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http://dx.doi.org/10.15683/kosdi.2022.9.30.550

Flow Safety Assessment by CFD Analysis in One-Touch Insertion Type Pipe Joint for Refrigerant  

Kim, Eun-young (Department of Mechanical Engineering, Graduate School of Incheon National University)
Park, Dong-sam (Department of Mechanical Engineering, Graduate School of Incheon National University)
Publication Information
Journal of the Society of Disaster Information / v.18, no.3, 2022 , pp. 550-559 More about this Journal
Abstract
Purpose: Pipes are widely used as applied devices in many industrial fields such as machinery, electronics, electricity, and plants, and are also widely used in safety-related fields such as firefighting and chemistry. With the diversification of products, the importance of technology in the piping field is also increasing. In particular, when changing the existing copper pipe to stainless steel, it is necessary to evaluate safety and flow characteristics through structural analysis or flow analysis. Method: This study investigated the safety by flow analysis of the 6.35 inch socket model, which are integrated insert type connectors developed by a company, using CFD analysis technique. For CDF analysis, RAN model and LES model are used. Result: As results of the analysis, amplitude of the pressure fluctuation acting on the wall of the piping system is formed at a level of 3,780 Pa or less, which is a very small level of pressure compared with the operating pressure or design stress of the refrigerant piping. Conclusion: These results mean that the effect of vibration caused by turbulence on the structural safety of the pipe is negligible.
Keywords
Piping; Refrigerant; Insert Type Connector; Pressure Distribution; Velocity Distribution; CFD Analysis;
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