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Автор: Grafiati
Опубліковано: 11 вересня 2023

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Статті в журналах з теми "HORIZONTAL AXIS HYDROKINETIC"

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Rahuna, Daif, Erwandi, Afian Kasharjanto, Eko Marta Suyanto, and Cahyadi Sugeng Jati Mintarso. "Experimental Study on Hydrodynamic Aspects of Turbine which Convert Hydrokinetic and Potential Coastal Wave Energy." IOP Conference Series: Earth and Environmental Science 1166, no. 1 (May 1, 2023): 012021. http://dx.doi.org/10.1088/1755-1315/1166/1/012021.

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Abstract Currently, the exploration of ocean renewable energy sources was mostly carried out to obtain optimal results and low cost. The waves that arrive on the beach consist of both potential energy where the water surface moves up and down and hydrokinetic energy where the volume of water comes and goes into the beach sand. They had the potential to be converted to electricity. This paper explained the study of the hydrodynamic aspects of turbines that convert hydrokinetic and potential coastal wave energy. The vertical axis darrieus turbine was modified to catch both energies. It could convert energies from hydrokinetics and the potential of waves simultaneously, whereas a vertical axis turbine with 6 horizontal blades and 3 vertical blades in a shaft. Testing was done at the testing Tank, Hydrodynamic Technology Research Center, National Research and Innovation Agency. The hydrodynamic tests were with 3 turbine variations, wave variations, and current velocity. The test results, vertical axis turbines with horizontal blades could receive wave energy, due to the orbital motion of water particles and vertical blades were very effective in receiving current energy so that turbines with 2 types of vertical and horizontal blades could convert wave and current energy.
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2

Contreras, L. T., Y. U. López, and S. Laín. "CFD Simulation of a Horizontal Axis Hydrokinetic Turbine." Renewable Energy and Power Quality Journal 1, no. 15 (April 2017): 512–17. http://dx.doi.org/10.24084/repqj15.376.

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3

Cardona-Mancilla, Cristian, Jorge Sierra del Río, Edwin Chica-Arrieta, and Diego Hincapié-Zuluaga. "Turbinas hidrocinéticas de eje horizontal: una revisión de la literatura." Tecnología y ciencias del agua 09, no. 3 (June 1, 2018): 180–97. http://dx.doi.org/10.24850/j-tyca-2018-03-08.

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4

Wang, Xiu, Zhou-Ping Hu, Yan Yan, Junxian Pei, and Wen-Quan Wang. "Acoustic characteristics of a horizontal axis micro hydrokinetic turbine." Ocean Engineering 259 (September 2022): 111854. http://dx.doi.org/10.1016/j.oceaneng.2022.111854.

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5

Zahedi Nejad, A., M. Rad, and M. Khayat. "Conceptual duct shape design for horizontal-axis hydrokinetic turbines." Scientia Iranica 23, no. 5 (October 1, 2016): 2113–24. http://dx.doi.org/10.24200/sci.2016.3942.

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6

Abutunis, Abdulaziz, and Venkata Gireesh Menta. "Comprehensive Parametric Study of Blockage Effect on the Performance of Horizontal Axis Hydrokinetic Turbines." Energies 15, no. 7 (April 1, 2022): 2585. http://dx.doi.org/10.3390/en15072585.

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Анотація:
When a hydrokinetic turbine operates in a confined flow, blockage effects are introduced, altering the flow at and downstream of the rotor. Blockage effects have a significant effect on the loading and performance of turbines. As a result, understanding them is critical for hydrokinetic turbine design and performance prediction. The current study examines the main and interaction effects of solidity (σ), tip speed ratio (TSR), blockage ratio (ε), and pitch angle (θ) on how the blockage influences the performance (CP) of a three-bladed, untwisted, untapered horizontal axis hydrokinetic turbine. The investigation is based on validated 3D computational fluid dynamics (CFD), design of experiments (DOE), and the analysis of variance (ANOVA) approaches. A total number of 36 CFD models were developed and meshed. A total of 108 CFD cases were performed as part of the analysis. Results indicated that the effect of varying θ was only noticeable at the high TSR. Additionally, the rate of increment of CP with respect to ε was found proportional to both TSR and σ. The power and thrust coefficients were affected the most by σ, followed by ε, TSR, and then θ.
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7

