Evaluation of Performance in Semi-Open Type Impeller by Duplex Stainless Material for Ballast Water Centrifugal Pump Lee, Jin-Woo; Kim, Yun-Hae; Gang, Young-Gwan; Lee, Sang-Hoon;
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.
Analytical Study on the Structural Strength of an Air Compressor for Main Engine Starting of 22000TEU Class Container Ships, Journal of the Korean Society of Manufacturing Process Engineers, 2015, 14, 5, 60
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.
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.
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.
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.
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.
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.
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.
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.
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.