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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL AND EXPERIMENTAL SIMULATION OF THE PROPAGATION OF SOUND WAVES IN TWO-PHASE FLOW DOMINATED BY GAS FOR FLOW MEASUREMENT
Submission Author:
Fernando Molon Abreu , SP
Co-Authors:
Fernando Molon Abreu, MARLON MAURICIO HERNANDEZ CELY, Oscar Mauricio Hernandez Rodriguez
Presenter: Fernando Molon Abreu
doi://10.26678/ABCM.ENCIT2020.CIT20-0734
Abstract
Multiphase flows are present in several industrial fields, in particular in the oil industry and, consequently, attract several research interests in the area. In order to better understand the physical phenomena that occur in these processes, industrial and / or numerical instrumentation methods are used that allow their solution, in order to circumvent complexities. Flow meters inserted directly into the pipeline, denominated intrusive instruments, disturb the flow of fluids, generating greater pressure drop and decreasing the performance of the system. Thus, a non-invasive method for measuring gas leak is proposed. One proposal is based on the analysis of acoustic signals, generated by a loudspeaker of variable amplitude and frequency. For this, there is a need to measure, a priori, the speed of sound in the medium. Therefore, an experimental device was constructed at the Industrial Multiphase Flow Laboratory (LEMI) at the University of São Paulo (USP), consisting of a horizontal tube, an excitation source and pressure sensors, in addition to numerical implementations, in order to determine the speed of sound and the flow rate on a given data set. An experimental approach will be valid for the results obtained numerically.
Keywords
Two-phase Flow, sound propagation, wave speed, flare gas
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