Analysis of the Influence of Component Degradation on Different Degradation Indexes of PEMFC

Fan, Lei; Gao, Jianhua; Lu, Yanda; Shen, Wei; Zhou, Su

doi:10.3390/en16237806

Cited by 1 publication

(3 citation statements)

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“…Based on the previous research [18], the performance and distribution indexes of PEM-FCs under different degradation levels are conducted by AVL FIRE M. It should be noted that the simulation only attains the degradation level and not the operation time. Therefore, the operation time is obtained by the experiments.…”

Section: Simulation Of Pemfc Degradationmentioning

confidence: 99%

“…The current density gradually decreases with the increase in the degradation level. The current density of the PEMFC is approximately linearly related to the degradation level (𝐷𝐷 PEMFC ), which can be expressed as Equation (18). The initial current density of the simulation is 6551.6 A/m 2 , which is used as the reference value.…”

Section: Empirical Degradation Model Of Current Densitymentioning

confidence: 99%

“…i PEMFC = 6551.63766 − 6678.66234D PEMFC (18) Energies 2022, 15, x FOR PEER REVIEW 10 of 21 The simulation results can only obtain the relationship between the degradation level and various indexes, while the experimental results can only obtain the relationship between the operation time and the index of current density. The empirical degradation models of other indexes are established by the index of current density because both simulation and experimental results have the index of current density.…”

Section: Empirical Degradation Model Of Current Densitymentioning

confidence: 99%

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Empirical Degradation Models of the Different Indexes of the Proton Exchange Membrane Fuel Cell Based on the Component Degradation

Fan,

Gao,

et al. 2023

Energies

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To describe the degradation of proton exchange membrane fuel cells (PEMFCs), empirical degradation models of different indexes of PEMFCs are established. Firstly, the simulation process and assumptions of PEMFC degradation are proposed. Secondly, the degradation simulation results including the performance and distribution indexes under the different degradation levels are conducted by AVL FIRE M. Finally, the empirical degradation models of performance and distribution indexes are established based on the above simulation results and experimental data. The results show that the relationship between the experimental and simulation results is established by the index of current density. The empirical degradation models of current density, average equilibrium potential on the cathode catalyst layer (CL), average membrane water content, average oxygen molar concentration on the cathode CL, and average hydrogen crossover flux are the linear function. The empirical degradation models of average exchange current density on the anode CL, average hydrogen molar concentration on the anode CL, and average oxygen crossover flux are the quadratic function. The empirical degradation model of average activation overpotential on the cathode CL is the quintic function.

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Section: Simulation Of Pemfc Degradationmentioning

confidence: 99%

Section: Empirical Degradation Model Of Current Densitymentioning

confidence: 99%

Section: Empirical Degradation Model Of Current Densitymentioning

confidence: 99%

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