Chord length distributions interpretation using a polydispersed population: Modeling and experiments

被引：11

作者：

Cameirao, A. ^{[1
]}

Le Ba, H. ^{[1
]}

Darbouret, M. ^{[2
]}

Herri, J. -M. ^{[1
]}

Peytavy, J. -L. ^{[3
]}

Glenat, P. ^{[3
]}

机构：

[1] Ecole Natl Super Mines, F-42023 St Etienne 2, France

[2] IFP Energies Nouvelles, Rond-point echangeur Solaize, F-69360 Solaize, France

[3] TOTAL, CSTJF, F-64018 Pau, France

来源：

JOURNAL OF CRYSTAL GROWTH | 2012年 / 342卷 / 01期

关键词：

Crystallization; Agglomeration; Chord length distribution; Crystallization from a Water in oil emulsion; Modeling; PARTICLE-SIZE; WATER;

D O I：

10.1016/j.jcrysgro.2011.05.028

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Chord length distributions were measured during the crystallization of gas hydrates in a flow loop. The conditions on the flow loop were similar with the conditions in the marine pipelines. The flow loop was filled with water in oil emulsion and pressurized with methane (7 MPa) at low temperature (277 K). During crystallization water droplets crystallize and agglomerate. The CLD measures were interpreted in a preceding work [Le Ba et al., 2010][1] by constructing random aggregates with known geometrical proprieties from a monodispersed population of droplets and calculating their CLD. Comparing calculated CLD with CLD from the experiment, the geometrical parameters: number of primary particles and fractal dimension of experimental aggregates are identified. However some differences remained between the experiment and the calculated CLD. In the present work the droplets population was considered polydispersed improving the comparison between the model and the experiment. (c) 2011 Elsevier B.V. All rights reserved.

引用

页码：65 / 71

页数：7

共 15 条

[1] Measurement and Calibration of Droplet Size Distributions in Water-in-Oil Emulsions by Particle Video Microscope and a Focused Beam Reflectance Method [J].