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Flow Analysis of Cryogenic Check Valve for LNG
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 Title & Authors
Flow Analysis of Cryogenic Check Valve for LNG
Moon, Jung-Hyun;
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Swing check valve is opened when the flow direction is forward, when the flow is reversed, the valve is automatically closed by back pressure. In this study, the internal flow field analysis of the valve was conducted by Fluent. The working fluid used in the study, using liquefied methane (CH4) and velocity field, pressure field, pressure drop coefficient were simulated by varying separately the opening divergence into four intervals from 0 to 100%. The approximate research result are as follow : When the opening divergence is smaller, it appears high pressure on the upstream side, this value is relaxed when the opening divergence is large. Flow rate coefficient of the valve shows a larger value as the degree of opening becomes larger, confirming that the check valve used in the study is in the effective flow rate counting range.
Cryogenic;LNG;Swing Check Valve;Flow Analysis;Flow Coefficient;Pressure Drop Coefficient;
 Cited by
C. H. Hong, H. S. Jo, J. W. Park and J. W. Kim, 2008, "A Study on the Inner Flow Analysis for Cryogenic Globe Valve in LNG Ships", The Korean Society of Mechanical Engineers, pp. 330-336.

S. W. Kim, Y. D. Choi, B. S. Kim and Y. H. Lee, 2008, "Flow Characteristics of Cryogenic Butterfly Valve for LNG Carrier (Part 2 : Flow Characteristics under Cryogenic Condition)", KOREAN SOCIETY FOR FLUID MACHINERY, Vol. 11, No. 2, pp. 20-28. crossref(new window)

J. U. Cho and M. S. Han, 2011, "A Study on Flow Analysis at Ball Valve according to Opening and Shutting Angle", The Korean Society of Manufacturing Process Engineers, Vol. 10, No. 2, pp. 46-51.

S. Y. Jeon, C. K. Kim, K. T. Oh and J. Y. Yoon, 2011, "Performance Evaluation of Top Entry Ball Valves using Numerical Analysis", KOREAN SOCIETY FOR FLUID MACHINERY, pp.1-2.