本文主要研究了基于热泳沉积机理的碳黑颗粒沉积法(TPD方法)在高速空气流非预混火焰中测量碳黑容积份额的适用性问题.传统的TPD方法都只是在低速空气流非预混火焰中应用,而且用于数据分析的碳黑沉积率表达式只考虑了热泳沉积机理.我们通过构造出一个新的从热电偶节点发射率变化率中直接得到碳黑沉积率表达式,分析了碳黑沉积率在沉积初始阶段随时间的变化.发现在高速空气流火焰中,热泳沉积机理并不是推动碳黑颗粒在热电偶节点表面沉积的主要机理,但碳黑沉积率还是明显呈现出了和碳黑容积份额的正相关关系.
参考文献
| [1] | Eisner A D;Rosner D E .Experimental Studies of Soot Particle Thermophoresis in Non-Isothermal Combustion Gases Using Thermocouple Response Techniques[J].Cornbust Flame,1985,61:153 166. |
| [2] | Charles S McEnally Umit O KOylu;Lisa D Pfefferle et al.Soot Volume Fraction and Temperature Measurements in Laminar Nonpremixed Flames Using Thermocouples[J].Combustion and Flame,1997,109:701-720. |
| [3] | McEnally CS.;Pfefferle LD. .Soot formation in methane/air nonpremixed flames doped with small quantities of C3 hydrocarbons[J].Combustion and Flame,1998(4):545-558. |
| [4] | McEnally CS.;Pfefferle LD. .Species and soot concentration measurements in a methane/air nonpremixed flame doped with C4 hydrocarbons[J].Combustion and Flame,1998(1/2):81-92. |
| [5] | charles S.Mcenally;Lisa d.Pfefferlf .Comparison of Non-Fuel Hydrocarbon Concentrations Measured in coflowing Nonpremixed Flames Fueled with Small Hydrocarbons[J].Combustion and Flame,1999(1/2):362-372. |
| [6] | Santoro R J;Semerjian HG;Dobbins R A .Soot Particle Measurements in Diffusion Flames[J].Combustion and Flame,1983,51:203-218. |
| [7] | 熊倩,周怀春,艾育华,卢晶.火焰辐射及偶丝导热对热电偶测温影响的数值分析[J].工程热物理学报,2007(z2):212-216. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%