Three Dimensional CFD Analyses for the Effect of Solid Concentration on Gas Holdup in a Slurry Bubble Column
Mohammed W. Abdulrahman, Nashaat N. Nassar
Abstract
In this paper, 3D-CFD simulations are used to model solid particle concentration effects on the hydrodynamic behavior of a direct contact heat transfer slurry bubble column reactor containing helium gas and a slurry of liquid water and solid alumina particles.The results of this paper are compared to previous experimental data and shows a maximum error of 8.37% for a solid particle concentration of 10%, while the errors are decreasing when the solid particle concentration is decreased.Also, It is shown that decreasing solid particle concentration increases gas holdup, where increasing solid concentration from 0% to 10% leads to a decrease in gas holdup by 6%.Moreover, the results of this paper are compared to previous 2D CFD results and shows better accuracy, where the maximum error of the 2D CFD simulations were 28.5%.