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CFD analysis of the influence of centrifugal separator geometry modification on the pulverized coal distribution at the burners

Authorized Users Only
2014
Authors
Kozić, Mirko
Ristić, Slavica
Puharić, Mirjana
Linić, Suzana
Article (Published version)
Metadata
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Abstract
This paper presents the results of 3D numerical flow simulation in the ventilation mill (VM) and air mixture channel (AMC) of Kostolac B power plant, where a centrifugal separator with adjustable blade angle is used. Numerical simulations of multiphase flow were performed using the Euler-Euler and the Euler-Lagrange approach of the ANSYS FLUENT software package. The geometry of the numerical model was almost identical to the VM and AMC of Kostolac B, except for the smallest details. An unstructured tetrahedral grid, consisted of almost three million cells, was generated. The main contribution of this paper is the original analysis of the influence of centrifugal separator (CFS) geometry modification on the coal powder distribution at the horizontal burners. The modification of the blade angle, blade shape, and vertical position of the separator and its effect on the coal powder distribution at the burners were analyzed and are published for the first time. Results of the numerical simu...lations were compared with the measurements and can be used in modifying the separator geometry and position to obtain optimal distribution of the pulverized coal at the burners. Application of these results, obtained by numerical methods, ensures significant savings in time and money, in the process of finding the optimal geometry of CFS.

Keywords:
Air mixture duct / Centrifugal separator / Numerical flow simulation / Pulverized coal distribution / Ventilation mill
Source:
Transactions of Famena, 2014, 38, 1, 25-36
Publisher:
  • Transactions of Famena
Funding / projects:
  • Investigation and Optimization of the Technological and Functional Performance of the Ventilation Mill in the Thermal Power Plant Kostolac B (RS-34028)

ISSN: 1333-1124

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_technorep_5759
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5759
Collections
  • Radovi istraživača (Inovacioni centar) / Researchers’ publications (Innovation Centre)
Institution/Community
Inovacioni centar
TY  - JOUR
AU  - Kozić, Mirko
AU  - Ristić, Slavica
AU  - Puharić, Mirjana
AU  - Linić, Suzana
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5759
AB  - This paper presents the results of 3D numerical flow simulation in the ventilation mill (VM) and air mixture channel (AMC) of Kostolac B power plant, where a centrifugal separator with adjustable blade angle is used. Numerical simulations of multiphase flow were performed using the Euler-Euler and the Euler-Lagrange approach of the ANSYS FLUENT software package. The geometry of the numerical model was almost identical to the VM and AMC of Kostolac B, except for the smallest details. An unstructured tetrahedral grid, consisted of almost three million cells, was generated. The main contribution of this paper is the original analysis of the influence of centrifugal separator (CFS) geometry modification on the coal powder distribution at the horizontal burners. The modification of the blade angle, blade shape, and vertical position of the separator and its effect on the coal powder distribution at the burners were analyzed and are published for the first time. Results of the numerical simulations were compared with the measurements and can be used in modifying the separator geometry and position to obtain optimal distribution of the pulverized coal at the burners. Application of these results, obtained by numerical methods, ensures significant savings in time and money, in the process of finding the optimal geometry of CFS.
PB  - Transactions of Famena
T2  - Transactions of Famena
T1  - CFD analysis of the influence of centrifugal separator geometry modification on the pulverized coal distribution at the burners
EP  - 36
IS  - 1
SP  - 25
VL  - 38
UR  - https://hdl.handle.net/21.15107/rcub_technorep_5759
ER  - 
@article{
author = "Kozić, Mirko and Ristić, Slavica and Puharić, Mirjana and Linić, Suzana",
year = "2014",
abstract = "This paper presents the results of 3D numerical flow simulation in the ventilation mill (VM) and air mixture channel (AMC) of Kostolac B power plant, where a centrifugal separator with adjustable blade angle is used. Numerical simulations of multiphase flow were performed using the Euler-Euler and the Euler-Lagrange approach of the ANSYS FLUENT software package. The geometry of the numerical model was almost identical to the VM and AMC of Kostolac B, except for the smallest details. An unstructured tetrahedral grid, consisted of almost three million cells, was generated. The main contribution of this paper is the original analysis of the influence of centrifugal separator (CFS) geometry modification on the coal powder distribution at the horizontal burners. The modification of the blade angle, blade shape, and vertical position of the separator and its effect on the coal powder distribution at the burners were analyzed and are published for the first time. Results of the numerical simulations were compared with the measurements and can be used in modifying the separator geometry and position to obtain optimal distribution of the pulverized coal at the burners. Application of these results, obtained by numerical methods, ensures significant savings in time and money, in the process of finding the optimal geometry of CFS.",
publisher = "Transactions of Famena",
journal = "Transactions of Famena",
title = "CFD analysis of the influence of centrifugal separator geometry modification on the pulverized coal distribution at the burners",
pages = "36-25",
number = "1",
volume = "38",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5759"
}
Kozić, M., Ristić, S., Puharić, M.,& Linić, S.. (2014). CFD analysis of the influence of centrifugal separator geometry modification on the pulverized coal distribution at the burners. in Transactions of Famena
Transactions of Famena., 38(1), 25-36.
https://hdl.handle.net/21.15107/rcub_technorep_5759
Kozić M, Ristić S, Puharić M, Linić S. CFD analysis of the influence of centrifugal separator geometry modification on the pulverized coal distribution at the burners. in Transactions of Famena. 2014;38(1):25-36.
https://hdl.handle.net/21.15107/rcub_technorep_5759 .
Kozić, Mirko, Ristić, Slavica, Puharić, Mirjana, Linić, Suzana, "CFD analysis of the influence of centrifugal separator geometry modification on the pulverized coal distribution at the burners" in Transactions of Famena, 38, no. 1 (2014):25-36,
https://hdl.handle.net/21.15107/rcub_technorep_5759 .

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