Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
EXPERIMENTAL IMAGE ANALISYS OF GAS BUBBLES PATH LINE IN CENTRIFUGAL PUMP IMPELLER
Submission Author:
Jorge Luiz Biazussi , RJ , Brazil
Co-Authors:
Rodolfo Perissinotto, Jonathan Saturnino, William Monte Verde, Jorge Luiz Biazussi, Marcelo Souza de Castro, Antonio Bannwart
Presenter: Rodolfo Perissinotto
doi://10.26678/ABCM.COBEM2017.COB17-0982
Abstract
The main objective of this research is to analyze the path line and the velocity of air bubbles flowing within an Electrical Submersible Pump (ESP) impeller operating with a two-phase gas-liquid flow, under various conditions. In this paper, a digital image processing was performed, based on the experimental study of Monte Verde et al. (2017). Results for a population of air bubbles reveal that they present random trajectories, with a chaotic behavior. Comparison between air bubbles on the suction blade and on the pressure blade suggests that the velocity of air bubbles is dependent on their position within the channel and also on the water flow rate associated with diverse flow patterns. The air bubbles take milliseconds to traverse the channels, at velocities in the order of units of meters per second. The water flow carries the air bubbles from the channel inlet to the outlet. Fluid-particle interactions are relevant to the air bubble behavior.
Keywords
ESP, centrifugal pump, bubble track, multiphase flow, Flow Visualization, gas bubbles
