An Analytical Study of Mass Transfer Efficiency in Double-Pass Parallel-Plate Mass Exchangers under Uniform Wall Fluxes

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Chii-Dong Ho¹  Jr-Wei Tu¹  Jiun-Jiau Fu¹ 

[1] Department of Chemical and Materials Engineering, Tamkang University

关键词: Mass Transfer;    Parallel-Plate Channel;    Double-Pass Operation;    Uniform Wall Fluxes;    Conjugated Graetz Problems;   

DOI  :  10.1252/jcej.39.1243

来源: Maruzen Company Ltd

【 摘 要 】

References(30)Cited-By(2)A permeable barrier was inserted to divide an open duct into two subchannels of uniform wall fluxes for conducting double-pass laminar countercurrent operations. The mass transfer rate of such a double-pass device was substantially improved and has been investigated theoretically by using an eigenfunction expansion in power series.The theoretical predictions of mass-transfer efficiency enhancement in double-pass parallel-plate mass exchangers were represented graphically and compared with those in an open duct of single-pass operation (without a permeable barrier inserted). The results show that the double-pass operation can effectively enhance the mass transfer efficiency and especially when the permeable-barrier position is appropriately adjusted.

【 授权许可】

Unknown