DOI: https://doi.org/10.61435/ijred.2026.62153
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Optimization of energy efficiency and purge strategy of an open-cathode PEMFC stack with a dead-end anode configuration

1Department of Electrical and Mechatronics, Lac Hong University, Viet Nam

2Department of Mechanical Engineering, School of Engineering, King Mongkut’s Institute of Tecnhnology Ladkrabang, Bangkok, Thailand

Received: 14 Dec 2025; Revised: 16 Mar 2026; Accepted: 10 Apr 2026; Available online: 30 Apr 2026; Published: 1 Jul 2026.
Editor(s): H Hadiyanto
Open Access Copyright (c) 2026 The Author(s). Published by Centre of Biomass and Renewable Energy (CBIORE)
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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Abstract

Nowadays, proton exchange membrane fuel cells (PEMFCs) are acknowledged as promising energy solutions toward reaching net-zero emissions by 2050 due to their highlighted properties, such as high energy efficiency, high power density, low operating temperature, fast start-up, and zero emissions. To enhance electrochemical reactions and improve hydrogen utilization, the dead-end anode (DEA) configuration was employed to investigate the voltage and energy efficiency of an open-cathode PEMFC stack (100 W-20 cells) at optimal fan speed under varying purge intervals and operating current load levels with the step-by-step method. The hydrogen purge operation optimization was proposed by fitting experimental data and deriving the governing equation, considering voltage stability and hydrogen consumption. The results show that when the operating current and purge interval increased, the stack voltage decreased owing to impurities, water, and nitrogen buildup in the flow field anode channel. At optimal purge intervals of 540, 360, 280, and 60 s, the energy efficiency was achieved at 45.55%, 45.31%, 43.11%, and 35.05%, respectively. Compared to a previous study, these values represent increases of 25.22%, 12.91%, 9.15%, and 2.09% for operating currents of 1, 3, 5, and 8 A, respectively. These improvements were achieved by optimizing the fan speed, purge interval, and microcontroller unit power consumption. At a low load level of 1 A, the voltage decay rate decreased from 0.45 mV s−1 to 0.07 mV s−1, allowing for stable cell performance and higher hydrogen utilization at longer purging intervals. However, at higher load levels, both the voltage change of the stack and the voltage decay rate of the stack increased significantly compared to the 1 A case, with a steeper slope corresponding to higher current levels. This indicated that at higher reaction rates, the amount of water generated from the oxygen reduction reaction increases significantly. Consequently, the back diffusion phenomenon from the cathode to the anode, along with nitrogen buildup, leads to adverse conditions such as anode channel flooding and fuel starvation. This study provides meaningful insights into optimizing the energy efficiency of open-cathode PEMFC stacks across various load levels and purge operations.

Keywords: Dead-end anode; Energy efficiency; Purge strategy; Purge operations; Purge interval; Purge duration; Open-cathode PEMFC stack; Voltage stability; Hydrogen utilization.

