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http://dx.doi.org/10.5916/jkosme.2016.40.9.780

Evaluation of structural integrity of the HP vaporizer and pipes of LNG fuel gas supply system  

Kim, Chang-Soo (R & D Center, DongHwa Entec)
Yoon, Joo-Hwan (Department of Mechanical Engineering, Korea Maritime and Ocean University)
Lee, Chang-Joon (Department of Mechanical Engineering, Korea Maritime and Ocean University)
Ha, Man-Young (School of Mechanical Engineering, Pusan National University)
Cho, Jong-Rae (Division of Mechanical Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.40, no.9, 2016 , pp. 780-785 More about this Journal
Abstract
Heavy oil used as ship propulsion has a serious issue regarding exhaust emission of global warming. Recently, among large-scale merchant ships are using LNG as green ships so called ech-ships. In this study, an vaporizer and pipes under cryogenic and high pressure load were considered to evaluate structural integrity according to codes. Structural analysis of the vaporizer and pipes was performed using the commercial code, ANSYS. Integrity evaluation of the vaporizer based on von Mises stress was performed in accordance with allowable stress specified in ASME Boiler & Pressure Vesssel Section VIII Division 2. To assess structural integrity of the pipes, stress components were combined and compared with ASME B31.3. The calculated stresses for all load cases are lower than allowable stresses, therefore the structural integrity of equipments are verified.
Keywords
Liquefied natural gas (LNG); Fuel gas supply system (FGSS); Vaporizer; Pipe; Structural integrity evaluation;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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