水平ねじれ管内固気二相流の粒子分布と圧力損失

概要

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Experiments for the solid concentration profiles in the cross-sectional flow area and the pressure gradient for gas-solid mixture flow in a spiral tube with three shaped groove tube walls have been carried out using a horizontal pipeline with a 3600-mm test section. Three kinds of particles in the range of 2.52 to 3.50-mm mean diameter were used in the test for pressure gradient. Photographic data for the solid concentration profiles in the spiral tube reflected the symmetric suspension flow patterns in the low air velocity range. It was also cleared so that minimal air velocity was required to keep particles from depositing on the bottom of the pipe decreased compared to the of a circular pipe within a certain range of gas-solid mixture transport in the spiral tube. The empirical formula for the friction factor for gas-solid mixture flow obtained by considering the effect of the spiral pitch was correlated with experimental data.
一般社団法人日本機械学会の論文
1989-01-25