| Dynamics and heat-transfer characteristics of the liquid film flow in upward- and vertical-facing spray cooling | |
Yang, Zhuqiang1; Chen, Yin1,2; Zhao X(赵霄)2; Li K(李凯)2,3 ; Zhao JF(赵建福)2,3
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| Corresponding Author | Zhao, Xiao([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
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| 2024-11-15 | |
| Volume | 233Pages:16 |
| ISSN | 0017-9310 |
| Abstract | In this study, an experimental investigation was conducted on the dynamics and heat-transfer characteristics of liquid film flow for upward- and vertical-facing spray cooling. The heat-transfer performances at different inlet pressures, nozzle-to-surface distances, and heat flux inputs between the two orientations were compared, and the morphologies, wetted areas, and velocities of the isolated liquid films were quantitatively captured. The morphologies of the HFE-7100 liquid films and their distributions on the vertical and upward surfaces exhibited no significant differences. In most cases, the heat-transfer performance of the upward surface was slightly better than that of the vertical surface. Gravity affected the velocity of the isolated liquid films on a smooth vertical surface, whereas its effect was significantly suppressed on an unpolished surface. The Bond number of the isolated liquid film flow on the upward surface was verified to be naturally smaller than that on the vertical surface. Dimensionless groups, including the Bo, We, and Re numbers of the liquid film flow in spray cooling, were obtained to further account for the effect of gravity. The reason why the dimensionless groups presented such small orders was explained. The data map of liquid film flow (dimensionless groups) during spray cooling was further enriched. |
| Keyword | Spray cooling Surface orientation Liquid film Gravity effect |
| DOI | 10.1016/j.ijheatmasstransfer.2024.125995 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001285180400001 |
| WOS Keyword | BOILING REGIMES ; SINGLE-PHASE ; WATER SPRAY ; THICKNESS ; GRAVITY ; SURFACE ; VISUALIZATION |
| WOS Research Area | Thermodynamics ; Engineering ; Mechanics |
| WOS Subject | Thermodynamics ; Engineering, Mechanical ; Mechanics |
| Funding Project | National Natural Science Foundation of China[52106077] ; Young Elite Scientists Sponsorship Program by CAST[2022QNRC001] ; National Key R & D Program of China[2022YFF0503502] ; Science Center for Gas Turbine Project[P2022-B-11-022-001] |
| Funding Organization | National Natural Science Foundation of China ; Young Elite Scientists Sponsorship Program by CAST ; National Key R & D Program of China ; Science Center for Gas Turbine Project |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Zhao, Xiao |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/96287 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.Dalian Univ Technol, Sch Energy & Power Engn, Liaoning Key Lab Complex Energy Convers & Utilisat, Dalian 116024, Peoples R China; 2.Chinese Acad Sci, Inst Mech, CAS Key Lab Micrograv, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Yang, Zhuqiang,Chen, Yin,Zhao X,et al. Dynamics and heat-transfer characteristics of the liquid film flow in upward- and vertical-facing spray cooling[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2024,233:16.Rp_Au:Zhao, Xiao |
| APA | Yang, Zhuqiang,Chen, Yin,赵霄,李凯,&赵建福.(2024).Dynamics and heat-transfer characteristics of the liquid film flow in upward- and vertical-facing spray cooling.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,233,16. |
| MLA | Yang, Zhuqiang,et al."Dynamics and heat-transfer characteristics of the liquid film flow in upward- and vertical-facing spray cooling".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 233(2024):16. |
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