Development of a Technology for Predicting High-Gas-Volume Flux Slurry Bubble Column

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03920
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Kobe University
• Principal Investigator: Tomiyama Akio 神戸大学, 工学研究科, 教授 (30211402)
• Co-Investigator(Kenkyū-buntansha): 細川 茂雄 神戸大学, 工学研究科, 准教授 (10252793) ; 林 公祐 神戸大学, 工学研究科, 准教授 (60455152)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 混相流 / 気泡塔 / スラリー

Outline of Final Research Achievements

Experiments on bubbly flows in slurry bubble columns were carried out to develop a numerical method of flows in high gas-volume-fraction slurry bubble columns for supporting scale up of bubble columns from a pilot to a commercial scale. The gas volume fraction was measured under various flow conditions and a volume fraction correlation applicable to the conditions was developed. The experiments also reveled that the available drag correlations are not applicable to huge bubbles flowing in the slurry bubble columns. Experiments on pseudo-two-dimensional bubbles in slurry were therefore conducted to investigate the effects of the presence of slurry on the drag coefficient and a drag model was developed based on the experimental results. The knowledge obtained from the experiments were taken into account in our numerical method for bubbly flows in slurry bubble columns.

Free Research Field

混相流工学