Radiation Matters in Fixed-Bed CFD Simulations

被引：22

作者：

Wehinger, Gregor D. ^{[1
]}

机构：

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

来源：

CHEMIE INGENIEUR TECHNIK | 2019年 / 91卷 / 05期

关键词：

CFD; Fixed-bed reactor; Heat transfer; Radiation; CYLINDRICAL PARTICLES; HEAT-TRANSFER; METHANE; PROFILES; FLOW; REACTORS; GAS;

D O I：

10.1002/cite.201800179

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Fixed-bed reactors often operate at elevated temperatures, where radiation can be a significant heat-transfer mechanism. Particle-resolved CFD models fixed-bed reactors on a very detailed macroscopic level. In this study, the contribution of radiative heat transfer is investigated in a 500-mm bed of 7-hole pellets. At industrially relevant temperatures (250 - 800 degrees C) and with a steam-reforming gas-phase mixture, the S2S and DOM radiation models were applied. Neglecting radiation results in temperatures being up to 6 % lower. In this case, the main driver is surface-to-surface (S2S) radiation. Additional modeling recommendations are given.

引用

页码：583 / 591

页数：9

共 50 条

[31] What happens in a catalytic fixed-bed reactor for n-butane oxidation to maleic anhydride? Insights from spatial profile measurements and particle resolved CFD simulations
Dong, Ying
Geske, Michael
Korup, Oliver
Ellenfeld, Nils
Rosowski, Frank
Dobner, Cornelia
Horn, Raimund
CHEMICAL ENGINEERING JOURNAL, 2018, 350 : 799 - 811
[32] CFD simulation of fixed-bed methanation reactor with double catalyst layers
College of Chemistry and Chemical Industry, Xinjiang University, Urumqi
Xinjiang
830046, China
Huagong Xuebao, 9 (3462-3469): : 3462 - 3469
[33] A Trickle Fixed-Bed Recycle Reactor Model for the Fischer-Tropsch Synthesis
Brunner, Kyle M.
Duncan, Joshua C.
Harrison, Luke D.
Pratt, Kyle E.
Peguin, Robson P. S.
Bartholomew, Calvin H.
Hecker, William C.
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING, 2012, 10
[34] Potential for metal foams to act as structured catalyst supports in fixed-bed reactors
Kolaczkowski, Stan T.
Awdry, Serpil
Smith, Tony
Thomas, Dave
Torkuhl, Lars
Kolvenbach, Robin
CATALYSIS TODAY, 2016, 273 : 221 - 233
[35] CFD model of coal pyrolysis in fixed bed reactor
Qian, Yanan
Zhan, Jinhui
Yu, Yin
Xu, Guangwen
Liv, Xiaoxing
CHEMICAL ENGINEERING SCIENCE, 2019, 200 : 1 - 11
[36] Computational modeling of pyrolysis and combustion in a fixed-bed waste gasifier
Tsai, Johnny Chung-Yin
Im, Hong G.
Kim, Taig-Young
Kim, Jaeho
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, 2012, 22 (08) : 949 - 970
[37] Investigation of factors affecting channelling in fixed-bed solid fuel combustion using CFD
Duffy, Neil T. M.
Eaton, John A.
COMBUSTION AND FLAME, 2013, 160 (10) : 2204 - 2220
[38] Fiber-Optic Temperature Measurements in Fixed-Bed Reactors for Model-Based Evaluation of Effective Radial Thermal Conductivity
Stegehake, Carolin
Gruenewald, Marcus
Zanthoff, Horst-Werner
Hecht, Corinna
CHEMIE INGENIEUR TECHNIK, 2018, 90 (05) : 602 - 614
[39] Numerical modeling of the combustion of densified wood under fixed-bed conditions
Collazo, J.
Porteiro, J.
Patino, D.
Granada, E.
FUEL, 2012, 93 (01) : 149 - 159
[40] Fluid dynamic characterisation of porous solids in catalytic fixed-bed reactors
Horneber, T.
Rauh, C.
Delgado, A.
MICROPOROUS AND MESOPOROUS MATERIALS, 2012, 154 : 170 - 174

← 1 2 3 4 5 →