Effect of annular ribs in heat exchanger tubes on the performance of phase‐change regenerative heat exchangers
Abstract Optimizing the efficiency of conventional heat exchangers is critical for improving the performance of various processes. This study proposed increasing the heat dissipation buffer space of heat exchangers by filling the gap between the heat exchanger and the shell with phase‐change materia...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-08-01
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| Series: | Energy Science & Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ese3.1493 |
| _version_ | 1797384189139484672 |
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| author | Chuanhui Zhu Zhehao Lin Wei Liu Qian Liu Shubin Yan |
| author_facet | Chuanhui Zhu Zhehao Lin Wei Liu Qian Liu Shubin Yan |
| author_sort | Chuanhui Zhu |
| collection | DOAJ |
| description | Abstract Optimizing the efficiency of conventional heat exchangers is critical for improving the performance of various processes. This study proposed increasing the heat dissipation buffer space of heat exchangers by filling the gap between the heat exchanger and the shell with phase‐change materials for optimizing phase‐change heat exchangers. Comparative simulation analyses were performed by investigating the difference between the internal and external diameters of the inner ring ribs of the heat exchanger, the flow rate of the cooling liquid, the spacing distance, and the number of the inner ring ribs as independent variables. The results revealed that the heat transfer efficiency of heat exchangers can be improved by adding the inner ring rib structure to the heat exchange copper tube. The difference between the inner and outer diameters of the inner ring rib considerably influences heat dissipation. Furthermore, a sensitivity coefficient of 0.2457 can be obtained. The distance and number of inner ring ribs and the flow rate of cooling liquid exhibit certain effects on the heat transfer efficiency of the heat exchanger. The sensitivity coefficients were 0.1477 and 0.0935. The heat dissipation efficiency of the coil heat exchanger was improved by 3.8% by adding inner ring ribs in the coil heat exchanger channel. |
| first_indexed | 2024-03-08T21:31:54Z |
| format | Article |
| id | doaj.art-18dcb316184f4fd99ff090a040e33c25 |
| institution | Directory Open Access Journal |
| issn | 2050-0505 |
| language | English |
| last_indexed | 2024-03-08T21:31:54Z |
| publishDate | 2023-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Energy Science & Engineering |
| spelling | doaj.art-18dcb316184f4fd99ff090a040e33c252023-12-21T06:55:47ZengWileyEnergy Science & Engineering2050-05052023-08-011182809281710.1002/ese3.1493Effect of annular ribs in heat exchanger tubes on the performance of phase‐change regenerative heat exchangersChuanhui Zhu0Zhehao Lin1Wei Liu2Qian Liu3Shubin Yan4The College of Electrical Engineering Zhejiang University of Water Resources and Electric Power Zhejiang ChinaThe College of Electrical Engineering Zhejiang University of Water Resources and Electric Power Zhejiang ChinaThe College of Electrical Engineering Zhejiang University of Water Resources and Electric Power Zhejiang ChinaThe College of Electrical Engineering Zhejiang University of Water Resources and Electric Power Zhejiang ChinaThe College of Electrical Engineering Zhejiang University of Water Resources and Electric Power Zhejiang ChinaAbstract Optimizing the efficiency of conventional heat exchangers is critical for improving the performance of various processes. This study proposed increasing the heat dissipation buffer space of heat exchangers by filling the gap between the heat exchanger and the shell with phase‐change materials for optimizing phase‐change heat exchangers. Comparative simulation analyses were performed by investigating the difference between the internal and external diameters of the inner ring ribs of the heat exchanger, the flow rate of the cooling liquid, the spacing distance, and the number of the inner ring ribs as independent variables. The results revealed that the heat transfer efficiency of heat exchangers can be improved by adding the inner ring rib structure to the heat exchange copper tube. The difference between the inner and outer diameters of the inner ring rib considerably influences heat dissipation. Furthermore, a sensitivity coefficient of 0.2457 can be obtained. The distance and number of inner ring ribs and the flow rate of cooling liquid exhibit certain effects on the heat transfer efficiency of the heat exchanger. The sensitivity coefficients were 0.1477 and 0.0935. The heat dissipation efficiency of the coil heat exchanger was improved by 3.8% by adding inner ring ribs in the coil heat exchanger channel.https://doi.org/10.1002/ese3.1493heat exchangerinner ring ribliquid coolingparaffin |
| spellingShingle | Chuanhui Zhu Zhehao Lin Wei Liu Qian Liu Shubin Yan Effect of annular ribs in heat exchanger tubes on the performance of phase‐change regenerative heat exchangers Energy Science & Engineering heat exchanger inner ring rib liquid cooling paraffin |
| title | Effect of annular ribs in heat exchanger tubes on the performance of phase‐change regenerative heat exchangers |
| title_full | Effect of annular ribs in heat exchanger tubes on the performance of phase‐change regenerative heat exchangers |
| title_fullStr | Effect of annular ribs in heat exchanger tubes on the performance of phase‐change regenerative heat exchangers |
| title_full_unstemmed | Effect of annular ribs in heat exchanger tubes on the performance of phase‐change regenerative heat exchangers |
| title_short | Effect of annular ribs in heat exchanger tubes on the performance of phase‐change regenerative heat exchangers |
| title_sort | effect of annular ribs in heat exchanger tubes on the performance of phase change regenerative heat exchangers |
| topic | heat exchanger inner ring rib liquid cooling paraffin |
| url | https://doi.org/10.1002/ese3.1493 |
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