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Membrane distillation - A theoretical study of evaporation through microporous membranes

Jönsson, Ann-Sofi LU ; Wimmerstedt, Roland LU and Harrysson, AC (1985) In Desalination 56. p.237-249
Abstract
Membrane distillation is a process in which, for example, water in a heated salt solution, evaporates through a porous membrane. The vapour condenses on a coolant surface on the other side of the membrane. The two liquid streams, the salt solution and the condensate, are separated by a highly porous hydrophobic membrane. Surface tension forces withhold liquids from the pores and prevent contact between the two liquids.



The temperature difference, causing a corresponding vapour pressure difference across the membrane, provides the driving force of the membrane distillation process. Evaporation will occur at the solution surface if the vapour pressure on the solution side is greater than the vapour pressure at the... (More)
Membrane distillation is a process in which, for example, water in a heated salt solution, evaporates through a porous membrane. The vapour condenses on a coolant surface on the other side of the membrane. The two liquid streams, the salt solution and the condensate, are separated by a highly porous hydrophobic membrane. Surface tension forces withhold liquids from the pores and prevent contact between the two liquids.



The temperature difference, causing a corresponding vapour pressure difference across the membrane, provides the driving force of the membrane distillation process. Evaporation will occur at the solution surface if the vapour pressure on the solution side is greater than the vapour pressure at the condensate surface. Vapours then diffuse through the pores to the cooler surface, where they condense.



The dependence of mass and heat transport upon different process and membrane parameters involved in membrane distillation has been investigated theoretically. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Desalination
volume
56
pages
237 - 249
publisher
Elsevier
external identifiers
  • wos:A1985AUL2100019
  • scopus:0001455368
ISSN
1873-4464
DOI
10.1016/0011-9164(85)85028-1
language
English
LU publication?
yes
id
dcc54211-15a1-4ea1-b255-92d5426e2026 (old id 3915598)
date added to LUP
2013-07-02 09:40:41
date last changed
2017-08-06 03:48:31
@article{dcc54211-15a1-4ea1-b255-92d5426e2026,
  abstract     = {Membrane distillation is a process in which, for example, water in a heated salt solution, evaporates through a porous membrane. The vapour condenses on a coolant surface on the other side of the membrane. The two liquid streams, the salt solution and the condensate, are separated by a highly porous hydrophobic membrane. Surface tension forces withhold liquids from the pores and prevent contact between the two liquids.<br/><br>
<br/><br>
The temperature difference, causing a corresponding vapour pressure difference across the membrane, provides the driving force of the membrane distillation process. Evaporation will occur at the solution surface if the vapour pressure on the solution side is greater than the vapour pressure at the condensate surface. Vapours then diffuse through the pores to the cooler surface, where they condense.<br/><br>
<br/><br>
The dependence of mass and heat transport upon different process and membrane parameters involved in membrane distillation has been investigated theoretically.},
  author       = {Jönsson, Ann-Sofi and Wimmerstedt, Roland and Harrysson, AC},
  issn         = {1873-4464},
  language     = {eng},
  pages        = {237--249},
  publisher    = {Elsevier},
  series       = {Desalination},
  title        = {Membrane distillation - A theoretical study of evaporation through microporous membranes},
  url          = {http://dx.doi.org/10.1016/0011-9164(85)85028-1},
  volume       = {56},
  year         = {1985},
}