Numerical Simulation of the Effect of Wind Velocity on the Counter-Rotating Wind Turbines Performance

Authors

  • Yosua Heru Irawan Department of Mechanical Engineering, Institut Teknologi Nasional Yogyakarta (ITNY), Babarsari Street, Caturtunggal, Depok, Sleman, Yogyakarta 55281, INDONESIA http://orcid.org/0000-0001-9615-3447
  • Muhammad Agung Bramantya Department of Mechanical & Industrial Engineering, Universitas Gadjah Mada

DOI:

https://doi.org/10.22219/jemmme.v4i1.7672

Keywords:

axial distance, counter-rotating wind turbines, dual rotor, mechanical power, performance increase, wind turbines

Abstract

The counter-rotating wind turbines (CRWT) is a wind turbine model developed from a single rotating wind turbine (SRWT) model with a horizontal axis. CRWTs have two rotors rotating in opposite directions on the same axis. The purpose of this research is to investigate the effect of wind velocity on CRWTs performance with different axial distance ratio. The flow around CRWTs is simulated using computational fluid dynamic (CFD) with ANSYS Fluent. The simulation consists of two steps: obtaining the optimum rotation and rotor torque, respectively. These two values are used to calculate the mechanical power of the rotors. In this simulation, the wind velocities are 2 m/s; 3 m/s; and 4.2 m/s. The variations of axial distance ratio are 0.3; 0.5; 0.7; 0.8; and 1. The result of the simulation shows that the optimum ratio of the axial distance will change with the change of wind velocity. Regarding the wind velocity of 2 m/s, the optimal ratio of the axial distance is 0.5. Regarding the wind velocity of 3 m/s and 4.2 m/s, the optimal ratios of the axial distance are 1 and 0.8, respectively.

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References

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Published

2019-05-30

How to Cite

Irawan, Y. H., & Bramantya, M. A. (2019). Numerical Simulation of the Effect of Wind Velocity on the Counter-Rotating Wind Turbines Performance. Journal of Energy, Mechanical, Material, and Manufacturing Engineering, 4(1), 37–46. https://doi.org/10.22219/jemmme.v4i1.7672

Issue

Vol. 4 No. 1 (2019)

Section

Articles

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