Chapter 5 Conclusions and Future Works
5.2 Future works
As to the future extension, current model will incorporate thermal stress analysis to study the influence of temperature variation in the membrane discussed before. It would also be necessary to develop a transient model to
study the liquid water transport with different flow patterns inside a PEMFC which has a more complicated manipulation. This is because water management, to control the water transport to avoid dehydration and flooding, is another critical issue to improve performance of PEMFC. Therefore, an understanding of flow mechanism of water transport is required for the proper flow pattern design and the optimization of operating conditions and may discover some new phenomena in PEMFC. In addition, it would be interesting to apply current flow patterns to micro PEMFC. Understanding the influences of bend angle and width on performance of micro PEMFC is indispensable for flow pattern development to establish universal heuristics and Peclet number correlations in the design of flow pattern and cell stacks.
References
1. H. L. Trent and R. Somerville, Historical Overview of Climate Change Science, Technical Report, 2007.
2. J. Larminie and A. Dicks, Fuel Cell Systems Explained, second ed., Wiley, 2005.
3. R. O’Hayre, S. W. Cha, W. Colella and F. B. Prinz, Fuel Cell Fundamentals, Wiley, New York, 2006.
4. D. M. Bernardi, and M. W. Verbrugge, Mathematical Model of a Gas Diffusion Electrode Bounded to a Polymer Electrolyte, J. Electrochemical Society, Vol. 37, pp. 1151-1163, 1991.
5. T. E. Springer, T. A. Zawodzinski and S. Gottesfeld, Polymer Electrolyte Fuel Cell Model, J. Electrochemical Society, Vol. 138, No 8, Aug. 1991.
6. D. M. Bernardi, and M. W. Verbrugge, Mathematical Model of a Solid Polymer Electrolyte Fuel Cell, J. Electrochemical Society, Vol. 139, pp.
2477-2490, 1992.
7. C.Y. Wang and P. Cheng, Multiphase Flow and Heat Transfer in Porous Media, Advances in heat transfer, Vol. 30, pp.93-196, 1997.
8. W. S. He, J. S. Yi and T. V. Nguyen, Two-phase flow model of the cathode of PEM fuel cell using interdigitated flow fields, AIChE Journal, Vol. 46, pp. 2053-2064, 2000.
9. S. Um, C. Y. Wang and K. S. Chen, Computational fluid dynamics modeling of proton exchange membrane fuel cells, J. Electrochem. Soc., Vol. 12, pp. 4485-4493, 2000.
10. Z. H. Wang, C. Y. Wang and K.S. Chen, “Two-Phase Flow and Transport in the Air Cathode of Proton Exchange Membrane Fuel Cells”, J. Power
Sources, Vol. 94, pp. 40-50, 2001.
11. S. Mazumder and J. V. Cole, Rigorous 3-D mathematical modeling of PEM fuel cells I. Model Predictions without liquid water transport, J.
Electrochem. Soc., Vol. 150, pp. A1503-A1509, 2003.
12. S. Mazumder and J. V. Cole, Rigorous 3-D mathematical modeling of PEM fuel cells II. Model Predictions with Liquid Water Transport, J. Electrochem.
Soc., Vol. 150, pp. A1510-A1517, 2003.
13. E. Hontañón, M. J. Escudero, C. Bautista, P. L. García-Ybarra and L. Daza, Optimisation of flow-field in polymer electrolyte membrane fuel cells using computational fluid dynamics techniques, J. Power Sources, Vol. 86, pp.
363-368, 2000.
14. J. Scholta, G. Escher, W. Zhang, L. Küppers, L. Jörissen and W. Lehnert, Investigation on the influence of channel geometries on PEMFC performance, J. Power Sources, Vol. 155, pp. 66-71, 2006.
15. M. S. Chiang and H. S. Chu, Numerical investigation of transport component design effect on a proton exchange membrane fuel cell, J. Power Sources, Vol. 160, pp. 340-352, 2006.
16. S. Shimpalee and J. W. Van Zee, Numerical studies on rib & channel dimension of flow-field on PEMFC performance, Int. J. Hydrog. Energy, Vol. 32, pp. 842-856, 2007.
17. S. Fell, J. Roth, B. Steidle, D. Baker, W. Gu, M. Mathias and M.
Schoeneweiss, VDI Berichte, pp. 579-600, 2002.
18. S. Shimpalee, U. Beuscher and J. W. Van Zee, Investigation of gas diffusion media inside PEMFC using CFD modeling, J. Power Sources, Vol. 163, pp.
480-489, 2006.
