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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Temperature Changes of Cryogenic Fluid Flow in Pipe Bends due to Viscous Heating Effect

점성가열 효과에 의한 곡관 내 극저온 유체의 온도 변화

  • HYO LIM KANG (Department of Mechanical Engineering, Dong-A University) ;
  • IN JAE KO (Department of Mechanical Engineering, Dong-A University) ;
  • SEUNG HO HAN (Department of Mechanical Engineering, Dong-A University)
  • 강효림 (동아대학교 기계공학과) ;
  • 고인재 (동아대학교 기계공학과) ;
  • 한승호 (동아대학교 기계공학과)
  • Received : 2024.06.27
  • Accepted : 2024.08.20
  • Published : 2024.08.30
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Abstract

Liquid hydrogen, which operates in cryogenic environments has a density 800 times greater than gaseous hydrogen, making it advantageous for large-scale storage and transportation. However, continuous evaporation due to external heat intrusion and internal heat generation poses challenges. To mitigate heat conduction, various insulation materials are used. In pipe systems, viscous heating effects from turbulence and viscosity, especially in bends, cause heat generation. This study employs computational fluid dynamics (CFD) to analyze the impact of fluid velocity, pressure drop, inner diameter, and curvature radius of pipe bends on viscous heating. Using liquid nitrogen at 77 K as a working fluid, the CFD results showed that increased velocity and pressure drop along with smaller inner diameter and curvature radius enhanced viscous heating, raising fluid temperature.

Keywords

Acknowledgement

본 논문은 부산광역시 및 (재)부산테크노파크 BB21 plus 사업의 지원을 받았음.

References

  1. C. Kim, G. Kim, and H. Kim, "Analysis of domestic and foreign policy and technology trends for hydrogen industry development", Journal of Hydrogen and New Energy, Vol. 34, No. 2, 2023, pp. 122-131, doi: https://doi.org/10.7316/JHNE.2023.34.2.122. 
  2. H. S. Kwak, "Design of insulation for liquid hydrogen storage tank using heat transfer analysis", Transactions of the Korean Society of Mechanical Engineers - A, Vol. 47, No. 12, 2023, pp. 937-944, doi: https://doi.org/10.3795/KSME-A.2023.47.12.937. 
  3. S. J. Oh, K. S. Jeon, J. H. Yoon, and J. Choi, "A study on the thermal characteristics of the vacuum jacket valve for transporting liquefied hydrogen according to the degree of vacuum", Journal of Hydrogen and New Energy, Vol. 32, No. 6, 2021, pp. 585-591, doi: https://doi.org/10.7316/KHNES.2021.32.6.585. 
  4. H. S. Seo, Y. Lee, D. Kim, and C. Park, "Insulation performance and BOR of pressurized large-capacity liquid hydrogen storage tank", Journal of Hydrogen and New Energy, Vol. 34, No. 6, 2023, pp. 650-656, doi: https://doi.org/10.7316/JHNE.2023.34.6.650. 
  5. Y. H. Jeong, J. O. Lee, and T. J. Park, "CFD analysis of proportional control valve with viscous heating", Proceedings of KSPE 2013 Spring Conference, 2013, pp. 957-958. Retrieved from https://www.dbpia.co.kr/Journal/articleDetail?nodeId=NODE02207143. 
  6. S. J. Kim, S. H. Hyun, J. G. Hong, and I. H. Min , "The effect of the curvature of pipe on the thermal-flow field", Journal of Industrial Technology, Vol. 19, 1999, pp. 1-8. Retrieved from https://scholar.kyobobook.co.kr/article/detail/4010026270622.  10026270622
  7. A. Costa and G. Macedonio, "Viscous heating effects in fluids with temperature-dependent viscosity: triggering of secondary flows", Journal of Fluid Mechanics, Vol. 540, 2005, pp. 21-38. Retrieved from https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/abs/viscous-heating-effects-in-fluids-with-temperaturedependent-viscosity-triggering-of-secondary-flows/429202914648086E59D79296A7DF8849#. 
  8. N. D. Pope, J. Widdows, and M. D. Brinsley, "Estimation of bed shear stress using the turbulent kinetic energy approach-a comparison of annular flume and field data", Continental Shelf Research, Vol. 26, No. 8, 2006, pp. 959-970, doi: https://doi.org/10.1016/j.csr.2006.02.010. 
  9. A. Paglietti, "The laminar-to-turbulent transition in viscous fluid flow", Continuum Mechanics and Thermodynamics, Vol. 29, No. 2, 2017, pp. 611-623, doi: https://doi.org/10.48550/arXiv.1703.07223. 
  10. W. Wroblewski and D. Fraczek, "Heat transfer modelling in a rotating cavity using the SST k-ω turbulence model", Archives of Mechanics, Vol. 66, No. 5, 2014, pp. 343-364. Retrieved from https://am.ippt.pan.pl/am/article/view/v66p343. 
  11. F. Rutten, W. Schroder, and M. Meinke, "Large-eddy simulation of low frequency oscillations of the Dean vortices in turbulent pipe bend flows", Physics of Fluids, Vol. 17, No. 3, 2005, pp. 035107, doi: https://doi.org/10.1063/1.1852573. 
  12. J. H. Lee, "A study on the heat transfer characteristics according to the degree of vacuum for a double insulating pipe [Doctoral dissertation]", Busan: Dong-A University, 2017. 
  13. Y. Kato, K. Fujimoto, G. Guo, M. Kawaguchi, M. Kamigaki, M. Koutoku, H. Hongou, H. Yanagida, and Y. Ogata, "Heat transfer characteristics of turbulent flow in double-90°-bend pipes", Energies, Vol. 16, No. 21, 2023, pp. 7314, doi: https://doi.org/10.3390/en16217314. 
  14. F. Perez, S. Z. S. Al Ghafri, L. Gallagher, A. Siahvashi, Y. Ryu, S. Kim, S. G. Kim, M. L. Johns, and E. F. May, "Measurements of boil-off gas and stratification in cryogenic liquid nitrogen with implications for the storage and transport of liquefied natural gas", Energy, Vol. 222, 2021, pp. 119853, doi: https://doi.org/10.1016/j.energy.2021.119853.