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Air-breathing versus conventional polymer electrolyte fuel cells: A parametric numerical study

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Date

2022

Author

Calili-Cankir, Fatma
Ismail, Mohammed S.
Ingham, Derek B.
Hughes, Kevin J.
Ma, Lin
Pourkashanian, Mohamed

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Citation

Calili-Cankir, F., Ismail, M.S., Ingham, D.B., Hughes, K.J., Ma, L., Pourkashanian, M. (2022). Air-breathing versus conventional polymer electrolyte fuel cells: A parametric numerical study. Energy, 250, art. no. 123827. https://doi.org/10.1016/j.energy.2022.123827

Abstract

Two mathematical models have been built for air-breathing and conventional polymer electrolyte fuel cells to explore the reasons affecting the cell performance. A parametric study has been conducted to (i) investigate how each type of fuel cells responds to changes in some key parameters and (ii) consequently obtain some insights on how to improve the performance of the air-breathing fuel cell. The conventional fuel cell significantly outperforms the air-breathing fuel cell and this is due to substantially higher forced convection-related heat and mass transfer coefficients associated with the conventional fuel cell as compared with natural convection-related heat and mass transfer coefficients associated with airbreathing fuel cell. The two types of fuel cell respond differently to changes in porosity and thickness of gas diffusion layer: the conventional fuel cell performs better with increasing porosity of gas diffusion layer (from 0.4 to 0.8) and decreasing thickness of gas diffusion layer (from 700 to 100 mm) while the airbreathing fuel cell performs better with decreasing porosity and increasing thickness of gas diffusion layer. Further, the air-breathing fuel cell was found to be more sensitive to membrane thickness and less sensitive to electrical resistance compared to conventional fuel cell.

Source

Energy

Volume

250

URI

https://doi.org/10.1016/j.energy.2022.123827
https://hdl.handle.net/20.500.12508/2274

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  • Araştırma Çıktıları | Scopus İndeksli Yayınlar Koleksiyonu [1057]
  • Araştırma Çıktıları | Web of Science İndeksli Yayınlar Koleksiyonu [1070]
  • Makale Koleksiyonu [20]



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