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标题:Theoretical research of convective condensation heat transfer for mixture gas on a horizontal tube
时间:2019-11-19 16:12:05
DOI:10.1002/htj.20169
作者:Dongmei Wu; Li Jia
关键词:mixture gas;condensation heat transfer;horizontal tube;
摘要:Abstract The mechanism of convective condensation heat transfer of moist mixed gas across a horizontal tube was studied in this paper. The models referring to how the liquid film flows and the heat transfers on the tube are set up by combining modified film model and Nusselt condensation theory. The effects of Re number, wall temperature, and water vapor concentration on condensation heat transfer are discussed. Results predict that the film thickness profile on the tube is influenced greatly by vapor shear force on liquid film. Local Nusselt number depends remarkably on gas phase heat resistance, which is different from pure vapor and very similar to single-phase gas. © 2007 Wiley Periodicals, Inc. Heat Trans Asian Res, 36(6): 324–333, 2007; Published online in Wiley InterScience ( www.interscience.wiley.com). DOI 10.1002/htj.20169
大小:288 kb
页数:11 PAGES
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