Influence of Droplet Size on Exergy Destruction in Flow of Concentrated Non-Newtonian Emulsions

Influence of Droplet Size on Exergy Destruction in Flow of Concentrated Non-Newtonian Emulsions

Abstract: The influence of droplet size on exergy destruction rate in flow of highly concentrated oil-in-water emulsions was investigated experimentally in a cone and plate geometry. The oil concentration was fixed at 74.5% by volume. At this dispersed-phase (oil) concentration, two different droplet size emulsions were prepared: fine and coarse emulsions. The fine and coarse emulsions were mix...

Entropy Generation in Flow of Highly Concentrated Non-Newtonian Emulsions in Smooth Tubes

Entropy generation in adiabatic flow of highly concentrated non-Newtonian emulsions in smooth tubes of five different diameters (7.15–26.54 mm) was investigated experimentally. The emulsions were of oil-in-water type with dispersed-phase concentration (φ ) ranging from 59.61–72.21% vol. The emulsions exhibited shear-thinning behavior in that the viscosity decreased with the increase in shear ra...

Influence of Salinity, Surfactants and Power of Ultrasonic Homogenizer on Droplet Size Distribution of Crude Oil/Water Emulsions

Exergy Destruction in Pipeline Flow of Surfactant-Stabilized Oil-in-Water Emulsions

Exergy destruction in adiabatic pipeline flow of surfactant-stabilized oil-in-water emulsions is investigated in five different diameter pipes. The dispersed-phase (oil droplets) concentration of the emulsions is varied from 0% to 55.14% vol. The emulsions are Newtonian in that the viscosity is independent of the shear rate. For a given emulsion and pipe diameter, the exergy destruction rate pe...

effect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow

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