Liquid–liquid two-phase mass transfer characteristics in a rotating helical microchannel

In this paper, flow patterns and mass transfer characteristics of two immiscible fluids in a T-junction circular microchannel were investigated. Four flow patterns, i.e. slug flow, irregular flow, parallel flow and annular flow, were captured by a CCD method, which were resulted from the competition among interfacial tension, viscous force and inertia force. Besides, the overall volumetric mass transfer coefficients ka for the four flow patterns was determined experimentally. The values of ka are in the range of 0.006~0.545s−1 and mainly dependent on the superficial velocity and the flow pattern regime.

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Enhancement of mass transfer characteristics and phenanthrene degradation in a two-phase partitioning bioreactor equipped with internal static mixers

Biotechnology and Bioprocess Engineering ◽

10.1007/s12257-010-0002-6 ◽

2011 ◽

Vol 16 (2) ◽

pp. 413-418 ◽

Cited By ~ 3

Author(s):

Abdelhay Arwa ◽

Stéphane Baup ◽

Nicolas Gondrexon ◽

Jean-Pierre Magnin ◽

John Willison

Keyword(s):

Mass Transfer ◽

Two Phase ◽

Phenanthrene Degradation ◽

Static Mixers ◽

Phase Partitioning ◽

Transfer Characteristics ◽

Partitioning Bioreactor ◽

Two Phase Partitioning Bioreactor

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Mass Transfer Characteristics of Vertical Two-Phase Flows with Orifice Nozzle

Transactions of the Korean Society of Mechanical Engineers B ◽

10.3795/ksme-b.2015.39.10.817 ◽

2015 ◽

Vol 39 (10) ◽

pp. 817-824 ◽

Cited By ~ 2

Author(s):

Dong Jun Kim ◽

Hei Cheon Yang

Keyword(s):

Mass Transfer ◽

Two Phase Flows ◽

Two Phase ◽

Transfer Characteristics

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Heat and Mass Transfer Characteristics of Evaporating Falling Films

Process Analysis, Design, and Intensification in Microfluidics and Chemical Engineering - Advances in Chemical and Materials Engineering ◽

10.4018/978-1-5225-7138-4.ch009 ◽

2019 ◽

pp. 251-276

Author(s):

Monssif Najim ◽

M'barek Feddaoui ◽

Abderrahman Nait Alla ◽

Adil Charef

Keyword(s):

Mass Transfer ◽

Liquid Film ◽

Heat And Mass Transfer ◽

Gas Flow ◽

Thermal Protection ◽

Liquid Films ◽

Two Phase ◽

Film Evaporation ◽

Transfer Characteristics ◽

Two Phases

This chapter presents a numerical investigation of heat and mass transfer characteristics during the evaporation of liquid films in vertical geometries. A two-phase model is developed to simulate laminar film evaporation into laminar gas flow. The liquid film evaporation is evaluated under adiabatic and heated wall conditions for both pure and binary liquid film. The model is based on a finite difference method to solve the governing equations of the two phases. The obtained results concerns two industrial processes. The first part of the chapter is devoted to the analysis of the thermal protection of vertical channel wall, while the second part is devoted to the desalination process by falling liquid film. The simulations results allowed the determination of the optimal operating conditions for both processes.

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