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- W2602458231 abstract "Abstract Water management is an important issue for proton exchange membrane fuel cells. Back-diffusion of water from cathode to anode often occurs due to the differences in concentration and pressure during operation of fuel cell, resulting in the flooding and severe carbon corrosion in the cathode. Herein, we report a novel method of anode moisture condensing (AMC) in which a condenser is set at the outlet of the anode to cool down the anode moisture. With the help of AMC, liquid water is condensed from the moisture due to the variation of the saturated pressure of water vapor, which can accelerate the evaporating of the liquid water inside the anode and mitigate the probability of water flooding. A ten-cell stack with a condenser at the outlet of the anode is fabricated to systematically investigate the effects of the stack temperature and flow rate on the stack performance. The result shows that the PEMFC performance can be greatly improved at high current density and high operation temperature under the condition of AMC. The stack exhibits very similar performance before and after application of AMC below 500 mA cm−2, whereas the output power increases from 405 W to 436 W at 600 mA cm−2 at 65 °C. With further increase in operation temperature to 80 °C, the average voltage increases from 0.598 V to 0.641 V even at 500 mA cm−2. Moreover, the application of AMC can speed up the water evaporation, leading to the dehydration of the membrane and thus poor performance of PEMFC at low current density." @default.
- W2602458231 created "2017-04-07" @default.
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- W2602458231 date "2017-06-01" @default.
- W2602458231 modified "2023-10-16" @default.
- W2602458231 title "Evaluation of performance enhancement by condensing the anode moisture in a proton exchange membrane fuel cell stack" @default.
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- W2602458231 doi "https://doi.org/10.1016/j.applthermaleng.2017.03.128" @default.
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