期刊
JOURNAL OF MEMBRANE SCIENCE
卷 321, 期 2, 页码 356-363出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2008.05.018
关键词
direct contact membrane distillation; flow rate through the cell; heat transfer; Nusselt number; Dusty-Gas model
Direct contact membrane distillation (DCMD) experiments using distilled water are reported. Influence on the process of feed and permeate flow rates through the cell has been investigated in a wide flow range, from 2 to 8l/min. Two main effects have been studied, its effect on the heat transfer coefficient and on the effective membrane thickness. An empiric dependence of the membrane thickness with linear velocity through the cell has been included in the equation for mass flux through the membrane obtained from the Dusty-Gas model with satisfactory results. (C) 2008 Elsevier BY. All rights reserved.
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