Menéndez Arán, David, and Ángel Menéndez. "Surrogate-Based Optimization of Horizontal Axis Hydrokinetic Turbine Rotor Blades." Energies 14, no. 13 (July 5, 2021): 4045. http://dx.doi.org/10.3390/en14134045.

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A design method was developed for automated, systematic design of hydrokinetic turbine rotor blades. The method coupled a Computational Fluid Dynamics (CFD) solver to estimate the power output of a given turbine with a surrogate-based constrained optimization method. This allowed the characterization of the design space while minimizing the number of analyzed blade geometries and the associated computational effort. An initial blade geometry developed using a lifting line optimization method was selected as the base geometry to generate a turbine blade family by multiplying a series of geometric parameters with corresponding linear functions. A performance database was constructed for the turbine blade family with the CFD solver and used to build the surrogate function. The linear functions were then incorporated into a constrained nonlinear optimization algorithm to solve for the blade geometry with the highest efficiency. A constraint on the minimum pressure on the blade could be set to prevent cavitation inception.
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8

Nachtane, M., M. Tarfaoui, A. El Moumen, D. Saifaoui, and H. Benyahia. "Design and Hydrodynamic Performance of a Horizontal Axis Hydrokinetic Turbine." International Journal of Automotive and Mechanical Engineering 16, no. 2 (July 4, 2019): 6453–69. http://dx.doi.org/10.15282/ijame.16.2.2019.1.0488.

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Marine energy is gaining more and more interest in recent years and, in comparison to fossil energy, is very attractive due to predictable energy output, renewable and sustainable, the Horizontal Axis Hydrokinetic Turbine (HAHT) is one of the most innovative energy systems that allow transforms the kinetic energy into electricity. This work presents a new series of hydrofoil sections, named here NTSXX20, and was designed to work at different turbine functioning requirement. These hydrofoils have excellent hydrodynamic characteristics at the operating Reynolds number. The design of the turbine has been done utilising XFLR5 code and QBlade which is a Blade-Element Momentum solver with a blade design feature. Tidal current turbine has been able to capture about 50% from TSR range of 5 to 9 with maximum CPower of 51 % at TSR=6,5. The hydrodynamics performance for the CFD cases was presented and was employed to explain the complete response of the turbine.
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Abutunis, A., G. Taylor, M. Fal, and K. Chandrashekhara. "Experimental evaluation of coaxial horizontal axis hydrokinetic composite turbine system." Renewable Energy 157 (September 2020): 232–45. http://dx.doi.org/10.1016/j.renene.2020.05.010.

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Shinomiya, L. D., J. R. P. Vaz, A. L. A. Mesquita, T. F. De Oliveira, A. C. P. Brasil Jr, and P. A. S. F. Silva. "AN APPROACH FOR THE OPTIMUM HYDRODYNAMIC DESIGN OF HYDROKINETIC TURBINE BLADES." Revista de Engenharia Térmica 14, no. 2 (December 31, 2015): 43. http://dx.doi.org/10.5380/reterm.v14i2.62131.

