Orientation effects on liquid-vapor phase change heat transfer on nanoporous membranes

作者: Guodong Xia , Jiahao Wang , Wenbin Zhou , Dandan Ma , Jun Wang

DOI: 10.1016/J.ICHEATMASSTRANSFER.2020.104934

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摘要: Liquid-vapor phase change heat transfer on nanoporous membranes in facing horizontal upwards, downwards and vertically was investigated. Anodic aluminum oxide (AAO) membranes were as the nanoporous substrates. Water was supplied through nanoporous membranes by pressure difference. Heat transfer characteristics and temperature instability were analyzed and compared among three orientations. Results showed that negative slope and “special points” appeared on boiling curves. The interaction between liquid film …

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