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07615 CONTRIBUTION OF DRAG REDUCTION TO THE PERFORMANCE OF CORROSION INHIBITORS IN ONE- AND TWO-PHASE FLOW

Picture for 07615 CONTRIBUTION OF DRAG REDUCTION TO THE PERFORMANCE OF CORROSION INHIBITORS IN ONE- AND TWO-PHAS
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Product Number: 51300-07615-SG
ISBN: 07615 2007 CP
Author: G. Schmitt, M. Bakalli, and M. Hörstemeier
Publication Date: 2007
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The maximum ("freak") fluid/wall interaction energy densities to the wall in some highly disturbed single- and two-phase flow regimes have been quantified. Experimental tools to simulate disturbed flow conditions were the submerged jet and the gas-pulsed submerged jet, allowing a wide range of liquid and gas velocities. The maximum hydrodynamic interaction energies between flowing liquids and solid walls in single- and two-phase flow depend on both liquid and gas velocity and increase with increasing superficial velocities. It is shown that addition of tetradecyltrimethylammonium bromide (C-14 Quat) can significantly reduce both freak energy densities as well as wall shear stresses encountered under the same flow intensities. In case of single-phase flow the presence of 1 mM C-14 Quat decreased the freak energy density perpendicular to the wall below the fracture stress of protective scales and hence prevent flow induced localized corrosion.
The maximum ("freak") fluid/wall interaction energy densities to the wall in some highly disturbed single- and two-phase flow regimes have been quantified. Experimental tools to simulate disturbed flow conditions were the submerged jet and the gas-pulsed submerged jet, allowing a wide range of liquid and gas velocities. The maximum hydrodynamic interaction energies between flowing liquids and solid walls in single- and two-phase flow depend on both liquid and gas velocity and increase with increasing superficial velocities. It is shown that addition of tetradecyltrimethylammonium bromide (C-14 Quat) can significantly reduce both freak energy densities as well as wall shear stresses encountered under the same flow intensities. In case of single-phase flow the presence of 1 mM C-14 Quat decreased the freak energy density perpendicular to the wall below the fracture stress of protective scales and hence prevent flow induced localized corrosion.
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