International Journal of Fluid Machinery and Systems

Korean Society for Fluid machinery (한국유체기계학회)
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Numerical Investigation on Aerodynamic Performance of a Centrifugal Fan with Splitter Blades

  • Kim, Jin-Hyuk (Department of Mechanical Engineering, Inha University) ;
  • Cha, Kyung-Hun (Department of Mechanical Engineering, Inha University) ;
  • Kim, Kwang-Yong (Department of Mechanical Engineering, Inha University) ;
  • Jang, Choon-Man (Environmental Engineering Research Division, Korea Institute of Construction Technology)
  • Received : 2012.08.09
  • Accepted : 2012.10.08
  • Published : 2012.12.31
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Abstract

This paper presents a numerical investigation on the aerodynamic performance according to the application of splitter blades in an impeller of a centrifugal fan used for a refuse collection system. Numerical analysis of a centrifugal fan was carried out by solving three-dimensional Reynolds-averaged Navier-Stokes equations with the shear stress transport turbulence model. A validation of numerical results was conducted by comparison with experimental data for the pressure and efficiency. From analyses of the internal flow field of the reference fan, the losses by the reverse-flows were observed in the region of the blade passage. In order to reduce these losses and enhance fan performance, two splitter blades were applied evenly between the main blades, and centrifugal impellers having the different numbers of the main blades were tested with their application. Throughout the numerical analyses of the centrifugal fan with splitter blades, it was found that the reverse-flow regions in the blade passage can be reduced by controlling the main blade numbers with splitter blades. The application of splitter blades in a centrifugal fan leads to significant improvement in the overall fan performance.

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References

  1. Kergourlay, G., Younsi, M., Bakir, F. and Rey, R., 2007, "Influence of Splitter Blades on the Flow Field of a Centrifugal Pump: Test-Analysis Comparison," International Journal of Rotating Machinery, Vol. 2007, Article ID 85024, p. 13.
  2. Miyamoto, H., Nakashima, Y. and Ohba, H., 1992, "Effects of Splitter Blades on the Flows and Characteristics in Centrifugal Impellers," JSME International Journal, Vol. 35, No. 2, pp. 238-246.
  3. Madhwesh, N., Karanth, K. V. and Sharma, N. Y., 2011, "Impeller Treatment for a Centrifugal Fan Using Splitter Vanes - A CFD Approach," Lecture Notes in Engineering and Computer Science, Vol. 2192, No. 1, pp. 1981-1986.
  4. Golcu, M., 2006, "Artificial Neural Network Based on Modeling of Performance Characteristics of Deep Well Pumps with Splitter Blade," Energy Conversion and Management, Vol. 47, No. 18-19, pp. 3333-3343. https://doi.org/10.1016/j.enconman.2006.01.011
  5. Golcu, M., Pancar, Y. and Sekmen, Y., 2006, "Energy Saving in a Deep Well Pump with Splitter Blade," Energy Conversion and Management, Vol. 47, No. 5, pp. 638-651. https://doi.org/10.1016/j.enconman.2005.05.001
  6. Jeon, W. H., 2005, "A Numerical Study on the Acoustic Characteristics of a Centrifugal Impeller with a Splitter," GESTS International Transactions on Computer Science and Engineering, Vol. 20, No. 1, pp. 17-28.
  7. Jang, C. M., Lim, S. J. and Yang, S. H., 2011, "Performance Analysis for Turbo Blower According to Inlet-Vane Angle," Journal of the KSME B, Vol. 35, No. 3, pp. 301-307. https://doi.org/10.3795/KSME-B.2011.35.3.301
  8. ANSYS CFX-11.0, 2006, ANSYS CFX-Solver Theory Guide, ANSYS Inc.
  9. Menter, F. R., 1994, "Two-Equation Eddy-Viscosity Turbulence Models for Engineering Application," AIAA Journal, Vol. 32, No. 8, pp. 1598-1605. https://doi.org/10.2514/3.12149
  10. Menter, F. and Esch, T., 2001, "Elements of Industrial Heat Transfer Predictions," Proceedings of 16th Bazilian Congress of Mechanical Engineering (CPBEM), Uberlandia, Brazil, CD-ROM.

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