Loading...

Preparation and characterization of PES and PSU membrane humidifiers

Samimi, A ; Sharif University of Technology

1085 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.memsci.2011.08.043
  3. Abstract:
  4. Polysulfone (PSU) and polyethersulfone (PES) porous membranes; and mixed polymer with nanoparticles TiO2, were prepared for air humidification. The mechanical properties and morphology of these membranes were studied by Tensile tester and SEM/EDX. The effects of membrane composition and operating factors on humidifier performance were investigated. The results revealed that the membrane composition and its structure have significant effect on humidification. The porous membranes with finger type cavities had higher humidification performance but lower mechanical properties. Water flux of the membranes was about 0.16-0.2L/hm2 at 25°C. Furthermore, adding 0.1wt% TiO2 nanoparticles to casting solution enhanced the humidification. Water flux of the membranes with TiO2 nanoparticles was about 0.18-0.22L/hm2 at 25°C. Relative humidity of outlet gas was decreased by increasing the gas flow rate and pressure. An increase in system temperature caused the relative humidity of the outlet gas to decrease
  5. Keywords:
  6. Mechanical properties ; Membrane humidifier ; Morphology ; Porous membrane ; TiO2 nanoparticles ; Casting solutions ; Membrane composition ; Membrane humidifier ; Membrane humidifiers ; Mixed polymers ; Outlet gas ; Polyethersulfones ; Porous membranes ; System temperature ; Tensile testers ; TiO ; Water flux ; Ethers ; Nanoparticles ; Titanium dioxide ; Membranes ; Nanoparticle ; Polyethersulfone ; Polysulfone ; Article ; Flow rate ; Gas flow ; Humidifier ; Humidity ; Membrane ; Performance ; Physicochemical model ; Pressure ; Priority journal ; Temperature sensitivity
  7. Source: Journal of Membrane Science ; Volume 383, Issue 1-2 , 2011 , Pages 197-205 ; 03767388 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S0376738811006326