Experimental and theoretical evaluation of temperature polarization phenomenon in direct contact membrane distillation

•A cell was designed specifically to measure temperature polarization in MD.•Sixteen sensors monitor temperature at membrane surfaces and in the bulk.•The effect of various parameters on heat and mass transfer phenomena was explored.•A good agreement between experimental and theoretical results has...

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Bibliographic Details
Published in:Chemical engineering research & design 2013-10, Vol.91 (10), p.1966-1977
Main Authors: Ali, A., Macedonio, F., Drioli, E., Aljlil, S., Alharbi, O.A.
Format: Article
Language:English
Subjects:
Chemical engineering
Chemical engineers
Contact
Distillation
Effect of solution concentration
Fluid dynamics
Heat and mass transfer
Mass transfer
Membrane distillation
Membranes
Polarization
Specifically designed cell
Thermal polarization
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Summary:•A cell was designed specifically to measure temperature polarization in MD.•Sixteen sensors monitor temperature at membrane surfaces and in the bulk.•The effect of various parameters on heat and mass transfer phenomena was explored.•A good agreement between experimental and theoretical results has been observed. Heat and mass transfer in direct contact membrane distillation (MD) has been analyzed by using a specifically designed cell. In particular, the cell has sixteen sensors located at specific locations within its body to measure the bulk and membrane surface temperatures on both feed and permeate sides. The effect of various hydrodynamic and thermal conditions on heat and mass transport in direct contact membrane distillation has been investigated experimentally. The effect of solution concentration and thermal polarization on membrane distillation performance has been explored quantitatively. A good agreement between the experimental and theoretical results has been observed.
ISSN:0263-8762
1744-3563
DOI:10.1016/j.cherd.2013.06.030