Analysing the porous structure of packed beds of spheres using a semi-analytical approach

被引：14

作者：

du Toit, Charl G. ^{[1
]}

机构：

[1] North West Univ, Sch Mech & Nucl Engn, Private Bag X6001, ZA-2520 Potchefstroom, South Africa

来源：

POWDER TECHNOLOGY | 2019年 / 342卷

基金：

新加坡国家研究基金会;

关键词：

Packed bed; Spheres; Radial porosity; Axial porosity; Hydraulic diameter; Bulk porosity; Overlaps; UNIFORMLY SIZED SPHERES; FIXED-BEDS; POROSITY DISTRIBUTION; PACKING; FLOW; WALL; PROFILES; DISTRIBUTIONS;

D O I：

10.1016/j.powtec.2018.10.017

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper methodologies are described for the analysis of the porous structure of cylindrical and annular packed beds consisting of spheres when the coordinates and sizes of the spheres are known. Methodologies to determine the overlap between adjacent spheres and between the spheres and the walls of the container; axial variation in the porosity and hydraulic diameter; and the radial variation in the porosity are described. The determination of the overall bulk porosity, as well as the average porosity of selected regions, from the results are also discussed. The methodologies are based on analytical geometry and Simpson's rule is used to perform the numerical integration of the relevant integrals. The validity of the methodologies is demonstrated and the application of the methodologies to analyse the porous structure of selected packed beds is illustrated. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：475 / 485

页数：11

共 46 条

[41] A semi-analytical approach to the study of an elastic circular cylinder confined in a cylindrical fluid domain subjected to small-amplitude transient motions [J].

Leblond, C. ;

Sigrist, J. F. ;

Auvity, B. ;

Peerhossaini, H. .

JOURNAL OF FLUIDS AND STRUCTURES, 2009, 25 (01) :134-154

[42] Analytical solutions for contaminant transport in a semi-infinite porous medium using the source function method [J].

Bai, Bing ;

Li, Huawei ;

Xu, Tao ;

Chen, Xingxin .

COMPUTERS AND GEOTECHNICS, 2015, 69 :114-123

[43] Effect of shrinkage void on thermal performance of pure and binary phase change materials based thermal energy storage system: A semi-analytical approach [J].

Janghel, Diwakar ;

Saha, Sandip K. ;

Karagadde, Shyamprasad .

APPLIED THERMAL ENGINEERING, 2020, 167

[44] Transportation of MHD nanofluid free convection in a porous semi annulus using numerical approach [J].

Sheikholeslami, M. ;

Ganji, D. D. .

CHEMICAL PHYSICS LETTERS, 2017, 669 :202-210

[45] Interpretation of the enhancement of field-scale effective matrix diffusion coefficient in a single fracture using a semi-analytical power series solution [J].

Liou, Tai-Sheng .

HYDROLOGICAL PROCESSES, 2009, 23 (06) :816-829

[46] Thermal and thermohydraulic performance evaluation of a novel type double pass packed bed solar air heater under external recycle using an analytical and RSM (response surface methodology) combined approach [J].

Singh, Satyender ;

Dhiman, Prashant .

ENERGY, 2014, 72 :344-359

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