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Section: Original Research Article
Language : EN
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  1. Abbou, S., Dillet, J., Spernjak, D., Mukundan, R., Borup, R. L., Maranzana, G., & Lottin, O. (2015). High potential excursions during PEM fuel cell operation with dead-ended anode. Journal of The Electrochemical Society, 162(10), F1212-F1220. https://doi.org/10.1149/2.0511510jes
  2. Abdelkareem, M. A., Elsaid, K., Wilberforce, T., Kamil, M., Sayed, E. T., & Olabi, A. (2021). Environmental aspects of fuel cells: A review. Science of The Total Environment, 752, 141803. https://doi.org/10.1016/j.scitotenv.2020.141803
  3. Ahluwalia, R. K., and X. Wang. (2007). Buildup of nitrogen in direct hydrogen polymer-electrolyte fuel cell stacks. Journal of Power Sources, 171(1), 63–71. https://doi.org/10.1016/j.jpowsour.2007.01.032
  4. Baik, Kyung-Don, and Min-Soo Kim. (2011). Characterization of nitrogen gas crossover through the membrane in proton-exchange membrane fuel cells. International Journal of Hydrogen Energy, 36(1), 732–739. https://doi.org/10.1016/j.ijhydene.2010.09.046
  5. Baik, Kyung-Don, and Min-Soo Kim. (2008). Characterization of Nitrogen Gas Crossover in PEM Fuel Cell Stacks. Proceedings of the KSME Conference, The Korean Society of Mechanical Engineers,. https://doi.org/10.3795/KSME-B.2009.33.3.207
  6. Barbir, F. (2012). PEM fuel cells: Theory and practice. Academic Press, ISBN: 9780123877109
  7. Baumgartner, W. R., Parz, P., Fraser, S. D., Wallnöfer, E., & Hacker, V. (2008). Polarization study of a PEMFC with four reference electrodes at hydrogen starvation conditions. Journal of Power Sources, 182(2), 413-421. https://doi.org/10.1016/j.jpowsour.2008.01.001
  8. Baz, F. B., Elzohary, R. M., Osman, S., Marzouk, S. A., & Ahmed, M. A (2024). Review of water management methods in proton exchange membrane fuel cells. Energy Conversion and Management, 302 , 118150. https://doi.org/10.1016/j.enconman.2024.118150
  9. Chen, J., Sun, L., Zhu, W., Pei, H., Xing, L., & Tu, Z. (2024). Influence of cathode air supply mode on the performance of an open cathode air-cooled proton exchange membrane fuel cell stack. Applied Thermal Engineering, 243, 122709. https://doi.org/10.1016/j.applthermaleng.2024.122709
  10. Chen, J., Siegel, J. B., Stefanopoulou, A. G., & Waldecker, J. R. (2013). Optimization of purge cycle for dead-ended anode fuel cell operation. International Journal of Hydrogen Energy, 38(12), 5092–5105. https://doi.org/10.1016/j.ijhydene.2013.02.022
  11. Do, T. T., Chen, Y. S., Ly, V. D., Huynh, P. S., Nguyen, V. T., & Le, P. L. (2024, July). Study on the Effect of Fan Speed on the Energy Efficiency of an Open Cathode PEMFC with Wi-Fi Protocol. In 2024 7th International Conference on Green Technology and Sustainable Development (GTSD) (pp. 320-325). IEEE. https://doi.org/10.1109/GTSD62346.2024.10675189
  12. Guo, Z., Tian, C., Gong, K., Xu, W., Chen, L., & Tao, W. Q. (2024). Experimental study on the dynamic response of voltage and temperature of an open-cathode air-cooled proton exchange membrane fuel cell. International Journal of Hydrogen Energy, 57, 601-615. https://doi.org/10.1016/j.ijhydene.2024.01.045
  13. Hu, Z., YiYu, Wang, G., Chen, X., Chen, P., Chen, J., & Zhou, S. Anode purge strategy optimization of the polymer electrode membrane fuel cell system under the dead-end anode operation. Journal of Power Sources, 320 (2016): 68–77. https://doi.org/10.1016/j.jpowsour.2016.04.023
  14. Kandidayeni, M., Macias, A., Boulon, L., & Kelouwani, S. (2019). Efficiency enhancement of an open cathode fuel cell through a systemic management. IEEE Transactions on Vehicular Technology, 68(12), 11462-11472. https://doi.org/10.1109/TVT.2019.2944996
  15. Khokhar, Hassan Naeem. (2023). Decarbonisation of Global Economies; Is Net Zero Emission Achievable? The Case for Hydrogen and Fuel Cell Technology for Innovative Futures. Journal of Entrepreneurship and Innovation in Emerging Economies, 9(1) , 92–130. https://doi.org/10.1177/23939575221141578
  16. Kocha, Shyam S., J. Deliang Yang, and Jung S. Yi. (2006). Characterization of gas crossover and its implications in PEM fuel cells. AIChE Journal, 52(5) (2), 1916–1925. https://doi.org/10.1002/aic.10780
  17. Kurniaa, J. C., Sasmito, A. P., & Shamimc, T. (2019). Advances in proton exchange membrane fuel cell with dead-end anode operation: A review. Applied Energy, 252, 113416. https://doi.org/10.1016/j.apenergy.2019.113416
