Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
Sensitivity analysis of a mechanistic heat transfer slug flow model to the frequency
Submission Author:
Carlos Lange Bassani , Bayern
Co-Authors:
Fausto Arinos Barbuto, Rigoberto Morales
Presenter: Carlos Lange Bassani
doi://10.26678/ABCM.ENCIT2016.CIT2016-0097
Abstract
The importance of the slug flow pattern to the oil and gas industry comes from the fact that it occurs over a wide range of gas and liquid flow rates and is therefore frequently found in offshore oil and gas transportation operations. Several experimental works attempted to model some important slug flow parameters such as its frequency and the elongated bubble translational velocity. The experimental correlations that arose from those works are widely used today in mechanistic slug flow simulators so as to provide mathematical closure to the numerical model, as the one that will be presented herein. Yet, those correlations were developed under different experimental conditions, where the pipe geometry, the fluid properties and even the measurement techniques widely affect their performance and their accuracy whenever extrapolations are required. Therefore, this work presents a sensitivity analysis of a heat transfer model for gas-liquid slug flows in horizontal pipes in terms of some slug flow frequency correlations. The sensitivity analysis for the pressure and temperature gradient predictions is shown here, as well as for the mixture heat transfer coefficient and the lengths of the unit cell structures.
Keywords
Multiphase flow modeling, Gas-liquid slug flows, mechanistic approach, Heat transfer, Multiphase flow modeling, Gas-liquid slug flows, mechanistic approach, Heat transfer
