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J
jffhmt.avestia.com
article
https://jffhmt.avestia.com/2025/036.html
### Study the Effect of Blade Angle on Hydrokinetic Turbine Performance. ***Abstract -*** *Harnessing renewable energy from water currents, such as rivers and tidal streams, without extensive infrastructure, positions hydrokinetic turbines as a highly promising technology. This research details the design and optimization of hydrokinetic turbine blade profiles to significantly improve their efficiency and overall performance. A comprehensive analysis, utilizing Computational Fluid Dynamics (CFD) simulations, was conducted to investigate the influence of varying angles on blade hydrodynamic performance. The findings conclusively demonstrate that the optimal selection of the blade angle can substantially enhance turbine efficiency, thus bolstering its potential for large-scale energy production. Furthermore, a specific angle of 67.5 degrees exhibited an unexpectedly superior power output compared to angles of 15 and 45 degrees. This work advances hydrokinetic technology and provides a robust framework for the continued optimization of renewable energy systems.*. ***Keywords:*** CFD, energy, hydrokinetic turbine, blade angle. The objective of this project is to design, build, and test a hydrokinetic turbine with different blade angles.
D
digital-library.theiet.org
article
https://digital-library.theiet.org/doi/full/10.1049/tje2.12367
The fluid angle of attack decreases as the blade inlet angle increases at high flow, allowing the impeller power loss to drop and performance to increase. To
R
researchgate.net
research
https://www.researchgate.net/publication/321115990_Effect_of_blade_angle_on_t…
The results from the laboratory indicated that the HST with a twenty-one degree blade angle had 38.10% efficiency at the water flow rate of 2 m/s. It could
R
rgu-repository.worktribe.com
article
https://rgu-repository.worktribe.com/OutputFile/1380146
Pressure and power coefficients for 'S' shaped blades have been calculated and it is reported that the use of deflectors decreases the power output of the VAWT.
S
sciencedirect.com
article
https://www.sciencedirect.com/science/article/abs/pii/S0960148124019906
Based on the optimized blade angles, the efficiencies are improved by 1.12 % and 1.42 % at N S = 150 and 270 respectively with a constant power output of 30 MW.
E
en.wikipedia.org
article
https://en.wikipedia.org/wiki/Francis_turbine
# Francis turbine. Francis inlet scroll at the Grand Coulee Dam. Side-view cutaway of a vertical Francis turbine. Here water enters horizontally in a spiral-shaped pipe (spiral case) wrapped around the outside of the turbine's rotating *runner* and exits vertically down through the center of the turbine. The **Francis turbine** is a type of water turbine. Francis turbines are the most common water turbine in use, and can achieve over 95% efficiency. A wicket gate "Wicket gate (hydraulics)") around the outside of the turbine's rotating runner controls the rate of water flow through the turbine for different power production rates. Francis turbines are usually mounted with a vertical shaft, to isolate water from the generator. The Francis turbine is a type of reaction turbine, a category of turbine in which the working fluid comes to the turbine under immense pressure and the energy is extracted by the turbine blades from the working fluid.
I
iopscience.iop.org
article
https://iopscience.iop.org/article/10.1088/1742-6596/1042/1/012006/pdf
Runner meridional shape, blade angle distribution, and thickness distribution in developing the blade shape has a major contribution to increase or decrease the
A
academia.edu
research
https://www.academia.edu/128188275/Study_on_the_effect_of_the_runner_design_p…
In this study 50 MW, Francis hydro turbine with specific speed 323 m-kW was designed and considered for the optimization. The various parameter as runner