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Analysis of Flow Performance Factors According to Extreme Temperature Conditions of Hydrogen Inflow of FCEV Charging System Check Valve

FCEV 충전 시스템 체크밸브의 수소 유입 극한 온도 조건에 따른 유동 성능 인자 분석

  • SEUNG HUN OH (Department of Mechanical Engineering, Kongju National University Graduate School) ;
  • HYUN KYU SUH (Division of Mechanical and Automotive Engineering, Kongju National University)
  • 오승훈 (국립공주대학교 일반대학원 기계공학과) ;
  • 서현규 (국립공주대학교 기계자동차공학부)
  • Received : 2023.08.28
  • Accepted : 2023.10.16
  • Published : 2023.10.30

Abstract

This study conducted numerical simulations with the purpose of analyzing the impact of variations in outlet pressure conditions under extreme temperature conditions on the fluid dynamics and performance of a check valve utilized in hydrogen refueling systems. Under the extreme temperature conditions, changes in outlet pressure conditions of the check valve were investigated to analyze velocity distributions, pressure distributions, and temperature distributions in the operational and connection regions. The analysis results indicated that changes in outlet pressure had a significant influence on the internal temperature variation of the check valve. Furthermore, due to density variations in the connection region caused by the cooling effect of excessively cooled hydrogen, a bias in the primary flow direction towards the lower part of the valve outlet was observed in the outlet area. Through a comparison of the results of the valve's inherent flow performance, represented by the flow coefficient, it was observed that when the pressure difference between the inlet and outlet was below 0.37 MPa, sufficient flow was not ensured.

Keywords

Acknowledgement

이 논문은 2022년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원을 받아 수행된 연구임(2022303004020C, 수소저장시스템의 멀티 및 싱글 제어가 가능한 제어기 기술개발).

References

  1. X. Li, C. J. Raorane, C. Xia, Y. Wu, T. K. N. Tran, and T. Khademi, "Latest approaches on green hydrogen as a potential source of renewable energy towards sustainable energy: spotlighting of recent innovations, challenges, and future insights", Fuel, Vol. 334, Pt. 1, 2023, pp. 126684, doi: https://doi.org/10.1016/j.fuel.2022.126684.
  2. X. Xu, Q. Zhou, and D. Yu, "The future of hydrogen energy: bio-hydrogen production technology", International Journal of Hydrogen Energy, Vol. 47, No. 79, 2022, pp. 33677-33698, doi: https://doi.org/10.1016/j.ijhydene.2022.07.261.
  3. C. Tarhan and M. A. Cil, "A study on hydrogen, the clean energy of the future: hydrogen storage methods", Journal of Energy Storage, Vol. 40, 2021, pp. 102676, doi: https://doi.org/10.1016/j.est.2021.102676.
  4. C. Zhang, X. Cao, P. Bujlo, B. Chen, X. Zhang, X. Sheng, and C. Liang, "Review on the safety analysis and protection strategies of fast filling hydrogen storage system for fuel cell vehicle application", Journal of Energy Storage, Vol. 45, 2022, pp. 103451, doi: https://doi.org/10.1016/j.est.2021.103451.
  5. D. H. Kim, S. M. Lee, C. H. Joe, S. K. Kang, and Y. S. Huh, "A study on the quantitative risk assessment of mobile hydrogen refueling station", Journal of Hydrogen and New Energy, Vol. 31, No. 6, 2020, pp. 605-613, doi: https://doi.org/10.7316/KHNES.2020.31.6.605.
  6. J. Kwon, S. Oh, J. Choi, and Y. Kim, "A numerical analysis study of hydrogen valve to flow characteristics by fluid temperature variation for mobile charging equipment", Journal of Hydrogen and New Energy, Vol. 33, No. 6, 2022, pp. 769-77 5, doi: https://doi.org/10.7316/KHNES.2022.33.6.769.
  7. D. W. Jung, J. Choi, and H. K. Suh, "Analysis of thermal flow characteristics according to the opening ratio of high-pressure valve for hydrogen storage tank", Journal of Hydrogen and New Energy, Vol. 33, No. 5, 2022, pp. 525-533, doi: https://doi.org/10.7316/KHNES.2022.33.5.525.
  8. J. Q. Li, Y. Chen, Y. B. Ma, J. T. Kwon, H. Xu, and J. C. Li, "A study on the Joule-Thomson effect of during filling hydrogen in high pressure tank", Case Studies in Thermal Engineering, Vol. 41, 2023, pp. 102678, doi: https://doi.org/10.1016/j.csite.2022.102678.
  9. SAE International, "Fueling protocols for light duty gaseous hydrogen surface vehicles (J2601_201612)", SAE International, 2016. Retrieved from https://www.sae.org/standards/content/j2601_201612/.
  10. G. Soave, "Equilibrium constants from a modified Redlich-Kwong equation of state", Chemical Engineering Science, Vol. 27, No. 6, 1972, pp. 1197-1203, doi: https://doi.org/10.1016/0009-2509(72)80096-4.
  11. B. H. Park, "Simulation of temperature behavior in hydrogen tank during refueling using cubic equations of state", Journal of Hydrogen and New Energy, Vol. 30, No. 5, 2019, pp. 385-394, doi: https://doi.org/10.7316/KHNES.2019.30.5.385.
  12. B. E. Launder and D. B. Spalding, "The numerical computation of turbulent flows", Computer Methods in Applied Mechanics and Engineering, Vol. 3, No. 2, 1974, pp. 269-289, doi: https://doi.org/10.1016/0045-7825(74)90029-2.
  13. M. S. Kim, J. H. Ryu, S. Y. Jung, S. W. Lee, and S. W. Choi, "Numerical analysis of discharge flow in type III hydrogen tank with different gas models", Journal of Hydrogen and New Energy, Vol. 31, No. 6, 2020, pp. 558-563, doi: https://doi.org/10.7316/KHNES.2020.31.6.558.
  14. International Society of Automation, "ANSI/ISA-75.02.01-2008 (IEC 60534-2-3 Mod) control valve capacity test procedures", International Socity of Automaion, 2008. Retrieved from https://www.isa.org/products/ansi-isa-75-02-01-2008-iec-60534-2-3-mod-control-v.
  15. J. H. Kim, "Design and performance evaluation of the high pressure low temperature hydrogen gas cylinder valve in sealing performacne system [Master's thesis]", Busan: Pusan National University; 2020.
  16. W. Kang, J. Shin, S. H. Lee, B. R. Yoon, and U. Baek, "Development of hydrogen flow field standard in hydrogen refueling station", Journal of Hydrogen and New Energy, Vol. 33, No. 6, 2022, pp. 684-691, doi: https://doi.org/10.7316/KHNES.2022.33.6.684.