Membrane filtration is a vital industrial process, with applications including air purification and blood filtration. In this paper, we study the optimal design for concertinaed membrane composed of angled porous membranes dead-ends. We examine how filter performance depends on angle, position, thickness, permeance membrane, through combination numerical asymptotic approaches, latter in limit s...

In this paper, the role of vertical component of surface tension of a droplet on the elastic deformation of a finite-thickness flexible membrane was theoretically analyzed using Hankel transformation. The vertical displacement at the surface was derived and can be reduced to Lester's or Rusanov's solutions when the thickness is infinite. Moreover, some simulations of the effect of a liquid drop...

This work presents a novel method based on the micromachined acoustic wave sensor for evaluating silicon membrane thickness. Like pressure sensors, accelerometers, micro flow sensors and micropumps, many micro-electro-mechanical systems (MEMS) devices require that silicon membrane thickness be known exactly. Precisely controlling silicon membrane thickness during wet etching is important, becau...

Utilization of membrane humidifiers is one of the methods commonly used to humidify reactant gases in polymer electrolyte membrane fuel cells (PEMFC). In this study, polymeric porous membranes with different compositions were prepared to be used in a membrane humidifier module and were employed in a humidification test. Three different neural network models were developed to investigate several...

in the current research, polyvinylchloride based mixed matrix heterogeneous anion exchange membranes were prepared by a solution casting technique. titanium dioxide nanoparticles were also utilized as inorganic filler additive in the membrane fabrication. the effect of tio2 nanoparticles concentration in the casting solution on the membrane physico-chemical properties was studied. membrane wate...

Immobilised titanium dioxide (TiO2) in membrane structures has recently become attractive. This is due to the elimination of the separation step after the process of photocatalytic degradation. The efficiency of the TiO2 surface area exposed to UV light as the main important parameter needs to be considered. The immobilisation of TiO2 nanoparticles in the polyvinylidene fluoride (PVDF) membrane...