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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Falling-film column ： ウィキペディア英語版 Falling-film column A falling-film column (or wetted-wall column) is a particular chemical equipment used to achieve mass and heat transfer between two fluid phases (in general one gas phase and one liquid phase). It is essentially formed by a vertical tube-shaped vessel: the liquid stream flows through the inner wall of the tube and the gas stream flows in correspondence of the centre of the tube. == Description == In the most common case, the column contains one liquid stream and one gas stream. The liquid forms a thin film that covers the inner surface of the vessel,〔Binay K. Dutta, Principles of Mass Transfer and Separation Processes, Nuova Delhi, Prentice-Hall of India Private Limited, 2007, p. 91. ISBN 8120329902.〕 instead the gas stream is normally injected from the bottom of the column, so the two fluids are subjected to a counter-current exchange of matter and heat, that happens in correspondence of the gas-liquid interface. Sometimes, the same equipment is used to achieve the co-current mass and heat transfer between to immiscible liquids.〔Satoru Asai, Junichi Hatanaka , Toshiya Kimura , Hidekazu Yoshizawa, Mass transfer in wetted-wall column with cocurrent laminar liquid-liquid flow in Industrial & Engineering Chemistry Research, vol. 26, n. 3, ACS Publications, marzo 1987, pp. pp. 483–488. DOI:10.1021/ie00063a014.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Falling-film column」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.