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http://dx.doi.org/10.7842/kigas.2019.23.2.28

A Consequence Analysis of the Mitigation Impact on Emergency Shut-off Valves for Accidents of Underground Pipelines  

Park, Sang Bae (Department of Safety Engineering, Pukyong National University)
Lee, Chang Jun (Department of Safety Engineering, Pukyong National University)
Publication Information
Journal of the Korean Institute of Gas / v.23, no.2, 2019 , pp. 28-34 More about this Journal
Abstract
A large number of underground pipelines in the Ulsan National Industrial Complex has been constructed to improve the productivity of chemical products and tackle transportation problems. Now, the total of 1,293km of underground pipelines around 62 companies has been installed and operated. Many of underground pipelines have been installed outside of factories. For a past three years, five gas leakage accidents have occurred and the emergency response took up to 8 hours or more. Due to these delay in accidents, second serious accidents might occur and lead to occur damages to adjacent residents. In this study, it is assumed that emergency valve systems are installed under a ground and the efficacy of these is verified. Consequence analysis program was employed to evaluate the mitigation impact of emergency valve systems. The results show that these valve systems are economical and their performances for a mitigation are excellent. The results indicate that the installation of emergency valve systems for underground pipelines should be urgently legislated and performed.
Keywords
underground pipeline; emergency valve system; consequence analysis; ALOHA; ulsan complex;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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