0
Research Papers

Performance Analysis of a Direct Methanol Fuel Cell Stack With Bipolar Plate Incorporated With Innovative Flow-Field Combination

[+] Author and Article Information
Chia-Chieh Shen, Feng-Bor Weng, Chia-Chen Yeh, Chih-Hung Lee, Yi-Ju Su

Fuel Cell Center,
Department of Mechanical Engineering,
Yuan Ze University,
Taoyuan 320, Taiwan

Guo-Bin Jung

Fuel Cell Center,
Department of Mechanical Engineering,
Yuan Ze University,
Taoyuan 320, Taiwan
e-mail: guobin@saturn.yzu.edu.tw

1Corresponding author.

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY. Manuscript received August 31, 2012; final manuscript received December 2, 2013; published online February 11, 2014. Editor: Nigel M. Sammes.

J. Fuel Cell Sci. Technol 11(3), 031008 (Feb 11, 2014) (6 pages) Paper No: FC-12-1086; doi: 10.1115/1.4026523 History: Received August 31, 2012; Revised December 02, 2013

Increasing interest in utilizing direct methanol fuel cells for portable applications has prompted the need for understanding of their operating characteristics. Approximately 80% of a direct methanol fuel cell stack's volume and weight arise from the bipolar plates. The bipolar plates have grooved anode and cathode flow fields, and have a critical influence on the cell stack performance and stability. However, there is little published data regarding design expansion from single cell to stack, and literature regarding the fuel/oxidant distribution in each cell is especially scant. Hence, this topic is the subject of the present study, which reports the design of a complete direct methanol fuel cell consisting of five single cells including a graphite bipolar plate, as well as an innovative anode and cathode flow channel design. By observing variations in operating parameters, such as applied load and the flow of methanol solution and air, the impact of each parameter on the output performance and stability of the stack was investigated.

FIGURES IN THIS ARTICLE
<>
Copyright © 2014 by ASME
Your Session has timed out. Please sign back in to continue.

References

Seo, S. H., and Lee, C. S., 2010, “A Study on the Overall Efficiency of Direct Methanol Fuel Cell by Methanol Crossover Current,” Appl. Energy, 87(8), pp. 2597–2604. [CrossRef]
Jung, E., Jung, U. H., Yang, T. H., Peak, D. H., Jung, D. H., and Kim, S. H., 2007, “Methanol Crossover Through PtRu/Nafion Composite Membrane for a Direct Methanol Fuel Cell,” Int. J. Hydrogen Energy, 32(7), pp. 903–907. [CrossRef]
Lo, M. Y., Liao, I. H., and Huang, C. C., 2007, “Key Issues in the Preparation of DMFC Electrocatalysts,” Int. J. Hydrogen Energy, 32(6), pp. 731–735. [CrossRef]
Kim, D., Lee, J., Lim, T. H., Oh, I., H.Ha HY, 2006, “Operational Characteristics of a 50 W DMFC Stack,” J. Power Sources, 155(2), pp. 203–212. [CrossRef]
Achmad, F., Kamarudin, S.-K., Daud, W.-R.-W., and Majlan, E.-H., 2011, “Passive Direct Methanol Fuel Cells for Portable Electronic Devices,” Appl. Energy, 88(5), pp. 1681–1689. [CrossRef]
Yuan, W., Tang, Y., Wang, Q., and Wan, Z., 2011, “Dominance Evaluation of Structural Factors in a Passive Air-Breathing Direct Methanol Fuel Cell Based on Orthogonal Array Analysis,” Appl. Energy, 88(5), pp. 1671–1680. [CrossRef]
Yoo, J. H., Choi, H. G., Nam, J. D., Lee, Y., Chung, C. H., Lee, E. S., Lee, J. K., and Cho, S. M., “Dynamic Behaviour of 5-W Direct Methanol Fuel Cell Stack,” J. Power Sources, 158(1), pp. 13–17. [CrossRef]
Prater, D. N., and Rusek, J. J., 2003, “Energy Density of a Methanol/Hydrogen-Peroxide Fuel Cell,” Appl. Energy, 74(1-2), pp. 135–140. [CrossRef]
Yang, H., Zhao, T. S., and Ye, Q., 2005, “Pressure Drop Behavior in the Anode Flow Field of Liquid Feed Direct Methanol Fuel Cells,” J. Power Sources, 142(1-2), pp. 117–124. [CrossRef]
Cha, H. C., Chen, C. Y., and Shiu, J. Y., 2009, “Investigation on the Durability of Direct Methanol Fuel Cells,” J. Power Sources, 192(2), pp. 451–456. [CrossRef]
Hwang, S. Y., Joh, H. I., Scibioh, M. A., Lee, S. Y., Kim, S. K., Lee, T. G., Ha, H. Y., “Impact of Cathode Channel Depth on Performance of Direct Methanol Fuel Cells,” J. Power Sources, 183(1), pp. 226–231. [CrossRef]
Liu, Y., Xie, X., Shang, Y., Li, R., Qi, L., Gu, J., and Mathur, V. K., 2007, “Power Characteristics and Fluid Transfer in 40 W Direct Methanol Fuel Cell Stack,” J. Power Sources, 164(1), pp. 322–327. [CrossRef]
Joh, H. I., Hwang, S. Y., Cho, J. H., Ha, T. J., Kim, S. K., Moon, S. H., and Ha, H. Y., “Development and Characteristics of a 400 W-Class Direct Methanol Fuel Cell Stack,” Int. J. Hydrogen Energy, 33(23), pp. 7153–7162. [CrossRef]
Park, Y. C., Peck, D. H., Kim, S. K., Lim, S., Jung, D. H., Jang, J. H., Lee, D. Y., 2010, “Dynamic Response and Long-Term Stability of a Small Direct Methanol Fuel Cell Stack,” J. Power Sources, 195, pp. 4080–4089. [CrossRef]
Jung, G. B., Su, A., Tu, C. H., Weng, F. B., Chan, S. H., 2007, “Innovative Flow-Field Combination Design on Direct Methanol Fuel Cell Performance,” ASME J. Fuel Cell Sci. Technol., 4(3), pp. 365–368. [CrossRef]
Jung, G. B., Tu, C. H., Su, A., Weng, F. B., and Chan, S. H., 2007, “Effects of Cathode Flow Fields on Direct Methanol Fuel Cell-Simulation Study,” J. Power Sources, 171(1), pp. 212–217. [CrossRef]
Oliveira, V. B., Rangel, C. M., and Pinto, A. M. F. R., 2010, “Effect of Anode and Cathode Flow Field Design on the Performance of a Direct Methanol Fuel Cell,” Chem. Eng. J., 157(1), pp. 174–180. [CrossRef]
Lu, Y., and Reddy, R. G., 2011, “Effect of Flow Fields on the Performance of Micro-Direct Methanol Fuel Cells,” Int. J. Hydrogen Energy, 36(1), pp. 822–829. [CrossRef]
Yang, H., and Zhao, T. S., 2005, “Effect of Anode Flow Field Design on the Performance of Liquid Feed Direct Methanol Fuel Cells,” Electrochim. Acta, 50(16-17), pp. 3243–3252. [CrossRef]
Dohle, H., Schmitz, H., Bewer, T., Mergel, J., and Stolten, D., 2002, “Development of a Compact 500 W Class Direct Methanol Fuel Cell,” J. Power Sources, 106(1-2), pp. 313–322. [CrossRef]
Chen, C. Y., Shiu, J. Y., and Lee, Y. S., 2006, “Development of a Small DMFC Bipolar Plate Stack for Portable Applications,” J. Power Sources, 159(2), pp. 1042–1047. [CrossRef]
Park, Y. C., Peck, D. H., Kim, S. K., Lim, S., Lee, D. Y., Ji, H., Jung, D. H., 2010, “Operation Characteristics of Portable Direct Methanol Fuel Cell Stack at Sub-Zero Temperatures Using Hydrocarbon Membrane and High Concentration Methanol,” Electrochim. Acta, 55(15), pp. 4512–4518. [CrossRef]
Oedegaard, A., and Hentschel, C., 2006, “Characterisation of a Portable DMFC Stack and a Methanol-Feeding Concept,” J. Power Sources, 158(1), pp. 177–187. [CrossRef]

