Numerical Simulation of Heat Transfer Performance of a Dimpled Tubular Heat Exchanger
The processing of dimple on the outer wall of tube will produce corresponding protrusion dimple on the inner wall. The turbulent flow and heat transfer performance of a tubular heat exchanger containing a dimpled inner tube is studied numerically. The results show that the main reason for the enhanc...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/24/12965 |
| _version_ | 1797461571275849728 |
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| author | Zunce Wang Yimin Wang Jinglong Zhang Sen Li Yan Xu |
| author_facet | Zunce Wang Yimin Wang Jinglong Zhang Sen Li Yan Xu |
| author_sort | Zunce Wang |
| collection | DOAJ |
| description | The processing of dimple on the outer wall of tube will produce corresponding protrusion dimple on the inner wall. The turbulent flow and heat transfer performance of a tubular heat exchanger containing a dimpled inner tube is studied numerically. The results show that the main reason for the enhancement of heat transfer ability of the dimple is the flow vortex in the concave dimple and the shock to the wall induced by the protrusion dimple. Compared with the smooth wall of the tube, the maximum enhancement of heat transfer was 1.94 times in concave dimple and 2.74 times in protrusion dimple. By comparing the heat transfer performance, flow resistance, and comprehensive heat transfer factor of the tube and shell of different sizes of exchange heat pipe, it is determined that the combination of inner and outer wall dimple size of 10–15 mm is a structure with better comprehensive heat transfer performance. |
| first_indexed | 2024-03-09T17:21:17Z |
| format | Article |
| id | doaj.art-9b345a990d1040958e94a65ff418a1f3 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T17:21:17Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-9b345a990d1040958e94a65ff418a1f32023-11-24T13:07:48ZengMDPI AGApplied Sciences2076-34172022-12-0112241296510.3390/app122412965Numerical Simulation of Heat Transfer Performance of a Dimpled Tubular Heat ExchangerZunce Wang0Yimin Wang1Jinglong Zhang2Sen Li3Yan Xu4College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, ChinaCollege of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, ChinaCollege of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, ChinaCollege of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, ChinaCollege of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, ChinaThe processing of dimple on the outer wall of tube will produce corresponding protrusion dimple on the inner wall. The turbulent flow and heat transfer performance of a tubular heat exchanger containing a dimpled inner tube is studied numerically. The results show that the main reason for the enhancement of heat transfer ability of the dimple is the flow vortex in the concave dimple and the shock to the wall induced by the protrusion dimple. Compared with the smooth wall of the tube, the maximum enhancement of heat transfer was 1.94 times in concave dimple and 2.74 times in protrusion dimple. By comparing the heat transfer performance, flow resistance, and comprehensive heat transfer factor of the tube and shell of different sizes of exchange heat pipe, it is determined that the combination of inner and outer wall dimple size of 10–15 mm is a structure with better comprehensive heat transfer performance.https://www.mdpi.com/2076-3417/12/24/12965dimpletubular heat exchangerheat transfer performance |
| spellingShingle | Zunce Wang Yimin Wang Jinglong Zhang Sen Li Yan Xu Numerical Simulation of Heat Transfer Performance of a Dimpled Tubular Heat Exchanger Applied Sciences dimple tubular heat exchanger heat transfer performance |
| title | Numerical Simulation of Heat Transfer Performance of a Dimpled Tubular Heat Exchanger |
| title_full | Numerical Simulation of Heat Transfer Performance of a Dimpled Tubular Heat Exchanger |
| title_fullStr | Numerical Simulation of Heat Transfer Performance of a Dimpled Tubular Heat Exchanger |
| title_full_unstemmed | Numerical Simulation of Heat Transfer Performance of a Dimpled Tubular Heat Exchanger |
| title_short | Numerical Simulation of Heat Transfer Performance of a Dimpled Tubular Heat Exchanger |
| title_sort | numerical simulation of heat transfer performance of a dimpled tubular heat exchanger |
| topic | dimple tubular heat exchanger heat transfer performance |
| url | https://www.mdpi.com/2076-3417/12/24/12965 |
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