International Journal of Fluid Machinery and Systems

Korean Society for Fluid machinery (한국유체기계학회)
권호 표지
DOI QR코드

DOI QR Code

Performance and Internal Flow Condition of Mini Centrifugal Pump with Splitter Blades

  • Shigemitsu, Toru (Institute of Technology and Science, The University of Tokushima) ;
  • Fukutomi, Junichiro (Institute of Technology and Science, The University of Tokushima) ;
  • Kaji, Kensuke (Graduate School of Advanced Technology and Science, The University of Tokushima) ;
  • Wada, Takashi (Graduate School of Advanced Technology and Science, The University of Tokushima)
  • Received : 2012.10.26
  • Accepted : 2012.12.27
  • Published : 2013.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

Mini centrifugal pumps having a diameter smaller than 100mm are employed in many fields. But the design method for the mini centrifugal pump is not established because the internal flow condition for these small-sized fluid machines is not clarified and conventional theory is not suitable for small-sized pumps. Therefore, mini centrifugal pumps with simple structure were investigated by this research. Splitter blades were adopted in this research to improve the performance and the internal flow condition of mini centrifugal pump which had large blade outlet angle. The original impeller without the splitter blades and the impeller with the splitter blades were prepared for an experiment. The performance tests are conducted with these rotors in order to investigate the effect of the splitter blades on performance and internal flow condition of mini centrifugal pump. On the other hand, a three dimensional steady numerical flow analysis is conducted with the commercial code (ANSYS-CFX) to investigate the internal flow condition in detail. It is clarified from experimental results that the performance of the mini centrifugal pump is improved by the effect of the splitter blades. Blade-to-blade low velocity regions are suppressed in the case with the splitter blades and total pressure loss regions are decreased. The effects of the splitter blades on the performance and the internal flow condition are discussed in this paper.

Keywords

References

  1. Akamatsu, T., and Tsukiya, T., 1998, "Development of a centrifugal blood pump with magnetically suspended impeller and the related fluid mechanical problems," Sadhana, Vol. 23, No. 5-6, pp. 597-603. https://doi.org/10.1007/BF02744582
  2. Horiguchi, H., Matsumoto, S., Tsujimoto, Y., Sakagami, M., and Tanaka, S., 2009, "Effect of Internal Flow in Symmetric and Asymmetric Micro Regenerative Pump Impellers on Their Pressure Performance," International Journal of Fluid Machinery and Systems, Vol. 2, No. 1, pp. 72-79. https://doi.org/10.5293/IJFMS.2009.2.1.072
  3. Shao, J., Liu, S., Yuan, H., and Wu, Y., 2008, "Numerical Simulation and PIV Measurement on the Internal Flow in a Centrifugal Pump," ASME Fluids Engineering Division Summer Meeting, Jacksonville, USA, Proc. FEDSM2008-55025.
  4. Wu, Y., Yuan, H., Shao, J., and Liu, S., 2009, "Experimental Study on Internal Flow of a Mini Centrifugal Pump by PIV Measurement," International Journal of Fluid Machinery and Systems, Vol. 2, No. 2, pp. 121-126. https://doi.org/10.5293/IJFMS.2009.2.2.121
  5. Shigemitsu, T., Fukutomi, J., and Nasada, R., 2009, "Study on Performance and Internal Flow Condition of Mini Turbo-Pump," Proceedings of the 10th Asian International Conference on Fluid Machinery, Kuala Lumpur, Malaysia, CD-ROM, AICFM112.
  6. Nishi, M., Liu, S., Yoshida, K., Tsukamoto, H., and Kouya, S., 1998, "Tip-Clearance Effect on the Performance of a High Speed Mini Turbopump," Proceedings of The Third International Conference on Pumps and Fans, Beijing, China, pp. 223-231.
  7. Liu, S., Nishi, M., Yoshida, K., and Tsukamoto, H., 2000, "A Study on a High Speed Mini Turbopump(2nd Rep: Effect of Bypass Flow on The Pump Performance," Proceedings of 2nd Symp. on Fluid Machinery and Fluid Engineering 1, pp. 633-636.
  8. Liu, S., Nishi, M., Yoshida, K., 2001, "Impeller Geometry Suitable for Mini Turbo-Pump," ASME J.Fluids Engineering, Vol. 123, No. 3, pp. 500-506. https://doi.org/10.1115/1.1385385
  9. Choi, Y., Kurokawa, J., and Matsui, J., 2006, "Performance and Internal Flow Characteristics of a Very Low Specific Speed Centrifugal Pump," ASME J.Fluids Engineering, Vol. 128, No. 2, pp. 341-349. https://doi.org/10.1115/1.2169815
  10. Shigemitsu, T., Fukutomi, J., and Kaji, K., 2011, "Influence of Blade Outlet Angle and Blade Thickness on Performance and Internal Flow Conditions of Mini Centrifugal Pump," International Journal of Fluid Machinery and Systems, Vol. 4, No. 3, pp. 317-323. https://doi.org/10.5293/IJFMS.2011.4.3.317

Cited by

  1. Performance analysis of mini centrifugal pump with splitter blades vol.22, pp.6, 2013, https://doi.org/10.1007/s11630-013-0664-4