| Experimental Study of Nucleate Pool Boiling of Fc-72 on Smooth Surface Under Microgravity | |
Xue YF; Zhao JF(赵建福) ; Wei JJ; Li J(李晶); Guo D; Wan SX(万士昕); Wei, JJ (reprint author), Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Sch Energy & Power Engn, Xian 710049, Peoples R China.
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| Source Publication | MICROGRAVITY SCIENCE AND TECHNOLOGY
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| 2011 | |
| Volume | 23Pages:S75-S85 |
| ISSN | 0938-0108 |
| Abstract | Experiments of highly subcooled nucleate pool boiling of FC-72 with dissolved air were studied both in short-term microgravity condition utilizing the drop tower Beijing and in normal gravity conditions. The bubble behavior and heat transfer of air-dissolved FC-72 on a small scale silicon chip (10 x 10 x 0.5 mm(3)) were obtained at the bulk liquid subcooling of 41 K and nominal pressure of 102 kPa. The boiling heat transfer performance in low heat flux region in microgravity is similar to that in normal gravity condition, while vapor bubbles increase in size but little coalescence occurs among bubbles, and then forms a large bubble remains attached to the heater surface during the whole microgravity period. Thermocapillary convection may be an important mechanism of boiling heat transfer in this case. With further increasing in heat flux to the fully developed nucleate boiling region, the vapor bubbles number as well as their size significantly increase in microgravity. Rapid coalescence occurs among adjacent bubbles and then the coalesced large bubble can depart from the heating surface during the microgravity period. The reason of the large bubble departure is mainly attributed to the momentum effects caused by the coalescence of small bubbles with the large one. Hence, the steady-state pool boiling can still be obtained in microgravity. In the high heat flux regime near the critical heat flux, significant deterioration of heat transfer was observed, and a large coalesced bubble forms quickly and almost covers the whole heater surface, leading to the occurrence of the critical heat flux in microgravity condition. |
| Keyword | Microgravity Pool Boiling Heat Transfer Thermocapillary Convection Coalescence |
| DOI | 10.1007/s12217-011-9274-5 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000208739100010 |
| WOS Research Area | Engineering ; Thermodynamics ; Mechanics |
| WOS Subject | Engineering, Aerospace ; Thermodynamics ; Mechanics |
| Funding Organization | National Natural Science Foundation of China [50806057, 10972225] ; program for new century excellent talents in university [NCET-07-0608] |
| Department | NML微重力两相流与燃烧 |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/58583 |
| Collection | 微重力重点实验室 |
| Corresponding Author | Wei, JJ (reprint author), Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Sch Energy & Power Engn, Xian 710049, Peoples R China. |
| Recommended Citation GB/T 7714 | Xue YF,Zhao JF,Wei JJ,et al. Experimental Study of Nucleate Pool Boiling of Fc-72 on Smooth Surface Under Microgravity[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2011,23:S75-S85. |
| APA | Xue YF.,赵建福.,Wei JJ.,李晶.,Guo D.,...&Wei, JJ .(2011).Experimental Study of Nucleate Pool Boiling of Fc-72 on Smooth Surface Under Microgravity.MICROGRAVITY SCIENCE AND TECHNOLOGY,23,S75-S85. |
| MLA | Xue YF,et al."Experimental Study of Nucleate Pool Boiling of Fc-72 on Smooth Surface Under Microgravity".MICROGRAVITY SCIENCE AND TECHNOLOGY 23(2011):S75-S85. |
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| JourArSuppl2016-015.（557KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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