<論文>大口径鉛直管内気液二相流の気相体積率に関する研究

概要

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The present study is aimed at experimentally investigating the void fraction in gas-liquid two-phase upward flow in a large diameter pipe. The test section was a acrylic pipe with 0.230 m in diameter and 8.0 m in height. A pair of quick shut slice-type valves was installed 2 m apart from each other to measure the averaged void fraction in air-water two-phase flow. The volumetric fluxes of each phase were <J_L>=0.1-0.7 m/s and <J_G>=:0.05-0.20 m/s. The void fraction increased with gas volumetric flux, and decreased with increasing liquid volumetric flux. The experimental data were correlated based on the drift flux model. The distribution parameter was very small compared with the previous study. It is supposed that this difference was due to the structure of the mixing section.
神戸市立工業高等専門学校の論文
2003-03-01