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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Daniel, J. Keene Jane, H. Davidson Lipiński, Wojciech |
| Copyright Year | 2012 |
| Abstract | The redox chemistry of nonstoichiometric metal oxides can be used to produce chemical fuels by harnessing concentrated solar energy to split water and/or carbon dioxide. In such a process, it is desirable to use a porous reactive substrate for increased surface area and improved gas transport. The present study develops a macroscopic-scale model of porous ceria undergoing thermal reduction. The model captures the coupled interactions between the heat and mass transfer and the heterogeneous chemistry using a local thermal non-equilibrium (LTNE) formulation of the volume averaged conservation of mass and energy equations in an axisymmetric cylindrical domain. The results of a representative test case simulation demonstrate strong coupling between gas phase mass transfer and the chemical kinetics as well as the pronounced impact of optical thickness on the temperature distribution and thus global solar-to-chemical energy conversion. |
| Sponsorship | Advanced Energy Systems Division Solar Energy Division |
| Starting Page | 1121 |
| Ending Page | 1130 |
| Page Count | 10 |
| File Format | |
| ISBN | 9780791844816 |
| DOI | 10.1115/ES2012-91380 |
| Volume Number | ASME 2012 6th International Conference on Energy Sustainability, Parts A and B |
| Conference Proceedings | ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology |
| Language | English |
| Publisher Date | 2012-07-23 |
| Publisher Place | San Diego, California, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Water Temperature distribution Equilibrium (physics) Metals Carbon dioxide Conservation laws (physics) Fuels Mass transfer Transients (dynamics) Heat Chemistry Simulation Solar energy Chemical kinetics Energy conversion |
| Content Type | Text |
| Resource Type | Article |
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