Modeling of Heat transfer in membrane distillation
Paper ID : 1310-MST2015-FULL
etesam ganjian *1, majid peyravi2, ali asghar ghoreyshi1, mohsen jahanshahi2
1babol university of technology,babol,iran
2Membrane Research Group, Nanobiotechnology Institute, Babol University of Technology, Babol, Iran
Membrane distillation (MD) is one of the non-isothermal membrane separation
processes used in various applications such desalination, environmental/waste
cleanup, food, etc. the membranes to be used in membrane distillation (MD) must be porous and hydrophobic. In this paper The influence of mass transfer on heat transfer rates and on the heat transfer coefficient was identified, and the relative significance of each heat transfer mechanism was evaluated. The role of spacers in heat transfer improvement was analyzed. In DCMD, the temperature of the feed solution is below its boiling point. It can vary between few degrees over the ambient temperature (about 30 C) to 90 C. The temperature of the feed and
permeate solutions is measured at both the inlet and outlet of the membrane
module. The feed and permeate pressures are close to the atmospheric pressure The heat transfer correlations were implemented in a physical model of the MD process and the applicability of the model was validated.
Membrane distillation, heat transfer,membrane separation
Status : Paper Accepted (Poster Presentation)