TY - JOUR
T1 - An Assessment of Void Fraction Predicting Methods for Gas-Liquid Two-Phase Flow in an Annulus
AU - Li, Nailiang
AU - Qu, Zecheng
AU - Du, Xueping
AU - Han, Dongtai
AU - Chen, Bin
N1 - Publisher Copyright:
© 2023 American Chemical Society
PY - 2023/10/25
Y1 - 2023/10/25
N2 - Gas void fraction plays an important role in the calculation of several multiphase flow parameters. The prediction of a void fraction for gas-liquid two-phase flow in an annulus is needed by many design practices. In the present work, void fraction correlations based on the homogeneous method, slip-ratio method, and drift-flux method are reviewed, and a total of 24 correlations, 8 for each group, are collected. A database covering 1136 experimental data points of void fractions from 0.009 to 0.972 in an annulus is developed, with the range of hydraulic diameters from 0.002 to 0.057 m, and the pipe inclinations from horizontal to vertical. The 24 correlations are tested against the entire database to evaluate their abilities in predicting the void fraction of two-phase flow in annuli. It is found that no correlation studied here provides satisfactory agreement with the whole database, and many correlations show good symmetry but with poor concentration. A void fraction correlation for flow in annuli is proposed based on the drift-flux model with a new equation for the distribution parameter. Comparison of the predicted value with the experimental data shows good agreement.
AB - Gas void fraction plays an important role in the calculation of several multiphase flow parameters. The prediction of a void fraction for gas-liquid two-phase flow in an annulus is needed by many design practices. In the present work, void fraction correlations based on the homogeneous method, slip-ratio method, and drift-flux method are reviewed, and a total of 24 correlations, 8 for each group, are collected. A database covering 1136 experimental data points of void fractions from 0.009 to 0.972 in an annulus is developed, with the range of hydraulic diameters from 0.002 to 0.057 m, and the pipe inclinations from horizontal to vertical. The 24 correlations are tested against the entire database to evaluate their abilities in predicting the void fraction of two-phase flow in annuli. It is found that no correlation studied here provides satisfactory agreement with the whole database, and many correlations show good symmetry but with poor concentration. A void fraction correlation for flow in annuli is proposed based on the drift-flux model with a new equation for the distribution parameter. Comparison of the predicted value with the experimental data shows good agreement.
UR - https://www.scopus.com/pages/publications/85168432113
U2 - 10.1021/acs.iecr.3c01445
DO - 10.1021/acs.iecr.3c01445
M3 - 文章
AN - SCOPUS:85168432113
SN - 0888-5885
VL - 62
SP - 17029
EP - 17040
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 42
ER -