An Analytical Study of Mass Transfer Efficiency in Double-Pass Parallel-Plate Mass Exchangers under Uniform Wall Fluxes
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.<BR>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.
- Journal of chemical engineering of Japan
Journal of chemical engineering of Japan 39(12), 1243-1254, 2006-12-01