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Evaluation of Performance in Semi-Open Type Impeller by Duplex Stainless Material for Ballast Water Centrifugal Pump

듀플렉스 스테인리스강 소재를 응용한 Semi-Open Type 임펠러의 성능 평가

  • Received : 2014.04.29
  • Accepted : 2014.07.14
  • Published : 2014.08.30

Abstract

A special usage impeller pump for ballast water treatment is part of an offshore plant's structure. It has to maintain a high corrosion resistance in an extreme environment, in which it can contact several kinds of aqueous solutions. The duplex stainless steel used in such severe environments is known to have corrosion resistance and excellent mechanical properties. This study estimated the performance of an impeller pump system designed using duplex stainless steel through a computational fluid dynamics analysis. As a result, it was determined that the pressure drop increases and the impeller performance is lowered if the equivalent roughness is enlarged. The surface precision of the duplex stainless steel must be consistently maintained. If thisis the case, it was determined that the existing STS steel can be substituted for the Duplex stainless steel.

Keywords

Duplex stainless steel;Impeller;Ballast water;Computational fluid dynamics analysis

References

  1. Park, J.H., Kim, H.J., Yoon, D.R., Jang, T.W., Kim, M.C., 2007. Application of FCA Welding for Duplex Stainless Steel pipe used for the Offshore. Proceedings of The Korean Welding and Joining Society, Jeonju Korea, 33-35.
  2. Kim, S.J., Kim, D.W., Kim, Y.J., 1999. Numerical Analysis of Flow Characteristic in Double Suction Pump. Proceeding of Korean Society for Fluid Machinery, Seoul Korea, 257-263.
  3. Kim, Y.J., Kim, Y.H., Woo, N.S., Kwon, J.K., 2011. Numerical Study for Development of Submerged Seawater Lift Pump. Journal of Ocean Engineering and Technology, 25(5), 21-26. https://doi.org/10.5574/KSOE.2011.25.5.021
  4. Kim, Y.J., Woo, N.S., , Kwon, J.K., Chung, S.K., Park, E.S., 1994. Performance Analysis of 2 Stage Mixed Flow Pump for Seawater Lifting. Proceedings of The Korean Society of Mechanical Engineers, Jeju Korea, 3017-3021.
  5. Seo, W.C., Park, C., Bang, K.S., 2012. Microstructure and Impact Toughness of Weld Metal in Multipass Welded Super Duplex Stainless Steel. Journal of Ocean Engineering and Technology, 26(6), 27-32. https://doi.org/10.5574/KSOE.2012.26.6.027
  6. Kim, H.J., Lee, S.K., 1995. Low Temperature Impact Toughness and Stress Corrosion Resistance in Duplex Stainless Steel Welds. Journal of Ocean Engineering and Technology, 9(1), 152-160.
  7. An, Y.J., Shin, B.R., 2009. CFD Analysis on the Performance of Double-Suction Centrifugal Pump. Proceeding of Korean Society for Fluid Machinery, Jeju Korea, 49-53.
  8. Hong, S.M., Lee, M.K., Kim, G.H., Rhee, C.K., 2006. An Analysis on Fatigue Fracture of Nuclear Pump Impeller Alloys by Ultrasonic Vibratory Cavitation Erosion. Journal of The Korean Institute of Surface Engineering, 39(1), 35-42.
  9. Kang, K.W., Kim, Y.H., Kim, Y.j., Woo, N.S., Kwon, J.K., Yoon, M.O., 2010. A Numerical Study on the Performance Analysis of the Mixed Flow Pump for FPSO. Journal of Fluid Machinery and Systems, 14(5), 12-17. https://doi.org/10.5293/kfma..2011.14.5.012

Acknowledgement

Supported by : 중소기업청