The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Influence of Circualr Casing on the Performance of Very Low Specific Speed Centrifugal Pump

원형케이싱이 극저비속도 원심펌프의 성능에 미치는 영향

  • Published : 2006.02.01
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Abstract

Recently, according to the trend of small size in scale and high speed in rotation of turbomachinery, very low specific speed centrifugal pump is taking a growing interest because the pump is characterized by high head and low flow rate with convenience of manufacturing and maintenance compared with conventional positive displacement pump. However, the efficiency of the very low specific speed centrifugal pump drops rapidly with the decrease of specific speed. The purpose of this study is nor only to examine the influence of casing type on the performance of centrifugal pump in the range of very low specific speed but also to determine the proper casing type for the improvement of pump performance. The results show that circular casing is suitable for the centrifugal pump in the range of very low specific speed and the influence of impeller configuration on the pump performance is very small. Radial thrust in the circular and volute casings is considerably small in the range of very low specific speed.

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References

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Cited by

  1. Investigation on the Internal Flow Characteristics of the Low Specific Speed Centrifugal Pump with Circular Casing vol.32, pp.3, 2008, https://doi.org/10.5916/jkosme.2008.32.3.404
  2. Performance Evaluation on Impeller Related Parameters Change in Centrifugal Pump of very Low Specific Speed vol.14, pp.1, 2011, https://doi.org/10.5293/KFMA.2011.14.1.011