Author(s)

FARAJ BEN RAJEB, MOHAMMAD AZIZUR RAHMAN, YAN ZHANG, SYED IMTIAZ, AMER ABORIG, MOHAMED ODAN

Abstract

In the present study, pipe flows are used to investigate the behavior flow of water–CO₂ mixtures at different pressures and temperatures. The flow rate and pressure of water and CO₂ are changed by using a pump placed ahead of the mixing point. Pressure and temperature levels are recorded by pressure sensors and thermocouples affixed at points along the pipe loop. The flow regimes of two-phase water–CO₂ flow is visualized through transparent tubes using a high-speed camera. After several experiments, it was found that the mean pressure drop along the tube for a water–CO₂ system flow is about 4 kPa/m for water flow rates between 0.4 and 0.7 L/S and CO₂ flow rates between 2.5 and 11 L/S. The maximum inlet pressure for water is 400 kPa and for CO₂ is 3000 kPa. In this experiment, the phase fraction of water is approximately 0.5–0.15 and the phase fraction of CO₂ is around 0.85–0.95. The investigated flow regime under these flow conditions is often intermittent.

Keywords

carbon dioxide, water, two-phase flows, pressure loss, transportation