Numerical simulation of snake channel for proton exchange membrane electrolyzer
As an important structure in Proton Exchange Membrane Electrolytic Cell(PEMEC),anode and cathode runner plays a key role in both heat and mass transfer and electrolytic performance of the cell.A serpentine runner PEMEC was estab-lished in COMSOL,and the parallel runner was selected as a comparison to analyze the influence of the two runner structures on the electrolytic performance and heat and mass transfer performance of PEMEC.The results show that the flow channel structure has little influence on the polarization performance of PEM electrolyzer.However,from the liquid water mole fraction,it can be found that the electrolytic performance of serpentine flow channel is lower than that of parallel flow channel,but the heat dissipa-tion capacity of serpentine flow channel is much higher than that of parallel flow channel.At 2.4 V,the maximum temperature of the serpentine flow channel electrolyzer is 73.3％lower than that of the parallel flow channel proton exchange membrane.The service life and safety of the proton exchange membrane are improved,which provide guidance for the selection and optimization of the flow channel of the subsequent PEM electrolyzer.
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