本文以實驗及類比方式交互探討於指叉型流道中加裝肋條對高溫型質子交換膜燃料電池性能的影響。模擬分析四種設計流道(Case Ⅰ~ Case IV)的結果顯示，將肋條設置於出口流道 (CHout) 能有益於提升燃料電池性能，其中以Case Ⅰ的排列方式得以獲得最佳的淨輸出功率，相較於原始光滑指叉型流道能提升淨功率7.82%。實驗以田口法L27直交表進行實驗規劃，並以電池溫度、陽極相對濕度、陰極相對濕度、氫氣化學計量比、氧氣化學計量比對燃料電池之輸出功率、壓降與淨功率進行探討與分析。最終得知氧氣化學計量比與電池溫度為影響性能的主因，而Case Ⅰ的最佳淨功率參數組合為A3B3C1D1E3。藉由奈氏圖同時探討Case Ⅰ分別以輸出功率、壓降與淨功率為目標以及原始流道以淨功率為最佳目標的內部阻抗。

This thesis interactively discusses the effect of setting cuboid rows in the interdigitated flow channel on the performance of high temperature proton exchange membrane fuel cells through experiments and simulations. The results of simulating and analyzing the four design flow channels (Case Ⅰ~ Case IV) can show that setting the cuboid rows in the channel of CHout can be beneficial to improve the performance of the fuel cell. The optimum net electric output power can be obtained with the arrangement of Case I, compared to the original smooth interdigitated flow channel. It can increase net power by 7.82%. Experiment is conducted with the Taguchi method L27 orthogonal array of the Taguchi method, and the output electric power, pressure drop, and net electric power of the fuel cell are discussed with the cell temperature, anode relative humidity, cathode relative humidity, hydrogen stoichiometric ratio, and oxygen stoichiometric ratio. Finally, it is known that the oxygen stoichiometry and fuel cell temperature are the main factors affecting performance, and the optimum net electric power parameter combination for Case I is A3B3C1D1E3. The internal impedance comparisons among the optimal parameters combination of Case I with the output power, that of Case I with pressure drop, that of Case I with net power, and that of the original smooth flow channel with net power are made by the Nyquist plots.

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