대형캐비테이션터널(LCT) 실물 구동펌프 성능시운전
Performance Trial-Test of the Full-Scale Driving Pump for the Large Cavitation Tunnel(LCT)
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초록
The objective of the present study is to analyze the results of the trial-test for the full-scale driving pump, which is arranged in the LCT (Large Cavitation Tunnel). Firstly, the reasons of selecting the final design pump are introduced in terms of the performance analysis in model tests. The trial-test items for the full-scale driving pump are measurements of output current/voltage at the inverter of the main motor and the flow velocity in the LCT test section. The test results show the increase in flow rate of about 10.7% and the decrease in pump head of about 26%, compared with those of final design-pump specification. The motor power has the margin of about 22%. The performance analysis for the full-scale pump is conducted using the commercial code (CFX-10). The delivered power calculated with CFX-10 shows good agreement with that extracted from the full-scale pump test. It is found that CFX-10 is useful to analyze a full-scale pump.
Abstract
The objective of the present study is to analyze the results of the trial-test for the full-scale driving pump, which is arranged in the LCT (Large Cavitation Tunnel). Firstly, the reasons of selecting the final design pump are introduced in terms of the performance analysis in model tests. The trial-test items for the full-scale driving pump are measurements of output current/voltage at the inverter of the main motor and the flow velocity in the LCT test section. The test results show the increase in flow rate of about 10.7% and the decrease in pump head of about 26%, compared with those of final design-pump specification. The motor power has the margin of about 22%. The performance analysis for the full-scale pump is conducted using the commercial code (CFX-10). The delivered power calculated with CFX-10 shows good agreement with that extracted from the full-scale pump test. It is found that CFX-10 is useful to analyze a full-scale pump.
참고문헌 (7)
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- Ahn, J.W., "Performance Analysis of a Mixed-Flow Pump for Waterjet Propulsion", Journal of Ship and Ocean Technology, 9(2), pp.11~20 (2005)
- Hydrodynamics design of the low noise large cavitation tunnel, "Arndt, R.E.A.", University of Minnesota, ~ (2007)
- Friesch, J., "HYKAT, The new cavitation test facility of hamburg ship model basin", International Symposium on Hydro- and Aerodynamics in Marine Engineering: HADMAR ’91 (1991)
- Construction of the low noise large cavitation tunnel (2nd Year Report), "Kim, K.S.", KRISO, ~, pp.Report No. UCG01260-06049 (2006)
- Miyagawa, K., "Development of a low noise pump by new design concept", Proceedings of FEDSM’03, FEDSM2003-45306 (2003)
- Wilson, M.B., "Hydrodynamic and hydroacoustic characteristics of the new david taylor model basin large cavitation channel", Proceedings of the 2nd international Symposium on Propellers and Cavitation, pp.305~311 (1992)