3D numerical simulation of gas-solid hydrodynamics and coal combustion in an industrial scale circulating fluidized bed

Massoud Massoudi Farid, Hyo Jae Jeong, Jong Min Lee, Dong Won Kim, Jungho Hwang

Research output: Contribution to conferencePaper

Abstract

In this study, three dimensional numerical simulation of gas and sand particle hydrodynamics along with coal combustion in an industrial scale circulating fluidized bed (CFB) (including riser, cyclone and return leg) was carried out using a commercial code, ANSYS FLUENT. For modeling sand and gas hydrodynamics, Eulerian-Eulerian method (multiphase granular model), was used while for modeling coal particle trajectories, Eulerian- Lagrangian method (discreet phase model, DPM) was used. Also gas phase chemical reactions were solved via the Finite-Rate/Eddy-Dissipation model and particle phase chemical reaction were solved by multiple reaction model. User defined function (UDF) was used to re-inject the sand particles which left the domain via cyclone outlet. Simulation results such as exit gas temperature, sand volume fraction, pressure loop, and mole fraction of combustion products were compared with real data obtained from a 340 MWe CFB boiler located in Yeosu, Korea and showed good agreement.

Original languageEnglish
Pages2130-2165
Number of pages36
Publication statusPublished - 2013 Jan 1
Event30th Annual International Pittsburgh Coal Conference 2013, PCC 2013 - Beijing, China
Duration: 2013 Sep 152013 Sep 18

Other

Other30th Annual International Pittsburgh Coal Conference 2013, PCC 2013
CountryChina
CityBeijing
Period13/9/1513/9/18

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All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology

Cite this

Farid, M. M., Jeong, H. J., Lee, J. M., Kim, D. W., & Hwang, J. (2013). 3D numerical simulation of gas-solid hydrodynamics and coal combustion in an industrial scale circulating fluidized bed. 2130-2165. Paper presented at 30th Annual International Pittsburgh Coal Conference 2013, PCC 2013, Beijing, China.