2020, Vol. 1, Issue 1, Part A
Effect of alkanes on interfacial tension of fish oil-AgNo3 and on flow patterns in PFA mini-channel
Author(s): S Kirubanandan
Abstract: The multiphase flow with reaction and mixing of the extraction process at mini/micro scale continues to be an area of active research. In mini/micro-fluidic systems, the surface forces increase until gravitational forces no longer have a significant impact on the hydrodynamics of the system. Interfacial tension (IFT) forces begin to play a more predominant role in determining flow patterns due to the reduction of channel diameter. The flow pattern strongly depends on the physical properties of fluids and dimension of the channel. Recently, the flow of Fish oil–AgNO3 in PFA mini-fluidic channel is stratified and attempted to bring slug flow pattern by addition of alkanes. In order to tune flow pattern, the various proportions of alkanes were added into this binary system and then evaluated IFT for Fish Oil EE–Water, Fish Oil EE–Silver nitrate Solution and Hexane-Fish Oil EE-Silver nitrate at 25 °C using Spinning drop tensiometry. The Eotvos number and flow transition map between capillary number and Froude number for these experimental fluids are evaluated and commented the dominating forces for flow transition from stratification to slug flow. The addition of alkanes into the fish oil phase does elevate the interfacial tension significantly and then the slug flow pattern was anticipated in mini-channel. But the flow visualization investigations confirmed that the stratification of flow was observed even addition of alkanes into the fish oil phase. The reason for stratification would be the reduction of interfacial tension at the interface and reversible chemical reaction between fish oil ethyl ester and silver nitrate solution.
Pages: 18-22 | Views: 792 | Downloads: 410
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How to cite this article:
S Kirubanandan. Effect of alkanes on interfacial tension of fish oil-AgNo3 and on flow patterns in PFA mini-channel. J Res Chem 2020;1(1):18-22.