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Device Performance Improvement of Double-Pass Concentric Circular Mass Exchangers under Uniform Wall Fluxes

類別:期刊論文

學年 / 學期:95-2

出版日期:2007-04-01 00:00:00

著者:Ho, Chii-dong; Chuang, Yu-chuan; Tu, Jr-wei

單位:淡江大學化學工程與材料工程學系

出版者:Wiley-Blackwell

著錄名稱、卷期、頁數:Chemical Engineering and Technology 30(4), pp.431-442

摘要:A double-pass concentric circular mass exchanger under uniform wall fluxes is produced by inserting a permeable barrier into a circular tube to improve the device performance. The mathematical formulation was developed theoretically for such double-pass, forced-convection, mass-transfer problems which are referred to as conjugated Graetz problems. The analytical solutions are obtained by the linear superposition of an asymptotic solution and a homogeneous solution which are linear in the axial direction and solved with the use of an eigenfunction expansion in a power series. The analytical results show that the mass-transfer rate of a double-pass mass exchanger can be improved compared to that of a single-pass mass exchanger by suitably adjusting the permeable barrier position. Moreover, the ratio of mass-transfer efficiency improvement and power consumption increment is also shown to make good economic sense.

語言:en

ISSN:1521-4125 0930-7516

期刊性質:國外

收錄於:SCI EI

審稿制度:

國別:DEU

出版型式:電子版,紙本