Membrane distillation (MD) is a thermally driven separational program in which separation is 
enabled due to phase change. A hydrophobic membrane displays a barrier for the liquid phase, 
allowing the vapour phase (e.g. water vapour) to pass through the membrane's pores. 
The driving force of the process is given by a partial vapour pressure difference commonly 
triggered by a temperature difference. In DCMD, both sides of the membrane are charged with 
liquid- hot feed water on the evaporator side and cooled permeate on the permeate side. 
The condensation of the vapour passing through the membrane happens directly inside the 
liquid phase at the membrane boundary surface. Since the membrane is the only barrier 
blocking the mass transport, relatively high surface related permeate flows can be achieved 
with DCMD. 

 

**MatLab-SimuLink should be used to run the model.


Copyright © 2007 by Mohamed A. Sharaf Eldean Ayoub

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