[1]方书起,武晓伟.垂直管外降膜流动特性研究[J].郑州大学学报(工学版),2014,35(02):88-92.[doi:10.3969/jissn.1671 -6833.2014.02.020]
　FANG Shuqi,WU Xiaowei.Research on the Flow Characteristics in Falling Film Outside theVertical Tube for Liquid Film[J].Journal of Zhengzhou University (Engineering Science),2014,35(02):88-92.[doi:10.3969/jissn.1671 -6833.2014.02.020]
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垂直管外降膜流动特性研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
35
期数:
2014年02期
页码:
88-92
栏目:
出版日期:
2014-04-30

文章信息/Info

Title:
Research on the Flow Characteristics in Falling Film Outside theVertical Tube for Liquid Film
作者:
方书起; 武晓伟
Author(s):
FANG Shuqi; WU Xiaowei
1. School of Chemical Engineering and Energy, Zhengzhou University, 2hengzhou 450001 , China; 2. Lwoyang 725 Ship Mate-rial Research Institute , China Shipbuilding Industry Corporation, Luoyang 471000 , China
Keywords:
vertical tube falling film;  annulus gap;  film flow;  flow-rate coeficient
DOI:
10.3969/jissn.1671 -6833.2014.02.020
文献标志码:
A
Abstract:
The liquid appears as film flow when spray onto outside of heat exchanger tubes due to gravity. Thecondition of filming affeets the heat and mass transer of heat exehanger tubes signifieantly. The film annulargap size should be 1. 3 ~2.0 mm based on the previous experimental research. The theoretical analysis waseondueted on liquid film flow charaeteristies of the falling film outside the vertieal tube, and a comparison wasmade between the analysis and the experimental researeh with the different eoneentration of lithium bromidesolution is similar in present work. The relationship of the llow-rate eoelficients is eorrelated in terms of theReynolds number of lithium bromide solution in vertical tube falling films.
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