Computational model of Savonius turbine

Díaz, Argemiro Palencia; Pajaro, Giovanni Jiménez; Salas, Khriscia Utria

doi:10.4067/s0718-33052015000300009

Cited by 6 publications

(1 citation statement)

References 24 publications

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“…The precedent studies used a 3D SST k- turbulence model which agrees with the experimental work of [12,13,14]. This model employs to analyze the transient forces that affect DWTs.…”

Section: Turbulence Modelsmentioning

confidence: 88%

The Effect of Darrieus and Savonius Wind Turbines Position on the Performance of the Hybrid Wind Turbine at Low Wind Speed

Ali¹,

Hassan²,

Aljabair³

2020

International Journal of Mechanical Engineering and Technology (Ijmet)

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This paper presents an experimental and numerical simulation to investigate a hybrid vertical axis wind turbine model highly efficient which can be worked at low wind speed by studying the aerodynamic characteristics of four models of hybrid VAWTs. The hybrid WT consists of the SWT having two blades and the DWT type straight having two blades. Four models were constructed to study experimentally and numerically to choose the best model. Two models were DWT in the upper and SWT in the lower, also two models were SWT in the upper and DWT in the lower. The phase stage angle between the turbines is 0 o and 90 o . The experimental and numerical results showed that the performance of hybrid WT where DWT in the upper and SWT in the lower with phase stage 90 o is better than in the other models, it can be started to work at a wind velocity of 2.2 m/s. At the wind velocity 3 m/s, the values of the parameters are the rotational speed (198 rpm), the CP (0.3195), the CT (0.2003), the TSR (1.6) and self-starting rotation at this value of wind velocity (3 m/s). The efficiency of extracting the wind power by hybrid WT is (51.2 %).

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“…The precedent studies used a 3D SST k- turbulence model which agrees with the experimental work of [12,13,14]. This model employs to analyze the transient forces that affect DWTs.…”

Section: Turbulence Modelsmentioning

confidence: 88%

The Effect of Darrieus and Savonius Wind Turbines Position on the Performance of the Hybrid Wind Turbine at Low Wind Speed

Ali¹,

Hassan²,

Aljabair³

2020

International Journal of Mechanical Engineering and Technology (Ijmet)

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Review of the Savonius rotor's blade profile and its performance

Chen

Zhang

2018

Journal of Renewable and Sustainable Energy

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The utilization of urban wind energy through small wind turbines has become an arising technology to ease the conflicts between rising energy demands in buildings and depletion of traditional energy resources. Many studies have reported that drag type vertical axis wind turbines have superior performance in the unsteady wind because of their attractive features. Several review studies have been conducted on these turbines. They mainly focused on the geometrical design parameters, the flow patterns, the research methodology, and the wind tunnel blockage correction. However, less research has been conducted to classify the Savonius rotor based on the classification criterion of the blade profile and has made a comprehensive performance comparison between different types of Savonius rotors. The blade profile is the essential design issue for a Savonius rotor; therefore, the variation of the blade profile will change the design parameters and affect the rotor's performance significantly. So, the classification based on the blade profile can not only present the effect of key design parameters on rotor's performance for each blade profile easily but also obtain the functional features of different profiles and the comparison among different profiles. Hence, in this article, we aim to summarize the classification of Savonius wind turbines according to the blade profile and present the development of this promising low speed generator.

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