Visualization and measurement of two-phase flows in horizontal pipelines

Abstract

Understanding the dynamics of gas-liquid two-phase flows (G/L), is crucial to predict the transport efficiency of the mixture and the energy needed for pumping. In addition, many industrial processes are governed by momentum, heat, and mass transfer phenomena between the phases. Many examples can be found in the different stages of refinement up to the production of petroleum products, biomass transport, chemical reactors, nuclear waste decommissioning, pulp, and paper production, among many others.In this study, an experimental facility designed to analyze G/L mixture is presented and discussed. The experimental results are presented for gas-liquid flows in horizontal 30 mm ID pipelines. The mixture involved is composed of air and water. The superficial velocity of the liquid phase is in the range of 0-2 m/s and the gas phase from 0 to 2 m/s. The experimental data accounts for pressure loss, hold-up, superficial velocities, and flow regimes. A flow map is presented covering the specified ranges, and two-phase correlations for hold-up and frictional pressure loss are reported and compared with the available experimental data.

Experimental Analysis of Gas–Liquid–Solid Three-Phase Flows in Horizontal Pipelines

“…Since the studies of Chisholm (1967) Kong et al 2018;Rahman et al 2013;Abduvayt et al 2003;Sun and Mishima 2009;Sassi et al 2020). In the literature the LM correlation performs reasonably well in predicting the FPG of two phase flows.…”

“…3). An analysis of the development of the flow using the pressure transducers has been done in a previous study (Sassi et al 2020).…”

“…An Agilent 34970A data acquisition system is used to carry out the measurements at 20 Hz. Further details of the experimental facility can be found in Sassi et al (2020).…”

“…This work aims to bridge this gap by analyzing three-phase flows inside horizontal pipelines using an experimental rig specifically designed for this type of flows. The experimental facility is fully described in Sassi et al (2020), the pipelines have circular cross-section and are made of transparent plexi-glass for flow visualization. It has the capability to regulate and measure the inlet velocities in order to analyze every flow regime, and to measure the pressure at several sections along the pipeline.…”

Application of the one-dimensional drift-flux model for numerical simulation of gas–liquid isothermal flows in vertical pipes: a mechanistic approach based on the flow pattern

“…In the oil industry, gas and oil flow simultaneously in pipes, i.e., applied in natural and artificial lifting systems [1]. The multiphase flow prediction becomes necessary to the technical-economical feasibility of many industrial processes, particularly in the oil industry, due to the continued growth of world oil consumption, as well as the discovery of new oil fields, appearing new challenges [2][3][4][5].…”