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http://dx.doi.org/10.7316/KHNES.2022.33.4.353

Analysis of Water Transport through Measurement of Temperature and Relative Humidity in PEMFC at OCV  

KIM, TAEHYEONG (Department of Mechanical Engineering, Chungnam National University Graduate School)
HAN, JAESU (Department of Mechanical Engineering, Chungnam National University Graduate School)
YU, SANGSEOK (Department of Mechanical Engineering, Chungnam National University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.33, no.4, 2022 , pp. 353-362 More about this Journal
Abstract
In this study, water diffusion in proton exchange membrane fuel cell at open circuit voltage (OCV) was analyzed through experiment. First, the reliability of the micro-sensor (SHT31) was verified. It was concluded the micro-sensor has an excellent reliability at 60℃ and 70℃. After the sensor reliability test, the temperature and relative humidity measurement in bipolar-plate was conducted at OCV. To analyze water distribution and water flux, the temperature and relative humidity was converted into dew point. To the end, it was found water concentration affects water diffusion.
Keywords
Proton exchange membrane fuel cell; Water transport; Temperature; Relative humidity; Dew point;
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Times Cited By KSCI : 2  (Citation Analysis)
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