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Comparative Study on Soot Reduction, Soot Nanostructure and Oxidation Reactivity of n-heptane/DMC and Isooctane/DMC Inverse Diffusion Flames

煤烟减小,煤烟 Nanostructure 和 n-heptane/DMC 和异辛烷 / 直接数字控制反的散开火焰的氧化反应上的比较学习

作     者:JIANG Bo PALADPOKKRONG Chutikarn LIU Dong JIANG Bo;PALADPOKKRONG Chutikarn;LIU Dong

作者机构:MIIT Key Laboratory of Thermal Control of Electronic EquipmentSchool of Energy and Power EngineeringNanjing University of Science and TechnologyNanjing 210094China Advanced Combustion LaboratorySchool of Energy and Power EngineeringNanjing University of Science and TechnologyNanjing 210094China Jiangsu Province Key Laboratory of Aerospace Power SystemNanjing 210016China 

出 版 物:《Journal of Thermal Science》 (热科学学报(英文版))

年 卷 期:2020年第29卷第5期

页      面:1269-1281页

核心收录:

学科分类:083002[工学-环境工程] 0830[工学-环境科学与工程(可授工学、理学、农学学位)] 08[工学] 

基  金:This work was supported by the National Natural Science Foundation of China(51706103,51822605,51776181) the Fundamental Research Funds for the Central Universities,China(CEPE2019010,30920031103) the Open Project of State Key Laboratory of Clean Energy Utilization,Zhejiang University,China(ZJUCEU2017011) Bo Jiang thanks the great support given by the China Scholarship Council(201906845024) 

主  题:inverse diffusion flame n-heptane/DMC isooctane/DMC soot reduction soot nanostructure oxidation reactivity 

摘      要:Dimethyl carbonate(DMC)is an environmentally oxygenated compound which can be used efficiently for soot *** paper compared the soot reduction,soot nanostructure and oxidation reactivity from inverse diffusion flames(IDFs)of the hydrocarbon fuels,namely n-heptane and isooctane doped with *** of DMC additions on soot reduction were *** addition is more effective for the soot reduction of n-heptane/DMC IDF than isooctane/DMC *** morphology and nanostructures of soot particles were investigated by Transmission Electron Microscopy(TEM)and High Resolution TEM(HRTEM),and the soot graphitization and oxidation reactivity were analyzed by X-ray Diflfraction(XRD)and Thermogravimetric Analyzer(TGA),*** results of HRTEM images showed that many larger aggregates were observed for the structures of soot particles from IDFs with DMC *** soot particles exhibited more liquid-like material,more amorphous,higher disorganized layers,and less graphitic than that of IDFs without DMC *** increasing of DMC blending rate,soot particles changed younger to have shorter fringe length,higher tortuosity,and greater fringe *** on the XRD and TGA results,the degree of the soot graphitization level decreased;the soot mass lost significantly faster,and the soot become more reactive.

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