Experimental studies of Savonius wind turbines with variations sizes and fin numbers towards performance

Utomo, Ilham Satrio; Tjahjana, Dominicus Danardono Dwi Prija; Hadi, Syamsul

doi:10.1063/1.5024100

Cited by 16 publications

(6 citation statements)

References 8 publications

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“…The multiple layers 90⁰ with OR of 10% improves Savonius wind turbines performance due to fluid flow, which entered the multiple layers gap was directed towards the concave side of returning blade through the overlap ratio gap [25]. The incoming wind towards the concave side of the returning blade will reduce the drag resistance of the returning blade [30].…”

Section: The Effect Of Variation Extra Layers 90⁰ With Overlap Ratio mentioning

confidence: 99%

Experimental Study of Savonius Wind Turbine Performance with Blade Layer Addition

Kurniawan¹,

Tjahjana²,

Santoso³

2020

ARFMTS

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Savonius, a type of vertical axis wind turbine (VAWT), is applicable for harvesting wind energy in Indonesia, having an average wind speed of 4-5 m/s. Owning the advantages as suitable for placing in the urban areas as well as reducing the huge electricity load, the Savonius received considerable attention from researchers in making the performance improvement. Therefore, the current research provides an investigation on the effect of adding extra layers on concave blades on the performance of the Savonius wind turbine model. As the novelty, the modification of conventional Savonius turbine has been developed by adding single and multiple layer blades on the tip blade with an overlap ratio (OR) of 10 and 15%. It was tested under wind speeds of 6.46, 6.99, and 7.27 m/s, which generated by the fans blower with a 2x2 configuration. The results show that the addition of multiple layers increased the Savonius power coefficient by 22.4% and 11.2% at OR of 10 and 15%, respectively. The highest power coefficient (Cp) is found at 0.12, which obtained by the Savonius turbine with multiple layers of 90⁰ and OR of 10% configuration. It is concluded that adding the multiple layer blades enhanced the performance of Savonius wind turbines.

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Section: The Effect Of Variation Extra Layers 90⁰ With Overlap Ratio mentioning

confidence: 99%

Experimental Study of Savonius Wind Turbine Performance with Blade Layer Addition

Kurniawan¹,

Tjahjana²,

Santoso³

2020

ARFMTS

View full text Add to dashboard Cite

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“…Sheng and O'Connor carry out mathematical modeling of turbulent flows [14]. Similar works are performed by other researchers, including experimental studies [15][16][17][18][19][20][21][22][23].…”

Section: Review Of Scientific Investigationsmentioning

confidence: 98%

Improvement Dependability of Offshore Horizontal-Axis Wind Turbines by Applying New Mathematical Methods for Calculation the Excess Speed in Case of Wind Gusts

2021

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The problem of increasing the reliability of wind turbines exists in the development of new offshore oil and natural gas fields. Reducing emergency situations is necessary due to the autonomous operation of drilling rigs and bulk seaports in the subarctic and Arctic climate. The relevance of the topic is linked with the development of a methodology for theoretical and practical studies of gas dynamics when gas flows in a pipe, based on a mathematical model using new mathematical methods for calculation of excess speeds in case of wind gusts. Problems in the operation of offshore wind turbines arise with storm gusts of wind, which is comparable to the wave movement of the gas flow. Thus, the scientific problem of increasing the reliability of wind turbines in conditions of strong wind gusts is solved. The authors indicate a gross error in the calculations when approximating through the use of the Fourier series. The obtained results will allow us to solve one of the essential problems of modeling at this stage of its development, namely: to reduce the calculation time and the adequacy of the model built for similar installations and devices. Experimental studies of gas-dynamic flows are carried out on the example of a physical model of a wind turbine. In addition, a computer simulation of the gas-dynamic flow process was carried out. The use of new approximation schemes in processing the results of experiments and computer simulation can reduce the calculation error by 1.2 percent.

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“…(17), the diameter size for each blade is 22 cm and 5.3 cm for the overlap. Additional features of 3 fin were also recommended in the design [13]. The final design of Savonius vertical axis wind turbine on a vehicle was summarized in Table 3 with its implementation on truck model vehicle as shown in Figure 8.…”

Section: Effect Of Swept Area Design To Mass Inertia Momentmentioning

confidence: 99%

“…………………………………………………………………………….. (13) Power factor (Pf) of 0.9 is widely used in the electrical distributor company.…”

mentioning

confidence: 99%

Design of Savonius Vertical Axis Wind Turbine for Vehicle

Arbiyani

Lasut²

2020

JMEST

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The use of cellular phones is increasing in society, but due to the limited battery capacity of cell phones, it is necessary to charge the battery when travelling in the long distances. The Savonius type wind turbine has a potential as an energy source harvesting the wind energy flowing around the car. However, due to the available space on the car, careful design of Savonius vertical axis wind turbine for vehicle is necessary. The research is conducted numerically using MATLAB software. The wind speed, Reynolds number, and electric power output are numerically simulated to obtain the swept area design. Innovative PLA material in the design is also investigated by simulating the effect of mass inertia moment to the design. This design of Savonius vertical axis wind turbine for vehicle is expected to charge maximum four cell phone batteries with the total electrical output of 60 W. The optimum swept area design of Savonius vertical axis wind turbine for vehicle is 0.150 m 2 using 3 fins, PLA filament material, with an overlap of 5.3 cm, and a diameter for each blade 22 cm according to the overlap ratio used of 0.242. This Savonius vertical axis wind turbine design is feasible as an energy source for vehicle owing to its compact design, innovative material used in the design, and providing the electric power demand in the vehicle.

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Experimental studies of Savonius wind turbines with variations sizes and fin numbers towards performance

Cited by 16 publications

References 8 publications

Experimental Study of Savonius Wind Turbine Performance with Blade Layer Addition

Experimental Study of Savonius Wind Turbine Performance with Blade Layer Addition

Improvement Dependability of Offshore Horizontal-Axis Wind Turbines by Applying New Mathematical Methods for Calculation the Excess Speed in Case of Wind Gusts

Design of Savonius Vertical Axis Wind Turbine for Vehicle

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