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Two‐Phase Flow in Miniature Geometries: Comparison of Gas‐Liquid and Liquid‐Liquid Flows
Author(s) -
Verma Raj Kumar,
Ghosh Sumana
Publication year - 2019
Publication title -
chembioeng reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.089
H-Index - 22
ISSN - 2196-9744
DOI - 10.1002/cben.201800016
Subject(s) - adiabatic process , pressure drop , mechanics , flow (mathematics) , liquid liquid , materials science , mass transfer , heat transfer , two phase flow , liquid flow , volume (thermodynamics) , fluid dynamics , liquid gas , liquid phase , thermodynamics , chemistry , chromatography , physics
Miniature reactors are important devices used for process intensification. They provide a larger surface‐to‐volume ratio and enhance mass transfer and heat transfer significantly. This paper presents a review of transport processes of gas‐liquid and liquid‐liquid two‐phase flow in miniature geometries, in which the hydraulic diameter of the channel lies between 0.2 mm to 3.0 mm. Correlations for predicting the pressure drop in case of both adiabatic and non‐adiabatic gas‐liquid flows are summarized. Gas‐liquid distributions are observed to be different from liquid‐liquid flow distributions. Cross‐sectional geometry does not have any effect on the flow regimes in this range. In case of liquid‐liquid flow, the wall material plays an important role on flow distribution.