Boiling Synchronization in Two Parallel Minichannels—Image Analysis
In this paper, the boiling synchronization of two-phase flow patterns in two parallel minichannels of 1 mm in diameter with connected compressible volumes was analyzed. The analysis was performed using images recorded with a high-speed camera. The degree of synchronization between channels was evalu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/6/1409 |
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| author | Gabriela Rafałko Iwona Zaborowska Hubert Grzybowski Romuald Mosdorf |
| author_facet | Gabriela Rafałko Iwona Zaborowska Hubert Grzybowski Romuald Mosdorf |
| author_sort | Gabriela Rafałko |
| collection | DOAJ |
| description | In this paper, the boiling synchronization of two-phase flow patterns in two parallel minichannels of 1 mm in diameter with connected compressible volumes was analyzed. The analysis was performed using images recorded with a high-speed camera. The degree of synchronization between channels was evaluated by assessing the presence of liquid flow in the small part of the minichannels. It can be concluded that boiling is synchronized when small bubble flow or wavy annular flow occur in neighboring channels. The occurrence of slug flow in one channel causes the boiling in neighboring channels to become unsynchronized. The result of the image analysis shows that the correlation coefficient based on the evaluation of the presence of liquid flow in the small part of the minichannels over a long enough time period allows for the detection of boiling synchronization. |
| first_indexed | 2024-04-14T01:24:48Z |
| format | Article |
| id | doaj.art-c4d1599189e243c4afed36022a13b638 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T01:24:48Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-c4d1599189e243c4afed36022a13b6382022-12-22T02:20:31ZengMDPI AGEnergies1996-10732020-03-01136140910.3390/en13061409en13061409Boiling Synchronization in Two Parallel Minichannels—Image AnalysisGabriela Rafałko0Iwona Zaborowska1Hubert Grzybowski2Romuald Mosdorf3Department of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering Bialystok University of Technology, Wiejska 45 C, 15-351 Bialystok, PolandDepartment of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering Bialystok University of Technology, Wiejska 45 C, 15-351 Bialystok, PolandDepartment of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering Bialystok University of Technology, Wiejska 45 C, 15-351 Bialystok, PolandDepartment of Mechanics and Applied Computer Science, Faculty of Mechanical Engineering Bialystok University of Technology, Wiejska 45 C, 15-351 Bialystok, PolandIn this paper, the boiling synchronization of two-phase flow patterns in two parallel minichannels of 1 mm in diameter with connected compressible volumes was analyzed. The analysis was performed using images recorded with a high-speed camera. The degree of synchronization between channels was evaluated by assessing the presence of liquid flow in the small part of the minichannels. It can be concluded that boiling is synchronized when small bubble flow or wavy annular flow occur in neighboring channels. The occurrence of slug flow in one channel causes the boiling in neighboring channels to become unsynchronized. The result of the image analysis shows that the correlation coefficient based on the evaluation of the presence of liquid flow in the small part of the minichannels over a long enough time period allows for the detection of boiling synchronization.https://www.mdpi.com/1996-1073/13/6/1409two-phase flow instabilityimage analysisflow patternflow boilingboiling synchronization |
| spellingShingle | Gabriela Rafałko Iwona Zaborowska Hubert Grzybowski Romuald Mosdorf Boiling Synchronization in Two Parallel Minichannels—Image Analysis Energies two-phase flow instability image analysis flow pattern flow boiling boiling synchronization |
| title | Boiling Synchronization in Two Parallel Minichannels—Image Analysis |
| title_full | Boiling Synchronization in Two Parallel Minichannels—Image Analysis |
| title_fullStr | Boiling Synchronization in Two Parallel Minichannels—Image Analysis |
| title_full_unstemmed | Boiling Synchronization in Two Parallel Minichannels—Image Analysis |
| title_short | Boiling Synchronization in Two Parallel Minichannels—Image Analysis |
| title_sort | boiling synchronization in two parallel minichannels image analysis |
| topic | two-phase flow instability image analysis flow pattern flow boiling boiling synchronization |
| url | https://www.mdpi.com/1996-1073/13/6/1409 |
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