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Analysis of Likelihood of Failure for the Thinning of Hydrochloric Acid Corrosion through Risk-Based Inspection using API-581 BRD  

Lee, Hern-Chang (Korea Safety Engineering & Consulting)
Jo, Ji-Hoon (Korea Occupation Safety Healthy and Agency)
Shin, Dong-Il (Department of Chemical Engineering, Myongji University)
Kim, Tae-Ok (Department of Chemical Engineering, Myongji University)
Publication Information
Journal of the Korean Institute of Gas / v.14, no.4, 2010 , pp. 37-44 More about this Journal
Abstract
To propose a cause analysis method of pressurized facilities, a likelihood of failure (LOF) for the thinning module by hydrochloric acid corrosion was analyzed through the risk-based inspection (RBI) using API-581 BRD. For this investigation, the technical module subfactor (TMSF), as a main factor of the LOF, was estimated, and the effects of parameters on the TMSF were analyzed quantitatively. As a result, we found that the TMSF increased with increasing chloride ion concentration and temperature, but it decreased with increasing thickness of the facilities, inspection number and inspection effectiveness. Also, the TMSF showed a relatively low value for the monitoring system implemented and the overdesign factor>1.5. In this condition, the TMSF changed sensitively with the inspection number, the inspection effectiveness and the overdesign factor, and its magnitude varied with the monitoring system.
Keywords
risk-based inspection (RBI); likelihood of failure (LOF); API-581; thinning; hydrochloric acid (HCl); technical module subfactor (TMSF);
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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