Browse > Article
http://dx.doi.org/10.7842/kigas.2017.21.3.39

The Development of Life Evaluation Program for LNG Storage Tank considering Fatigue and Durability  

Kim, Jung-Hoon (Institutes of Gas R&D, Korea Gas Safety Corporation)
Kim, Young-Gu (Institutes of Gas R&D, Korea Gas Safety Corporation)
Jo, Young-Do (Institutes of Gas R&D, Korea Gas Safety Corporation)
Publication Information
Journal of the Korean Institute of Gas / v.21, no.3, 2017 , pp. 39-45 More about this Journal
Abstract
The LNG storage tank as core facility of LNG industry is mainly composed of the inner tank of nikel 9% steel and the outer tank of prestressed concrete. To respond proactively increased risk of structure performance deterioration due to fatigue of the inner tank and durability reduction of the outer tank, life evaluation program for LNG storage tank is needed. In this study, life evaluation program for LNG storage tank was developed to assess fatigue of the inner tank and durability(carbonation and chloride attack) of the outer tank. By defining the main three scenarios in the inner tank, the fatigue life analysis is conducted from structural analysis and Miner's damage rule. Carbonation progress of the outer tank is predicted according to thickness of cover concrete by using carbon dioxide contents and data of penetration depth. To consider a variety of input conditions and a reliability in results of chloride attack, the evaluation of choride attack for the outer tank is constructed through Life-365 program of open source.
Keywords
LNG storage tank; fatigue; carbonation; chloride attack; durability; life evaluation program;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Lee, S. R., Song, I. H., Kim, H. S., "Service Life Assessment and Restrain Methods of Carbonation Attack on PC Outer Wall of LNG Storage Tanks", KIGAS, 18(2), 73-80, (2014)
2 Lee, S. R., Lee, K. M., Kim, H. S., "Prediction of Fatigue Life for 270,000 kl LNG Storage Tank According to Shape of Corner-protection Knuckle", KIGAS, 18(2), 69-72, (2014)
3 BS EN 14620-1-5, Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between $0^{\circ}C$ and -16 $5^{\circ}C$, CEN, (2006)
4 Yoon I. S., Lee Y. W., Hong S. H. and Lee Y. W., "Finite Element Analysis of Membrane for Liquified Natural Gas,"Trans. of the KSME, 18(10), 2797-2804, (1994)
5 Kim, J. H., Kang, S. K., Kim, Y. G., Jo, Y. D., "An Assessment of Carbonation and Chloride Attack for Outer Concrete of LNG Storage Tanks", Korean Journal of Hazardous Materials, 3(1), 15-23, (2015)
6 Cho, M. S., Noh, J. M., Kwon, K. J., "Development of Integrated Structural Life Management System in Nuclear Power Plants", KCI concrete journal, 22(6), 61-64, (2010)
7 Bentz, E. C. and Thomas, M. D. A., Life-365 Service Life Prediction Model and Computer Programe for Predicting the Service Life and Life-Cycle Costs of Reinforced Concrete Exposed to Chlorides, Life365 Users Manual, (2008)
8 Lee, S. R., Kim, H. S., " The comparative risk assessment of LNG tank designs using FTA", KIGAS, 16(6), 48-53, (2012)