieus turbine using the CFD (Computating Fluid Dinamyc) Software. From the research that has been done to get the results of electric power that can be produced in the village Bedono highest at 14-16 times 3469.413W and lowest 39.002W at 22-24 hours a

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3

Rehman, Zia Ur, Saeed Badshah, Amer Farhan Rafique, Mujahid Badshah, Sakhi Jan, and Muhammad Amjad. "Effect of a Support Tower on the Performance and Wake of a Tidal Current Turbine." Energies 14, no. 4 (2021): 1059. http://dx.doi.org/10.3390/en14041059.

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Tidal energy is one of the major sources of renewable energy. To accelerate the development of tidal energy, improved designs of Tidal Current Turbine (TCT) are necessary. The effect of tower on performance and wake of TCT is investigated using Computational Fluid Dynamics (CFD) simulations. Transient analysis with transient rotor stator frame change model and shear stress transport turbulence model are utilized in ANSYS CFX. An experimentally validated numerical model with full scale tidal turbine with a blockage ratio of 14.27% and Tip Speed Ratio (TSR) 4.87 is used to simulate the effect of

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4

Liu, Jing, Yong Ma, and Jia Xin Li. "Numerical Analysis of Hydrodynamic on Tidal Current Energy Extraction under Marine Platform." Applied Mechanics and Materials 687-691 (November 2014): 674–78. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.674.

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In this paper, different numerical methods on tidal current energy extraction of near-field and far-field hydrodynamic response are used to conduct simulation study. And the following aspects are used for simulation, including CFD model is used to establish three-dimensional numerical flume, layout plan of more tidal current energy electric generator with different spaces is designed, changes in near-field hydrodynamic are stimulated as well as the calculated results are compared and analyzed, in order to more clearly understand the influence of tidal current energy generator to the surroundin

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5

Loh, Ai Choong, Ooi Yongson, Lingenthiran Samylingam, Dirk Rilling, Chee Kuang Kok, and Gooi Mee Chen. "CFD analysis of Hydrodynamic Characteristics of Tidal Current Turbines." Engineering, Technology & Applied Science Research 15, no. 2 (2025): 22049–58. https://doi.org/10.48084/etasr.9293.

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Malaysia uses mostly fossil fuels for electricity generation. This study examines the hydrodynamic performance of tidal turbines, especially designed for three sites in East Malaysia: Sibu, Kota Belud, and Pulau Jambongan. The performance characteristics of these site-specific turbines were analyzed with the use of Computational Fluid Dynamics (CFD) and were validated with experimental benchmarks. The results indicate that a power coefficient greater than 0.4 is possible at Tip Speed Ratios (TSR) between 4 and 7, with the best performance recorded at TSR 5 for inflow velocities between 0.75 an

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6

ISHIGAKI, Mamoru, Tokiya MAKINO, Kotaro FUNAKOSHI, and Keita SASAKI. "FEASIBILITY VERIFICATION FOR TIDAL CURRENT POWER GENERATION USING BRIDGE PIER BY CFD FOR TIDAL CURRENT INCLUDING TURBULENCE." Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 76, no. 2 (2020): I_893—I_898. http://dx.doi.org/10.2208/jscejoe.76.2_i_893.

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7

Mehmood, Nasir, Zhang Liang, and Jawad Khan. "CFD Study of 2D Model of Diffuser for Harnessing Tidal Energy." Advanced Materials Research 482-484 (February 2012): 2270–74. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.2270.

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Diffuser augmented tidal turbines are getting enormous attention due to their immense potential to increase the generated power output. Researchers around the globe are investing considerable time and financial resources in this domain. Limited research results are available for diffuser augmented tidal turbines due to their emerging nature, large and costly research and development setup, startup cost and proprietary issues. Turbine enclosed in a diffuser is based on the principle that the generated power output by a tidal turbine is directly proportional to the cube of velocity of incoming f

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8

Gao, Yanjing, Hongwei Liu, Yonggang Lin, Yajing Gu, and Yiming Ni. "Hydrodynamic Analysis of Tidal Current Turbine under Water-Sediment Conditions." Journal of Marine Science and Engineering 10, no. 4 (2022): 515. http://dx.doi.org/10.3390/jmse10040515.

