Flow Distribution and Pressure Drop in Different Layout Configurations with Z-Type Arrangement
Bipolar plates (BPs) are a key component in fuel cells, which supply fuel and oxidant to reactive sites, remove water and heat, collect current and provide support for the cells in the stack. BPs typically account for 60~85% of the weight and 20~60% of the total cost in a fuel cell stack. It is well-known that performance of a fuel cell is stable in relatively narrow window operational conditions of electrochemistry. A small non-uniformity of flow distribution may lead significant deviation of some channels from the narrow window. Non-uniform flow distribution leads non-uniform electrochemical reactions and causes critical issues of flooding, drying and hotspots. Flow field designs in BPs are central to ensure uniform flow distribution and low pressure drop and to tackle systematically these critical issues. In spite of all the industrial R & D efforts, the gas flow fields in BPs remain one of the most important issues. In this paper, the generalised and unified theory developed by Wang (Int. J. of Hydrogen Energy 2010; 35: 5498-550) was extended to different layout configurations with Z-type arrangement in flow field designs of BPs. The present generalised theory has unique capacities to compare directly, systematically and quantitatively different configurations, existing models and methodologies. The theory makes a step forward in flow field designs in BPs, and provides practical guideline and measures to ensure uniform flow distribution in various configurations of BPs. This type of rational yet tractable generalised theory can contribute to the shared goal of cutting the currently high cost of R & D of fuel cells and performance improvement for commercialisation of fuel cells, which is central to a fuel cell engineer’s “toolbox”.
Key words: Bipolar plate; Fuel cell stack; Flow distribution; Manifold; Parallel channels; Pressure drop
 Jeong, K.S., Oh, B.S. (2002). Fuel economy and life-cycle cost analysis of a fuel cell hybrid vehicle. J Power Sources, 105: 58-61.
 Li, X.G., Sabir, I. (2005). Review of bipolar plates in PEM fuel cells: Flow-field designs. Int J Hydrogen Energy, 30, 359 – 371.
de las Heras, N., Roberts E.P.L., Langton, R., Hodgson, D.R. (2009). A review of metal separator plate materials suitable for automotive PEM fuel cells. Energy Environ. Sci., 2, 206–214.
 Hamilton, P.J., Pollet, B.G., (2010). Polymer Electrolyte Membrane Fuel Cell (PEMFC) Flow Field Plate: Design, Materials and Characterisation, Fuel cells, 10 (4), 489–509.
 Anderson, R., Zhang, L., Ding, Y., Blanco, M., Bi, X., Wilkinson, D. P. (2010). A critical review of two-phase flow in gas flow channels of proton exchange membrane fuel cells. Journal of Power Sources, 195 (15), 4531-4553.
 Barbir F., Gorgun, H., Wang, X. (2005). Relationship between pressure drop and cell resistance as a diagnostic tool for PEM fuel cells. Journal of Power Sources, 141, 96–101.
 Kumbur, E.C., Sharp, K.V., Mench, M.M. (2006). Liquid droplet behavior and instability in a polymer electrolyte fuel cell flow channel. Journal of Power Sources, 161, 333–345.
 Reiser CA. (1989). Water and heat management in solid polymer fuel cell stack. US Patent No. 4826742.
 Hsieh S.S., Huang, Y.J, Her, B.S. (2009). Pressure drop on water accumulation distribution for a micro PEM fuel cell with different flow field plates. International Journal of Heat and Mass Transfer, 52, 5657–5659.
 Fletcher N.J., Chow, C.Y., Pow, E.G., Wozniczka, B., Voss, H.H., Hornburg, G., Wilkinson D.P., (1995). Electrochemical fuel cell stack with concurrently flowing coolant and oxidant streams. Canadian Patent No. 2192170.
 Cavalca C., Homeyer S.T., Walsworth E. (1997). Flow field plate for use in a proton exchange membrane fuel cell. US Patent No. 5686199.
 Watkins, D.S., Dircks, K.W., Epp, D.G. (1992). Fuel cell fluid flow field plate. US Patent No. 5,108,849.
 Faghri, A., Guo, Z. (2005). Challenges and Opportunities of Thermal Management Issues Related to Fuel Cell Technology and Modelling. Int J Heat and Mass Transfer, 48(19-20), 3891-3920.
 Lobato, J., Canizares, P., Rodrigo, M.A., Pinar, F.J., Mena, E., Ubeda, D. (2010). Three-dimensional model of a 50 cm2 high temperature PEM fuel cell. Study of the flow channel geometry influence. Int J Hydrogen Energy, 35, 5510 – 5520.
 Chen, C.H., Jung, S.P., Yen, S.C. (2007). Flow distribution in the manifold of PEM fuel cell stack. Journal of Power Sources, 173, 249–263.
 Nie, J., Chen, Y. (2010). Numerical modeling of three-dimensional two-phase gas–liquid flow in the flow field plate of a PEM electrolysis cell. Int J Hydrogen Energy, 35, 3183 – 3197.
 Wang, J.Y. (2008). Pressure drop and flow distribution in parallel-channel of configurations of fuel cell stacks: U-type arrangement. Int. J. of Hydrogen Energy, 33(21), 6339-6350.
 Wang, J.Y. (2010). Pressure drop and flow distribution in parallel-channel of configurations of fuel cell stacks: Z-type arrangement. Int. J. of Hydrogen Energy, 35, 5498-550.
 Wang, J.Y., Wang, H.L., Flow field designs of bipolar plates in PEM fuel cells: theory and applications, submitted to Fuel Cells.
 Bajura, RA. (1971). A model for flow distribution in manifolds. J. Engineering for Power, Transaction of ASME, 93, 7-12.
 Bajura R.A., Jones Jr. E.H. 1976Flow distribution manifolds. J. Fluid Eng., Transaction of ASME, 98, 654–65.
 Bassiouny, M.K., Martin, H. (1984). Flow distribution and pressure drop in plate heat exchanges. Part II. Z-Type arrangement. Chem. Eng. Sci., 39 (4), 7001–704.
 Kee, R.J., Korada, P., Walters, K., Pavol, M. (2002). A generalized model of the flow distribution in channel networks of planar fuel cells. J Power Sources; 109: 148-159.
 Maharudrayya, S., Jayanti, S., Deshpande, A.P. (2005). Flow distribution and pressure drop in parallel-channel configurations of planar fuel cells. J Power Sources, 144, 94-106.
 Chang, P.A.C., St-Pierre, J., Stumper, J., Wetton B. (2006). Flow distribution in proton exchange membrane fuel cell stacks. J Power Sources, 162, 340-355.
 Koh, J.H., Seo, H.K., Lee, C.G., Yoo, Y.S., Lim, H.C. (2003). Pressure and flow distribution in internal gas manifolds of a fuel cell stack. J Power Sources, 115, 54-65.
 Yao K.Z., Karan K., McAuley K.B., Oosthuizen P., Peppley B., Xie T. (2004). A review of mathematical models for hydrogen and direct methanol polymer electrolyte membrane fuel cells. Fuel Cells, 4(1-2): 3-29.
 Wang, J.Y. (2011). Theory of flow distribution in manifolds. Chemical Engineering J, 168, 1331-1345.
 Pigford, R.L., Miron, A.M. (1983). Flow distribution in piping manifolds. Ind. Eng. Chem. Fundam. 22, 463-471. Wang, J.Y. (2009). Comments on “Flow distribution in U-type layers or stacks of planar fuel cells”, by W.H. Huang and Q.S. Zhu [J. of Power Sources, 2008; 178: 353-362]. J. of Power Sources, 190(2), 511-512.
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