Device Performance Improvement of Double-Pass Concentric Circular Mass Exchangers under Uniform Wall Fluxes
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:否
國別:DEU
出版型式:電子版,紙本