doi:10.1016/0009-2509(73)80069-7Jiri TichyElsevier LtdChemical Engineering ScienceTichy, J (1973) Liquid hold-up in gas-liquid coutercurrent flow through a bed of packing. Chem.Engng.Sci. 28: pp. 665
Gas-liquid Two-phase Bubbly FlowGas HoldupUltrasonic Measurement MethodHigh-speed CameraSound Field SimulationBased on ultrasonic sound pressure attenuation, the ultrasonic pulse transmission method is proposed for measuring gas holdup in gas-liquid two-phase bubbly flows. Two ultrasonic transducers are ...
The knowledge of the flow patterns of each phase of bubble column reactors is of considerable importance for the rational design and scale-up. The hydrodynamic models for the liquid phase have been reviewed. The models have been based on some form of pressure balance or energy balance. These ...
Wide range in gas-liquid flow rates and properties of airwater, air-Glycerol and air-MEA were used. The total and dynamic liquid holdups were determined using these systems with above packings. Liquid holdup was found to be more than 50% higher in corrugated structured packings than random ...
Prediction of Holdup in Pipe Two-phase Gas-Liquid Co-current Down Flow at −45d̀Holdup was measured for air-water co-current two-phase flow in a perspex tube (45.4 mm id) set at an angle of -45. The data were used to check the predictions of holdup given by various models (...
Foaming Gas holdupGas-liquid upward flow experiments have been performed in two bubble columns of different diameters (0.10 and 0.29 m,) using air as gas phase and several liquids: water, aqueous solutions of ethanol and glycerine, kerosene, and a solution of a surfactant in kerosene. The ...
Flow patterns, pressure loss and liquid holdup for gas-liquid co-current downflow have been studied in glass beds and in cylindrical and spherical downflow have been studied in glass beds and in cylindrical and spherical Co/Mo/AlOcatalyst packing with foaming and nonfoaming liquids. The different...
Results indicate that only in the bed packed with glass spheres of 10 mm diameter may two-phase flow in the interparticle voids occur. For smaller particles flow maldistributions are found and pure gas flow in part of the voids is anticipated, simultaneous to regular gasliquid flow in the ...
Flow patternsPressure dropLiquid holdupGasliquidliquid three-phase co-current flow commonly occurs in the oil & gas production pipelines. The dynamics of three-phase flow are more complex than single and two-phase flow. High pressure drop and liquid holdup are common flow assurance problems in ...
A physical model for the prediction of gas holdup in liquid slugs in horizontal and vertical two phase pipe slug flow is presented. This model can also be used to yield the transition between elonganted bubbles and slug flow within the intermittent flow pattern. In addition a previously publish...