A Combined Multifluid-Population Balance Model for Vertical Gas−Liquid Bubble-Driven Flows Considering Bubble Column Operating Conditions

2011 ◽  
Vol 50 (3) ◽  
pp. 1786-1798 ◽  
Author(s):  
A. K. Nayak ◽  
Z. Borka ◽  
L. E. Patruno ◽  
F. Sporleder ◽  
C. A. Dorao ◽  
...  
Keyword(s):  
Bubble Column ◽  
Population Balance ◽  
Operating Conditions ◽  
Balance Model ◽  
Population Balance Model ◽  
Liquid Bubble

scholarly journals Prediction of Bubble Size Distributions in Large-Scale Bubble Columns Using a Population Balance Model

Computation ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 17 ◽  
Author(s):  
Giorgio Besagni ◽  
Fabio Inzoli
Keyword(s):  
Bubble Size ◽  
Large Scale ◽  
Bubble Column ◽  
Mass Transfer Rate ◽  
Population Balance ◽  
Bubble Columns ◽  
Balance Model ◽  
Population Balance Model ◽  
Experimental Dataset ◽  
Liquid Bubble

A precise estimation of the bubble size distribution (BSD) is required to understand the fluid dynamics in gas-liquid bubble columns at the “bubble scale,” evaluate the heat and mass transfer rate, and support scale-up approaches. In this paper, we have formulated a population balance model, and we have validated it against a previously published experimental dataset. The experimental dataset consists of BSDs obtained in the “pseudo-homogeneous” flow regime, in a large-diameter and large-scale bubble column. The aim of the population balance model is to predict the BSD in the developed region of the bubble column using as input the BSD at the sparger. The proposed approach has been able to estimate the BSD correctly and is a promising approach for future studies and to estimate bubble size in large-scale gas–liquid bubble columns.

Application of Population Balance Model in the Simulation of Slurry Bubble Column

2014 ◽  
Vol 53 (12) ◽  
pp. 4922-4930 ◽  
Author(s):  
Lijia Xu ◽  
Zihong Xia ◽  
Xiaofeng Guo ◽  
Caixia Chen
Keyword(s):  
Bubble Column ◽  
Population Balance ◽  
Balance Model ◽  
Population Balance Model ◽  
Slurry Bubble Column

CFD simulation of gas–liquid flow in a high-pressure bubble column with a modified population balance model

2018 ◽  
Vol 26 (6) ◽  
pp. 1350-1358 ◽  
Author(s):  
Bo Zhang ◽  
Lingtong Kong ◽  
Haibo Jin ◽  
Guangxiang He ◽  
Suohe Yang ◽  
...  
Keyword(s):  
High Pressure ◽  
Liquid Flow ◽  
Cfd Simulation ◽  
Bubble Column ◽  
Population Balance ◽  
Balance Model ◽  
Population Balance Model ◽  
Gas Liquid Flow

scholarly journals Study on the regional characteristics during foam flooding by population balance model

2020 ◽  
pp. 014459872098361
Author(s):  
Zhongbao Wu ◽  
Qingjun Du ◽  
Bei Wei ◽  
Jian Hou
Keyword(s):  
Numerical Simulation ◽  
Simulation Model ◽  
Oil Recovery ◽  
Population Balance ◽  
Growth Zone ◽  
Balance Model ◽  
Population Balance Model ◽  
Liquid Ratio ◽  
One Dimensional ◽  
Foam Flooding

Foam flooding is an effective method for enhancing oil recovery in high water-cut reservoirs and unconventional reservoirs. It is a dynamic process that includes foam generation and coalescence when foam flows through porous media. In this study, a foam flooding simulation model was established based on the population balance model. The stabilizing effect of the polymer and the coalescence characteristics when foam encounters oil were considered. The numerical simulation model was fitted and verified through a one-dimensional displacement experiment. The pressure difference across the sand pack in single foam flooding and polymer-enhanced foam flooding both agree well with the simulation results. Based on the numerical simulation, the foam distribution characteristics in different cases were studied. The results show that there are three zones during foam flooding: the foam growth zone, stable zone, and decay zone. These characteristics are mainly influenced by the adsorption of surfactant, the gas–liquid ratio, the injection rate, and the injection scheme. The oil recovery of polymer-enhanced foam flooding is estimated to be 5.85% more than that of single foam flooding. Moreover, the growth zone and decay zone in three dimensions are considerably wider than in the one-dimensional model. In addition, the slug volume influences the oil recovery the most in the foam enhanced foam flooding, followed by the oil viscosity and gas-liquid ratio. The established model can describe the dynamic change process of foam, and can thus track the foam distribution underground and aid in optimization of the injection strategies during foam flooding.

Population balance model for solid state sintering II. Grain growth

2001 ◽  
Vol 27 (1) ◽  
pp. 63-71 ◽  
Author(s):  
S Sivakumar ◽  
Manjunath Subbanna ◽  
Satyam S Sahay ◽  
Vijay Ramakrishnan ◽  
P.C Kapur ◽  
...  
Keyword(s):  
Solid State ◽  
Grain Growth ◽  
Population Balance ◽  
Balance Model ◽  
Population Balance Model ◽  
Solid State Sintering
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