Numerical study of furnace process of a 600 MW pulverized coal boiler under low load with SNCR application

Q. X. Cao; Y. Shi; H. Liu; C. H. Yang; S. H. Wu

Numerical study of furnace process of a 600 MW pulverized coal boiler under low load with SNCR application

Q. X. Cao
, Y. Shi
, H. Liu^*
, C. H. Yang
, S. H. Wu

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Numerical simulation of flow, heat transfer, and combustion process in a 600 MW pulverized coal boiler under low load is performed using Computational Fluid Dynamics (CFD) code Fluent. The distributions of temperature and species were obtained and their influences on Selective non-catalytic reduction (SNCR) were analyzed. The results indicate that the furnace temperature changed significantly as the operation load declines. The furnace space with proper temperature for SNCR reaction becomes lower with decreasing of operation load. As the load falls off, the available O2 concentration for SNCR reactions rises gently and the initial NOx concentration for SNCR reactions debases slightly. These variations can have some influence on the SNCR process. For the upper furnace where the temperature is suitable for SNCR reactions, the CO concentration is close to 0 under different load. Consequently, the SNCR process will not be affected by CO based on the calculation in this work.

Original language	English
Title of host publication	Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion
Publisher	Springer-Verlag Berlin Heidelberg
Pages	108-112
Number of pages	5
ISBN (Print)	3540356061, 9783642304446
State	Published - 2012
Event	7th International Symposium on Coal Combustion: Cleaner Combustion and Sustainable World, ISCC - Harbin, China Duration: 17 Jul 2011 → 20 Jul 2011

Publication series

Name	Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion

Conference

Conference	7th International Symposium on Coal Combustion: Cleaner Combustion and Sustainable World, ISCC
Country/Territory	China
City	Harbin
Period	17/07/11 → 20/07/11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Furnace process
Low load
Numerical simulation
Selective non-catalytic reduction

Cite this

Cao, Q. X., Shi, Y., Liu, H., Yang, C. H., & Wu, S. H. (2012). Numerical study of furnace process of a 600 MW pulverized coal boiler under low load with SNCR application. In Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion (pp. 108-112). (Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion). Springer-Verlag Berlin Heidelberg.

Cao, Q. X. ; Shi, Y. ; Liu, H. et al. / Numerical study of furnace process of a 600 MW pulverized coal boiler under low load with SNCR application. Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion. Springer-Verlag Berlin Heidelberg, 2012. pp. 108-112 (Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion).

@inproceedings{43b69a1fb2424fc799071e42af29abec,

title = "Numerical study of furnace process of a 600 MW pulverized coal boiler under low load with SNCR application",

abstract = "Numerical simulation of flow, heat transfer, and combustion process in a 600 MW pulverized coal boiler under low load is performed using Computational Fluid Dynamics (CFD) code Fluent. The distributions of temperature and species were obtained and their influences on Selective non-catalytic reduction (SNCR) were analyzed. The results indicate that the furnace temperature changed significantly as the operation load declines. The furnace space with proper temperature for SNCR reaction becomes lower with decreasing of operation load. As the load falls off, the available O2 concentration for SNCR reactions rises gently and the initial NOx concentration for SNCR reactions debases slightly. These variations can have some influence on the SNCR process. For the upper furnace where the temperature is suitable for SNCR reactions, the CO concentration is close to 0 under different load. Consequently, the SNCR process will not be affected by CO based on the calculation in this work.",

keywords = "Furnace process, Low load, Numerical simulation, Selective non-catalytic reduction",

author = "Cao, \{Q. X.\} and Y. Shi and H. Liu and Yang, \{C. H.\} and Wu, \{S. H.\}",

year = "2012",

language = "英语",

isbn = "3540356061",

series = "Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion",

publisher = "Springer-Verlag Berlin Heidelberg",

pages = "108--112",

booktitle = "Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion",

note = "7th International Symposium on Coal Combustion: Cleaner Combustion and Sustainable World, ISCC ; Conference date: 17-07-2011 Through 20-07-2011",

}

Cao, QX, Shi, Y, Liu, H , Yang, CH & Wu, SH 2012, Numerical study of furnace process of a 600 MW pulverized coal boiler under low load with SNCR application. in Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion. Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion, Springer-Verlag Berlin Heidelberg, pp. 108-112, 7th International Symposium on Coal Combustion: Cleaner Combustion and Sustainable World, ISCC, Harbin, China, 17/07/11.

Numerical study of furnace process of a 600 MW pulverized coal boiler under low load with SNCR application. / Cao, Q. X.; Shi, Y.; Liu, H. et al.
Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion. Springer-Verlag Berlin Heidelberg, 2012. p. 108-112 (Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Numerical study of furnace process of a 600 MW pulverized coal boiler under low load with SNCR application

AU - Cao, Q. X.

AU - Shi, Y.

AU - Liu, H.

AU - Yang, C. H.

AU - Wu, S. H.

PY - 2012

Y1 - 2012

N2 - Numerical simulation of flow, heat transfer, and combustion process in a 600 MW pulverized coal boiler under low load is performed using Computational Fluid Dynamics (CFD) code Fluent. The distributions of temperature and species were obtained and their influences on Selective non-catalytic reduction (SNCR) were analyzed. The results indicate that the furnace temperature changed significantly as the operation load declines. The furnace space with proper temperature for SNCR reaction becomes lower with decreasing of operation load. As the load falls off, the available O2 concentration for SNCR reactions rises gently and the initial NOx concentration for SNCR reactions debases slightly. These variations can have some influence on the SNCR process. For the upper furnace where the temperature is suitable for SNCR reactions, the CO concentration is close to 0 under different load. Consequently, the SNCR process will not be affected by CO based on the calculation in this work.

AB - Numerical simulation of flow, heat transfer, and combustion process in a 600 MW pulverized coal boiler under low load is performed using Computational Fluid Dynamics (CFD) code Fluent. The distributions of temperature and species were obtained and their influences on Selective non-catalytic reduction (SNCR) were analyzed. The results indicate that the furnace temperature changed significantly as the operation load declines. The furnace space with proper temperature for SNCR reaction becomes lower with decreasing of operation load. As the load falls off, the available O2 concentration for SNCR reactions rises gently and the initial NOx concentration for SNCR reactions debases slightly. These variations can have some influence on the SNCR process. For the upper furnace where the temperature is suitable for SNCR reactions, the CO concentration is close to 0 under different load. Consequently, the SNCR process will not be affected by CO based on the calculation in this work.

KW - Furnace process

KW - Low load

KW - Numerical simulation

KW - Selective non-catalytic reduction

UR - https://www.scopus.com/pages/publications/84866105465

M3 - 会议稿件

AN - SCOPUS:84866105465

SN - 3540356061

SN - 9783642304446

T3 - Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion

SP - 108

EP - 112

BT - Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion

PB - Springer-Verlag Berlin Heidelberg

T2 - 7th International Symposium on Coal Combustion: Cleaner Combustion and Sustainable World, ISCC

Y2 - 17 July 2011 through 20 July 2011

ER -

Cao QX, Shi Y, Liu H , Yang CH, Wu SH. Numerical study of furnace process of a 600 MW pulverized coal boiler under low load with SNCR application. In Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion. Springer-Verlag Berlin Heidelberg. 2012. p. 108-112. (Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion).

Numerical study of furnace process of a 600 MW pulverized coal boiler under low load with SNCR application

Abstract

Publication series

Conference

UN SDGs

Keywords

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