  18. Lee, J., Ko, S., Kim, B. K., Ryu, J. H., Baek, J. D., & Kang, S. W. (2024). Empirical lifetime prediction through deterioration evaluation of high-power PEMFC for railway vehicle applications. International Journal of Hydrogen Energy, 71, 972-981. https://doi.org/10.1016/j.ijhydene.2024.05.185
  19. Lee, Y., Kim, B., & Kim, Y. (2009). An experimental study on water transport through the membrane of a PEFC operating in the dead-end mode. International Journal of Hydrogen Energy, 34(18), 7768–7779. https://doi.org/10.1016/j.ijhydene.2009.07.010
  20. Li, Q., Sun, K., Suo, M., Zeng, Z., Guan, C., Liu, H., ... & Wang, T. (2024). Water transport in PEMFC with metal foam flow fields: Visualization based on AI image recognition. Applied Energy, 365, 123273. https://doi.org/10.1016/j.apenergy.2024.123273
  21. Liu, Y., Zhang, W., Lei, J., Deng, X., & Liu, Y. (2026). Anode internal purge (AIP) technique for the co-optimization of system efficiency and stack reliability in air-cooled PEMFCs. Fuel, 417, 138641. https://doi.org/10.1016/j.fuel.2026.138641
  22. Ling, C. Y., Cao, H., Chen, Y., Han, M., & Birgersson, E. (2016). Compact open cathode feed system for PEMFCs. Applied Energy, 164, 670-675. https://doi.org/10.1016/j.apenergy.2015.12.012
  23. Manokaran, A., Pushpavanam, S., Sridhar, P., & Pitchumani, S. (2011). Experimental analysis of spatio-temporal behavior of anodic dead-end mode operated polymer electrolyte fuel cell. Journal of Power Sources, 196(23), 9931-9938. https://doi.org/10.1016/j.jpowsour.2011.06.103
  24. Meyer, Q., Ashton, S., Torija, S., Gurney, C., Boillat, P., Cochet, M., ... & Brett, D. J. (2016). Nitrogen blanketing and hydrogen starvation in dead-ended-anode polymer electrolyte fuel cells revealed by hydro-electro-thermal analysis. Electrochimica Acta, 203, 198-205. https://doi.org/10.1016/j.electacta.2016.04.018
  25. Meyer, Q., Ashton, S., Curnick, O., Reisch, T., Adcock, P., Ronaszegi, K., ... & Brett, D. J. (2014). Dead-ended anode polymer electrolyte fuel cell stack operation investigated using electrochemical impedance spectroscopy, off-gas analysis and thermal imaging. Journal of Power Sources, 254, 1-9. https://doi.org/10.1016/j.jpowsour.2013.11.125
  26. Mokmeli, A., & Asghari, S. (2010).An investigation into the effect of anode purging on the fuel cell performance. Journal of Fuel Cell Science and Technology, 35(17), 9276–9282. https://doi.org/10.1016/j.ijhydene.2010.03.079
  27. Müller, E. A., Kolb, F., Guzzella, L., Stefanopoulou, A. G., & McKay, D. A. (2010). Correlating nitrogen accumulation with temporal fuel cell performance. J. Fuel Cell Sci. Technol. 7(2), 021013 https://doi.org/10.1115/1.3177447
  28. Mus, J., Nuyttens, R., Vanierschot, M., Vandeginste, V., & Buysschaert, F. (2025). Experimental study of the effects of ambient conditions on the performance of open-cathode PEM fuel cells. Journal of Power Sources, 660, 238467. https://doi.org/10.1016/j.jpowsour.2025.238467
  29. Ohs, J. H., Sauter, U., Maass, S., & Stolten, D. (2011). Modeling hydrogen starvation conditions in proton-exchange membrane fuel cells. Journal of Power Sources, 196(1), 255-263. https://doi.org/10.1016/j.jpowsour.2010.06.038
  30. O'hayre, R., Cha, S. W., Colella, W., & Prinz, F. B. (2016). Fuel cell fundamentals. John Wiley & Sons
  31. Paul, Biddyut, and John Andrews. (2017). PEM unitised reversible/regenerative hydrogen fuel cell systems: State of the art and technical challenges. Renewable and Sustainable Energy Reviews, 79, 585–599. https://doi.org/10.1016/j.rser.2017.05.112
  32. Pei, H., Xiao, C., & Tu, Z. (2022). Experimental study on liquid water formation characteristics in a novel transparent proton exchange membrane fuel cell. Applied Energy, 321 , 119349. https://doi.org/10.1016/j.apenergy.2022.119349
  33. Rahimi-Esbo, M., A. A. Ranjbar, and S. M. Rahgoshay. (2020). Analysis of water management in PEM fuel cell stack at dead-end mode using direct visualization. Renewable Energy, 162, 212–221. https://doi.org/10.1016/j.renene.2020.06.078
  34. Sasmito, A. P., Birgersson, E., Lum, K. W., & Mujumdar, A. S. (2012). Fan selection and stack design for open-cathode polymer electrolyte fuel cell stacks. Renewable Energy, 37(1), 325-332. https://doi.org/10.1016/j.renene.2011.06.037
  35. Sezgin, B., Devrim, Y., Ozturk, T., & Eroglu, I. (2022). Hydrogen energy systems for underwater applications. International Journal of Hydrogen Energy, 47(45), 19780-19796. https://doi.org/10.1016/j.ijhydene.2022.01.192
