DOI QR코드

DOI QR Code

Modeling of PEM Fuel Cell System-Sensitivity Analysis of System Efficiency with Different Main Operating Parameters of Automotive Fuel Cell System

PEM 연료전지 시스템 모델링-자동차용 연료전지 시스템의 주요 작동 변수 변경에 따른 시스템 효율 민감도 분석

  • KIM, HAN-SANG (Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology) ;
  • KANG, BYUNGGIL (Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology) ;
  • WON, KWONSANG (Department of Mechanical and Automotive Engineering, Seoul National University of Science and Technology)
  • 김한상 (서울과학기술대학교 기계.자동차공학과) ;
  • 강병길 (서울과학기술대학교 기계.자동차공학과) ;
  • 원권상 (서울과학기술대학교 기계.자동차공학과)
  • Received : 2019.08.18
  • Accepted : 2019.10.31
  • Published : 2019.10.31

Abstract

The operating conditions greatly impact the efficiency and performance of polymer electrolyte membrane (PEM) fuel cell systems and must be properly managed to ensure better performance and efficiency. In particular, small variations in operating conditions interact with each other and affect the performance and efficiency of PEM fuel cell systems. Thus, a systematic study is needed to understand how small changes in operating conditions affect the system performance and efficiency. In this paper, an automotive fuel cell system (including cell stack and balance of plant [BOP]) with a turbo-blower was modeled using MATLAB/Simulink platform and the sensitivity analyses of main operating parameters were performed using the developed system model. Effects of small variations in four main parameters (stack temperature, cathode air stoichiometry, cathode pressure, and cathode relative humidity) on the system efficiency were investigated. The results show that cathode pressure has the greatest potential impact on the sensitivity of fuel cell system efficiency. It is expected that this study can be used as a basic guidance to understand the importance of achieving accurate control of the fuel cell operating conditions for the robust operation of automotive PEM fuel cell systems.

References

  1. J. Larminie and A. Dicks, Fuel Cell Systems Explained, John Wiley & Sons, Ltd., UK. 2003.
  2. H. S. Kim, D. H. Lee, K. Min, and M. Kim, "Effect of Key Operating Parameters on the Efficiency of Two Types of PEM Fuel Cell Systems", J. of Mechanical Science and Technology, Vol. 19, No. 4, 2005, pp. 1018-1026, doi: https://doi.org/10.1007/BF02919185. https://doi.org/10.1007/BF02919185
  3. Y. Wang, K. S. Chen, J. Mishler, S. C. Cho, and X. C. Adroher, "A review of polymer electrolyte membrane fuel cells: Technology, applications, and needs on fundamental research", Applied Energy, Vol. 88, No. 4, 2011, pp. 981-1007, doi: https://doi.org/10.1016/j.apenergy.2010.09.030. https://doi.org/10.1016/j.apenergy.2010.09.030
  4. J. I. Pukrushpan, "Modeling and Control of Fuel Cell Systems and Fuel Processors", Ph. D Thesis, The University of Michigan, 2003. Retrieved from https://pdfs.semanticscholar.org/75f4/c71d3ac70d3688270e761f6f07786fd84b49.pdf.
  5. D. Cho and H. S. Kim, "A Study of the Effect of Compressor Performance Map on the Efficiency of High-pressure Operating PEMFC Systems in Automotive Applications", Trans. of the Korean Hydrogen and New Energy Society, Vol. 23, No. 6, 2012, pp. 604-611, doi: http://dx.doi.org/10.7316/KHNES.2013.24.5.393. https://doi.org/10.7316/KHNES.2012.23.6.604
  6. S. W. Ji, N. S. Myung, and T. S. Kim, "Analysis of operating characteristics of a polymer electrolyte membrane fuel cell coupled with an air supply system", J. of Mechanical Science and Technology, Vol. 25, No. 4, 2011, pp 945-955. doi: https://doi.org/10.1007/s12206-011-0138-0. https://doi.org/10.1007/s12206-011-0138-0
  7. J. M. Cunningham, M. A. Hoffman, and D. J. Friedman, "A Comparison of High-Pressure and Low-Pressure Operation of PEM Fuel Cell Systems", SAE Transactions, Vol. 110, 2001, pp. 464-470. Retrieved from https://www.jstor.org/stable/44724322?seq=1#page_scan_tab_contents.
  8. Y. Qin, Q. Du, M. Fan. Y. Chang, and Y. Yin, "Study on operating pressure effect on the performance of a proton exchange membrane fuel cell power system", Energy Conversion and Management, Vol. 142. 2017, pp. 357-365, doi: http://dx.doi.org/10.1016/j.enconman.2017.03.035. https://doi.org/10.1016/j.enconman.2017.03.035
  9. Q. Meyer, A. Himeur, S. Ashton, O. Curnick, R. Clague, T. Reisch, P. Adcock. P. R. Shearing, and D.J.L. Brett, "Systemlevel electro-thermal optimisation of air-cooled open-cathode polymer electrolyte fuel cells: Air blower parasitic load and schemes for dynamic operation", Int. Journal of Hydrogen Energy, Vol. 40. No. 46, 2015, pp. 16760-16766, doi: http://dx.doi.org/10.1016/j.ijhydene.2015.07.040. https://doi.org/10.1016/j.ijhydene.2015.07.040
  10. D. Zhao, L. Xu, Y. Huangfu, M. Dou, and J. Liu, "Semiphysical modeling and control of a centrifugal compressor for the air feeding of a PEM fuel cell", Energy Conversion and Management, Vol. 154. 2017, pp. 380-386, doi: https://doi.org/10.1016/j.enconman.2017.11.030. https://doi.org/10.1016/j.enconman.2017.11.030
  11. D. K. Kim, H. E. Min, I. M. Kong, M. K. Lee, C. H. Lee, M. S. Kim, and H. H. Song, "Parametric study on interaction of blower and back pressure control valve for a 80-kW class PEM fuel cell vehicle", Int. J. of Hydrogen Energy, Vol. 41. No. 39, 2016, pp. 17595-17615. doi: http://dx.doi.org/10.1016/j.ijhydene.2016.07.218. https://doi.org/10.1016/j.ijhydene.2016.07.218
  12. I. J. Kim, J. J. Lee, and H. S. Kim, "Study on the Characteristics of Low-pressure Automotive Polymer Electrolyte Membrane Fuel Cell System Efficiency with Blower Configuration", Trans. of the Korean Hydrogen and New Energy Society, Vol. 29, No. 2, 2018, pp. 181-189, doi: https://doi.org/10.7316/KHNES.2018.29.2.181. https://doi.org/10.7316/KHNES.2018.29.2.181