Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
EXPERIMENTAL STUDY OF GAS-LIQUID-SOLID SLUG FLOW IN HORIZONTAL PIPELINES
Submission Author:
Moisés Marcelino Neto , PR
Co-Authors:
Luis Miguel Marcos Rosas, Fábio Schneider, Marco Jose Da Silva, Rigoberto Morales, Amadeu Sum
Presenter: Moisés Marcelino Neto
doi://10.26678/ABCM.ENCIT2016.CIT2016-0677
Abstract
Multiphase flows appear during a large number of industrial operations. Such is the case of the offshore oil and gas production operations, where sand or hydrate particles may occasionally be present in the flow. The present work characterizes, on experimental grounds, the gas-liquid-solid three-phase flows in a horizontal pipe. The objective here is to determine the role solid particles (akin to hydrates) play on the characteristic parameters of such flows, namely the bubble front velocity, unit cell frequency and bubble and liquid slug lengths. Experimental tests with liquid-suspended solid particles whose specific masses are similar to those of the hydrate particles were carried out. The test section comprised a 26-mm ID, 9-m long transparent acrylic pipe. The flow structures were monitored and measured by means of resistive sensors and a high-speed camera. Several pairs of gas and liquid superficial velocities at a constant solid particle concentration were investigated during the tests. Standard 0.5-mm polyethylene particles with 938 kg/m3 of specific mass made the solid phase. The signals captured during the tests were processed and presented in terms of a probability density function (PDF) and averaged values. The experiments and their results are herein discussed and compared with the two-phase gas-liquid flows at similar conditions.
Keywords
Experimental Study, multiphase flows, gas-liquid-solid, Slug Flow, solid particles, Experimental Study, multiphase flows, gas-liquid-solid, Slug Flow, solid particles
