Verification of a cathode pressure drop model for single phase flow in a proton exchange membrane fuel cell

LI Yuehua; PEI Pucheng; WU Ziyao; JIA Xiaoning

doi:10.16511/j.cnki.qhdxxb.2018.22.007

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Journal of Tsinghua University(Science and Technology) ›› 2018, Vol. 58 ›› Issue (1) : 43-49. DOI: 10.16511/j.cnki.qhdxxb.2018.22.007

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Verification of a cathode pressure drop model for single phase flow in a proton exchange membrane fuel cell

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Abstract

The single phase flow pressure drop through the cathode in a proton exchange membrane fuel cell is an important benchmark for online water management. However, there are few models of this pressure drop applicable to all operating conditions. The cathode pressure drop is found here to be a quadratic function of the current and stoichiometric ratio using experimental data for a 156 W fuel cell. Five parameters influencing the pressure drop are the current, stoichiometric ratio, stack temperature, inlet pressure, and inlet relative humidity. A model for this pressure drop is then developed that agrees within 10% with experiment results. This model can guide online diagnosis of water related faults.

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hydrogen energy / proton exchange membrane fuel cell / cathode pressure drop / online water management

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LI Yuehua, PEI Pucheng, WU Ziyao, JIA Xiaoning. Verification of a cathode pressure drop model for single phase flow in a proton exchange membrane fuel cell[J]. Journal of Tsinghua University(Science and Technology). 2018, 58(1): 43-49 https://doi.org/10.16511/j.cnki.qhdxxb.2018.22.007

References

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