کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6475577 1424974 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact of lubricating oil combustion on nanostructure, composition and graphitization of diesel particles
ترجمه فارسی عنوان
اثر احتراق روغن های روان کننده بر ساختار نانوساختار، ترکیب و گرافیتیزاسیون ذرات دیزلی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- Physical characters and compositions were analyzed for oil-derived particles.
- Oil-derived particles have more unburnt organic fractions and amorphous carbons.
- Oil combustion reduces the graphitization degree of diesel particles.
- The low volatility fraction is the most sensitive fraction to oil combustion.

In this study, the impact of lubricating oil on the nanostructure, composition, and graphitization of diesel particles is studied experimentally. A 4-cylinder turbocharged light-duty diesel engine was used to generate particle samples. In the analysis, high resolution transmission electron microscopy (HRTEM) and thermogravimetric analysis (TGA) were applied to study the nanostructure and the compositions of particles, respectively. Furthermore, Raman spectroscopy was used to compare the graphitization of particles. Quantitative analysis of HRTEM images suggests that lube oil-derived particles have more disordered structures with shorter fringe length, larger degree of tortuosity, and greater separation distance than diesel particles. TGA results indicate that lubricating oil leads to more low volatility volatile fraction in PMs, particularly at the low load conditions. From Raman spectrum, it has been found that there are more defective band appeared in lube oil-derived particles. This implies that the lube oil-derived particles have a lower degree of graphitization. Overall, this study shows that lubricating oil has a significant impact on the characteristics of particles.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 190, 15 February 2017, Pages 237-244
نویسندگان
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