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Анотація:
This work aims to develop a simple and efficient mathematical model applied to optimization of horizontal-axis hydrokinetic turbine blades considering the cavitation effect. The approach uses the pressure minimum coefficient as a criterion for the cavitation limit on the flow around the hydrokinetic blades. The methodology corrects the chord and twist angle at each blade section by a modification on the local thrust coefficient in order to takes into account the cavitation on the rotor shape. The optimization is based on the Blade Element Theory (BET), which is a well known method applied to design and performance analysis of wind and hydrokinetic turbines, which usually present good agreement with experimental data. The results are compared with data obtained from hydrokinetic turbines designed by the classical Glauert's optimization. The present method yields good behavior, and can be used as an alternative tool in efficient hydrokinetic turbine designs.
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Дисертації з теми "HORIZONTAL AXIS HYDROKINETIC"

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PATEL, GOVIND. "PERFORMANCE ANALYSIS AND OPTIMIZATION OF HORIZONTAL AXIS HYDROKINETIC TURBINE BLADE." Thesis, 2016. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16018.

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Анотація:
Hydrokinetic energy is the kinetic energy of a water mass due to its movement. The faster the water flow, the larger hydrokinetic energy it contains. Hydrokinetic turbines are used to covert this kinetic energy to electricity generation. Since the performance of these turbines played an important role in viability of hydrokinetic power generation projects hence different design parameters are studied to enhance its power generation capacity and performance. In this project Chord Length and hence Solidity of hydrokinetic turbines at constant blade pitch angle and TSR is analyzed. The values of TSR taken is 3.36 at rotation speed of 90 rpm, the Chord Length taken is 0.12, 0.15 and 0.20 mt at blade pitch angle of 10 degree and flow speed 2.8 m/s. The design of turbine blade is done with the help of Airfoil-Tool, Pro-E software and meshing is done at Hypermesh. The analysis is done with the help of ANSYS FLUENT. After analysis we found that with increase in the chord length (or solidity) of turbine blade the thrust, torque and power generated increases and because of this coefficient of performance is also increases.
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Книги з теми "HORIZONTAL AXIS HYDROKINETIC"

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Maniaci, David C. Investigating the influence of the added mass effect to marine hydrokinetic horizontal-axis turbines using a general dynamic wake wind turbine code. Golden, CO: National Renewable Energy Laboratory, U.S. Dept. of Energy, Office of Energy Efficiency and Renewable Energy, 2011.

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Maniaci, David C. Investigating the influence of the added mass effect to marine hydrokinetic horizontal-axis turbines using a general dynamic wake wind turbine code: Preprint. Golden, CO]: National Renewable Energy Laboratory, 2012.

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Частини книг з теми "HORIZONTAL AXIS HYDROKINETIC"

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Vaz, Jerson R. P., and David Wood. "Blade element analysis and design of horizontal-axis turbines." In Small Wind and Hydrokinetic Turbines, 157–91. Institution of Engineering and Technology, 2021. http://dx.doi.org/10.1049/pbpo169e_ch7.

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2

Evans, Samuel Petersen, and Philip Douglas Clausen. "Aeroelastic modelling of a 5-kW horizontal axis wind turbine." In Small Wind and Hydrokinetic Turbines, 237–64. Institution of Engineering and Technology, 2021. http://dx.doi.org/10.1049/pbpo169e_ch10.

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3

Bradney, David Robert, Samuel Petersen Evans, Mariana Salles Pereira da Costa, and Philip Douglas Clausen. "Field testing of a 5-kW horizontal-axis wind turbine." In Small Wind and Hydrokinetic Turbines, 213–35. Institution of Engineering and Technology, 2021. http://dx.doi.org/10.1049/pbpo169e_ch9.

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4

Amiri Tavasoli, Sepideh, Seyed Jalal Hemmati, Saeed Niazi, and Ali Jalali. "The Effects of Blade Configurations on Performance of a Tidal Vertical Axis Turbine." In Boundary Layer Flows - Modelling, Computation, and Applications of Laminar, Turbulent Incompressible and Compressible Flows [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.105645.

