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http://dx.doi.org/10.14346/JKOSOS.2017.32.4.129

Risk Analysis for Installation Types of Pressure Safety Valve used in the High-pressure Gas Facility  

Kim, Myung-Chul (Department of Safety Engineering, Korea National University of Transportation)
Woo, Jeong-Jae (Department of Safety Engineering, Korea National University of Transportation)
Lee, Hyung-Sub (Department of Safety Engineering, Korea National University of Transportation)
Baek, Jong-Bae (Department of Safety Engineering, Korea National University of Transportation)
Publication Information
Journal of the Korean Society of Safety / v.32, no.4, 2017 , pp. 129-136 More about this Journal
Abstract
This study investigated the probability of possible accident through qualitative and quantitative analysis of the pressure safety valve types installed in facilities using high pressure gas to compare the installation domestic and foreign pressure safety valve standards sought the safety characteristics and safety improvement direction accordingly. The three types are the case where the shut-off valve is not installed at the front of the PSV (Case A), If a shut-off valve is installed at the front of the PSV for inspection (Case B) and If a shut-off valve is installed in front of PSV (C.S.O), PSV is installed in parallel (Case C). Three types of cases were compared with FTA and HAZOP. The results of study of the possible accidents due to over-pressure safety valve installation type, used in a high-pressure gas facilities was shows in the following order Case B > Case A > Case C. The results of analysis through FTA was in order to protect the reservoir for the possible occurring of accident the safety valve installation is depend on its type. In the FTA analysis, defects in the device itself which attached to the storage tank as a substitute for analysis of the probability of operator mistakes was Case B with as high as $2.01{\times}10^{-6}$. Depending on the type of installation analysis of Case B in order to ensure safety is prohibited to install shut-off valve and believes that mandatory regulations are needed. Rationally installing of pressure safety valve in the high pressure using facilities will be expected to improve the industrial safety from severe accidents such as high-pressure gas fire explosion.
Keywords
high-pressure gas facility; pressure safety valve(PSV); shut-off valve; risk analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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