Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Investigation of sloshing suppression and evaporation rate decrease in a liquid hydrogen tank with rib structures for automotive use

리브 구조를 갖는 차량용 액체수소 탱크 내 슬로싱 억제와 증발률 저감 효과에 대한 분석

  • Sihyeop Seok (School of Mechanical Engineering, Pusan National University) ;
  • Yeongjun Lee (School of Mechanical Engineering, Pusan National University) ;
  • Yongjin Jung (School of Mechanical Engineering, Pusan National University) ;
  • Hyeonseo Jung (School of Mechanical Engineering, Pusan National University) ;
  • Changyong Lee (School of Mechanical Engineering, Pusan National University) ;
  • Jinyul Hwang (School of Mechanical Engineering, Pusan National University)
  • Received : 2025.04.08
  • Accepted : 2025.05.07
  • Published : 2025.05.31
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Abstract

In liquid hydrogen (LH2) fuel tanks, sloshing induced by driving conditions increases LH2 evaporation, reducing storage efficiency. This study conducts numerical simulations to investigate sloshing-induced evaporation in an LH2 tank subjected to constant wall heat flux. We observe that sloshing leads to the formation of a high-temperature area near the tank's side walls, accompanied by the development of an LH2 film. This thin LH2 film maintains direct contact with the heated walls during sloshing, causing significant evaporation. To suppress the formation of the LH2 film, rib structures are installed on both side walls. These rib structures reduce the flow length of the LH2 film along the wall by 31.8%, thereby decreasing the peak evaporation rate by 30.9%. Consequently, cumulative evaporation over a 20-second period is reduced by 10.3%. These results demonstrate that integrating rib structures into liquid hydrogen fuel tanks effectively mitigates sloshing-induced evaporation.

Keywords

Acknowledgement

이 과제는 부산대학교 기본연구지원사업(2년)에 의하여 연구되었음.

References

  1. Bouckaert, S., Pales, A. F., Mcglade, C., Remme, U., Wanner, B., Varro, L., D'ambrosio, D. & Spencer, T. 2021 Net zero by 2050: A roadmap for the global energy sector.
  2. Reda, B., Elzamar, A. A., Alfazzani, S. & Ezzat, S. M. 2024 Green hydrogen as a source of renewable energy: a step towards sustainability, an overview Environment, Development and Sustainability, 1-21.
  3. Corbo, P., Migliardini, F., Veneri, O. & Veneri, O. 2011 Hydrogen as future energy carrier Hydrogen fuel cells for road vehicles, 33-70.
  4. Park, Y., Choe, S., Han, D., Heo, G. & Jung, S. P. 2024 Underground Hydrogen Storage: Comparison of High-pressure Hydrogen, Liquid Hydrogen, and Ammonia J Korean Soc Environ Eng 46, 613-28.
  5. 산업통상자원부. 2021. 제 1 차 수소경제 이행 기본계획. 산업통상자원부.
  6. Khurana, T. K., Prasad, B., Ramamurthi, K. & Murthy, S. S. 2006 Thermal stratification in ribbed liquid hydrogen storage tanks International journal of hydrogen energy 31, 2299-309. https://doi.org/10.1016/j.ijhydene.2006.02.032
  7. Fu, J., Sunden, B. & Chen, X. 2014 Influence of wall ribs on the thermal stratification and self-pressurization in a cryogenic liquid tank Applied Thermal Engineering 73, 1421-31. https://doi.org/10.1016/j.applthermaleng.2014.05.086
  8. Kim, B., Kim, H., Park, Y., Im, M., Park, S. & Hwang, J. 2024 Design of Sidewall Ribs for Suppressing Vortex Structures and Reducing Evaporation Rate in Liquid Hydrogen Storage Tank Journal of the Korean Society of Visualization 22, 11-19. https://doi.org/10.5407/JKSV.2024.22.2.011
  9. Maekawa, K., Takeda, M., Miyake, Y. & Kumakura, H. 2018 Sloshing measurements inside a liquid hydrogen tank with external-heating-type MGB2 level sensors during marine transportation by the training ship Fukae-Maru Sensors 18, 3694. https://doi.org/10.3390/s18113694
  10. Liu, Z., Feng, Y., Lei, G. & Li, Y. 2019 Fluid sloshing dynamic performance in a liquid hydrogen tank International Journal of Hydrogen Energy 44, 13885-94. https://doi.org/10.1016/j.ijhydene.2019.04.014
  11. Moran, M. E., Mcnelis, N. B., Kudlac, M. T., Haberbusch, M. S. & Satornino, G. A. Joint Propulsion Conference 1994.
  12. Roh, S. E. & Son, G. 2012 Numerical investigation of heat transfer in the LNG storage tank with a sloshing condition Journal of Computational Fluids Engineering, 10-15.
  13. Lee, C. & Hwang, J. 2025 Numerical experiment on the effect of a number of baffles on evaporation rate in a liquid hydrogen tank. Journal of Mechanical Science and Technology. https://doi.org/10.1007/s12206-025-0431-y
  14. Lee, W. H. 1980 A pressure iteration scheme for two-phase flow modelling Multiphase transport fundamentals, reactor safety, applications 1, 407-31.
  15. Holladay, J. D., Keller, J. O., & Simmons, R. A. 1991 Heat transfer analysis of multilayer insulation systems for cryogenic storage. NASA Technical Memorandum 103844.
  16. Sellers, C., Tomsik, T., & Lytle, J. 2021 Cryogenic boil-off heat transfer results from NASA's SHIIVER project. NASA/TM-20210019122.
  17. Park, S. & Hwang, J. 2023 Analysis of droplet formation under sloshing phenomena in liquid fuel tank Journal of the Korean Society of Visualization 21, 102-10. https://doi.org/10.5407/JKSV.2023.21.2.102