Development of an experimentally validated semi-empirical fully-coupled performance model of a PEM electrolysis cell with a 3-D structured porous transport layer
| Autor: | Tom Smolinka, Jason Tai Hong Kwan, Emile Tabu Ojong, Amin Nouri-Khorasani, Arman Bonakdarpour, David P. Wilkinson |
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| Přispěvatelé: | Publica |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Flow (psychology) porous transport layer Analytical chemistry Energy Engineering and Power Technology Proton exchange membrane fuel cell 02 engineering and technology water electrolysis mass transport losses Energietechnik Operating temperature 0502 economics and business 050207 economics Porosity Capillary flow porometry Electrolysis of water Renewable Energy Sustainability and the Environment 05 social sciences Wasserstofferzeugung durch Elektrolyse Mechanics Wasserstofftechnologie 021001 nanoscience & nanotechnology Condensed Matter Physics Volumetric flow rate Fuel Technology 0210 nano-technology multi-physical modelling Polymer electrolyte membrane electrolysis |
| Zdroj: | International Journal of Hydrogen Energy. 42:25831-25847 |
| ISSN: | 0360-3199 |
| Popis: | A semi-empirical non-isothermal model incorporating coupled momentum, heat and mass transport phenomena for predicting the performance of a proton exchange membrane (PEM) water electrolysis cell operating without flow channels is presented. Model input parameters such as electro-kinetics properties and mean pore size of the porous transport layer (PTL) were determined by rotating disc electrode and capillary flow porometry, respectively. This is the first report of a semi-empirical fully coupled model which allows one to quantify and investigate the effect of the gas phase and bubble coverage on PEM cell performance up to very high current densities of about 5 A/cm 2 . The mass transport effects are discussed in terms of the operating conditions, design parameters and the microstructure of the PTL. The results show that, the operating temperature and pressure, and the inlet water flowrate and thickness of the PTL are the critical parameters for mitigating mass transport limitation at high current densities. The model presented here can serve as a tool for further development and scale-up effort in the area of PEM water electrolysis, and provide insight during the design stage. |
| Databáze: | OpenAIRE |
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