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The rivers connecting oceans generally carry sediment due to water and soil losses in China. Additionally, the maximum sediment concentration is 300 g/L, which is much higher than that of other countries. It is unknown whether seawater with sand particles will affect the power of tidal current turbine blades. It is therefore necessary to study the capture power of tidal current turbines in the water-sediment environment. In this study, the blade was divided into a number of transversal airfoil elements based on the blade element theory. The CFD-DPM model was employed to study the lift and drag

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9

Huang, Yuanfeng, Yuze Wang, Xian Cao, and Haifeng Wang. "Analysis and research on power distribution law of power generation based on HHT transform." E3S Web of Conferences 300 (2021): 01010. http://dx.doi.org/10.1051/e3sconf/202130001010.

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In recent years, tidal current power generation technology has achieved rapid development. On the basis of summarizing the characteristics of tidal current power generation, this paper comprehensively analyzes the distribution law of electric energy in tidal current power generation. Hilbert huang transform was applied to the trend of energy in power quality detection and analysis, the key can power on the trend of the measured data grouping processing, and carried out in accordance with the time period, such as day, month and year of HHT analysis, can get tide power distribution, can verify t

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10

Högblom, Olle, and Ronnie Andersson. "Multiphysics CFD Simulation for Design and Analysis of Thermoelectric Power Generation." Energies 13, no. 17 (2020): 4344. http://dx.doi.org/10.3390/en13174344.

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The multiphysics simulation methodology presented in this paper permits extension of computational fluid dynamics (CFD) simulations to account for electric power generation and its effect on the energy transport, the Seebeck voltage, the electrical currents in thermoelectric systems. The energy transport through Fourier, Peltier, Thomson and Joule mechanisms as a function of temperature and electrical current, and the electrical connection between thermoelectric modules, is modeled using subgrid CFD models which make the approach computational efficient and generic. This also provides a soluti

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11

Sun, C. K., X. Y. Wang, X. C. Zhang, X. R. Xu, and Y. H. Zhang. "Numerical Analysis on Hydrodynamical Performance of Twin Half-rotating Impeller Tidal Turbine." IOP Conference Series: Earth and Environmental Science 1121, no. 1 (2022): 012012. http://dx.doi.org/10.1088/1755-1315/1121/1/012012.

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Abstract To improve the utilization rate of tidal current energy, Twin Half-rotating Impeller Tidal Turbine(THITT), a new type of tidal turbine was proposed based on the half-rotating impeller(HRI) which was a new type lift-resistance compound impeller, and its virtual prototype was established. By changing the way the impeller rotated, two kinds of CFD models were established and taken into Xflow to calculate. The differences in their velocity fields and hydrodynamical performance were compared. The results demonstrated that THITT of different rotating directions both own good start-up perfor

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12

Narayanaswamy, Vedachalam, and Henrik Bang-Andreasen. "Challenges in Realizing Reliable Subsea Electric Power Grid for Tidal Energy Farms." Marine Technology Society Journal 47, no. 4 (2013): 80–93. http://dx.doi.org/10.4031/mtsj.47.4.17.

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AbstractThis paper addresses the major challenges involved in realizing a reliable, enclosure-based Subsea Electric Grid System (SEGS) for tidal energy farms. Tidal energy has the major advantages of predictability over other nonconventional energy sources and has no carbon emissions. Tidal energy policies have been the main driver for tidal energy project developments, and successful qualifications of high capacity marine current turbines have provided the confidence to establish tidal farms. Transmitting turbine-generated power to the shore power network by laying dedicated umbilical cables

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13

Guo, Bin, Da Zheng Wang, and Jun Wei Zhou. "Numerical Predictions and Verifications for Hydrodynamic Performance of Bidirectional Tidal Stream Turbine." Applied Mechanics and Materials 229-231 (November 2012): 2478–80. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.2478.

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In this paper, the tidal stream turbine blade is designed by using blade element momentum (BEM) theory. The bidirectional airfoil is created derived from NACA airfoil. Ansys-CFX is used to predict the hydrodynamic performance of this bidirectional airfoil, and it turns out that the bidirectional airfoil works well at both of the tidal current directions. A test turbine named rotor 2 is used, and a comparison is made between experimental results of the test turbine and numerical prediction results to prove the correctness of the numerical method. The power coefficient of bidirectional tidal str

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14

Mohamad Azim, Mohd Azmi, and Annuar Ahmad Zaki. "Computational Fluid Dynamics-based Simulation and Design of a Horizontal Tidal Turbine System." E3S Web of Conferences 437 (2023): 04005. http://dx.doi.org/10.1051/e3sconf/202343704005.

