Effect of Aromatics on Concentration and Nanostructure of Particulate Matter from Gasoline Direct Injection Engine

张超; 夏淳; 方俊华; 谢晓敏; 黄震

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Effect of Aromatics on Concentration and Nanostructure of Particulate Matter from Gasoline Direct Injection Engine

更新时间：2026-04-16

- Effect of Aromatics on Concentration and Nanostructure of Particulate Matter from Gasoline Direct Injection Engine
- Vol. 39, Issue 1, Pages: 8-14(2018)
- 作者机构：
  
  上海交通大学动力机械与工程教育部重点实验室,上海,200240
- 作者简介：
- 基金信息：
- DOI：
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- Published：2018
- 稿件说明：
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张超，夏淳，方俊华，谢晓敏，黄震.汽油芳香烃含量对颗粒物排放及其微观理化特性的影响[J].内燃机工程,2018,39(1):8-14.

张超, 夏淳, 方俊华, et al. Effect of Aromatics on Concentration and Nanostructure of Particulate Matter from Gasoline Direct Injection Engine[J]. 2018, 39(1): 8-14.
张超，夏淳，方俊华，谢晓敏，黄震.汽油芳香烃含量对颗粒物排放及其微观理化特性的影响[J].内燃机工程,2018,39(1):8-14. DOI：

张超, 夏淳, 方俊华, et al. Effect of Aromatics on Concentration and Nanostructure of Particulate Matter from Gasoline Direct Injection Engine[J]. 2018, 39(1): 8-14. DOI：

摘要

基于国Ⅴ标准汽油，通过添加均三甲苯改变汽油中芳香烃的含量，在一台缸内直喷（GDI）汽油机台架上研究了汽油芳香烃含量对于GDI颗粒物（PM）排放及其微观理化特性的影响。研究结果表明：GDI PM排放随负荷增加而增加，在中低转速范围内随转速增加而降低；在高负荷下，芳香烃含量的增加会显著增加PM的排放并降低PM的氧化活性；芳香烃含量的增加促使PM前驱物增加，同时使碳层结构石墨化程度更高，阻止PM的二次氧化，从而增加了PM的排放。

Abstract

Particulate matter(PM) emissions and soot nanostructure were studied on a gasoline direct injection engine withmesitylene blended fuels based on China Ⅴ standard gasoline. The results indicate that PM emissions increase with load and decrease with the increase of speed over low and medium speeds. A higher proportion of aromatics will lead to higher PM emissions and lower oxidation of soot at high load. A higher proportion of aromatics will lead to more precursor and higher graphitic lamellae of soot

preventing PM from secondary oxidation

thus reducing PM emissions.

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