Local Structure Effects on Pressure Drop in Slender Fixed Beds of Spheres

被引：16

作者：

Flaischlen, Steffen ^{[1
,2
]}

Kutscherauer, Martin ^{[1
,3
]}

Wehinger, Gregor D. ^{[1
,2
]}

机构：

[1] Tech Univ Clausthal, Inst Chem & Electrochem Proc Engn, Leibnizstr 17, D-38678 Clausthal Zellerfeld, Germany

[2] Tech Univ Clausthal, Res Ctr Energy Storage Technol EST, Stollen 19A, D-38640 Goslar, Germany

[3] Clariant AG, Waldheimer Str 15, D-83052 Bruckmuhl, Germany

来源：

CHEMIE INGENIEUR TECHNIK | 2021年 / 93卷 / 1-2期

关键词：

Computational fluid dynamics; Fixed bed reactor; Pressure drop; Rigid body approach; Synthetic fixed beds; RIGID-BODY DYNAMICS; PACKED-BEDS; CFD SIMULATIONS; FLOW; REACTORS; POROSITY; VOIDAGE;

D O I：

10.1002/cite.202000171

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

For slender fixed beds, the void fraction and flow properties are complex topics. Different factors can influence the local bed structure. For statistical analysis, 2800 fixed beds have been generated and the impact of friction factor and reactor-to-particle diameter ratio on the distribution has been shown. With particle-resolved computational fluid dynamics, all local structure effects are taken into account for the flow simulations. Pressure drop measurements and simulations showed that these effects can lead to areas with low flow resistance, leading to overestimated pressure drop by typical correlations up to 85 %.

引用

页码：273 / 281

页数：9

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