Plataforma para gerenciamento de dados do sensor wire-mesh aplicados a escoamentos multifásicos

Abstract

Multiphase flows are present in nature and in several industrial activities, among them an oil industry as a two-phase gas-liquid flow where oil and gas are present inside the pipes. The accuracy of operations and safety of plants and equipment are related to the understanding of the phenomena involved in this flow. By means of experimental studies, it is sought to extract parameters and characteristics as well as to identify flow patterns within a set of regimes that can be dispersed bubbles, gaps, stratified, annular and variants of these patterns. The technique of Wire-mesh has been widely used in recent years for a monitoring of the multiphase flow. This is a simple and lower cost technique compared to other techniques based on tomographic sensors and highspeed cameras. An intrusive technique allows analyzing the flow with high temporal and spatial resolution whose principle of operation is based on measuring of electrical properties of conductivity or permissiveness of the different phases in the fluid. The need for technological development of software and efficient algorithms for visualization and data processing that allow extracting as a characteristic, to identify and validate the flow parameters, accompany the need for development and improvement of hardware of electronic measurement. In this sense, this work aims to develop a software platform for the management and application of computational methods for a control extraction in gas-liquid biphasic flows. A platform was developed to process experimental data collected with a Wire-mesh technique and to recreate a 2D and 3D flow image in order to allow researchers to analyze the phenomenon. The platform was evaluated with data for various sensor Wire-mesh configurations and various flow patterns. The results were satisfactory results for generating images with good sensitivity and good resolution to identify the behavior of the interfaces between phases of the biphasic flow. The main contribution is therefore to provide a data management software giving support to technicians and researchers related to the study area of multiphase flows that helps both research and teaching.