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Tidal phenomena, the rhythmic rise and fall of sea waters due to gravitational forces among celestial bodies like the Sun, Earth, and moon, offer a dependable source of renewable energy. Tidal energy, with its predictability and high energy density, is an attractive sustainable option. Tapping into this energy requires a specialized device, the tidal turbine, where the rotor plays a vital role. The rotor converts the kinetic energy of incoming tides into useful mechanical energy, evaluated through thrust, torque, and power efficiency. This study focuses on designing a horizontal tidal turbine

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15

Preziuso, Danielle, Gabriel García-Medina, Rebecca O’Neil, Zhaoqing Yang, and Taiping Wang. "Evaluating the Potential for Tidal Phase Diversity to Produce Smoother Power Profiles." Journal of Marine Science and Engineering 8, no. 4 (2020): 246. http://dx.doi.org/10.3390/jmse8040246.

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Although tidal energy conversion technologies are not yet commercially available or cost-competitive with other renewable energy technologies like wind turbines and solar panels, tides are a highly predictable resource. Tidal energy’s predictability indicates that the resource could introduce less volatility into balancing the electric grid when compared to other renewables, a fundamentally desirable attribute for the electric system. More specifically, tidal energy resources are unique in that they have the potential to produce relatively smoother power profiles over time through aggregation.

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16

Satrio, D., S. Musabikha, S. Junianto, et al. "The Advantages and Challenges of Carbon Fiber Reinforced Polymers for Tidal Current Turbine Systems - An Overview." IOP Conference Series: Earth and Environmental Science 1298, no. 1 (2024): 012029. http://dx.doi.org/10.1088/1755-1315/1298/1/012029.

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Abstract A significant step in reducing the effects of greenhouse gases is obtaining electric energy from renewable sources. Electricity from tidal currents using underwater turbines is one of the most promising and well-liked technologies. The turbine systems are the key element in the tidal current energy. They are built using hydrodynamic principles to extract the most power possible from tidal ocean currents and are designed to last for extended periods in a maritime environment. The performance of tidal turbines is also significantly influenced by their materials, i.e., carbon fiber reinf

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17

Zhao, Muyu, Ying Chen, and Jin Jiang. "Hydrodynamics and Wake Flow Analysis of a Floating Twin-Rotor Horizontal Axis Tidal Current Turbine in Roll Motion." Journal of Marine Science and Engineering 11, no. 8 (2023): 1615. http://dx.doi.org/10.3390/jmse11081615.

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The study of hydrodynamic characteristics of floating double-rotor horizontal axis tidal current turbines (FDHATTs) is of great significance for the development of tidal current energy. In this paper, the effect of roll motion on a FDHATT is investigated using the Computational Fluid Dynamics (CFD) method. The analysis was conducted in the CFD software STAR-CCM+ using the Reynolds-averaged Navier–Stokes method. The effects of different roll periods and tip speed ratios on the power coefficient and thrust coefficient of FDHATT were studied, and then the changes in the vorticity field and veloci

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18

Guo, Bin, Dazheng Wang, Xu Zhou, Weichao Shi, and Fengmei Jing. "Performance Evaluation of a Tidal Current Turbine with Bidirectional Symmetrical Foils." Water 12, no. 1 (2019): 22. http://dx.doi.org/10.3390/w12010022.

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As one might expect, tidal currents in terms of ebb and flood tides are approximately bidirectional. A Horizontal Axial Tidal Turbine (HATT) with unidirectional foils has to be able to face the current directions in order to maximize current energy harvesting. There are two regular solutions to keep a HATT always facing the direction of the flow, which are transferred from wind turbine applications. One is to yaw the turbine around the supporting structure with a yaw mechanism. The other is to reverse the blade pitch angle through 180° with a pitch-adjusting mechanism. The above solutions are

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19

Liu, Bohan, and Sunho Park. "Effect of Wavelength on Turbine Performances and Vortical Wake Flows for Various Submersion Depths." Journal of Marine Science and Engineering 12, no. 4 (2024): 560. http://dx.doi.org/10.3390/jmse12040560.

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When tidal turbines are deployed in water areas with significant waves, assessing the surface wave effects becomes imperative. Understanding the dynamic impact of wave–current conditions on the fluid dynamic performance of tidal turbines is crucial. This paper aims to establish a fundamental understanding of the influence of surface waves on tidal turbines. OpenFOAM, an open-source computational fluid dynamics (CFD) library platform, is utilized to predict the performance of current turbine under waves and currents. This research investigates the effects of two critical wave parameters, wave h

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20

Ma, Yong, Chao Hu, Yulong Li, Lei Li, Rui Deng, and Dapeng Jiang. "Hydrodynamic Performance Analysis of the Vertical Axis Twin-Rotor Tidal Current Turbine." Water 10, no. 11 (2018): 1694. http://dx.doi.org/10.3390/w10111694.

