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Numerical simulation and cold experimental research of a low-NOx combustion technology for pulverized low-volatile coal
Wang, Jing1; Zheng, Kailiang2; Singh, Ravinder2; Lou, Helen2; Hao, Jiangping3; Wang, Baofeng1; Cheng, Fangqin1
2017-03-05
Source PublicationAPPLIED THERMAL ENGINEERING
ISSN1359-4311
Volume114Pages:498-510
Abstract

Large quantities of low-volatile coal are utilized in power plants throughout China. With increasingly stringent environmental regulations, it is important to develop and deploy low-NOx combustion technologies for pulverized coal boilers burning low-volatile coal. The objective of this study was to investigate a novel decoupling combustion system for low-volatile coal via experiments and computational fluid dynamics (CFD). The combustion system includes horizontal fuel-rich/lean low-NOx burners (LNB) and the associated air distribution system for a polygonal tangentially fired boiler (PTFB). The effects of coal particle diameter and coal feeding rate on the gas/particle flow characteristics of the burner, and the cold state aerodynamic field of the PTFB were analyzed in detail. The structural design of the LNB results in advantageous gas/particle flow characteristics and the PTFB improved the distribution of the flow field. The CFD models and simulation results were validated by comparing with those of cold experiments data. The simulation results demonstrated that this low-NOx combustion technology enhances staged combustion at different scales, which can reduce NOx generation significantly. In the industrial application on a 300 MW pulverized coal boiler, installation of the LNBs improved the stability of low-volatile coal combustion and reduced NOx emissions significantly. These research findings provide valuable guidance to the design of low-NOx combustion system for pulverized coal boilers using low volatile coal. (C) 2016 Elsevier Ltd. All rights reserved.

KeywordLow-nox Burner Tangentially Fired Boiler Decoupling Combustion Low-volatile Coal
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.applthermaleng.2016.11.204
Indexed BySCI
Language英语
WOS KeywordTangentially-fired Furnace ; Fuel-rich/lean Burner ; Utility Boiler ; Flow ; Emission ; Moisture ; Burnout ; Scale
WOS Research AreaThermodynamics ; Energy & Fuels ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
Funding OrganizationChina National Key Technology Support Program(2013BAC14B02) ; Shanxi Provincial Science and Technology Major Projects(MD2015-01) ; China Guodian Corporation ; China Guodian Corporation, Jinneng Group CO., LTD ; Gemeng International CO., LTD.
WOS IDWOS:000395725400045
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22066
Collection多相复杂系统国家重点实验室
Affiliation1.Shanxi Univ, Inst Resource & Environm, State Environm Protect Key Lab Efficient Utilizat, Taiyuan 030006, Peoples R China
2.Lamar Univ, Dan F Smith Dept Chem Engn, Beaumont, TX 77710 USA
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multi phase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jing,Zheng, Kailiang,Singh, Ravinder,et al. Numerical simulation and cold experimental research of a low-NOx combustion technology for pulverized low-volatile coal[J]. APPLIED THERMAL ENGINEERING,2017,114:498-510.
APA Wang, Jing.,Zheng, Kailiang.,Singh, Ravinder.,Lou, Helen.,Hao, Jiangping.,...&Cheng, Fangqin.(2017).Numerical simulation and cold experimental research of a low-NOx combustion technology for pulverized low-volatile coal.APPLIED THERMAL ENGINEERING,114,498-510.
MLA Wang, Jing,et al."Numerical simulation and cold experimental research of a low-NOx combustion technology for pulverized low-volatile coal".APPLIED THERMAL ENGINEERING 114(2017):498-510.
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