کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7002167 1454787 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Discriminating gasoline fuel contamination in engine oil by terahertz time-domain spectroscopy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Discriminating gasoline fuel contamination in engine oil by terahertz time-domain spectroscopy
چکیده انگلیسی
Gasoline engine oil (SAE 5W20) was contaminated with four levels (0%, 4%, 8% and 12%) of gasoline fuel and submitted to terahertz time-domain spectroscopy (THz-TDS). Three sampling methods were used to compare measurement variations. For all sampling methods, refractive index decreased with increased fuel contamination and absorption coefficient increased with increased fuel contamination. Absorption coefficients were significantly different for each fuel contamination level for each sampling method across the entire 0.5-2.5 THz range. The frequency of 0.5 THz produced the best model of absorption coefficient predicting fuel contamination with a root-mean-square error of 0.21% points. THz-TDS demonstrated high potential for estimating gasoline fuel contamination in gasoline engine oil.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 119, March 2018, Pages 123-130
نویسندگان
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