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The goal of this manuscript is to investigate the influence of relative distance between the twin rotors on the hydrodynamic performance of the vertical axis twin-rotor tidal current turbine. Computational fluid dynamics (CFD) simulations based on commercial software ANSYS-CFX have been performed to enhance the understanding of interactions between the twin-rotors. The interactions between the twin rotors are known to have increased the power output efficiency as a whole, and it is, therefore, of great significance to undertake deeper research. The simulation results are found to be consistent

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21

Li, Yamei, Zeyu Li, Andong Liu, Yutian Zhu, Shiming Wang, and Zhao Liu. "Research on the Blade Motion of a Bidirectional Energy-Generating Turbine under Integrated Wave and Tidal Current Action." Journal of Marine Science and Engineering 9, no. 8 (2021): 869. http://dx.doi.org/10.3390/jmse9080869.

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An integrated wave-tidal current power turbine is affected by both wave and tidal current forces, and its energy efficiency is closely related to the velocity and direction of the two forces. To improve the probability of the horizontal axis turbine reaching maximum energy efficiency under real-time changing sea conditions, we performed the following investigations in this study. Based on the actual application scenario of Lianyungang port, a time series prediction model of tidal current (velocity and flow direction) and wave (mean wave direction, mean wave period, and significant wave height)

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22

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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23

Zhang, Fuli, Wanqiang Zhu, Shuai Zu, et al. "Control Research on Active Pitch Control System for Horizontal-Axis Tidal-Current Turbine Generator." Energies 18, no. 4 (2025): 764. https://doi.org/10.3390/en18040764.

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Tidal energy, as a sustainable and environmentally friendly energy source, has attracted widespread attention in recent years. The technology of blade active pitch control is the key technology to cope with tidal velocity change and improve the stability and efficiency of horizontal-axis tidal generator sets. When solving the problem of speed variation, the core algorithm is the key to ensuring stable operation and improving the efficiency of power generation. When traditional PID is used to manage complex systems, the controller faces the challenge of complex parameter tuning and insufficient

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24

Liu, Bohan, and Sunho Park. "CFD Simulations of the Effects of Wave and Current on Power Performance of a Horizontal Axis Tidal Stream Turbine." Journal of Marine Science and Engineering 11, no. 2 (2023): 425. http://dx.doi.org/10.3390/jmse11020425.

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To ensure the long-term reliability of tidal stream turbines, waves and currents must be considered during the design phase. In this paper, a three-bladed horizontal axis turbine with a diameter of 0.9 m was used as the baseline model. OpenFOAM, an open-source computational fluid dynamics (CFD) library platform, was used to predict the performance of a horizontal axis tidal stream turbine (HATST) under waves and currents. A mesh dependency test was carried out to select the optimal mesh to capture the flow’s features. As a validation study, the power of the turbine under only the current was p

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25

Dong, Xiaohan, Zhao Wang, Pengfei Shen, Yurun Song, and Jin Yu. "Novel Design of Speed-increasing Compound Coupled Hydromechanical Transmission on Tidal Current Turbine for Power Generation." E3S Web of Conferences 162 (2020): 03001. http://dx.doi.org/10.1051/e3sconf/202016203001.

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A key topic discussed in the energy industry has long been how to steadily convert tidal energy into mechanical energy and then electrical power. Gear transmissions are widely used in mechanical systems for electrical power production, converting low-speed input rotation into high-speed output rotation to drive a generator rotor. However, to achieve a large speed ratio and stepless speed change, gear transmissions must be accompanied by complex structures and high-precision manufacturing technology. The application of gear transmissions in tidal energy power generation must therefore come at a

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26

Zhou, Junwei, Wenhui Yan, Lei Mei, Lixin Cong, and Weichao Shi. "Principal Parameters Analysis of the Double-Elastic-Constrained Flapping Hydrofoil for Tidal Current Energy Extraction." Journal of Marine Science and Engineering 10, no. 7 (2022): 855. http://dx.doi.org/10.3390/jmse10070855.

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Taking the rigid NACA0012 airfoil as the object, the key structural parameters of the spring–mass system that govern the dynamics of the double-elastic-constrained flapping hydrofoil are numerically studied in this paper. A two-dimensional numerical model, based on the CFD software FINE/Marine, is established to investigate the influence of the spring stiffness coefficient, frequency ratio, and damping coefficient on the motion and performance of the flapping hydrofoil. This study demonstrates that when the structural parameters are adequately adjusted, the power factor exceeding 1.0 has been

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27

Orhan, Kadir, Roberto Mayerle, Rangaswami Narayanan, and Wahyu Pandoe. "INVESTIGATION OF THE ENERGY POTENTIAL FROM TIDAL STREAM CURRENTS IN INDONESIA." Coastal Engineering Proceedings, no. 35 (June 23, 2017): 10. http://dx.doi.org/10.9753/icce.v35.management.10.

