Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Shanghai Jiaotong University》 2013-09
Add to Favorite Get Latest Update

Mathematical Model of Pulverized Coal Ignition and Combustion Considering Various Pyrolysis Products

QI Yong-feng;ZHANG Ming-chuan;YU Juan;School of Energy and Power Engineering,Yangzhou University;Institute of Thermal Energy Engineering,Shanghai Jiaotong University;  
The transient whole-coupling model in a spherical coordinate system on single pulverized coal pyrolysis and combustion was developed,taking into consideration various pyrolysis product release,heat transfer,mass transfer,and chemical reactions.The igntion and combustion characteristics of Shenmu bituminous coal were simulated.The result shows that the ignition of pulverized coal begins from volatiles,and the volatile flame can move rapidly to a position departing from the center of the coal particle by about29 times radius,due to the limitation of oxygen diffusion;when the coal pyrolysis is completed,the CO generated by surface oxidation reaction has been ignited,the flame returns almost to the coke particle surface,the particle temperature rises abruptly,and the coke combustion is controlled by the surface oxidation reaction;with the combustion rate increasing,the coke combustion begins to be controlled by the surface reducing reaction,and the char flame departs from the particle surface again.
【Fund】: 国家自然科学基金项目(51106133);; 江苏省自然科学基金项目(BK2010314);; 江苏省高校自然科学研究面上项目(10KJB470010 12KJB510032)资助
【CateGory Index】: TK16
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Citations】
Chinese Journal Full-text Database 2 Hits
1 ZHANG Jian ZHANG Ming-Chuan YU Juan QI Yong-Feng LIN Yu-Yu (School of Mechanical Engineering,Shanghai Jiaotong Univ.,Shanghai 200240,China);THEORETICAL COMPARISONS AND EXPERIMENTAL VALIDATION OF THE MOVING FLAME FRONT(MFF)MODEL[J];Journal of Engineering Thermophysics;2010-01
2 YU Juan, ZHANG Ming-chuan, ZHOU Yue-gui, FAN Wei-dong, FAN Hao-jie (Institute of Thermal Energy Engineering, School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China);Influence of Volatile Flame on Combustion of Char Particle[J];Journal of Combustion Science and Technology;2006-02
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 ZHANG Jian ZHANG Ming-Chuan YU Juan QI Yong-Feng LIN Yu-Yu (School of Mechanical Engineering,Shanghai Jiaotong Univ.,Shanghai 200240,China);THEORETICAL ANALYSIS AND SIMPLE SIMULATION METHOD ON VOLATILE FLAME BEHAVIOR OF PULVERIZED COAL PARTICLE[J];Journal of Engineering Thermophysics;2009-04
2 ZHANG Jian ZHANG Ming-Chuan YU Juan LIN Yu-Yu ZHANG Chu (School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China);APPLICATION RESEARCH OF MOVING FLAME FRONT MODEL WITH FINITE-RATE HOMOGENOUS REACTION[J];Journal of Engineering Thermophysics;2010-04
3 Li Chao;Qiao Musen;Wang Chunbo;School of Energy Power and Mechanical Engineering,North China Electric Power University;;Study on Characteristics of NO Emission in Pulverized Coal and Char Combustion in Fixed Bed[J];Electric Power Science and Engineering;2013-09
4 JIN Xu-Dong;ZHOU Yue-Gui;GU Guang-Jin;XU Yang-Yang;Institute of Thermal Energy Engineering,School of Mechanical Engineering,Shanghai Jiao Tong University;;Numerical Simulation of Turbulence-Chemical Interaction on Pulverized Coal MILD Combustion[J];Journal of Engineering Thermophysics;2014-01
5 WANG Wei;WANG Shu-qi;ZHONG Wan-li;LIU Zhi-li;DENG Ping;Electric Power Research Institute of Guangdong Power Grid Corporation;Energy and Power Engineer Institute,Changsha University of Science and Technology;;Research on combustion stability indexes of pulverized coal jet[J];Journal of Electric Power Science and Technology;2014-01
6 MEI Zhen-Feng;WANG Fei-Fei;ZHANG Jian-Peng;LI Peng-Fei;MI Jian-Chun;State Key Laboratory of Turbulence and Complex Systems,Peking University;;Effect of Primary Air Stream Velocity on MILD Combustion of Pulverized Coal in High Temperature Preheated Air[J];Journal of Engineering Thermophysics;2014-04
7 Liu Jun;Ma Fei;Li Hanxu;School of Chemical Engineering, Anhui University of Science and Technology;Coal quality supervision and inspection station of Anhui province;;The Experimental Research of High Sulfur Petroleum Coke Blending LY Coal Gasify[J];Guangdong Chemical Industry;2014-05
8 MEI Shuxia,XIE Junlin,HE Feng,JIN Mingfang(School of Material Science & Engineering,Wuhan University of Technology,Wuhan 430070,Hubei,China);Numerical simulation of coupling mechanism between pulverized coal combustion and calcium carbonate decomposition in double-sprayed precalciner[J];CIESC Journal;2013-03
9 HU Peng;SUN Ping;XIA Shun-wu;MEI De-qing;School of Automobile and Traffic Engineering,Jiangsu University;;Evaporation and Combustion of a Single n-Heptane Droplet in Air with High Concentration CO_2 and Steam[J];Transactions of CSICE;2013-06
10 LIU Yan;LIU Yan;ZHANG Shao-hua;School of Science,Hangzhou Dianzi University;;Research status and development summary of oxygen-fuel combustion technology[J];Energy Engineering;2013-06
【Secondary Citations】
Chinese Journal Full-text Database 3 Hits
1 ZHANG MingChuan;YU Juan School of Mechanical Engineering, Shanghai Jiaotong Univ., Shanghai 200240, China;MOVING FLAME FRONT (MFF) MODEL CONSIDERING THE SURFACE REDUCTION OF CARBON PARTICLE[J];Journal of Engineering Thermophysics;2004-03
2 ZHANG Jian ZHANG Ming-Chuan YU Juan QI Yong-Feng LIN Yu-Yu (School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China);IMPROVEMENT FOR LOCATING THE FLAME FRONT IN THE MOVING FLAME FRONT(MFF)MODEL[J];Journal of Engineering Thermophysics;2007-S2
3 YU Juan, ZHANG Mingchuan, ZHAO Guofeng, FAN Weidong, ZHOU Yuegui(Department of Energy Engineering, Shanghai Jiaotong University, Shanghai 200240, China);Temperature Measurement for Particle Laden Stream by FTIR Emission/Transmission Spectroscopy[J];Journal of Combustion Science and Technology;2003-05
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved