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摘要
A quasi-three-dimensional non-isothermal dynamic model of a high-temperature proton exchange membrane fuel cell, operating with a polybenzimidazole membrane, has been developed. In the model, dynamic equations of energy conservation, species conservation and electrochemical reaction are solved within a simplified quasi-three-dimensional geometry. With this simplified geometry, the model can predict the distribution of fuel cell characteristics and physical phenomena in a high-temperature proton exchange membrane fuel cell during the steady and the transient states within minutes, without using a computational fluid dynamics program. The simulation results of the current-voltage polarization curve are validated with the experimental data reported in the literature. The simulation results show a good agreement with the experimental data and show that the variation of temperature strongly affects the fuel cell's performance. In particular, the simulation results show that the transient response of the cell voltage is dependent upon that of the cell temperature.
- 出版日期2012-10-15
