Modification of Tunisian clay membrane surface by silane grafting: Application for desalination with Air Gap Membrane Distillation process

2011 ◽  
Vol 387 (1-3) ◽  
pp. 79-85 ◽  
Author(s):  
Sabeur Khemakhem ◽  
Raja Ben Amar
Keyword(s):  
Membrane Surface ◽  
Membrane Distillation ◽  
Air Gap ◽  
Distillation Process ◽  
Air Gap Membrane Distillation ◽  
Clay Membrane

Experimental Study and Numerical Simulation of the Air Gap Membrane Distillation (AGMD) Process

2016 ◽  
Vol 11 (1) ◽  
pp. 41-45 ◽  
Author(s):  
Ehsan Karbasi ◽  
Javad Karimi-Sabet ◽  
J. Mohammadi Roshandeh ◽  
M. A. Moosavian ◽  
H. Ahadi
Keyword(s):  
Numerical Simulation ◽  
Membrane Surface ◽  
Membrane Distillation ◽  
Air Gap ◽  
Operating Conditions ◽  
Permeate Flux ◽  
Air Gap Membrane Distillation ◽  
Temperature Polarization ◽  
Output Ratio ◽  
Cfd Method

Abstract Some challenges, including inappropriate distribution of currents on the membrane surface, poor hydrodynamics and existing severe temperature polarization (TP) phenomenon in MD modules, impede industrialization of MD process. Computational fluid dynamics (CFD) method was used for numerical simulation of hydrodynamics in air gap membrane distillation modules. One of two simulated modules in this work is a novel developed one in which heat and mass transfer data was compared with available literature data. Moreover, the effect of using baffles in module was investigated. Comparison between the novel module and conventional module indicates higher trans-membrane mass flux and gained output ratio (GOR) coefficient by 7% and 15%, respectively. Moreover, the effects of different operating conditions including feed temperatures and feed flow rates on permeate flux were investigated.

Driving force and activation energy in air-gap membrane distillation process

2015 ◽  
Vol 69 (11) ◽  
Author(s):  
Joanna Kujawa ◽  
Wojciech Kujawski
Keyword(s):  
Activation Energy ◽  
Transport Properties ◽  
Driving Force ◽  
Membrane Distillation ◽  
Air Gap ◽  
Water Fluxes ◽  
Distillation Process ◽  
Air Gap Membrane Distillation ◽  
Different Temperatures ◽  
The Impact

AbstractThe present study investigated the impact of the driving force (Δp) on the transport properties. All the experiments and calculations were performed for air-gap membrane distillation (AGMD). In the course of the experiments, it was found that an identical value of Δp could be attained by applying different values of feed and permeate temperatures. It was highlighted that constant values of water fluxes could be achieved using the constant driving force created by different temperatures. Moreover, the relation between ln(J

Experimental study of the optimal vacuum pressure in vacuum assisted air gap membrane distillation process

Desalination ◽  
2017 ◽  
Vol 414 ◽  
pp. 63-72 ◽  
Author(s):  
Zhiyu Liu ◽  
Qijun Gao ◽  
Xiaolong Lu ◽  
Zhong Ma ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Membrane Distillation ◽  
Air Gap ◽  
Vacuum Pressure ◽  
Distillation Process ◽  
Air Gap Membrane Distillation

scholarly journals Modeling of air-gap membrane distillation process: A theoretical and experimental study

2013 ◽  
Vol 445 ◽  
pp. 53-65 ◽  
Author(s):  
A.S. Alsaadi ◽  
N. Ghaffour ◽  
J.-D. Li ◽  
S. Gray ◽  
L. Francis ◽  
...  
Keyword(s):  
Experimental Study ◽  
Membrane Distillation ◽  
Air Gap ◽  
Distillation Process ◽  
Air Gap Membrane Distillation
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