Browse > Article
http://dx.doi.org/10.5762/KAIS.2020.21.2.66

Hydrogen Compressor Cycle Analysis for the Operating Pressure of 50 MPa and High Charging Capacity  

Song, Byung-Hee (Department of Mechanical Engineering, Graduate School, Hoseo University)
Myoung, No-Seuk (Department of Mechanical Engineering, Graduate School, Hoseo University)
Jang, Seon-Jun (Division of Mechanical Engineering, Hoseo University)
Kwon, Jeong-Tae (Division of Mechanical Engineering, Hoseo University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.2, 2020 , pp. 66-73 More about this Journal
Abstract
In the hydrogen compression cycle, which is currently being developed, hydrogen is compressed to a very high pressure using a compressor, and then stored and used in a high-pressure vessel. This shows that an increase in the temperature of hydrogen in the vessel due to a pressure rise during the filling process and the pressure fatigue due to the repeated cycle may cause problems in the reliability of the vessel. In this paper, for the entire processes in a 50 MPa hydrogen compression system, theoretical and numerical methods were conducted to analyze the following: the temperature increase of hydrogen in the vessel and the time required to reach thermal equilibrium with the surroundings, the change in temperature of hydrogen passing through the pressure reducing valve, and the required capacity of the heat exchanger for cooling the vessel. The results will be useful for the design and construction of hydrogen compression systems, such as hydrogen charging stations.
Keywords
Hydrogen; High Pressure Vessel; Compressor; Heat Exchanger; Pressure Reducing Valve;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 J. Wellnitz, "Hydrogen Storage Systems for Automotive Applications", International Journal of Sustainable Design, Vol.1, No.1, pp.93-109, 2008. DOI: https://doi.org/10.1504/ijsdes.2008.017059   DOI
2 K. M. Jang, S. H. Eom, I. C. Kim, S. C. Choi, C. K. Kim, "A Study on the Temperature Increasing of NGV cylinders during fast filling", The Korean Society of Mechanical Engineers, pp.482-485, Nov. 2012.
3 T. L. Bergman, A. S. Lavine, F. P. Incropera, D. P. Dewitt, "Fundamental of Heat and mass Transfer 7th ed", p.1048, Wiley, pp.8-10.
4 H. R. Lee, J. H. Ahn, H. Y. Kim, Y. G. Kim, "A Study on Temperature Characteristics of Automatic Valve for High Pressure Cylinder of FCV", Journal of the Korean Institute of Gas, Vol.22, No.1, pp.1-8, Feb. 2018. DOI: https://doi.org/10.7842/KIGAS.2017.22.1.1   DOI
5 S. Y. Kim, B. H. Kang, "Thermal Analysis of a Liquid Hydrogen Vessel", Journal of the Korean Hydrogen Energy Society, Vol.8, No.2, pp.57-65, Jun. 1997.
6 C. K. Kim, D. H. Kim, "A Safety Study on the Stress Characteristics of a Composite Pressure Cylinder for a Use of 70MPa Hydrogen Gas Vehicle", Journal of the Korean Society of Manufacturing Technology Engineers, Vol.21, No.1, pp.1-6, Feb. 2012. DOI: https://doi.org/10.7735/ksmte.2012.21.1.001   DOI