Estimation of extreme temperatures in direct solar methane pyrolysis within a porous medium
Porous media have wide application in renewable energy conversion processes, such as solar-thermal fuels production and decarbonization. Heat transport mechanisms within porous media can be highly complex, particularly under extreme conditions encountered in concentrated solar thermal reactors in wh...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Nanotechnology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fnano.2024.1502539/full |
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| author | Hengrui Xu Mostafa Abuseada Y. Sungtaek Ju R. Mitchell Spearrin Timothy S. Fisher |
| author_facet | Hengrui Xu Mostafa Abuseada Y. Sungtaek Ju R. Mitchell Spearrin Timothy S. Fisher |
| author_sort | Hengrui Xu |
| collection | DOAJ |
| description | Porous media have wide application in renewable energy conversion processes, such as solar-thermal fuels production and decarbonization. Heat transport mechanisms within porous media can be highly complex, particularly under extreme conditions encountered in concentrated solar thermal reactors in which direct measurement of temperature is challenging. Here, we implement and report an inverse heat conduction model to estimate the temperature distribution throughout a porous substrate domain in a direct solar methane pyrolysis process. By solving a two-dimensional heat transfer problem and applying an inverse optimization algorithm, we estimate the quasi-steady state spatial temperature distribution in a fibrous porous carbon substrate. The results are validated indirectly by experimentally measured graphite deposition and a simplified reaction kinetic model. |
| format | Article |
| id | doaj-art-42ef23e059b243649111eb8a42b54f0c |
| institution | Kabale University |
| issn | 2673-3013 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Nanotechnology |
| spelling | doaj-art-42ef23e059b243649111eb8a42b54f0c2025-01-30T06:22:08ZengFrontiers Media S.A.Frontiers in Nanotechnology2673-30132025-01-01610.3389/fnano.2024.15025391502539Estimation of extreme temperatures in direct solar methane pyrolysis within a porous mediumHengrui XuMostafa AbuseadaY. Sungtaek JuR. Mitchell SpearrinTimothy S. FisherPorous media have wide application in renewable energy conversion processes, such as solar-thermal fuels production and decarbonization. Heat transport mechanisms within porous media can be highly complex, particularly under extreme conditions encountered in concentrated solar thermal reactors in which direct measurement of temperature is challenging. Here, we implement and report an inverse heat conduction model to estimate the temperature distribution throughout a porous substrate domain in a direct solar methane pyrolysis process. By solving a two-dimensional heat transfer problem and applying an inverse optimization algorithm, we estimate the quasi-steady state spatial temperature distribution in a fibrous porous carbon substrate. The results are validated indirectly by experimentally measured graphite deposition and a simplified reaction kinetic model.https://www.frontiersin.org/articles/10.3389/fnano.2024.1502539/fullsolar methane pyrolysisporous mediapyrolytic graphitefinite difference methodinverse problem |
| spellingShingle | Hengrui Xu Mostafa Abuseada Y. Sungtaek Ju R. Mitchell Spearrin Timothy S. Fisher Estimation of extreme temperatures in direct solar methane pyrolysis within a porous medium Frontiers in Nanotechnology solar methane pyrolysis porous media pyrolytic graphite finite difference method inverse problem |
| title | Estimation of extreme temperatures in direct solar methane pyrolysis within a porous medium |
| title_full | Estimation of extreme temperatures in direct solar methane pyrolysis within a porous medium |
| title_fullStr | Estimation of extreme temperatures in direct solar methane pyrolysis within a porous medium |
| title_full_unstemmed | Estimation of extreme temperatures in direct solar methane pyrolysis within a porous medium |
| title_short | Estimation of extreme temperatures in direct solar methane pyrolysis within a porous medium |
| title_sort | estimation of extreme temperatures in direct solar methane pyrolysis within a porous medium |
| topic | solar methane pyrolysis porous media pyrolytic graphite finite difference method inverse problem |
| url | https://www.frontiersin.org/articles/10.3389/fnano.2024.1502539/full |
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