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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Study on the Effect of Evaporation of Liquid Hydrogen Tank Related to Horizontal Sinewave

액화수소 저장탱크의 수평요동이 증발 특성에 미치는 영향에 대한 연구

  • SEUNG JUN OH (Technical Center for High-Performance Valves, Dong-A University) ;
  • JUN YEONG KWON (Technical Center for High-Performance Valves, Dong-A University) ;
  • JEONG HWAN YOON (Technical Center for High-Performance Valves, Dong-A University)
  • 오승준 (동아대학교 고기능성밸브 기술지원센터) ;
  • 권준영 (동아대학교 고기능성밸브 기술지원센터) ;
  • 윤정환 (동아대학교 고기능성밸브 기술지원센터)
  • Received : 2023.02.03
  • Accepted : 2023.03.23
  • Published : 2023.04.28
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Abstract

Recently, a study on alternative and renewable energy is being conducted due to energy depletion and environmental problems. In particular, a hydrogen has the advantage of converting and storing the remaining energy into water-electrolyzed hydrogen through renewable energy generation. In general, due to reasons such as insulation problems, a study on high-pressure hydrogen storage tanks and related parts has recently been conducted. However, in the case of liquid hydrogen, the volume can be reduced by about 800 times or more compared to high-pressure hydrogen gas, so the study on this is needed as a technology that can increase energy density. In this study, the evaporation characteristics were analyzed under fixed heat flux conditions for liquid hydrogen storage tanks and the change in thermal stratification according to sloshing was analyzed. The heat flux condition was fixed at 250 W/m2 and the horizontal resonance frequency of the primary mode was applied to the storage tank. As a result, it was confirmed that the thermal stratification phenomenon decreased compared to the case where the slashing was not present due to forced convection when the slashing was present.

Keywords

Acknowledgement

본 논문은 2022년도 산업통상자원부의 재원으로 한국에너지기술평가원(KETEP)의 지원을 받아 수행된 연구입니다(2022730000005A).

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