Numerical Study the Performance of Microfluidic Fuel Cell with Porous Electrodes

Abstract:

Microfluidic fuel cell with flow-through porous electrodes is a new concept design which can significantly improve cell performance. In this paper, a three-dimensional numerical model which is based on mathematical formulations of laminar flow, species transport, and electrochemical reactions was developed to determine the effects of some important physical factors on cell performance. Moreover, this model also can be used to guide further optimization. The numerical simulation results obtained show that the cell performance is considered as functions of volumetric flow rate and porosity value. The peak power density increased almost linearly with the increase of flow rate when it less than 60µL min-1 .However, as the flow rate up to 60µL min-1, the cell performance becomes less sensitive to the increase of flow rate, and the corresponding maximum fuel utilization was achieved at the porosity value of 0.65.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 585-588
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.585
• Online since: February 2013
• Authors: Ming Feng Gao, Yu Xin Zuo, Ying Yu, Chun Cheng Zuo
• Keywords: Diffusion, Flow-Through, Fuel Utilization, Laminar Flow, Microfluidic Fuel Cell, Numerical Modeling

References

[1] Yi Zhang, Jian Lu; Shimano, S., Haoshen Zhou, Maeda, R. : Polytronic 2007. 6th International Conference, pp.91-95.

[2] Derek Dunn-Rankin, Elisângela Martins Leal, and David C. Walther.: Progress in Energy and Combustion Science, vol. 31(2005), pp.371-488.

[3] Jeffrey D. Morse : International Journal of Energy Research, vol. 31, pp.576-602.

[4] Eric R. Choban , Larry J. Markoski , Andrzej Wieckowski and Paul J. A. Kenis : Journal of Power Sources, vol. 128(2004), pp.54-60.

[5] Rosaria Ferrigno, Abraham D. Stroock, Thomas D. Clark, Michael Mayer, and George M. Whitesides:J. Am. Chem. Soc. vol. 124 (2002), p.12930–12931.

DOI: 10.1021/ja020812q

[6] Erik Kjeang, Raphaelle Michel, David A. Harrington, Ned Djilali, and David Sinton: J. Am. Chem. Soc., vol. 130 (2008), p.4000–4006.

DOI: 10.1021/ja078248c

[7] Erik Kjeang, Raphaelle Michel, David A. Harrington, David Sinton, Ned Djilali.: Electrochimica Acta, vol. 54, pp.698-705.

DOI: 10.1016/j.electacta.2008.07.009

[8] A.A. Shah M.J. Watt-Smith F.C. Walsh: Electrochimica Acta , vol(53), pp.8087-8100.

[9] Ryan O'Hayre, Cha Suk-won, Whitney Colella, Fritz B. Prinz: New Jersey: John Wiley & Sons, 2006, pp.54-55.