19. L. Matamoros and D. Brüggemann, Numerical study on PEMFC’s
geometrical parameters under different humidifying conditions, J. Power Sources, Vol. 172, pp. 253-264, 2007.
20. J. Zhang, Y. Tang, C. Song, Z. Xia, H. Li, H. Wang, J. Zhang, PEM fuel cell relative humidity (RH) and its effect on performance at high temperatures, Electrochim. Acta, Vol. 53, pp. 5315-5321, 2008.
21. M. Coppo, N. P. Siegal and M. R. von Spakovsky, On the influence of temperature on PEM fuel cell operation, J. Power Sources, Vol. 159, 560-569, 2006.
22. M. A. R. S. Al-Baghdadi, A CFD study of hygro-thermal stresses distribution in PEM fuel cell during regular cell operation, Renew. Energy, pp. 1-9, 2008.
23. J. Soler, E. Hontañón, L. Daza, Ekectride permeability and flow-field configuration: influence on the performance of a PEMFC, J. Power Sources, Vol. 118, pp. 172-178, 2003.
24. P. H. Oosthuizen, L. Sun, K. B. McAuley, The effct of channel-to-channel gas crossover on the pressure and temperature distribution in PEM fuwl cell flow plates, J. Appl. Thermal Engrg., Vol. 25, pp. 1083-1096, 2005.
25. S. Shimpalee, S. Greenway and J. W. Van Zee, The impact of channel length on PEMFC flow-field design, J. Power Sources, Vol. 160, pp.
398-406, 2006.
26. S. Karvonen, T. Hottinen, J. Saarinen and O. Himanen, Modeling of flow field in polymer electrolyte membrane fuel cell, J. Power Sources,Vol. 161, pp. 876-884, 2006.
27. L. Sun, P. H. Oosthuizen and K. B. McAuley, A numerical study of channel-to-channel flow cross-over through the gas diffusion layer in a PEM-fuel-cell flow system using a serpentine channel with a trapezoidal
cross-sectional shape, Int. J. Therm. Sci., Vol. 45, pp. 1021-1026, 2006.
28. J. Park and X. Li, An experimental and numerical investigation on the cross flow through gas diffusion layer in a PEM fuel cell with a serpentine flow channel, J. Power Sources, Vol. 163, pp. 853-863, 2007.
29. D. H. Jeon, S. Greenway, S. Shimpalee and J. W. Van Zee, The effect of serpentine flow-field designs on PEM fuel cell performance, Int. J. Hydrog.
Energy, Vol. 33, pp. 1052-1066, 2008.
30. F. P. Incropera, D. P. Dewitt, T. L. Bergman and A. S. Lavine, Fundamentals of Heat and Mass Transfer, sixth ed., Wiley, 2007.
31. C. R. Wilke, A Viscosity Equation for Gas Mixtures, J. Chem. Phys., Vol.
18, pp. 517-519, 1950.
32. J. O. Hirschfelder, C. F. Curtiss and R. B. Bird, Molecular Theory of Gases and Liquids, Wiley, New York, 1954.
33. M. Khandelwal and M. M. Mench, Direct measurement of through-plane thermal conductivity and contact resistance in fuel cell materials, J. Power Sources, Vol. 161, pp. 1106-1115, 2006.
34. S. Um and C. Y. Wang, Three-dimensional analysis of transport and electrochemical reactions in polymer electrolyte fuel cells, J. Power Sources, Vol. 125, pp. 40-51, 2004.
35. CFD-ACE+ V2007 User Manual, ESI CFD Inc.
36. J. P. Van Doormal and G. D. Raithby, Enhancements of the SIMPLE method for predicting incompressible fluid flows, Numer. Heat Transfer, pp.
147-163, 1984.
37. M. G. Santarelli and M. F. Torchio, Experimental analysis of the effects of the operating variables on the performance of a single PEMFC, Energy Convers Manage, Vol. 48, pp. 40-51, 2007.
38. A. D. Le, B. Zhou, Fundamental understanding of liquid water effects on the performance of a PEMFC with serpentine-parallel channels, Electrochim. Acta, Vol. 54, pp. 2137-2154, 2009.
39. X. Liu, H. Guo, F. Ye and C. F. Ma, Water flooding and pressure drop characteristics in flow channels of proton exchange membrane fuel cells, Electrchim. Acta, Vol. 52, pp. 3607-3614, 2007.
40. E. Arato, M. Pinna and P. Costa, Gas-phase mass-transfer resistance at PEMFC electrodes Part2. Effects of the flow geometry and the related pressure field, J. Power Sources, Vol. 158, pp. 206-212, 2006.