Analysis of transient response of a unit proton-exchange membrane fuel cell with a degraded gas diffusion layer

Cho, Junhyun; Ha, Taehun; Park, Jae-Man; Kim, Han-Sang; Min, Kyoungdoug; Lee, Eun-Sook; Jyoung, Jy-Young

doi:10.1016/j.ijhydene.2011.02.060

Cited by 55 publications

(35 citation statements)

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“…Water accumulation at the anode and the nitrogen crossover from the cathode caused performance degradation in the dead-end mode. Cho et al [7] studied the effect of a degraded gas diffusion layer (GDL) on the transient response of PEMFCs. The degraded GDL caused flooding and lower voltage response due to uneven hydrophobicity distribution.…”

Section: Introductionmentioning

confidence: 99%

The effects of air stoichiometry and air excess ratio on the transient response of a PEMFC under load change conditions

2015

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Section: Introductionmentioning

confidence: 99%

The effects of air stoichiometry and air excess ratio on the transient response of a PEMFC under load change conditions

2015

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“…Subsequent experiments investigated the effects of stoichiometric ratios, humidity levels, and flooding intensity [10]. Later, they showed the effects of a degraded gas diffusion layer (GDL) on transient response, repeating many of their earlier conclusions [11].…”

Section: Previous Workmentioning

confidence: 63%

Regression analysis of PEM fuel cell transient response

Edwards

Demuren

2016

Int J Energy Environ Eng

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To develop operating strategies in polymer electrolyte membrane (PEM) fuel cell-powered applications, precise computationally efficient models of the fuel cell stack voltage are required. Models are needed for all operating conditions, including transients. In this work, transient evolutions of voltage, in response to load changes, are modeled with a sum of three exponential decay functions. Amplitude factors are correlated to steady-state operating data (temperature, humidity, average current, resistance, and voltage). The obtained time constants reflect known processes of the membrane heat/water transport. These model parameters can form the basis for the prediction of voltage overshoot/undershoot used in computational-based control systems, used in real-time simulation. Furthermore, the results provide an empirical basis for the estimation of the magnitude of temporary voltage loss to be expected with sudden load changes, as well as a systematic method for the analysis of experimental data. Its applicability is currently limited to thin membranes with low to moderate humidity gases, and with adequately high reactant-gas stoichiometry.

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“…A transient response of a PEM fuel cell after a leaching test of 2160 h in DI water was investigated by Cho et al [83], as shown in Fig. 9.…”

Section: Dissolution Effect On Gdlmentioning

confidence: 99%

A review of the gas diffusion layer in proton exchange membrane fuel cells: Durability and degradation

et al. 2015

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Analysis of transient response of a unit proton-exchange membrane fuel cell with a degraded gas diffusion layer

Cited by 55 publications

References 56 publications

The effects of air stoichiometry and air excess ratio on the transient response of a PEMFC under load change conditions

The effects of air stoichiometry and air excess ratio on the transient response of a PEMFC under load change conditions

Regression analysis of PEM fuel cell transient response

A review of the gas diffusion layer in proton exchange membrane fuel cells: Durability and degradation

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