Thermal performance and flow pattern of an immersion spray array cooling vapor chamber
An immersion spray array cooling vapor chamber (ISVC) is proposed for high-power electronic devices. Experimental and numerical studies on thermal performance and flow pattern have been conducted. It is shown that increasing the inlet temperature of the coolant facilitates the heat transfer performa...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/170670 |
| _version_ | 1811677365862924288 |
|---|---|
| author | Yi, Li Duan, Fei Pan, Minqiang |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Yi, Li Duan, Fei Pan, Minqiang |
| author_sort | Yi, Li |
| collection | NTU |
| description | An immersion spray array cooling vapor chamber (ISVC) is proposed for high-power electronic devices. Experimental and numerical studies on thermal performance and flow pattern have been conducted. It is shown that increasing the inlet temperature of the coolant facilitates the heat transfer performance and temperature uniformity of the ISVC within the safe working temperature range of electronic devices. The immersed spray impingement process includes a stage of velocity reduction from the nozzle exit to the target surface, a process of velocity boundary layer formation on the target surface, and a flow collision region formation process of adjacent sprays. As the inlet flow rate increases, the effect of the spray on the target surface is enhanced and the interaction between adjacent sprays is stronger. The perturbation effect of the spray on the fluid in the impingement cavity is positively influenced by the inlet flow rate. The spray array has a strong stirring effect on the water in the spray chamber in the XY, XZ and YZ planes. The heat transfer capacity of the ISVC is enhanced with a larger inlet flow rate due to the enhanced spray effect and larger spray coverage area. The temperature uniformity of the ISVC is improved with an increase of flow rate. The ISVC operating limit heating powers of 2.0 L/min, 4.0 L/min and 7.0 L/min flow rates are 531 W, 575 W and 600 W. Compared to the existing integrated heat sink combined vapor chamber and array jet impingement, the operating limit heating power of ISVC is increased by at least 68%. |
| first_indexed | 2024-10-01T02:36:13Z |
| format | Journal Article |
| id | ntu-10356/170670 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:36:13Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1706702023-09-25T08:18:18Z Thermal performance and flow pattern of an immersion spray array cooling vapor chamber Yi, Li Duan, Fei Pan, Minqiang School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Spray Cooling Vapor Chamber An immersion spray array cooling vapor chamber (ISVC) is proposed for high-power electronic devices. Experimental and numerical studies on thermal performance and flow pattern have been conducted. It is shown that increasing the inlet temperature of the coolant facilitates the heat transfer performance and temperature uniformity of the ISVC within the safe working temperature range of electronic devices. The immersed spray impingement process includes a stage of velocity reduction from the nozzle exit to the target surface, a process of velocity boundary layer formation on the target surface, and a flow collision region formation process of adjacent sprays. As the inlet flow rate increases, the effect of the spray on the target surface is enhanced and the interaction between adjacent sprays is stronger. The perturbation effect of the spray on the fluid in the impingement cavity is positively influenced by the inlet flow rate. The spray array has a strong stirring effect on the water in the spray chamber in the XY, XZ and YZ planes. The heat transfer capacity of the ISVC is enhanced with a larger inlet flow rate due to the enhanced spray effect and larger spray coverage area. The temperature uniformity of the ISVC is improved with an increase of flow rate. The ISVC operating limit heating powers of 2.0 L/min, 4.0 L/min and 7.0 L/min flow rates are 531 W, 575 W and 600 W. Compared to the existing integrated heat sink combined vapor chamber and array jet impingement, the operating limit heating power of ISVC is increased by at least 68%. This research was supported by National Natural Science Foundation of Guangdong, China, No.2022A1515011911. Thanks for the financial support from the program of China Scholarships Council (CSC No. 202106150067). 2023-09-25T08:18:17Z 2023-09-25T08:18:17Z 2023 Journal Article Yi, L., Duan, F. & Pan, M. (2023). Thermal performance and flow pattern of an immersion spray array cooling vapor chamber. International Journal of Heat and Mass Transfer, 202, 123737-. https://dx.doi.org/10.1016/j.ijheatmasstransfer.2022.123737 0017-9310 https://hdl.handle.net/10356/170670 10.1016/j.ijheatmasstransfer.2022.123737 2-s2.0-85145597969 202 123737 en International Journal of Heat and Mass Transfer © 2022 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Spray Cooling Vapor Chamber Yi, Li Duan, Fei Pan, Minqiang Thermal performance and flow pattern of an immersion spray array cooling vapor chamber |
| title | Thermal performance and flow pattern of an immersion spray array cooling vapor chamber |
| title_full | Thermal performance and flow pattern of an immersion spray array cooling vapor chamber |
| title_fullStr | Thermal performance and flow pattern of an immersion spray array cooling vapor chamber |
| title_full_unstemmed | Thermal performance and flow pattern of an immersion spray array cooling vapor chamber |
| title_short | Thermal performance and flow pattern of an immersion spray array cooling vapor chamber |
| title_sort | thermal performance and flow pattern of an immersion spray array cooling vapor chamber |
| topic | Engineering::Mechanical engineering Spray Cooling Vapor Chamber |
| url | https://hdl.handle.net/10356/170670 |
| work_keys_str_mv | AT yili thermalperformanceandflowpatternofanimmersionsprayarraycoolingvaporchamber AT duanfei thermalperformanceandflowpatternofanimmersionsprayarraycoolingvaporchamber AT panminqiang thermalperformanceandflowpatternofanimmersionsprayarraycoolingvaporchamber |