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COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Experimental study of gas-liquid flow separation at an inclined T-junction with a vertical upward branch
Submission Author:
Yasmin Gavioli , RJ
Co-Authors:
Yasmin Gavioli, Juliana Loureiro, Valter Aibe, Atila Pantaleão Silva Freire, Ligia Pereira Silva de Oliveira
Presenter: Yasmin Gavioli
doi://10.26678/ABCM.COBEM2017.COB17-1644
Abstract
The separation of gas-liquid flows in the oil industry requires the use of large vessels, where the flow mixture should rest for a while so that gravity forces can act and promote phase separation. New separation strategies are being investigated in order to perform on line separation inside compact equipment. The separation of two-phase flows at a T-Junction is a common feature in this industry. When a gas-liquid mixture flows through a junction, the phases are separated unevenly such that the qualities in the downstream pipes are unequal. This work is focused on the experimental characterization of the dynamical properties of gas-liquid flow separation using visualization techniques. The geometrical configuration investigated in the present work has an inlet pipe of 70 mm inclined downwards (10°) and a vertically upward branch of 50 mm. Air and water flow rates were varied to simulate different flow patterns. The mean velocity and turbulent statistics of the liquid phase were characterized by means of Particle Image Velocimetry (PIV). A Shadow Sizer system and laser-based techniques were used to quantify the properties of the gas phase, such as bubble length and bubble velocity.
Keywords
T-junction, gas-liquid separation, Two-phase Flow, PIV
