Performance enhancement of a high temperature proton exchange membrane fuel cell by bottomed-baffles in bipolar-plate channels

Shiang Wuu Perng, Horng-Wen Wu, Yi Bin Chen, Yi Kai Zeng

研究成果: Article

摘要

Since HT-PEMFCs (high temperature proton exchange membrane fuel cell) operate above 120 °C, it can vaporize the liquid water produced at cathode to simplify the water management system and has better tolerance of CO in the PBI (polybenzimidazole) membrane. This study utilized a three-dimensional numerical model to explore the cell performance of HT-PEMFCs (high temperature proton exchange membrane fuel cells) under the installation of various-numbers baffles on the bottom of the anode and cathode bipolar-plate channels by the SIMPLE-C algorithm. Furthermore, this study accounted for the pressure drop through the bipolar-plate channel to determine the net HT-PEMFC power. The numerical results display that the highest net HT-PEMFC power exists as the number of bottomed-baffle is five, and the net HT-PEMFC power for five bottomed-baffles is higher than that for without baffles by 8%. The present simulation is verified by the HT-PEMFC performance measured from the in-house experiment to show that the CFD results reasonably consist with the measured data of in-house experiments. In addition, the five bottomed-baffle channel has lower total impedance than smooth channel resulted from an electrochemical impedance spectroscopy (EIS) test.

原文English
文章編號113815
期刊Applied Energy
255
DOIs
出版狀態Published - 2019 十二月 1

指紋

Proton exchange membrane fuel cells (PEMFC)
fuel cell
membrane
Temperature
Cathodes
Water management
Electrochemical impedance spectroscopy
Pressure drop
pressure drop
Numerical models
Anodes
Computational fluid dynamics
Experiments
water management
Membranes
tolerance
experiment
spectroscopy
Liquids
liquid

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Energy(all)
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law

引用此文

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Performance enhancement of a high temperature proton exchange membrane fuel cell by bottomed-baffles in bipolar-plate channels. / Perng, Shiang Wuu; Wu, Horng-Wen; Chen, Yi Bin; Zeng, Yi Kai.

於: Applied Energy, 卷 255, 113815, 01.12.2019.

研究成果: Article

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