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Updated: Aug 16, 2025
08:41
Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
Published on: September 7, 2018
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Performance Comparison of Proton Exchange Membrane Water Electrolysis Cell Using Channel and PTL Flow Fields through
Seongsoon Park1, Woojung Lee1, Youngseung Na1
1Department of Mechanical and Information Engineering, University of Seoul, Seoul 02054, Republic of Korea.
Membranes
|December 23, 2022
Summary
Optimizing bipolar plate design in proton exchange membrane water electrolysis (PEMWE) is key to reducing costs and improving efficiency. Channel flow fields with higher width ratios and porous transport layer permeability enhance PEMWE performance.
Area of Science:
- Electrochemistry
- Materials Science
- Renewable Energy
Background:
- Proton exchange membrane water electrolysis (PEMWE) is crucial for integrating renewable energy but faces high costs due to bipolar plates.
- Optimizing bipolar plate design, specifically the flow field, is essential for enhancing PEMWE performance and commercialization.
- Understanding two-phase flow and electrochemical reactions within the PEMWE anode is critical for performance improvements.
Purpose of the Study:
- To analyze the impact of flow field design and porous transport layer (PTL) properties on PEMWE anode performance.
- To investigate the influence of gravity and flow rate on PEMWE performance.
- To provide insights for designing enhanced bipolar plates to reduce PEMWE costs.
Main Methods:
- Development and application of a three-dimensional two-phase flow model for PEMWE anode simulation.
- Experimental validation of simulation results by conducting tests at various flow rates.
- Comparative analysis of channel flow fields versus porous transport layer (PTL) flow fields.
Main Results:
- Channel flow fields demonstrated superior performance compared to PTL flow fields.
- For channel flow fields, increased channel width-to-rib width ratio and PTL permeability improved performance.
- PTL flow field performance improved with increased capillary pressure, even with decreased PTL permeability. Gravity affected channel flow field performance, with X+ and Z+ directions being optimal.
Conclusions:
- Flow field design and PTL characteristics significantly impact PEMWE anode performance.
- Optimizing channel geometry and PTL properties can enhance PEMWE efficiency.
- Further research into bipolar plate design is necessary for cost-effective PEMWE commercialization.
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