Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Thermal Analysis of a Liquid Hydrogen Vessel with Multi-Layer-Insulation and Vapor-Cooled Shield

다층단열재와 증기냉각쉴드를 사용한 액체수소 저장용기의 열해석

  • 정일권 (국민대학교 대학원) ;
  • 강병하 (국민대학교 기계.자동차공학부)
  • Published : 2005.09.15
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Abstract

Thermal analysis of cryogenic-capable vessels with insulations have been carried out to store liquid hydrogen($LH_2$). The combined insulations of MLI(Multi-Layer Insulation) and VCS(Vapor-Cooled Shield) under high vacuum are considered in the analysis for various volumes of vessels. Vapor-Cooled Shields(VCS) are installed at cylinder wall as well as disc side of the $LH_2$ vessels. The results indicate that optimal distribution of boiloff vapor from $LH_2$ vessel into two sides of VCS exists based on the evaporation loss. As the volume of $LH_2$ vessel is increased, mass flow rate of boiloff is increased while the evaporation loss per unit volume is decreased.

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References

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