Performance Analysis of a Modified Savonius Rotor Using a Variable Blade Thickness

Al-Ghriybah, Mohanad

doi:10.5109/4842522

Cited by 11 publications

(11 citation statements)

References 34 publications

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“…The condition used is a static pressure of 1 atm 29) . The next boundary condition is the wall, where the wall uses the no-slip condition 30) . The connection between the rotating zone and the stationary zone uses the fluids-to-fluids interface and the frozen rotor type 8) .…”

Section: Modeling Methodsmentioning

confidence: 99%

Effect of Blade Angle and Number on the Performance of Bánki Hydro-Turbines: Assessment using CFD and FDA Approaches

Prabowoputra¹,

Prabowo²,

Yaningsih³

et al. 2023

Evergreen

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The Bánki turbine is a cross-flow turbine with a simple structure that is easy to modify. Changing the turbine's runner geometry is one of the modifications that have an effect on its performance. The goal of this study is to quantify the effect of increasing number of blades and the angle of the blades on the performance of the Bánki turbine. This study was carried out using threedimensional modeling with the ANSYS CFX device and the computational fluid dynamics (CFD) method. The five angles of the blade, namely 10˚, 15˚, 20˚, 25˚, and 30˚, are used to create variations. In addition to the angle factor of the blade, research has been conducted on the number of blades, which are 12 blades, 16 blades, 20 blades, 24 blades, 32 blades, 36 blades, 40 blades, 48 blades, and 52 blades. In a steady-state modeling condition, the applied boundary condition is a water flow velocity of 3 m/s. The results of the CFD modeling are analyzed using a factorial design analysis (FDA). The results indicate that runners with a 15˚ Blade's angle and 40-blade perform best. Results of the factorial design analysis show that the blade angle factor and the number of blades interact.

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Section: Modeling Methodsmentioning

confidence: 99%

Effect of Blade Angle and Number on the Performance of Bánki Hydro-Turbines: Assessment using CFD and FDA Approaches

Prabowoputra¹,

Prabowo²,

Yaningsih³

et al. 2023

Evergreen

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“…The modified Savonius into L-type performs better because it enhances the ability of the turbine to extract more energy. Besides, these configuration turbines are more effective in decreasing negative torque during contacting water 27) . Figure 2 shows the L-type turbines.…”

Section: Fig 1: the Schematic Turbine With Additional Bladementioning

confidence: 99%

“…Therefore, modifying the conventional Savonius turbine in the form of Type L can increase its performance because it is lighter than the conventional form 26) . Based on turbine weight, M. Al-Ghriybah's study investigates the thickness of the turbine base material, which shows that the thickness also increases the turbine weight, so the generated performance increases up to 40% 27) . Further research conducted by Herlambang et al defined that an additional blade between the two conventional blades proves that the shape configuration influences the turbine's ability to extract energy 28) .…”

Section: Introductionmentioning

confidence: 99%

Investigation of Blade Modifications to Enhance Savonius Water Turbine Performance Through Vertical Pipe Flow

Prasetyo¹,

Septiyanto²,

Rovianto³

et al. 2023

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Savonius is a turbine with a simple construction and good initial torque that has become a promising technology for generating electric power. However, the efficiency of the turbine still needs to be improved. Therefore, the proposed study was conducted to enhance the Savonius turbine's performance with additional s/r (straight profile) and l/r (blade end). Rainwater harvesting was used as an experiment with only gravitational potential energy. The resulting power output, coefficient of power, and rotational speeds were used to evaluate the turbine's performance. The additional s/r was used to direct the water before hitting the concave turbine, and the additional l/r was used to catch the energy stored in the water in a more optimum manner. Based on the results, an additional blade end (l/r) of 0.6 and a straight blade (s/r) of 0.75 produced the best performance with 0.29 Cp, 1023 rpm of rotational speeds, and a maximum power generated of 60.8 W.

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“…About 10 million MW of energy may be produced by wind energy, which would be sufficient to replace the utilization of fossil fuels [4]. Utilizing wind turbines with suitable designs would allow for the harvesting of such potentials [5]. Solar energy can also be used to generate electricity for a number of different purposes.…”

Section: Introductionmentioning

confidence: 99%

Development of wind-solar maps in Aqaba, Jordan as potential sources for power generation

Al-Ghriybah¹,

Didane²

2023

J Appl Eng Science

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The potential for free, clean, and limitless energy from renewable sources has long been recognized. However, because of a lack of thorough wind and solar maps, expertise, and public understanding of the significance of these resources in the country, Jordan continues to rely on non-renewable sources for its energy needs. The main objective of this study is to analyze the potential of solar and wind energies as renewable resources for power generation. Weibull distribution function with two parameters and the Angstrom-Prescott model, respectively, are used in this study to offer estimates of the wind and solar energy in the coastal city of Jordan, Aqaba during a five-year period. According to the assessment of wind potential, the annual means of the shape and scale parameters at 10 m for the studied station varied between (1.65 to 1.73) and (4.42 to 4.86), respectively. During the dry season, the wind speed was seen to be stronger, while during the wet season, it was seen to be slower. The maximum power density is found to be in September with values of 622.81 W/m2 and 192.74 W/m2 for the elevations 80 m and 10 m, respectively. According to the forecast for solar potential in this area, the city's global solar radiation is promising for the production of solar energy. The maximum global solar radiation is found to be 8.3 KWh/m2 in June. Results also demonstrated that Aqaba city is suitable for wind and solar power generation.

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Performance Analysis of a Modified Savonius Rotor Using a Variable Blade Thickness

Cited by 11 publications

References 34 publications

Effect of Blade Angle and Number on the Performance of Bánki Hydro-Turbines: Assessment using CFD and FDA Approaches

Effect of Blade Angle and Number on the Performance of Bánki Hydro-Turbines: Assessment using CFD and FDA Approaches

Investigation of Blade Modifications to Enhance Savonius Water Turbine Performance Through Vertical Pipe Flow

Development of wind-solar maps in Aqaba, Jordan as potential sources for power generation

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