Details
| Original language | English |
|---|---|
| Article number | 115580 |
| Journal | Computer Methods in Applied Mechanics and Engineering |
| Volume | 400 |
| Early online date | 12 Sept 2022 |
| Publication status | Published - 1 Oct 2022 |
Abstract
This work provides a framework for predicting fracture of catalyst coated membrane (CCM) due to coupled electro-chemo-mechanical degradation processes in proton exchange membrane water electrolysis (PEMWE) cells. Electrolysis in the catalyst layer (CL) bulk, diffusion of Hydrogen proton through the membrane (MEM), and mechanical compression at the interface with the porous transport layer (PTL) generate micro-cracks that influence the catalyst degradation. Based on our experimental observations, we propose a new theoretical formulations along with the constitutive framework to help understanding and providing a reliable description of the stated multi-physics problem. The computational modeling of crack formation in the CL bulk is achieved in a convenient way by continuum phase-field formulations to fracture, which are based on the regularization of sharp crack discontinuities. The model performance is demonstrated through two representative boundary value problems, representing the cell setup and working of the PEMWE cell.
Keywords
- Catalyst coated membrane (CCM), Experimental observations, Multi-physics problem, Porous transport layer (PTL), Proton exchange membrane water electrolysis (PEMWE), Sustainable hydrogen production
ASJC Scopus subject areas
- Engineering(all)
- Computational Mechanics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Physics and Astronomy(all)
- Computer Science(all)
- Computer Science Applications
Sustainable Development Goals
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In: Computer Methods in Applied Mechanics and Engineering, Vol. 400, 115580, 01.10.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Electro-chemo-mechanical induced fracture modeling in proton exchange membrane water electrolysis for sustainable hydrogen production
AU - Aldakheel, Fadi
AU - Kandekar, Chaitanya
AU - Bensmann, Boris
AU - Dal, Hüsnü
AU - Hanke-Rauschenbach, Richard
N1 - Funding Information: The corresponding author Fadi Aldakheel (FA) appreciates the scientific support of the sub-project C4 within the Deutsche Forschungsgemeinschaft, Germany ( DFG , German Research Foundation) in the Collaborative Research Center CRC 1153 (Project ID ). FA would like to thank Prof. Peter Wriggers (LUH Hannover) and Dr. Michel Suermann (LUH Hannover, meanwhile with Siemens Energy) for the fruitful discussions and comments. RHR and BB gratefully acknowledge the financial support by the Federal Ministry of Economic Affairs and Climate Action of Germany in the framework of HoKaWe (Project ID 03EI3029B).
PY - 2022/10/1
Y1 - 2022/10/1
N2 - This work provides a framework for predicting fracture of catalyst coated membrane (CCM) due to coupled electro-chemo-mechanical degradation processes in proton exchange membrane water electrolysis (PEMWE) cells. Electrolysis in the catalyst layer (CL) bulk, diffusion of Hydrogen proton through the membrane (MEM), and mechanical compression at the interface with the porous transport layer (PTL) generate micro-cracks that influence the catalyst degradation. Based on our experimental observations, we propose a new theoretical formulations along with the constitutive framework to help understanding and providing a reliable description of the stated multi-physics problem. The computational modeling of crack formation in the CL bulk is achieved in a convenient way by continuum phase-field formulations to fracture, which are based on the regularization of sharp crack discontinuities. The model performance is demonstrated through two representative boundary value problems, representing the cell setup and working of the PEMWE cell.
AB - This work provides a framework for predicting fracture of catalyst coated membrane (CCM) due to coupled electro-chemo-mechanical degradation processes in proton exchange membrane water electrolysis (PEMWE) cells. Electrolysis in the catalyst layer (CL) bulk, diffusion of Hydrogen proton through the membrane (MEM), and mechanical compression at the interface with the porous transport layer (PTL) generate micro-cracks that influence the catalyst degradation. Based on our experimental observations, we propose a new theoretical formulations along with the constitutive framework to help understanding and providing a reliable description of the stated multi-physics problem. The computational modeling of crack formation in the CL bulk is achieved in a convenient way by continuum phase-field formulations to fracture, which are based on the regularization of sharp crack discontinuities. The model performance is demonstrated through two representative boundary value problems, representing the cell setup and working of the PEMWE cell.
KW - Catalyst coated membrane (CCM)
KW - Experimental observations
KW - Multi-physics problem
KW - Porous transport layer (PTL)
KW - Proton exchange membrane water electrolysis (PEMWE)
KW - Sustainable hydrogen production
UR - http://www.scopus.com/inward/record.url?scp=85137715200&partnerID=8YFLogxK
U2 - 10.1016/j.cma.2022.115580
DO - 10.1016/j.cma.2022.115580
M3 - Article
AN - SCOPUS:85137715200
VL - 400
JO - Computer Methods in Applied Mechanics and Engineering
JF - Computer Methods in Applied Mechanics and Engineering
SN - 0045-7825
M1 - 115580
ER -