Enhanced boiling heat transfer from different surfaces in narrow space
文献类型:期刊论文
作者 | Lin, ZP; Ma, TZ; Zhang, ZF; Zhang, LC |
刊名 | JOURNAL OF ENHANCED HEAT TRANSFER
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出版日期 | 2001 |
卷号 | 8期号:6页码:373-381 |
关键词 | boiling heat transfer enhanced boiling porous surfaces narrow space critical heat flux local heat transfer |
英文摘要 | The investigation of saturated boiling heat transfer was performed from different surfaces in narrow space formed by two concentric tubes with two open ends at atmospheric pressure. The boiling liquid was ethanol and distilled water. The 300-mm-long outer tubes whose inner surfaces acted as boiling surfaces were heated. The inner surfaces of the heated tubes were plain surfaces, surfaces with axial rectangular grooves, and sintered porous surfaces, respectively. The stainless steel tubes with different diameter were inserted into the heated tubes. The gap sizes between the two tubes were 0.41similar to12.35 mm for the plain outer tubes, 0.71similar to12.65 mm. for the grooved tubes, and 0.5similar to15.5 mm for the sintered porous tubes. Experimental results show that for the plain tubes, with the inserted inner tubes, the boiling heat transfer coefficients increase with a decrease in gap size. The Bond number has important effects on boiling heat transfer. The boiling critical heat flux was found to decrease with decreasing gap size. For the grooved tubes, with inserted tubes, the variation of the boiling heat transfer coefficient with decrease of gap size is the same as that for the plain tubes, with inserted tube but the enhancement of the grooved surfaces on boiling in narrow spaces is better than that of the plain tube. The grooved surfaces can also augment the critical heat flux. Sintered porous surfaces, in pool boiling, can enhance boiling heat transfer, but the boiling heat transfer from these surfaces is affected little by the gap size. The experimental results also show that the local boiling heat transfer coefficients vary with the height of the heated tubes. |
WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
类目[WOS] | Thermodynamics ; Engineering, Mechanical |
研究领域[WOS] | Thermodynamics ; Engineering |
关键词[WOS] | VERTICAL RECTANGULAR CHANNEL ; BUBBLES |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000175814100002 |
公开日期 | 2015-12-22 |
源URL | [http://ir.etp.ac.cn/handle/311046/106122] ![]() |
专题 | 工程热物理研究所_中国科学院工程热物理所(论文库)_期刊论文(SCI) |
作者单位 | Chinese Acad Sci, Inst Engn Thermophys, Beijing 100080, Peoples R China |
推荐引用方式 GB/T 7714 | Lin, ZP,Ma, TZ,Zhang, ZF,et al. Enhanced boiling heat transfer from different surfaces in narrow space[J]. JOURNAL OF ENHANCED HEAT TRANSFER,2001,8(6):373-381. |
APA | Lin, ZP,Ma, TZ,Zhang, ZF,&Zhang, LC.(2001).Enhanced boiling heat transfer from different surfaces in narrow space.JOURNAL OF ENHANCED HEAT TRANSFER,8(6),373-381. |
MLA | Lin, ZP,et al."Enhanced boiling heat transfer from different surfaces in narrow space".JOURNAL OF ENHANCED HEAT TRANSFER 8.6(2001):373-381. |
入库方式: OAI收割
来源:工程热物理研究所
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