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Анотація:
Hydrokinetic energy contains the major uncontrolled source of renewable marine energy. The highest level of converter technology readiness offered in the last three decades is TRL8–9, which is related to the first-generation horizontal axis converters. In low-depth calm waters, one of the best options to harvest tidal energy is vertical axis turbines. About 16% of the conceptual designs presented in the last 30 years apply this type of converter, which does not have a high level of technological readiness. In this study, a laboratory-designed vertical axis turbine has been introduced in which the effects of the number of blades, the blade profile, and attack angle on the performance of the turbine were analyzed. A 3D incompressible viscous turbulent computational finite volume approach is applied, with the spatial second-order and temporal first-order accuracies. The turbulent model k-ω SST was used to obtain the flow inside the turbine. Rotors include two, three, and six blades with three different profiles, including NACA2421, NACA16021, and NACA0020. Computational results reveal that the turbine with three blades and an angle of attack of +8 using the NACA2421 profile has a maximum generation capacity of about 4 kW, with a strength factor of 0.4 and a power factor of about 20%. The capacity, however, was lower for a higher number of blades.
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Тези доповідей конференцій з теми "HORIZONTAL AXIS HYDROKINETIC"

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Rares-Andrei, Chihaia, Bunea Florentina, Oprina Gabriela, and El-Leathey Lucia-Andreea. "Power prediction method applicable to horizontal axis hydrokinetic turbines." In 2017 International Conference on Energy and Environment (CIEM). IEEE, 2017. http://dx.doi.org/10.1109/ciem.2017.8120825.

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Shahsavarifard, Mohammad, and Eric Louis Bibeau. "Yaw operation of a shrouded horizontal axis hydrokinetic turbine." In OCEANS 2015 - Genova. IEEE, 2015. http://dx.doi.org/10.1109/oceans-genova.2015.7271379.

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3

Motley, Michael R., and Ramona B. Barber. "Passive Pitch Control of Horizontal Axis Marine Hydrokinetic Turbine Blades." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-24150.

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Анотація:
As the need for clean and renewable energy becomes greater, alternative energy technologies are becoming more and more prevalent. To that end, there has been a recent increase in research on marine hydrokinetic turbines to assess their potential as a reliable source of energy production and to expedite their implementation. These turbines are typically constructed from fiber reinforced composites and are subject to large, dynamic fluid forces. One of the benefits of composite materials is that the bend-twist deformation behavior can be hydroelastically tailored such that the blades are able to passively change their pitch to adapt to the surrounding flow, creating a nearly instantaneous control mechanism that can improve system performance over the expected range of operating conditions. These improvements include increasing energy capture, reducing instabilities, and improving structural performance. Practical constraints, however, lead to limitations in the scope of these performance enhancements and create tradeoffs between various benefits that can be achieved. This paper presents a numerical investigation into the capability of passive pitch control and combined active/passive pitch control to modify the performance of horizontal axis marine turbines with proper consideration of practical restrictions.
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4

Marinic-Kragic, I., and D. Vucina. "Hydrokinetic Horizontal-axis Savonius Turbine Performance Near the Free Surface." In 10th Conference on Computational Methods in Marine Engineering. CIMNE, 2023. http://dx.doi.org/10.23967/marine.2023.061.

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5

Gish, L. A., A. Carandang, and G. Hawbaker. "Numerical optimization of pre-swirl stators for horizontal axis hydrokinetic turbines." In OCEANS 2016 MTS/IEEE Monterey. IEEE, 2016. http://dx.doi.org/10.1109/oceans.2016.7761149.

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6

Pournazeri, S., P. Aghsaee, R. Mantilla, and C. Markfort. "Optimization and initial testing of a model-scale horizontal axis hydrokinetic turbine." In The International Conference On Fluvial Hydraulics (River Flow 2016). Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2016. http://dx.doi.org/10.1201/9781315644479-334.

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7

Wee, Tan Kheng, Martin Anyi, and Ngu Sze Song. "Small-Scale Horizontal Axis Hydrokinetic Turbine as Alternative for Remote Community Electrification in Sarawak." In 2020 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE). IEEE, 2020. http://dx.doi.org/10.1109/icsgce49177.2020.9275631.