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In this paper, an advanced methodology developed for the assessment of tidal stream resources is applied to several straits between Indian Ocean and inner Indonesian seas. Due to the high current velocities up to 3-4 m/s, the straits are particularly promising for the efficient generation of electric power. Tidal stream power potentials are evaluated on the basis of calibrated and validated high-resolution, three-dimensional numerical models. It was found that the straits under investigation have tremendous potential for the development of renewable energy production. Suitable locations for th

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28

Mr., K. Prakash R.Sreeju S.Vijaychandran A.R.Sridharan. "OPTIMISATION OF WIND TURBINE WITH DIFFUSER USING CFD TOOL." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 1 (2017): 292–96. https://doi.org/10.5281/zenodo.250381.

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A wind turbine or wind power plant is a device that converts kinetic energy from the wind into electric current. Mechanical energy is simply created when the wind turbine blades spin and a generator is turned, thus producing electricity. Diffuser can increase turbine power output primarily by increasing mass flow rate through the blades because of controlled diffusion of the turbine wake which which lowers the exit plane pressure considerably below atmospheric, and secondarily by reducing blade tip losses. The principle object of this project is to fully assess comparison of angular velocity a

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29

Kim, Bum Suk. "Investigating the Power-Performance Prediction on an H- and Helical-type Tidal Current Turbine Using CFD Method." Transactions of the Korean Society of Mechanical Engineers B 39, no. 8 (2015): 653–60. http://dx.doi.org/10.3795/ksme-b.2015.39.8.653.

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30

Yoshida, Shigeo, Haruto Fuchiwaki, and Koji Matsuoka. "Development of Individual Rotor Mutual Induction (IRMI) Method for Coaxial Counter-Rotating Rotor." Applied Sciences 14, no. 11 (2024): 4782. http://dx.doi.org/10.3390/app14114782.

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A coaxial counter-rotating rotor (CCRR), which has two rotors rotating in the opposite directions on the same axis, is seen as a promising technology for low-cost floating tidal current/ocean current power generation using single-point mooring, as the torques of the front and rear rotors are cancelled. In the evaluation and design of such turbines, there is a need for an accurate analysis method with a low computational load that considers the strong mutual induction between the two rotors placed close together. An individual rotor mutual induction (IRMI) method was developed in this study, ai

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31

Zhang, Wanchao, Yujie Zhou, Kai Wang, and Xiaoguo Zhou. "Forced Motion CFD Simulation and Load Refinement Evaluation of Floating Vertical-Axis Tidal Current Turbines." Polish Maritime Research 27, no. 3 (2020): 40–49. http://dx.doi.org/10.2478/pomr-2020-0045.

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AbstractSimulation of the hydrodynamic performance of a floating current turbine in a combined wave and flow environment is important. In this paper, ANSYS-CFX software is used to analyse the hydrodynamic performance of a vertical-axis turbine with various influence factors such as tip speed ratio, pitching frequency and amplitude. Time-varying curves for thrust and lateral forces are fitted with the least squares method; the added mass and damping coefficients are refined to analyse the influence of the former factors. The simulation results demonstrate that, compared with non-pitching and ro

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32

Wang, Xiao Hang, Li Zhang, and Liang Zhang. "A Simplified Design Method of Horizontal Axis Tidal Energy Turbine Blade." Applied Mechanics and Materials 525 (February 2014): 240–46. http://dx.doi.org/10.4028/www.scientific.net/amm.525.240.

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Horizontal axis tidal turbines (HATTs) are efficient in converting tidal energy. Improvements in the design of the HATTs require a thorough understanding of the energy conversion process. In this paper, the design of a HATT with two blades is conducted by blade element momentum theory (BEM). In this simplified method, the eddy current induced by the rotors hub and tips were considered while ignoring the blade elements drag items. Based on the assumption of maximum power of blade elements, the distribution of blade elements flow angle and the chord length coefficient along the radius can be ass

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Badshah, Mujahid, Saeed Badshah, and Kushsairy Kadir. "Fluid Structure Interaction Modelling of Tidal Turbine Performance and Structural Loads in a Velocity Shear Environment." Energies 11, no. 7 (2018): 1837. http://dx.doi.org/10.3390/en11071837.

