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http://dx.doi.org/10.9713/kcer.2019.57.2.225

A Study on Minimum Separation Distance for Aboveground High-pressure Natural Gas Pipelines  

Lee, Jin-Han (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
Jo, Young-Do (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
Publication Information
Korean Chemical Engineering Research / v.57, no.2, 2019 , pp. 225-231 More about this Journal
Abstract
In Korea, the minimum separation distance between aboveground high-pressure natural gas pipeline and buildings is regulated by Korea gas safety (KGS) code. In this paper, The technical backgrounds for the revision of the KGS code related to the minimum separation distance was presented. A consequence-based approach was adopted to determine the minimum separation distance by a reasonable accident scenario, which was a jet fire caused by the rupture of one inch branch line attached the gas pipeline. Where, the higher thermal radiation flux threshold was selected for workers in industrial area than for people in non-industrial area, because the workers in industrial area were able to escape in a shorter time than the people in public. As result of consequence analysis for the accident scenario, we suggested the KGS code revision that the minimum separation distances between high-pressure natural gas pipeline installed above ground and buildings should be 30 meter in non-industrial area and 15 meter in industrial area. The revised code was accepted by the committee of the KGS code and now in effect.
Keywords
Separation distance; Gas pipeline; Jet fire; Consequence-based;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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