Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Diffusion Range and Pool Formation in the Leakage of Liquid Hydrogen Storage Tank Using CFD Tools

  • Kim, Soohyeon (Institute of Gas R & D, Korea Gas Safety Corporation) ;
  • Lee, Minkyung (Institute of Gas R & D, Korea Gas Safety Corporation) ;
  • Kim, Junghwan (Institute of Gas R & D, Korea Gas Safety Corporation) ;
  • Lee, Jaehun (Institute of Gas R & D, Korea Gas Safety Corporation)
  • Received : 2022.10.27
  • Accepted : 2022.11.10
  • Published : 2022.12.10
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Abstract

In liquid hydrogen storage tanks, tank damage or leakage in the surrounding pipes possess a major risk. Since these tanks store huge amounts of the fluid among all the liquid hydrogen process facilities, there is a high risk of leakage-related accidents. Therefore, in this study, we conducted a risk assessment of liquid hydrogen leakage for a grid-type liquid hydrogen storage tank (lattice-type pressure vessel (LPV): 18 m3) that overcame the low space efficiency of the existing pressure vessel shape. Through a commercially developed three-dimensional computational fluid dynamics program, the geometry of the site, where the liquid hydrogen storage tank will be installed, was obtained and simulations of the leakage scenarios for each situation were performed. From the computational flow analysis results, the pool formation behavior in the event of liquid hydrogen leakage was identified, and the resulting damage range was predicted.

Keywords

Acknowledgement

This work is supported by the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Ministry of Land, Infrastructure, and Transport (Grant 19IHTP-B153609-03).

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