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Experimental study of humidity changes on the performance of an elliptical single four-channel PEM fuel cell

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Abstract

Humidity and humidification in a proton exchange membrane fuel cells (PEM) can significantly affect the performance of these energy generating devices. Since protons (H+) needs to be accompanied by water molecules to pass from the anode side to the cathode side, the PEM fuel cell membrane should be sufficiently wet. Low or high amount of water in the membrane can interrupt the flow of protons and thus reduce the efficiency of the fuel cell. In this context, several experimental studies and modeling have been carried out on PEM fuel cell and interesting results have been achieved. In this paper, the humidity and flow rate of gas in the anode and cathode are modified to examine its effect on fuel cell performance. The results show that the effect of humidity changing in the anode side is greater than that of the cathode so that at zero humidity of anode and 70 % humidity of the cathode, a maximum current flow of 0.512 A/cm2 for 0.12 V was obtained. However, at 70 % anode humidity and zero cathode humidity, a maximum flow of 0.86 A/cm2 for 0.13 V was obtained.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Ferdowsi University, P.O.B. 9177948944, Mashhad, Iran

    Mohammad Gholizadeh & Mohsen Ghazikhani

  2. Faculty of Mechanical and Energy Engineering, Shahid Beheshti University, A.C., Tehran, Iran

    Iman Khazaee

Authors
  1. Mohammad Gholizadeh
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  2. Mohsen Ghazikhani
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  3. Iman Khazaee
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Correspondence to Mohsen Ghazikhani.

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Gholizadeh, M., Ghazikhani, M. & Khazaee, I. Experimental study of humidity changes on the performance of an elliptical single four-channel PEM fuel cell. Heat Mass Transfer 53, 233–239 (2017). https://doi.org/10.1007/s00231-016-1819-0

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  • DOI: https://doi.org/10.1007/s00231-016-1819-0

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