Structure Analysis and Design Optimization of Stiffeners in LNG Tanks

Jin, Chengzhu; Jin, Kyo-Kook; Ha, Sang-Su; Seo, Heung-Seok; Yoon, Ihn-Soo

doi:10.3795/ksme-a.2012.36.3.325

Cited by 8 publications

(2 citation statements)

References 1 publication

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“…Accordingly, many studies have been conducted for liquefied natural gas (LNG) transport and supply [1,2]. As LNG is liquefied at a temperature of -179, it is transported through pipes.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis and Experimental Verification Based on Design Parameter Variation of Vacuum-Insulated Pipe for Cryogenics

Lee¹,

Kim²,

Lee³

2016

Proceedings of the International Symposium on Mechanical Engineering and Material Science

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Abstract. Since natural gas is mainly transported or supplied in a liquefied state under high pressure, BOG (boil off gas) is frequently generated due to the adiabatic relation outside the pipe. To reduce BOG, various studies are being conducted. Recently, vacuum-insulated pipes are mainly used. Thus, in this study, temperature distribution in a vacuum-insulated pipe was observed through thermal analysis with the pipe type and diameter as design parameters. Additionally, thermal analysis was verified through an experiment under the same condition. BOG was calculated based on numerical analysis verification results and the heat transfer performance was confirmed. In addition, the generated thermal stress and thermal deformation changes were observed by implementing the temperature distribution obtained through the thermal analysis in thermalstructure coupling analysis. Accordingly, the structural safety of a vacuum-insulated pipe was evaluated.

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“…Accordingly, many studies have been conducted for liquefied natural gas (LNG) transport and supply [1,2]. As LNG is liquefied at a temperature of -179, it is transported through pipes.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis and Experimental Verification Based on Design Parameter Variation of Vacuum-Insulated Pipe for Cryogenics

Lee¹,

Kim²,

Lee³

2016

Proceedings of the International Symposium on Mechanical Engineering and Material Science

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show abstract

“…Environmental regulations are being tightened, which in turn calls for the use of clean fuels that could minimize pollutant emissions. Even though many studies are being conducted in relation to clean fuels, in fact, many problems arise at the commercialization stage [1,2]. For this reason, natural gases are increasingly becoming necessary for energy production and demand, and research and development efforts are focused on liquefying natural gases at high pressure, and supplying and transferring those gases.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis Research and Experimental Verification of the Heat Leak of a Cryogenic Vacuum Jacket Valve

Lee¹,

Kim²,

Jeon³

2016

Proceedings of the International Symposium on Mechanical Engineering and Material Science

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The need for natural gases has recently been increasing for energy production and demand. Accordingly, many different studies are now being conducted on ways to supply liquefied natural gases (LNG) and on the valves that are used to supply those gases. Although there are various types of valves that are used at extremely low temperatures, vacuum jacket valves, which minimize the heat leak by using lean gases in the vacuum layer, are mostly used. In this regard, this study verified the results of a numerical analysis through thermal analysis and experiments on a vacuum jacket valve at extremely low temperatures (-179°C). Based on this data, a heat leak was calculated to evaluate thermal performance. In addition, a thermal-structural coupled field analysis was conducted in order to consider thermal stress and deformation caused by extremely low temperatures. Based on this analysis, the study aims to evaluate the structural stability of a vacuum jacket valve and provide the results as basic data.

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A Study on Durability due to the Model of Descending Life Line for Fire Fighting

Lee

Cho

2015

AJMAHS

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Structure Analysis and Design Optimization of Stiffeners in LNG Tanks

Cited by 8 publications

References 1 publication

Numerical Analysis and Experimental Verification Based on Design Parameter Variation of Vacuum-Insulated Pipe for Cryogenics

Numerical Analysis and Experimental Verification Based on Design Parameter Variation of Vacuum-Insulated Pipe for Cryogenics

Numerical Analysis Research and Experimental Verification of the Heat Leak of a Cryogenic Vacuum Jacket Valve

A Study on Durability due to the Model of Descending Life Line for Fire Fighting

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