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Tidal Current Turbine (TCT) blades are highly flexible and undergo considerable deflection due to fluid interactions. Unlike Computational Fluid Dynamic (CFD) models Fluid Structure Interaction (FSI) models are able to model this hydroelastic behavior. In this work a coupled modular FSI approach was adopted to develop an FSI model for the performance evaluation and structural load characterization of a TCT under uniform and profiled flow. Results indicate that for a uniform flow case the FSI model predicted the turbine power coefficient CP with an error of 4.8% when compared with experimental

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Shyu, Lih Shyng. "Renewable Energy Evaluation and Plan in Matsu Areas." Advanced Materials Research 962-965 (June 2014): 1858–61. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.1858.

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This project evaluates, gathers statistics, and investigates current situations of renewable energy (including wind power, solar power, and ocean energy) in Matsu areas for environment sustainable use. The areas have abundant wind power potential, and the average wind speeds over 4m/s fittable for wind power system. Matsu areas have abundant solar energy (yearly average Solar Radiation >3,600 MJ/m2) suitable for the development of solar water heaters and solar power. For the ocean energy a swamp in Nangan forms a tidal reservoir can be applied with yearly generation time about 4,000 hours,

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Metheny, Boris, Rosyida Permatasari, and Muhammad Sjahrul Annas. "DESIGN MODELING OF SAVONIUS-DARRIEUS TURBINE FOR SEA CURRENT ELECTRIC POWER PLANT." SINERGI 25, no. 1 (2020): 27. http://dx.doi.org/10.22441/sinergi.2021.1.004.

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Turbines convert the kinetic energy of ocean currents into electrical energy produced by the sea current electric power plant. This study aims to design a power generator turbine modeling that is carried out using the Computational Fluid Dynamic (CFD) approach by comparing the geometric performance based on the angle of attack and the Tip Speed Ratio (TSR) value of the Savonius-Darrieus Turbine. Having done several trials and errors during collecting the data, the value of the TSR 1.427; 2.853; 4.28; 5; and 5.7 is proposed. Here, the NACA 0018 series has been adopted on the current design of S

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Ibrahim, Mahmoud I., and María José Legaz. "Hydrokinetic Power Potential in Spanish Coasts Using a Novel Turbine Design." Journal of Marine Science and Engineering 11, no. 5 (2023): 942. http://dx.doi.org/10.3390/jmse11050942.

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Nowadays, there is great concern about obtaining clean energy. Governments around the world are boosting renewable energy resources. Oceans provide abundant renewable energy resources, including tidal, wave, and current energy. It seems that ocean currents are one of the most promising ways to obtain energy from the oceans. The goal of this paper is to assess the hydrokinetic power potential in three different areas of the Spanish coast using a novel turbine design, named the fin-ring turbine. The patented turbine was previously power tested in 2014 in the Gulf of Mexico and numerically valida

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Effendi, Asnal, Arfita Yuana Dewi, Siti Amalia, and Dedy Alfianto. "Studi Intensitas Cahaya Matahari Dengan Data Logger Untuk Efektiv Penempatan Panel Surya." Journal of Electrical Power Control and Automation (JEPCA) 4, no. 1 (2021): 6. http://dx.doi.org/10.33087/jepca.v4i1.44.

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Renewable energy is energy produced from natural sources, such as light, wind, rain, tidal currents, and geothermal, which is renewable or can naturally reappear after being used. In this study, a study of the effectiveness and efficiency of power plants in certain locations. For this reason, it is necessary to design a tool in the form of a data logger that is used to collect parameter data such as light intensity, electric voltage, electric current, power, temperature, humidity, wind speed, and others. The placement of the data logger will help in the basic test of the feasibility of using e

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Im, Heejeon, Taegyu Hwang, and Bumsuk Kim. "Duct and blade design for small-scale floating tidal current turbine development and CFD-based analysis of power performance." Journal of Mechanical Science and Technology 34, no. 4 (2020): 1591–602. http://dx.doi.org/10.1007/s12206-020-0321-2.

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Lombardi, Nicolo’, Stephanie Ordonez-Sanchez, Stefania Zanforlin, and Cameron Johnstone. "A Hybrid BEM-CFD Virtual Blade Model to Predict Interactions between Tidal Stream Turbines under Wave Conditions." Journal of Marine Science and Engineering 8, no. 12 (2020): 969. http://dx.doi.org/10.3390/jmse8120969.

