Characteristic simulation and numerical investigation of membrane electrode assembly in proton exchange membrane fuel cell. (30th October 2022)

• Record Type: Journal Article
• Authors: Huang, Pei-Hsing; Kuo, Jenn-Kun; Chung, Shang-Shu
• Is Part Of: International journal of hydrogen energy. Volume 47:Number 88(2022)
• Page Start: 37577
• Page End: 37586
• Publication Date: 2022-10-30
• Subjects: Proton exchange membrane fuel cell (PEMFC) -- Numerical -- Permeability -- Porosity -- Mass fraction -- Electrochemical reaction; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2021.07.098
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: This study analyzes the characteristic numerical analysis of membrane electrode assembly in Proton Exchange Membrane Fuel Cell (PEMFC) with bipolar plate, flow channel, gas diffusion electrode, and proton exchange membrane. The numerical solution focuses on discussing the effects of different parameters, including permeability, porosity, and operation voltage, on various mass fractions, current-voltage curve, and power-voltage curve. The results show that as the porous medium with high gas permeability is an important factor that affects the mass fraction of hydrogen. Regarding the analyses of various porosities, the fuel cell performance can be effectively promoted with larger ratio of porosity and permeability. However, increasing the porosity will affect the electrical conductivity and increase the flooding of water, which will block the flow channel and reduce efficiency. Highlights: Increasing the permeability will improve PEMFC performance. High porosity can be effectively associated and allow the gas to flow through. High voltages will increase the hydrogen mass fraction and affect the electrochemical reaction.