稀释比和稀释空气温度对颗粒测量结果的影响研究

Influence of Dilution Ratio and Dilution Air Temperature on Particle Measurement

本文对两台柴油机颗粒排放中碳烟比重进行了分析,并研究了稀释空气温度和稀释比对不同碳烟比重的颗粒排放测量结果的影响。试验证明,颗粒测量结果随着稀释空气温度的降低、稀释比的增加而变大;颗粒排放中碳烟比例越小,称重测量结果越容易受到稀释比和稀释空气温度的影响。

This paper analyzed the proportion of the soot in the particulate matter of two different diesel engines, and researched the influence of the dilution air temperature and dilution ratio on the results of the particulate matter with different soot proportion. With the results, we found out that under higher dilution ratio and lower dilution air temperature, the measurement results would be higher. The influence of the status of dilution tunnel would be larger to the measurement results of particulate matter exhaust with lower proportion of soot.