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Tidal turbine array optimization is crucial for the further development of the marine sector. It has already been observed that tidal turbines within an array can be heavily affected by excessive aerodynamic interference, thus leading to performance deterioration. Small-scale experimental tests aimed at understanding the physical mechanisms of interaction and identifying optimal distances between machines can be found in the literature. However, often, the relatively narrow channels of laboratories imply high blockage ratios, which could affect the results, making them unreliable if extrapolat

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Ortega, Arturo, Joseph Praful Tomy, Jonathan Shek, Stephane Paboeuf, and David Ingram. "An Inter-Comparison of Dynamic, Fully Coupled, Electro-Mechanical, Models of Tidal Turbines." Energies 13, no. 20 (2020): 5389. http://dx.doi.org/10.3390/en13205389.

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Production of electricity using hydrokinetic tidal turbines has many challenges that must be overcome to ensure reliable, economic and practical solutions. Kinetic energy from flowing water is converted to electricity by a system comprising diverse mechanical and electrical components from the rotor blades up to the electricity grid. To date these have often been modelled using simulations of independent systems, lacking bi-directional, real-time, coupling. This approach leads to critical effects being missed. Turbulence in the flow, results in large velocity fluctuations around the blades, ca

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Yan, Yu-Ting, Shi-Ming Xu, Cong Liu, et al. "Research on the Hydrodynamic Performance of a Horizontal-Axis Tidal Current Turbine with Symmetrical Airfoil Blades Based on Swept-Back Models." Journal of Marine Science and Engineering 10, no. 10 (2022): 1515. http://dx.doi.org/10.3390/jmse10101515.

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For the design of a horizontal-axis tidal current turbine with adaptive variable-pitch blades, both numerical simulations and physical model experiments were used to study the hydrodynamic performance of symmetrical airfoil blades based on backward swept models. According to the lift–drag ratio of symmetrical airfoils, variable airfoil sections were selected for each part of the blade in the spanwise direction. Then, three kinds of blades were designed by using different swept-back models from wind turbines. A rotation model with a multi-reference frame was employed to conduct a three-dimensio

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Hotěk, P., and L. Fiala. "Self-heating potential of metashale mortar doped with carbon fiber dust." Journal of Physics: Conference Series 2911, no. 1 (2024): 012010. https://doi.org/10.1088/1742-6596/2911/1/012010.

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Abstract Geopolymers are a very promising candidate to replace cementitious composites due to their significantly lower environmental impact and their potential for application in the field of multifunctional materials. New functional properties such as self-heating thus increase the possibility for geopolymers to be used in so-called smart structures. The ability to self-heat is directly affected by the electrical properties of the composite The key factor are the electrically conductive pathways within the material, which form an electrically conductive network through which electric current

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A. Amiri, Hoseyn, Rouzbeh Shafaghat, Rezvan Alamian, Seyed Mohamad Taheri, and Mostafa Safdari Shadloo. "Study of horizontal axis tidal turbine performance and investigation on the optimum fixed pitch angle using CFD." International Journal of Numerical Methods for Heat & Fluid Flow 30, no. 1 (2019): 206–27. http://dx.doi.org/10.1108/hff-05-2019-0447.

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Purpose The purpose of this paper is to design, investigate and optimize a horizontal axis tidal turbine (HATT) using computer-aided numerical simulation and computational fluid dynamics (CFD). This is the first step of research and development (R&D) for implementation in the Persian Gulf condition. To do so, suitable locations are reviewed. Then, the optimization is focused on determining the optimum fixed pitch angle (β) of a three-bladed HATT based on the widespread multiple reference frame (MRF) technique to calculate power and thrust coefficients at different operational rotating spee

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Mohammed, Muhyiddin, Shamsul Sarip, Sa’ardin Abdul Aziz, Wan Azani Mustafa, and Ahmed Ali Ajmi. "Savonius Hydrokinetic Turbine: A Bibliometric Analysis." Journal of Advanced Research in Applied Mechanics 133, no. 1 (2025): 36–51. https://doi.org/10.37934/aram.2.1.3651.

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The Savonius Hydrokinetic Turbine (SHT) exhibits promise as a viable option for a power extraction apparatus capable of harnessing energy from diverse water flow situations, such as tidal, river, wave, and open channel settings. The SHT is considered a simple and straightforward design, including convenient manufacturing and installation processes. This investigation’s primary purpose is to ascertain the current trends as well as upcoming areas of research pertaining to the SHT, thereby enhancing its potential for environmental sustainability. Through bibliometric studies, this article discuss

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Utama, I. Ketut Aria Pria, Dendy Satrio, Mukhtasor Mukhtasor, et al. "Numerical simulation of foil with leading-edge tubercle for vertical-axis tidal-current turbine." Journal of Mechanical Engineering and Sciences 14, no. 3 (2020): 6982–92. http://dx.doi.org/10.15282/jmes.14.3.2020.02.0547.

