Using Spacers in MD Channels

A.M. Alklaibi
Technical college, Jeddah, Saudi Arabia

A membrane distillation process equipped with mesh-type material spacers has been modeled as a two-dimensional conjugate problem in which a simultaneous numerical solution of the momentum and energy of the feed and cold solutions have been carried out.

The results shows that the center suspended spacer produces the highest average shear stress, and gives the highest spacer efficiency at all tested velocities. Also the presence of the spacer causes a several-fold rise in the pressure drop along the channel.

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