  36. Shi, L., Du, C., Zhou, J., Yi, Y., Li, R., Liu, Z., ... & Tang, X. (2025). Optimization of fuel cell shutdown purge strategy based on machine learning: Mechanism analysis and experimental verification. Renewable Energy, 248, 123165. https://doi.org/10.1016/j.renene.2025.123165
  37. Song, Y., Zhang, C., Deshpande, A., Tan, K., & Han, M. (2020). Fixed air flow-rate selection by considering the self-regulating function of low power air-cooled PEMFC stack. International Journal of Heat and Mass Transfer, 158, 119771. https://doi.org/10.1016/j.ijheatmasstransfer.2020.119771
  38. Van Biert, L., Godjevac, M., Visser, K., & Aravind, P. V. (2016). A review of fuel cell systems for maritime applications. Journal of Power Sources, 327, 345-364. https://doi.org/10.1016/j.jpowsour.2016.07.007
  39. Wang, B., Zhao, D., Li, W., Wang, Z., Huang, Y., You, Y., & Becker, S. (2020). Current technologies and challenges of applying fuel cell hybrid propulsion systems in unmanned aerial vehicles. Progress in Aerospace Sciences, 116, 100620. https://doi.org/10.1016/j.paerosci.2020.100620
  40. Wang, Wen Cheng. (2010). A speed regulation system of DC motor based on PWM technology. Applied Mechanics and Materials, 29, 2194–2199. https://doi.org/10.4028/www.scientific.net/AMM.29-32.2194
  41. Wilberforce, T., Alaswad, A., Palumbo, A., Dassisti, M., & Olabi, A. G. (2016). Advances in stationary and portable fuel cell applications. International journal of hydrogen energy, 41(37), 16509-16522. https://doi.org/10.1016/j.ijhydene.2016.02.057
  42. Wilberforce, T., El-Hassan, Z., Khatib, F. N., Al Makky, A., Baroutaji, A., Carton, J. G., & Olabi, A. G. (2017). Developments of electric cars and fuel cell hydrogen electric cars. International Journal of Hydrogen Energy, 42(40), 25695-25734. https://doi.org/10.1016/j.ijhydene.2017.07.054
  43. Xu, K., Chen, D., Guo, R., Chang, K., Hu, S., Pei, P., & Xu, X. (2025). Control and purge strategies for hydrogen supply subsystem of proton exchange membrane fuel cell system. International Journal of Hydrogen Energy, 149, 150050. https://doi.org/10.1016/j.ijhydene.2025.150050
  44. Xiao, F., Chen, T., Chen, Z., Lan, Y., Zhang, S., & Liu, S. (2025). The study on the performance of air-cooled open-cathode PEMFC with dead-ended anode. International Journal of Green Energy, 22(3), 570-581. https://doi.org/10.1080/15435075.2024.2421332
  45. Yang, Y., Zhang, X., Guo, L., & Liu, H. (2020). Local degradation in proton exchange membrane fuel cells with dead-ended anode. Journal of Power Sources, 477 , 229021. https://doi.org/10.1016/j.jpowsour.2020.229021
  46. Yang, H., Yin, C., Tan, Y., Xu, Y., & Tang, H. (2025). Anode nitrogen content estimation and purge strategy optimization of fuel cell system. Applied Energy, 399, 126463. https://doi.org/10.1016/j.apenergy.2025.126463
  47. Yu, J., Jiang, Z., Hou, M., Liang, D., Xiao, Y., Dou, M., Shao, Z., & Yi, B. (2014). Analysis of the behavior and degradation in proton exchange membrane fuel cells with a dead-ended anode. Journal of Power Sources, 246. 90–94. https://doi.org/10.1016/j.jpowsour.2013.06.163
  48. Yu, X., Zhang, C., Li, M., Chen, B., Fan, M., Sheng, X., & Ma, F. (2023). Experimental investigation of self-regulating capability of open-cathode PEMFC under different fan working conditions. International Journal of Hydrogen Energy, 48(68), 26599-26608. https://doi.org/10.1016/j.ijhydene.2022.06.027
  49. Yu, X., Zhang, C., Li, M., Wang, G., Tu, Z., Yu, T., ... & Zhao, F. (2024). Thermal management of an open-cathode PEMFC based on constraint generalized predictive control and optimized strategy. Renewable Energy, 220, 119608. https://doi.org/10.1016/j.renene.2023.119608
  50. Zeng, T., Zhang, C., Huang, Z., Li, M., Chan, S. H., Li, Q., & Wu, X. (2019). Experimental investigation on the mechanism of variable fan speed control in Open cathode PEM fuel cell. International Journal of Hydrogen Energy, 44(43), 24017-24027. https://doi.org/10.1016/j.ijhydene.2019.07.119
  51. Zhao, C., Xing, S., Liu, W., & Wang, H. (2021). Air and H2 feed systems optimization for open-cathode proton exchange membrane fuel cells. International Journal of Hydrogen Energy, 46(21), 11940-11951. https://doi.org/10.1016/j.ijhydene.2021.01.044
  52. Zhou, J., Zhifei, F., and Huichao, D.. (2023). Effect of Fan Parameters on Forced-Convection Open-Cathode Proton Exchange Membrane Fuel Cells. World Hydrogen Technology Convention. Singapore: Springer Nature Singapore. https://doi.org/10.1007/978-981-99-8631-6_42

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