Figures

Grahic Jump Location
Fig. 1

Anode flow channel-parallel (left). Cathode flow channel-serpentine (right).

Grahic Jump Location
Fig. 2

Magnified main flow channel and distribution channel (L). Main flow channel and distribution channel of the stainless steel obstructer (R).

Grahic Jump Location
Fig. 3

Schematic of the 5-cell stack used in this study (L). 5-cell stack used in this study (R).

Grahic Jump Location
Fig. 4

Performance curve of 2-cell, 3-cell, and 5-cell stacks under constant fuel flow (Tcell = 70 °C; cathode: 2X; anode: 2 M MeOH, 11 cm3 min−1)

Grahic Jump Location
Fig. 5

Performance curve of 2-cell, 3-cell, and 5-cell stacks under constant fuel flow (Tcell = 70 °C; cathode: 3X; anode: 2 M MeOH, 11 cm3 min−1)

Grahic Jump Location
Fig. 6

Effect of methanol solution flow rate on performance of the 5-cell stack (anode: 2 M MeOH; Tcell: 70 °C; cathode: 892.5 cm3 min−1 O2)

Grahic Jump Location
Fig. 7

Effect of air flow rate on performance of the 5-cell stack (anode: 2 M MeOH, flow rate: 15 cm3 min−1; Tcell: 70 °C)

Grahic Jump Location
Fig. 8

Long-term stability test of the 5-cell stack (anode: 2 M MeOH, flow rate: 15 cm3 min−1, air flow rate: 4462.5 cm3 min−1; Tcell: 70 °C)

Grahic Jump Location
Fig. 9

Effect of various load on voltage distribution of the 5-cell stack (anode: 2 M MeOH, flow rate: 15 cm3 min−1, air flow rate: 4462.5 cm3 min−1; Tcell: 70 °C)

Grahic Jump Location
Fig. 10

Effect of applied load from 0 to 10 A on stack resistance (anode: 2 M MeOH, flow rate: 15 cm3 min−1; Tcell: 70 °C, 0 s–50 s air: 2975 cm3 min−1)

Grahic Jump Location
Fig. 11

Effect of applied load from 0 to 10 A on stack resistance (anode: 2 M MeOH, flow rate: 15 cm3 min−1; Tcell: 70 °C, 0 s–20 s air: 2975 cm3 min−1 21 s–50 s air: 4462.5 cm3 min−1)

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In