Estudo experimental de escoamentos líquido-gás intermitentes em tubulações inclinadas / Experimental analysis of slug flow in inclined lines

AUTOR(ES)

Luis Gerardo Gómez Bueno

FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

26/02/2010

RESUMO

This work analyses experimentally the flow properties of a gas-liquid mixture flowing in the slug regime in inclined lines. The experimental data are collected through a pair of impedance probes placed at 77D and 257D downstream of the air-water mixer in a 26mm ID pipe. During the tests air and water superficial velocities spanned, respectively, from 0,1 m/s to 2,1 m/s and from 0,3 m/s to 1,2 m/s. The tests started with the line positioned at the horizontal, 0 degrees and changed, in steps of 15 degrees each, up to the vertical position or 90 degrees. Along each line position the pressure drop, the bubble velocity, the lengths of the liquid slug and of the elongated bubble, the coalescence rate as well as the frequency of the air-water structures were measured. This work analyses the effect of the line inclination on the slug flow properties.

ASSUNTO(S)

escoamento intermitente two-phase flow

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