Detail publikace

Numerical Comparison of Prediction Models for Aerosol Filtration Efficiency Applied on a Hollow-Fiber Membrane Pore Structure

BULEJKO, P.

Originální název

Numerical Comparison of Prediction Models for Aerosol Filtration Efficiency Applied on a Hollow-Fiber Membrane Pore Structure

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Hollow-fiber membranes (HFMs) have widely been applied to many liquid treatment applications such as wastewater treatment, membrane contactors/bioreactors, membrane distillation etc. Despite the fact that HFMs are widely used for gas separation from gas mixtures, their use for mechanical filtration of aerosols is very scarce. In this work, we compared mathematical models developed for prediction of air filtration efficiency applying them on the structural parameters of polypropylene HFMs. These membranes are characteristic of pore diameters of about 90 nm and high solidity, thus high potential for nanoparticle removal from air. Single fiber/collector and capillary pore approach were chosen to compare between models developed for fibrous filters and capillary-pore membranes (Nuclepore filters) based on three main mechanisms occurring in aerosol filtration (inertial impaction, interception and diffusion). The collection efficiency due to individual mechanisms differs significantly. The differences are caused by the parameters for which the individual models were developed, i.e. given values of governing dimensionless numbers (Reynolds, Stokes and Peclet number) and also given values of filter porosity and filter fiber diameter. Some models can be used to predict the efficiency of HFMs based on assumptions depending on the conditions and exact membrane parameters.

Klíčová slova

Hollow-fiber membrane; aerosol; filtration efficiency; interception; inertial impaction; diffusion

Autoři

BULEJKO, P.

Vydáno

19. 6. 2018

Nakladatel

MDPI

Místo

Basel, Switzerland

ISSN

2079-4991

Periodikum

Nanomaterials

Ročník

8

Číslo

6

Stát

Švýcarská konfederace

Strany od

1

Strany do

24

Strany počet

24

URL

http://www.mdpi.com/2079-4991/8/6/447

Plný text v Digitální knihovně

http://hdl.handle.net/11012/83850

BibTex

@article{BUT148344,
  author="Pavel {Bulejko}",
  title="Numerical Comparison of Prediction Models for Aerosol Filtration Efficiency Applied on a Hollow-Fiber Membrane Pore Structure",
  journal="Nanomaterials",
  year="2018",
  volume="8",
  number="6",
  pages="1--24",
  doi="10.3390/nano8060447",
  issn="2079-4991",
  url="http://www.mdpi.com/2079-4991/8/6/447"
}