21013 気液二相流を利用した固相粒子の輸送に関する研究(一般講演二相流(1))

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The plug rising velocity of the upward solid-gas-liquid three-phase flow in a vertical pipe was examined experimentally. The diameter and the length of the pipe were 30 mm and 3.0 m, respectively. Water and air were the liquid and the gas phase. The solid phase was glass beads or stainless steel balls. The diameter of the glass beads and the stainless steel balls were 1.02 mm and 2.08 mm, and 1.58 and 2.38 mm, respectively. Experiments were performed for the gas volumetric flux of 〜 0.3 m/s, the liquid volumetric flux of 〜 1 m/s and the solid volumetric flux of 〜 0.003 m/s, respectively. The measured plug rising velocity increased with the falling solid phase flux, which was the same trend as what was observed in the solid-gas-liquid three-phase in a stagnant liquid column. Predicted plug rising velocities with the correlation proposed by other researcher were greatly different from the measured results.
一般社団法人日本機械学会の論文
2010-03-09