Numerical Study of Savonius Wind Turbine with Fluid-Rotor Interactions

Lillahulhaq, Zain; Djanali, Vivien Suphandani

doi:10.12962/j23546026.y2019i1.5106

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…The use of the endplate significantly affects the performance of the Savonius turbine. Previous research studies have shown a comparison of the numerical streamline of a Savonius turbine with and without an endplate with 3-dimensional visualization [15]. The results showed that the Savonius turbine without endplate has a significant enough resistance in the downstream turbine.…”

Section: Introductionmentioning

confidence: 96%

Experimental Study of Circular Cut Off Endplate Effect on the Savonius Turbine

2022

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The Savonius turbine is widely used because it has a simple design. However, the Savonius turbine has a lower efficiency than the Horizontal Axis Wind Turbine (HAWT). Several studies have been conducted to increase the efficiency of the Savonius turbine. Turbine performance can be improved by reducing the negative vortex by creating a flushing effect. This experiment was conducted to determine the impact of circular cut-off end plates on the Savonius turbine. The research results are shown through turbine performance data on wind turbine angular speed, electric power, static torque, and efficiency. The wind turbines with circular cut-off endplates had higher angular velocities than conventional Savonius turbines. The angular velocity measurement is carried out when the turbine is unloading. Meanwhile, the electric power and static torque of a conventional turbine are more significant than a modified turbine. The measurement of electric power and static torque is carried out when the turbine is in a generator-loaded condition (loading).

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Section: Introductionmentioning

confidence: 96%

Experimental Study of Circular Cut Off Endplate Effect on the Savonius Turbine

2022

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“…Until now, the utilization of wind turbines in Indonesia has not been carried out on a large scale. Some turbines that are widely applied in Indonesia include propeller turbines [3], Turgo [4], Crossflow [5], Pelton [6], and Savonius [7].…”

Section: Introductionmentioning

confidence: 99%

Experimental study of small hydro turbine propeller performance with a variety of blade angles of attack

Lillahulhaq

Sandy²,

Mahardika³

et al. 2022

Sinergi

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The availability of non-renewable energy has recently been running low and so impacts electrical energy. Renewable energy is converted from natural sources to kinetic energy. The Double Propeller Water Turbine is a water turbine that is suitable to be applied using a small flow head. This research is a development of previous research by changing the degree of inclination of the blade angle on the turbine, which is used to determine changes in the power and efficiency of the Double Propeller turbine at various speeds. The results showed that the Double Propeller turbine rotation’s performance was directly proportional to the slope of the turbine blade angle. The optimum angle of attack on the hydro turbine affected the lift force and the ability of the water flow to capture water power. At the lowest blade angle, which is 20 degrees, the highest rotational speed is obtained with a value of 335 rpm. The turbine generates the most significant power with a blade angle of 20o, with a value of 4.81 watts, and the highest efficiency is 24%. The degree of blade angle affects the performance of the Double Propeller turbine.

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“…Wind turbines are one of the tools used in energy utilization, especially the use of wind energy which is often used as one of the power plants, because the use of wind energy is one of the natural resources that will not run out [1]. The classification of wind turbines based on their axes is classified into 2 types, namely horizontal and vertical axes [2]. Wind turbine performance can be improved by varying the shape of turbine blades such as overlap [3], myring, and fin [4]- [7] or variations on the addition of a disruptive cylinder [8], [9].…”

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confidence: 99%

Simulation of Overlap Effect on Savonius Wind Turbine Performance by Varying Cylinder Distance in Front of Returning Blade

Lukitadi,

Setiawan,

Firmansyah

2023

IJMEIR

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⎯ The performance of Savonius wind turbine was improved in the previous experimental studies that added overlap and variation of disruptive cylinder distances in front of returning blade. However, the study could not display flow visualization such as velocity contours, streamlined velocity, and pressure contours on turbines so further research is needed. This research is in the form of numerical study using 3-dimensional Computational Fluid Dynamics (CFD) method. The simulation is, determine visualize the turbine's flow like a velocity contours, streamlined velocity, and pressure contours. The turbine has the same diameter and height of 0.4 meters with overlap addition. The various distances of the disruptive cylinder used is S/d = 1.4; S/d = 1.7 ; S/d = 2 and S/d = 2.3. The final result shows that the visualization at a distance of S/d = 1.7 is the most optimal wake distance to cover the overall returning blade side so that the performance of the Savonius wind turbine at that distance is highest compared to other variations.

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Numerical Study of Savonius Wind Turbine with Fluid-Rotor Interactions

Cited by 5 publications

References 9 publications

Experimental Study of Circular Cut Off Endplate Effect on the Savonius Turbine

Experimental Study of Circular Cut Off Endplate Effect on the Savonius Turbine

Experimental study of small hydro turbine propeller performance with a variety of blade angles of attack

Simulation of Overlap Effect on Savonius Wind Turbine Performance by Varying Cylinder Distance in Front of Returning Blade

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