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| 1 | Review of soot measurement in hydrocarbon-air flames显示文摘Soot,which is produced in fuel-rich parts of flames as a result of incomplete combustion of hydrocarbons,is the No.2 contributor to global warming after carbon dioxide.Developing soot measurement techniques is important to understand soot formation mechanism and control soot emission.The various soot measurement techniques,such as thermophoretic sampling par-ticles diagnostics followed by electron microscopy analysis,thermocouple particle densitometry,light extinction,laser-induced incandescence,two-color method,and emission computed tomography,are reviewed in this paper.The measurement principle and application cases of these measurement methods are described in detail.The development trend of soot measurement is to realize the on-line measurement of multi-dimensional distributions of temperature,soot volume fraction,soot particle size and other parameters in hydrocarbon-air flames.Soot measurement techniques suitable for both small flames in laboratories and large-scale flames in industrial combustion devices should be developed.Besides,in some special situations,such as high-pressure,zero gravity and micro-gravity flames,soot measurement also should be provided. | LOU Chun,CHEN Chen,SUN YiPeng&ZHOU HuaiChun State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China | 2010 | Science China(Technological Sciences)2010，53，8： | 13 |
| 2 | Modeling of Soot Formation in Gas Burner Using Reduced Chemical Kinetics Coupled with CFD Code显示文摘A computational study of soot formation in ethylene/air coflow jet diffusion flame at atmospheric pres-sure was conducted using a reduced mechanism and soot formation model. A 20-step mechanism was derived from the full mechanism using sensitivity analysis,reaction path analysis and quasi steady state(QSS) approximation. The model in premixed flame was validated and with computing savings in diffusion flame was applied by incor-porating into a CFD code. Simulations were performed to explore the effect of coflow air on flame structure and soot formation. Thermal radiation was calculated by a discrete-ordinates method,and soot formation was predicted by a simple two-equation soot model. Model results are in good agreement with those from experiment data and detailed mechanism at atmospheric conditions. The soot nucleation,growth,and oxidation by OH are all enhanced by decrease in coflow air velocity. The peak soot volume fraction region appears in the lower annular region be-tween the peak flame temperature and peak acetylene concentration locations,and the high soot oxidation rate due to the OH attack occurs in the middle annular region because of high temperature. | ZHANG Yindi ZHOU Huaichun XIE Mingliang FANG Qingyan WEI Yan | 2010 | Chinese Journal of Chemical Engineering2010，18，6： | 4 |
| 3 | The impact of combustion characteristics and flame structure on soot formation in oxy-enhanced and oxy-fuel diffusion flames显示文摘Based on a detailed chemical mechanism, impacts of combustion characteristics and flame structure on soot formation in opposed-flow diffusion ethylene flames was studied with different stoichiometric mixture fractions in O2/N2and O2/CO2atmospheres. The results showed the followings. 1) In both atmospheres, with the increase of stoichiometric mixture fraction, the flame structure changed significantly. The stagnation plane shifted toward the oxidizer side. Furthermore, there were less C2H2 but more O and OH to occur in the soot inception zone, therefore the amount of soot in the flame decreased. 2) Compared withN2, CO2had a suppression effect on soot formation, which was mainly due to thermal and direct chemical interaction effects of CO2. This is because the specific heat capacity of CO2is higher than that of N2, which will cause the flame temperature to drop,and mole fractions of C2H2, H, O, OH and main PAHs to decrease. Soot oxidation played a dominant role, while soot surface growth was attributed to the secondary position. Meanwhile, when CO2 abounded in the flame, OH concentration was increased through the backward reaction of CO+OH=CO2+H, and this would be conducive to the oxidation of soot precursor and incipient soot particles. In addition, the results of maximum particle density indicated the thermal effect of CO2on soot for-mation is more important than the direct chemical interaction effect. | GUO Zhe LOU Chun LIU ZhengDong ZHOU HuaiChun | 2013 | Science China(Technological Sciences)2013，56，7： | 3 |
| 4 | Deduction of the two-dimensional distribution of temperature in a cross section of a boiler furnace from images of flame radiation显示文摘 | Lou Chun Zhou Huaichun | 2005 | Combustion and Flame2005，143，12： | 1 |
| 5 | Experimental Investigations on Visualization of Three-dimensional Temperature Distributions in a Large-scale Pulverized coal-fired Boiler Furnace显示文摘 | Zhou Huaichun Lou Chun Cheng Qiang | 2005 | Proc Combust Inst2005，30，： | 1 |
