Performance of solar adsorption cooling system with internal finned vacuum tube bed
Aiming to improve the performance of the solar adsorption cooling system using the silica gel-water as the working pair, a series of fin-enhanced vacuum tube bed have been developed and tested experimentally. The characteristics of the system were analyzed as the fin number changed between zero to e...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-06-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X22003094 |
| _version_ | 1817982817870544896 |
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| author | Zepeng Wang Zhongxian Yuan Chunxu Du Yimo Liu Jie Wang |
| author_facet | Zepeng Wang Zhongxian Yuan Chunxu Du Yimo Liu Jie Wang |
| author_sort | Zepeng Wang |
| collection | DOAJ |
| description | Aiming to improve the performance of the solar adsorption cooling system using the silica gel-water as the working pair, a series of fin-enhanced vacuum tube bed have been developed and tested experimentally. The characteristics of the system were analyzed as the fin number changed between zero to eight in the bed. It is revealed that longer time was needed for the preheating and desorption of the bed in a cycle because of the increase of the heat capacity of finned tube bed. Nevertheless, the fast heat transfer of the finned tube has resulted in a significant reduction of the pre-cooling time of the bed, which usually took the biggest part in the whole cycle time originally. The comprehensive result was the cycle time of the solar adsorption cooling system diminished, and the general performance of the system was improved. As evaluated under the criterion of the specific cooling power (SCP), it is found that the SCP2 of the finned system, which is defined by the cycle time, increased 37.4%–80.7% in comparison to the situation of the smooth tube bed. On the other hand, analyzing the coefficient of performance (COP) of the system has revealed that not always the more the internal fins, the better the performance result. The experimental results told us that the COP of the system reached the optimum as the fin number was equal to four. Over enhanced tube bed caused the performance of the adsorption cooling system to deteriorate. |
| first_indexed | 2024-04-13T23:25:14Z |
| format | Article |
| id | doaj.art-74c24526855b4721acacfd9442ad1f3b |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-13T23:25:14Z |
| publishDate | 2022-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-74c24526855b4721acacfd9442ad1f3b2022-12-22T02:25:05ZengElsevierCase Studies in Thermal Engineering2214-157X2022-06-0134102063Performance of solar adsorption cooling system with internal finned vacuum tube bedZepeng Wang0Zhongxian Yuan1Chunxu Du2Yimo Liu3Jie Wang4Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, ChinaCorresponding author.; Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, ChinaFaculty of Environment and Life, Beijing University of Technology, Beijing, 100124, ChinaFaculty of Environment and Life, Beijing University of Technology, Beijing, 100124, ChinaFaculty of Environment and Life, Beijing University of Technology, Beijing, 100124, ChinaAiming to improve the performance of the solar adsorption cooling system using the silica gel-water as the working pair, a series of fin-enhanced vacuum tube bed have been developed and tested experimentally. The characteristics of the system were analyzed as the fin number changed between zero to eight in the bed. It is revealed that longer time was needed for the preheating and desorption of the bed in a cycle because of the increase of the heat capacity of finned tube bed. Nevertheless, the fast heat transfer of the finned tube has resulted in a significant reduction of the pre-cooling time of the bed, which usually took the biggest part in the whole cycle time originally. The comprehensive result was the cycle time of the solar adsorption cooling system diminished, and the general performance of the system was improved. As evaluated under the criterion of the specific cooling power (SCP), it is found that the SCP2 of the finned system, which is defined by the cycle time, increased 37.4%–80.7% in comparison to the situation of the smooth tube bed. On the other hand, analyzing the coefficient of performance (COP) of the system has revealed that not always the more the internal fins, the better the performance result. The experimental results told us that the COP of the system reached the optimum as the fin number was equal to four. Over enhanced tube bed caused the performance of the adsorption cooling system to deteriorate.http://www.sciencedirect.com/science/article/pii/S2214157X22003094Solar energyAdsorption coolingHeat transfer enhancementFinned tube bed |
| spellingShingle | Zepeng Wang Zhongxian Yuan Chunxu Du Yimo Liu Jie Wang Performance of solar adsorption cooling system with internal finned vacuum tube bed Case Studies in Thermal Engineering Solar energy Adsorption cooling Heat transfer enhancement Finned tube bed |
| title | Performance of solar adsorption cooling system with internal finned vacuum tube bed |
| title_full | Performance of solar adsorption cooling system with internal finned vacuum tube bed |
| title_fullStr | Performance of solar adsorption cooling system with internal finned vacuum tube bed |
| title_full_unstemmed | Performance of solar adsorption cooling system with internal finned vacuum tube bed |
| title_short | Performance of solar adsorption cooling system with internal finned vacuum tube bed |
| title_sort | performance of solar adsorption cooling system with internal finned vacuum tube bed |
| topic | Solar energy Adsorption cooling Heat transfer enhancement Finned tube bed |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X22003094 |
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