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The main disadvantage of the vertical-axis turbine is its low coefficient of performance. The purpose of this work was to propose a method to improve this performance by investigating the hydrodynamic forces and the flow-field of a foil that was modified with a sinusoidal leading-edge tubercle. NACA 63(4)021 was chosen as the original foil since it has a symmetrical profile that is suitable for use on a vertical-axis tidal-current turbine. The study was conducted using a numerical simulation method with ANSYS-CFX Computational Fluid Dynamics (CFD) code to solve the incompressible Reynolds-Aver

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Chen, Ying, and Xiang Jie Chen. "Analysis for TCSC Steady-State Characteristics." Advanced Materials Research 179-180 (January 2011): 1435–40. http://dx.doi.org/10.4028/www.scientific.net/amr.179-180.1435.

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When the TCSC steady-state operation, the thyristor turn-on and turn-off time is definite, the changing for TCSC electric capacity voltage and thyristor electric current is with the periodicity and symmetry.Thyristor controlled series compensation technology is fixed series compensation technology foundation, which is meet the needs for adaptation electrical power system operation control developing. With changes the triggering angle for thyristor suitably, then can realize the TCSC equivalent reactance fast, continuously and adjusts smoothly, provides the controllable series compensation for

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Zhang, Chao, and Matthew Janeway. "Optimization of Turbine Blade Aerodynamic Designs Using CFD and Neural Network Models." International Journal of Turbomachinery, Propulsion and Power 7, no. 3 (2022): 20. http://dx.doi.org/10.3390/ijtpp7030020.

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Optimization methods have been widely applied to the aerodynamic design of gas turbine blades. While applying optimization to high-fidelity computational fluid dynamics (CFD) simulations has proven capable of improving engineering design performance, a challenge has been overcoming the prolonged run-time due to the computationally expensive CFD runs. Reduced-order models and, more recently, machine learning methods have been increasingly used in gas turbine studies to predict performance metrics and operational characteristics, model turbulence, and optimize designs. The application of machine

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Saidi, Lotfi, Mohamed Benbouzid, Demba Diallo, Yassine Amirat, Elhoussin Elbouchikhi, and Tianzhen Wang. "Higher-Order Spectra Analysis-Based Diagnosis Method of Blades Biofouling in a PMSG Driven Tidal Stream Turbine." Energies 13, no. 11 (2020): 2888. http://dx.doi.org/10.3390/en13112888.

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Most electrical machines and drive signals are non-Gaussian and are highly nonlinear in nature. A useful set of techniques to examine such signals relies on higher-order statistics (HOS) spectral representations. They describe statistical dependencies of frequency components that are neglected by traditional spectral measures, namely the power spectrum (PS). One of the most used HOS is the bispectrum where examining higher-order correlations should provide further details and information about the conditions of electric machines and drives. In this context, the stator currents of electric mach

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Korkut, Talha Batuhan, Aytaç Gören, and Ahmed Rachid. "Numerical and Experimental Study of a PVT Water System under Daily Weather Conditions." Energies 15, no. 18 (2022): 6538. http://dx.doi.org/10.3390/en15186538.

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Worldwide need for renewable energy sources increases significantly with the drastic negative greenhouse effects of climate change. This study considers a water-cooled hybrid thermo-electric panel (PV/T) which contributes to better harvesting of solar energy. A numerical CFD model was developed for power generation of a standard PV panel as well as for a water-based PV/T system laminated with polymer matrix composite (PMC) materials, and user-defined functions (UDFs) were developed and integrated with the CFD model to implement exact boundary conditions. Experimentation under daily weather con

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Basha, J. Sadhik, Tahereh Jafary, Ranjit Vasudevan, et al. "Potential of Utilization of Renewable Energy Technologies in Gulf Countries." Sustainability 13, no. 18 (2021): 10261. http://dx.doi.org/10.3390/su131810261.

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This critical review report highlights the enormous potentiality and availability of renewable energy sources in the Gulf region. The earth suffers from extreme air pollution, climate changes, and extreme problems due to the enormous usage of underground carbon resources applications materialized in industrial, transport, and domestic sectors. The countries under Gulf Cooperation Council, i.e., Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates, mainly explore those underground carbon resources for crude oil extraction and natural gas production. As a nonrenewable resourc

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