Theoretical and Experimental Investigation of the Flooding Velocity of an Immiscible Vapor Mixture Condensing in Vertical Tubes

Abstract

A mathematical model accounting for the pressure oscillation when flooding occurs is presented to predict the velocity limit of an immiscible vapor mixture condensing in a vertical tube. This model incorporated the parameters of vapor inlet velocity, pressure drop, interfacial friction stress, tube inside diameter, and the fluid physical properties. The in-tube condensation experiments of an oil−steam vapor mixture with various mass ratios have been conducted using an 18 mm i.d. brass tube and a 20 mm i.d. glass tube, respectively. The model predicted that data agreed very well with the experimental data, indicating that this model is valid to predict the velocity limit of the immiscible vapor mixture condensing in a vertical tube.

The role of flooding in the design of vent and reflux condensers

“…Although a fair amount of research exists on the topic [3][4][5][6], it is still uncertain how exactly flooding works. It is widely accepted that flooding occurs under two mechanisms: wave transport and droplet entrainment.…”

Modification of a nicotinic acid functionalized water‐soluble acrylamide sulfonate copolymer for chemically enhanced oil recovery

“…[1][2][3][4][5] Chemical flooding, such as surfactant flooding, polymer flooding, and alkali flooding, is an efficient way to get enhanced oil recovery (EOR) according to various studies. 6,7 Because of its feasible and economical operation and its ability to efficiently reduce the mobility ratio, polymer flooding has shown significant adaptability to existing reservoir conditions. [8][9][10] Partially hydrolyzed polyacrylamide (HPAM), one of the most widely used thickeners or modifiers in EOR, has been reported by many researchers.…”