Open Journal of Air Pollution

Volume 5, Issue 1 (March 2016)

ISSN Print: 2169-2653   ISSN Online: 2169-2661

Google-based Impact Factor: 1.67  Citations  

Modeling Submicron Particles Collection in Laminar Forced Convection Gas Flow by a Rectangular Venturi Scrubber

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DOI: 10.4236/ojap.2016.51002    3,137 Downloads   4,398 Views  

ABSTRACT

Venturi scrubbers are usually used for large particles cleaning in turbulent gaseous flow. In this work, submicron particles scrubbing in laminar forced convection dusty air flow in a rectangular venturi scrubber have been numerically simulated. Hydrodynamics effects and scrubbing process are investigated in detail. Results are presented as flow velocity, axial pressure, streamlines pattern, particles and droplets mass fraction profile, and collect efficiency. They show that venturi scrubbers can be efficient for submicron particles scrubbing. In fact, a better collect efficiency is obtained at high particles-droplets residence time, high ratio droplets concentration/particles concentration, low venturi diameter ratioand low Reynolds numbers. There is a critical Reynolds number value for which the collect efficiency becomes very low and tends to be constant.

Share and Cite:

Igo, S. , N’wuitcha, K. , Zeghmati, B. and Chesneau, X. (2016) Modeling Submicron Particles Collection in Laminar Forced Convection Gas Flow by a Rectangular Venturi Scrubber. Open Journal of Air Pollution, 5, 10-26. doi: 10.4236/ojap.2016.51002.

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