QU Shunli, LI Yuxing, LI Zhenglong, WANG Wuchang, HU Qihui, ZHANG Huawei. Influencing factors for LNG roll-over in large-scale tanks[J]. Oil & Gas Storage and Transportation, 2015, 34(3): 258-261. DOI: 10.6047/j.issn.1000-8241.2015.03.007
Citation: QU Shunli, LI Yuxing, LI Zhenglong, WANG Wuchang, HU Qihui, ZHANG Huawei. Influencing factors for LNG roll-over in large-scale tanks[J]. Oil & Gas Storage and Transportation, 2015, 34(3): 258-261. DOI: 10.6047/j.issn.1000-8241.2015.03.007

Influencing factors for LNG roll-over in large-scale tanks

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  • Author Bio:

    QU Shunli, senior engineer, born in 1976, graduated from Beijing University of Chemical Technology, chemical engineering, in 1999, engaged in the design management and project management of chemical engineering, LNG terminal and LNG project. Tel: 18663736983, Email: 18663736983@163.com

  • Received Date: August 02, 2014
  • Revised Date: December 05, 2014
  • Available Online: August 20, 2023
  • Published Date: December 28, 2014
  • Studying on the liquefied natural gas (LNG) roll-over mechanism to accurately judge the LNG roll-over in storage tank according to the LNG storage status has great significance on the prevention of LNG roll-over. Roll-over model of LNG in storage tank is established, and FluentTM software is used to simulate the roll-over process in order to identify the influence of initial density difference, stratification level and tank capacity on the LNG roll-over. The simulation results show that the larger the initial density difference between stratified LNGs, the larger tank capacity, the sooner and more tense roll-over happens; conversely, since stratification height may increase the viscous force between adjacent stratified LNGs, the higher the stratification level in the tank, the more difficult the and longer the roll-over occurs. Through analyzing the influencing factors, LNG roll-over can be prevented comprehensively to ensure the tank safety.
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