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http://dx.doi.org/10.7842/kigas.2018.22.3.1

Application of Target Reliability Levels for Maintenance of Domestic Natural Gas Pipelines  

Lee, Jin-Han (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
Kim, Jeong-Hwan (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
Jo, Young-Do (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
Kim, Lae Hyun (Department of Chemical and Biomolecular Engineering, Seoul National Univ. of Technology)
Publication Information
Journal of the Korean Institute of Gas / v.22, no.3, 2018 , pp. 1-6 More about this Journal
Abstract
Reliability based design and assessment (RBDA) methodology is one of the newest directions of natural gas pipeline design method. Reliability targets are used to ensure that safety levels are met relevant limit states in the stage of design and maintenance. The target reliability for ultimate limit states such as large leak and rupture were developed using tolerable risk criteria for individual and societal risk. This paper shows the reliability target can be met through the implementation of periodic maintenance measures during the life cycle of the pipelines. The case study involves the calculation of the failure probability due to equipment impact, the calculation of the failure probability due to corrosion, and the estimation the re-inspection interval for domestic natural gas transmission pipelines.
Keywords
Pipeline; Reliability based design; Failure probability; Target reliability;
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