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本文通过对柴油机微粒排放浓度和波许烟度值进行分析，研究了微粒中碳粒浓度和波许烟度值的关系，并对经验公式进行了修正；分析了微粒中碳粒百分比含量与发动机负荷的关系。提出了用波许烟度值估算柴油机微粒排放浓度的方法。结果表明：波许烟度值和碳粒质量浓度之间能建立较好的数学关系，微粒中碳粒百分比含量随负荷的增加而增大，并与波许烟度值的变化趋势一致，通过测定的柴油机排气烟度值可以粗略估算微粒排放的质量浓度。
In this paper, the relationship between the concentration of carbon particles in the particles and the value of wave smoke is studied through the analysis of the emission concentration of particulate matter and the value of smoke in diesel engine, and the empirical formula is corrected. The relationship between the percentage of carbon particles in the particles and the engine The relationship between the load. A method of estimating the emission concentration of diesel particulates by using the smoke number of smoke is proposed. The results show that there is a good mathematical relation between the smoke degree of smoke and the mass concentration of carbon particles. The percentage of carbon particles in the particles increases with the increase of load, The measured diesel exhaust smoke values provide a rough estimate of the mass concentration of particulate emissions.