A Study on Damage Analysis Safety Distance Setting for LPG BLEVE 


Vol. 35,  No. 6, pp. 25-31, Dec.  2020
10.14346/JKOSOS.2020.35.6.25


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  Abstract

Boiling Liquid Expanding Vapor Explosion(BLEVE) can cause not only economic damage to the plant but also serious casualties. LPG accidents account for 89.6 percent of all accidents caused by gas leaks in Korea over the past nine years, while casualties from accidents also account for 73 percent of all accidents, according to statistics from the Korea Gas Safety Corporation. In addition, a potential explosion and a fire accident from one LPG storage tank may affect the nearby storage tanks, causing secondary and tertiary damage (domino effect). The safety distance standards for LPG used by LPG workplaces, charging stations, and homes in Korea have become stricter following the explosion of LPG charging stations in Bucheon. The safety distance regulation is divided into regulations based on the distance damage and the risk including frequency. This study suggests two approaches to optimizing the safety distance based on the just consequence and risk including frequencies. Using the Phast 7.2 Risk Assessment software by DNV GL, the explosion overpressure and heat radiation were derived according to the distance caused by BLEVE in the worst-case scenario, and accident and damage probability were derived by considering the probit function and domino effect. In addition, the safety distance between LPG tanks or LPG charging stations was derived to minimize damage effects by utilizing these measures.

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  Cite this article

[IEEE Style]

김종혁, 이병우, 김정욱, 정승호, "A Study on Damage Analysis Safety Distance Setting for LPG BLEVE," Journal of the Korean Society of Safety, vol. 35, no. 6, pp. 25-31, 2020. DOI: 10.14346/JKOSOS.2020.35.6.25.

[ACM Style]

김종혁, 이병우, 김정욱, and 정승호. 2020. A Study on Damage Analysis Safety Distance Setting for LPG BLEVE. Journal of the Korean Society of Safety, 35, 6, (2020), 25-31. DOI: 10.14346/JKOSOS.2020.35.6.25.

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