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8

Jonson, Michael, John Fahnline, Erick Johnson, Matthew Barone, and Arnold Fontaine. "Influence of Blade Solidity on Marine Hydrokinetic Turbines." In ASME 2012 Noise Control and Acoustics Division Conference at InterNoise 2012. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ncad2012-1385.

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Marine hydrokinetic (MHK) devices are currently being considered for the generation of electrical power in marine tidal regions. Turbulence generated in the boundary layers of these channels interacts with a turbine to excite the blades into low-to mid-frequency vibration. Additionally, the self-generated turbulent boundary layer on the turbine blade excites its trailing edge into vibration. Both of these hydrodynamic sources generate radiated noise. Being installed in a marine ecosystem, the noise generated by these MHK devices may affect the fish and marine mammal well-being. Since this MHK technology is relatively new, much of the design practice follows that from conventional horizontal axis wind turbines. In contrast to other underwater turbomachines like conventional merchant ships that have solid blades, wind turbine blades are made of hollow fiberglass composites. This paper systematically investigates the contrast of this design detail on the blade vibration and radiated noise for a particular MHK turbine design.
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Rivera, Marcos, Daniel Shook, and Emine Foust. "Experimental and Numerical Investigation Into Vertical Axis Water Turbine Self-Starting Phenomenon." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23031.

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Abstract In rural areas and isolated regions of the world, it is often difficult to obtain reliable access to electricity. A solution often exploited is the use of diesel generators to power homes but that has its negative effects on climate change. In this study, an alternative solution is being investigated, which involves the use of water turbines. For low head applications such as rivers, hydrokinetic turbines are used to harness the kinetic energy in rivers. There are two types of hydrokinetic turbines: horizontal and vertical axis water turbines. The turbine studied in this paper is the Darrieus type vertical axis water turbine (VAWT) which has three straight blades. Darrieus type VAWT primarily use lift forces to operate. Advantages of vertical axis water turbines are simple construction, low cost, and being able to self-orient. However, the Darrieus VAWT has several disadvantages like self-starting problem, low coefficient of performance, shaking, debris accumulation, and cavitation. In this study, the effect of using thermoplastic polyurethane blades with varying levels of flexibility have been investigated to remedy the self-starting problem. For blade profile, S1046 airfoil is selected. 3-D numerical models were created by using time-accurate Reynolds-averaged Navier Stokes (RANS) commercial solver (ANSYS Fluent 2019 R3). Experimental results show that turbine with lower blade hardness starts to rotate at 0.34m/s while the turbine with higher blade hardness experiences rotation at 0.51m/s.
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Ferraiuolo, Roberta, Ahmed Gharib-Yosry, Aitor Fernández-Jiménez, Rodolfo Espina-Valdés, Eduardo Álvarez-Álvarez, Giuseppe Del Giudice, and Maurizio Giugni. "Design and Experimental Performance Characterization of a Three-Blade Horizontal-Axis Hydrokinetic Water Turbine in a Low-Velocity Channel." In EWaS5. Basel Switzerland: MDPI, 2022. http://dx.doi.org/10.3390/environsciproc2022021062.

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Звіти організацій з теми "HORIZONTAL AXIS HYDROKINETIC"

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Shahsavarifard, Mohammad, and Eric Bibeau. Experimental power and thrust coefficients of a shrouded horizontal axis hydrokinetic turbine. University of Manitoba, March 2014. http://dx.doi.org/10.5203/ds_sha_1.

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Shahsavarifard, Mohammad, and Eric Louis Bibeau. Experimental power and thrust coefficients of a shrouded horizontal axis hydrokinetic turbine. University of Manitoba Libraries, November 2014. http://dx.doi.org/10.5203/ds_sho_1.

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Shahsavarifard, Mohammad, and Eric Louis Bibeau. Experimental power and thrust coefficients of a shrouded horizontal axis hydrokinetic turbine in yaw operation. University of Manitoba Libraries, November 2014. http://dx.doi.org/10.5203/ds_sha_2.

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