| 6 | Spatial and temporal film thickness measurement of a soap bubble based on large lateral shearing displacement interferometry 显示文摘 | LV Wei ZHOU Huaichun LOU Chun | 2012 | Applied Optics2012，51，36： | 1 |
| 7 | Reconstruction of Temperature Distribution in a 2-D Absorbing-Emitting System from Radiant Energy Images显示文摘 | Zhou Huaichun Feng Sheng Han Shudong | 2000 | JSME International Journal Series B2000，43，1： | 1 |
| 8 | Deduction of the two-dimensional distribution of temperature in a cross section of a boiler furnace from images of flame radiation 显示文摘 | Lou Chun Zhou Huaichun | 2005 | Combustion and Flame2005，143，12： | 1 |
| 9 | Experimental investigations on visualization of three-dimensional temperature distributions in a large-scale pulverized-coal-fired boiler furnace 显示文摘 | Zhou Huaichun Lou Chun Cheng Qiang | 2005 | Proceedings of the Combustion Institute2005，30，1： | 1 |
| 10 | The DRESOR method for radiative heat transfer in a one-dimensional medium with variable refractive index显示文摘 | Zhichao Wang Qiang Cheng Guihua Wang Huaichun Zhou | 2011 | Journal of Quantitative Spectroscopy and Radiative Transfer2011，，18： | 1 |
| 11 | Spatial and temporal film thickness measurement of a soap bubble based on large lateral shearing displacement interfer- ometry显示文摘 | Lv Wei Zhou Huaichun Lou Chun | 2012 | Applied optics2012，51，36： | 1 |
| 12 | Monitoring of 2-D combustion temperature images in a 670 t/h Utility Boiler and simulation on its application in combustion control 显示文摘 | HUAICHUN ZHOU SHISHUAI ZHANG | 2000 | Developments in Chemical Engineering and Mineral Processing2000，8，34： | 1 |
| 13 | A combustion- monitoring system with 3-D temperature reconstruction based on flame - image processing technique显示文摘 | LUO ZIXUE ZHOU HUAICHUN | 2007 | IEEE Transactions on Instrumentation and Measurement2007，56，5： | 1 |
| 14 | Development of new technology for coal gasification purification and research on the formation mechanism of pollutants显示文摘Coal-fired power generation is the main source of CO_(2)emission in China.To solve the problems of declined efficiency and increased costs caused by CO_(2)capture in coal-fired power systems,an integrated gasification fuel cell(IGFC)power generation technology was developed.The interaction mechanisms among coal gasification and purification,fuel cell and other components were further studied for IGFCs.Towards the direction of coal gasification and purification,we studied gasification reaction characteristics of ultrafine coal particles,ash melting characteristics and their effects on coal gasification reactions,the formation mechanism of pollutants.We further develop an elevated temperature/pressure swing adsorption rig for simultaneous H_(2)S and CO_(2)removals.The results show the validity of the Miura-Maki model to describe the gasification of Shenhua bituminous coal with a good fit between the predicted DTG curves and experimental data.The designed 8–6–1 cycle procedure can effectively remove CO_(2)and H_(2)S simultaneously with removal rate over 99.9%.In addition,transition metal oxides used as mercury removal adsorbents in coal gasified syngas were shown with great potential.The techniques presented in this paper can improve the gasification efficiency and reduce the formation of pollutants in IGFCs. | Shu Zheng Yixiang Shi Zhiqi Wang Pengjie Wang Gang Liu Huaichun Zhou | 2021 | International Journal of Coal Science & Technology2021，8，3： | 1 |
| 15 | Quasi-constant temperature combustion for improving overall performance of a coal-fired boiler显示文摘 | Chen Donglin Zheng Chuguang Zhou Huaichun | 2003 | Combustion and Flame2003，，： | 1 |
| 16 | A simple judgment method of gray property of flames based on spectral analysis and the two-color method for measure- ments of temperatures and emissivity 显示文摘 | Zhou Huaichun | 2011 | Proc Combus Inst2011，33，1： | 1 |
| 17 | Experimental investigations on visualization of three-dimensional temperature distributions in a large-scale pulverized-coal-fired boiler furnace显示文摘 | Zhou Huaichun Lou Chun Cheng Qiang | 2005 | Proceedings of the Combustion Institute2005，30，1： | 1 |
| 18 | Experimental investigations on visualization of three dimensional temperature distribution in a large scale pulverized-coalfired boiler furnace显示文摘 | HuaiChun Zhou Chun Lou Qiang Chen | 2005 | Proceeding of the Combustion Institute2005，，30： | 1 |
| 19 | Visualization of three-dimensional temperature distributions in a large-scale furnace via regularized reconstruction from radiative energy images:numerical studies显示文摘 | Zhou Huaichun Han Shudong Sheng Feng | 2002 | Journal of Quantitative Spectroscopy and Radiative Transfer2002，72，4： | 1 |
| 20 | An inverse radiative transfer problem of simultaneously estimating profiles of temperature and radiative parameters from boundary intensity and temperature measurements显示文摘 | Zhou Huaichun Hou Yubo Chen Donglin | 2002 | Journal of Quantitative Spectroscope and Radiative Transfer2002，74，5： | 1 |
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