Numerical modeling of radiation heat exchange in combustion chambers and heat exchangers of power installations
The application of numerical modeling is considered to solve the problems of radiation heat exchange in structurally inhomogeneous two-phase media which are realized during the combustion of fuel in boiler units atmospheric emissions from air carriers when they move at supersonic speeds. The optical...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/69/e3sconf_energy-212020_03018.pdf |
| _version_ | 1819050421588590592 |
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| author | Moskalenko Nikolay Dodov Ibragim Akhmetshin Azat |
| author_facet | Moskalenko Nikolay Dodov Ibragim Akhmetshin Azat |
| author_sort | Moskalenko Nikolay |
| collection | DOAJ |
| description | The application of numerical modeling is considered to solve the problems of radiation heat exchange in structurally inhomogeneous two-phase media which are realized during the combustion of fuel in boiler units atmospheric emissions from air carriers when they move at supersonic speeds. The optically active ingredients of the gas phase of the combustion products have a sharp selection of spectral absorption lines (radiation) which causes a difference in the spectral transmission functions for selective radiation from the spectral transmission functions for non-selective radiation (gray body). In the presence of a dispersed phase of the combustion products acute selection is subjected to such a parameter of the radiation propagation medium as the probability of quantum survival. The number of spectral lines determining the spectral transmission functions increases with temperature and is determined by hundreds of thousands of lines at high temperatures. In this paper we consider a closed simulation of radiation heat transfer in combustion chambers when the temperature field in the combustion chambers is calculated first and then the flux of thermal radiation to the tube heat-receiving surfaces. |
| first_indexed | 2024-12-21T11:47:47Z |
| format | Article |
| id | doaj.art-8ccf8026b7a8480189cf8a93fe782945 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-21T11:47:47Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-8ccf8026b7a8480189cf8a93fe7829452022-12-21T19:05:08ZengEDP SciencesE3S Web of Conferences2267-12422020-01-012090301810.1051/e3sconf/202020903018e3sconf_energy-212020_03018Numerical modeling of radiation heat exchange in combustion chambers and heat exchangers of power installationsMoskalenko NikolayDodov IbragimAkhmetshin AzatThe application of numerical modeling is considered to solve the problems of radiation heat exchange in structurally inhomogeneous two-phase media which are realized during the combustion of fuel in boiler units atmospheric emissions from air carriers when they move at supersonic speeds. The optically active ingredients of the gas phase of the combustion products have a sharp selection of spectral absorption lines (radiation) which causes a difference in the spectral transmission functions for selective radiation from the spectral transmission functions for non-selective radiation (gray body). In the presence of a dispersed phase of the combustion products acute selection is subjected to such a parameter of the radiation propagation medium as the probability of quantum survival. The number of spectral lines determining the spectral transmission functions increases with temperature and is determined by hundreds of thousands of lines at high temperatures. In this paper we consider a closed simulation of radiation heat transfer in combustion chambers when the temperature field in the combustion chambers is calculated first and then the flux of thermal radiation to the tube heat-receiving surfaces.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/69/e3sconf_energy-212020_03018.pdf |
| spellingShingle | Moskalenko Nikolay Dodov Ibragim Akhmetshin Azat Numerical modeling of radiation heat exchange in combustion chambers and heat exchangers of power installations E3S Web of Conferences |
| title | Numerical modeling of radiation heat exchange in combustion chambers and heat exchangers of power installations |
| title_full | Numerical modeling of radiation heat exchange in combustion chambers and heat exchangers of power installations |
| title_fullStr | Numerical modeling of radiation heat exchange in combustion chambers and heat exchangers of power installations |
| title_full_unstemmed | Numerical modeling of radiation heat exchange in combustion chambers and heat exchangers of power installations |
| title_short | Numerical modeling of radiation heat exchange in combustion chambers and heat exchangers of power installations |
| title_sort | numerical modeling of radiation heat exchange in combustion chambers and heat exchangers of power installations |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/69/e3sconf_energy-212020_03018.pdf |
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