Browse > Article
http://dx.doi.org/10.5762/KAIS.2021.22.1.37

A Study of Fluid Structure Interaction Analysis and Coating Characteristics of a Two-stage Pressure Reduction Hydrogen Regulator  

Song, Jae-Wook (Dep. of Mechanical Engineering, Korea University of Technology and Education)
KIM, Seung-Mo (Dep. of Mechanical Engineering, Korea University of Technology and Education)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.22, no.1, 2021 , pp. 37-44 More about this Journal
Abstract
In this study, shape design and material selection were carried out for a two-stage pressure-reducing regulator to compensate for the shortcomings of a one-stage mechanical decompression regulator. The shape of the contact surface of the depressurization unit was considered, material was selected, and the shape was designed to compensate for the pulsation and slow response through the two-stage decompression and to solve the problem of high pressure deviation. In terms of airtightness, the deformation amount of TPU showed a small amount of displacement of up to 15.82%. Considering the fact that it is applicable to various hydrogen fuel supply systems by securing universality by applying electronic solenoids to the second pressure reduction, magnetic materials were selected. The hydrogen embrittlement and corrosion resistance were evaluated to verify the plating process. Surface corrosion did not occur in only the case of Cr plating. The elongation during the corrosion process was compared using a tensile test, and there was a difference within 2%.
Keywords
FCEV; Hydrogen Brittleness; 2-stage Pressure Regulator; Gas Corrosion; FSI;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Hwang, K. H., Kim, R. W., Kim, D. Y., Kim, C. M., Kim, S. R., "Evaluation of Pressure Regulator Spring Characteristics of Hydrogen Storage", Korean Society for Precision Engineering Autumn Conf., 135, 2019
2 Drell, I. L., Belles, F. E., "Survey of hydrogen combustion properties", NACA, 1958
3 Kwon, O. J., Jo, H. J., Chung, H. H., Myong, K. J., "Analysis and Modeling of Hydrogen Sales at Hydrogen Filling Stations", KSAE, Vol.27, No.2, pp. 93-100, 2019. DOI: https://doi.org/10.7467/KSAE.2019.27.2.093   DOI
4 Ehret, O., & Bonhoff, K., "Hydrogen as a fuel and energy storage: Success factors for the German Energiewende", International Journal of Hydrogen Energy, Vol.40, No.15, pp. 5526-5533, 2015. DOI: https://doi.org/10.1016/j.ijhydene.2015.01.176   DOI
5 Song, J. W., Jeon, W. J., Kim, S. M., "Flow-Structure interaction 2 Stage Pressure Reduction Hydrogen Regulator", Korean Society of Manufacturing Technology Engineers Autumn Conf., pp. 189., 2019
6 Jo, N. K., Moon, S. J., Nam, C. W., Lee, H. K., Jeon, W. J., "Numerical Study on Internal Flow Analysis of High-pressure Gas Regulator", KSAE Annual Autumn Conf., pp.276, 2017.
7 Hwang, E. H., Seong, H. G., Kim, S. J., "Effect of Carbon Contents on Corrosion and Hydrogen Diffusion Behaviors of Ultra-Strong Steels for Automotive Applications", Korean Journal of Metals and Materials, Vol.56, No.8, pp. 570-579, 2018. DOI: https://dx.doi.org/10.3365/KJMM.2018.56.8.570   DOI
8 Yang, W. S., Seo, J. W., Ahn, S. H., "A Study on Hydrogen Automotive Steel Sheets", Corrosion Science and Technology, Vol.17, No.4, 193-201, 2018. DOI: https://doi.org/10.14773/cst.2018.17.4.193   DOI
9 B. Choudhary, J. Christopher., "Stage-II tensile work hardening behaviour of type 316L (N) austenitic stainless steel", Materials Science and Engineering: A., Vol. 651, pp.486-489, 2016. DOI: https://doi.org/10.1016/j.msea.2015.11.001   DOI
10 Park, H. J., Gi, S. K., Jang, S. G., Do, M. J., "High Pressure Check Valve Design for Prevention of Leakage Using FEM", KSPE Spring Conf., pp. 988-989, 2017.
11 KS, "Gas cylinders-Compatibility of cylinder and valve materials with gas contents-Part 1: Metallic materials", KS B ISO 11114-1:2012, Korea, 2002.
12 Son, W. S., Song, J. W., Jeon, W. J., Kim, S. M., "FEA(Finite Element Analysis) Study for Electronic Hydrogen Regulator of Confidentiality Improvement", Korea Academia-Industrial cooperation Society, Vol.20, No.9, pp.175-181, 2019. DOI: https://doi.org/10.5762/KAIS.2019.20.9.175   DOI
13 Wilcox, D. C., "Turbulence modeling for CFD", CA: DCW industries, La Canada, 1998.
14 Choi, I. H., Baek, S. H., Lee, T. H., Jhang, K. Y., "Evaluation of Fatigue Degradation in SUS316L Using Nonlinear Ultrasonics", Korean Society of Mechanical Engineers A, Vol.34, No.2, pp.145-152, 2010. DOI: https://doi.org/10.3795/ksme-a.2010.34.2.145   DOI
15 Kim, T. W., Park, T. S., Jung, Y. S., Kang, Y. J., Lee, T. H., "Dynamics Study with DFT(Density Functional Theory) Calculation for Metal with a few Peripheral Electrons", Transactions of the Korean hydrogen and new energy society, Vol.25, No.3, pp. 234-239, 2014. DOI: https://doi.org/10.7316/KHNES.2014.25.3.234   DOI
16 Kim, S. S., Han, J. G., "A Study on the enhancement of wear resistance and corrosion resistance of CrNx for a replacement for electroplated Cr coating", Korean journal of metal and materials, Vol.37, No.3, pp.314-320, 1999.
17 KS, "Environmental testing Part 2-60: Tests Test Ke: Flowing mixed gas corrosion test", KS C IEC60068-2-60:2015, Korea, 2010.
18 KS, "TEST PIECES FOR TENSILE TEST FOR METALLIC MATERIALS", KS B 0801:2007, Korea, 1975.