Estimation of the design pressure of a prismatic LNG storage vessel

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This study proposed a method of estimating to design pressure in a prismatic storage vessel for liquefied natural gas. The estimation of the design pressure refers to the IGC Code that provides the international standards for storage of liquefied gases in bulk. The estimation of the design pressure was a basic step to scheme a storage vessel. The design pressure resulted from the vapor pressure and the maximum liquid pressure. The liquid pressure was calculated from the effect of gravity and the acceleration applied to the center of gravity of the liquid. Loading conditions of up to 98% were considered in the calculation of the maximum liquid height. The heat ingress warmed the LNG, which caused it to exceed its boiling temperature. Calculation of the vapor pressure was described by the material and energy balance equations. Dynamic simulation about the pressure behavior was conducted by commercial software. The vapor pressure affected by heat ingress from surrounding conditions was calculated with time variations.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2015-06
Language
English
Article Type
Article
Citation

OCEAN ENGINEERING, v.101, pp.40 - 46

ISSN
0029-8018
DOI
10.1016/j.oceaneng.2015.04.018
URI
http://hdl.handle.net/10203/200720
Appears in Collection
ME-Journal Papers(저널논문)
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