A meta-analysis of empirical correlations for average gas hold-up in three-phase fluidized beds

作者：Mowla Amir; Treeratanaphitak Tanyakarn; Budman Hector M; Abukhdeir Nasser Mohieddin; Ioannidis Marios A^*

来源：Powder Technology, 2016, 301: 590-595.

DOI：10.1016/j.powtec.2016.03.012

• Multiphase flow
• Fluidized beds
• Gas-liquid-solid reactors
• Gas hold-up
• Dimensional analysis
• Correlation

Experimental measurements of the average gas hold-up, a key parameter in the design and operation of three-phase (gas-liquid-solid) fluidized beds, are extracted from a multitude of published studies, classified and correlated for the first time. A simple functional, based on power-law dependence of the average gas hold-up on a number of dimensionless variables, successfully correlates gas hold-up during gas flow in fluidized beds of spherical particles with pure water as the liquid phase. Best-fit parameters of such a functional result in prediction of more than 75% of the data with absolute relative error less than 20%, but are shown to depend on the morphology of three-phase flow and may be difficult to generalize.

• 出版日期2016-11