Computer Simulations of the Dense Gas- Solid Two-Phase Flow in Desulfurization Tower

Author

Zheng Jianxiang ; Zhang Weiling ; Xu Chunxing

Author_Institution

Sch. of Energy & Power Eng., Northeast Dianli Univ., Jilin, China

fYear

2012

fDate

27-29 March 2012

Firstpage

1

Lastpage

4

Abstract

The dense gas and solid two-phase flow model in the desulfurization tower is presented based on the LES and the dense kinetic theory of granular flow, The kinetic-frictional constitutive model for dense assemblies of solids is incorporated in the simulations of desulfurization tower. This model treats the kinetic and frictional stresses of particles additively. the distribution of particles velocity and concentration in the three zones of spouted desulfurization flow, spout, annulus and fountain were numerical studied. The results of simulation showed that the increase of nozzle velocity have contributed to the gas and solid flow behavior in spouted desulfurization tower.

Keywords

flue gas desulphurisation; granular flow; kinetic theory; nozzles; numerical analysis; poles and towers; LES; computer simulation; dense gas-solid two-phase flow; dense kinetic theory; desulfurization tower; frictional stresses; granular flow; kinetic stresses; kinetic-frictional constitutive model; nozzle velocity; Equations; Friction; Mathematical model; Numerical models; Poles and towers; Solids; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific

Conference_Location

Shanghai

ISSN

2157-4839

Print_ISBN

978-1-4577-0545-8

Type

conf

DOI

10.1109/APPEEC.2012.6307056

Filename

6307056