The Open Petroleum Engineering Journal

2012, 5 : 58-62
Published online 2012 June 29. DOI: 10.2174/1874834101205010058
Publisher ID: TOPEJ-5-58

Rapid Measurement of Diesel Engine Oil Quality By Near Infrared Spectroscopy (NIRS)

Xing Zhi-Na , Wang Jiu-Xiang and Qu Jun
NO.188 ErMaLu, Zhifu district, Yantai, 264001, Shandong, China.

ABSTRACT

A near infrared spectroscopy (NIRS) rapid measurement was applied to diesel engine oil quality. 100°c kinematic viscosity change rate and flash point of CD 15W lubricant were built by the means of interval and combination partial least (icPLS). The calibration correlation coefficient (R2 validation) and least prediction standard error (SEP) of these models were 0.8954, 2.24% and 0.7729, 2°C respectively. A t-test (α=0.05) showed that the NIR model had an accuracy equivalent to that of the standard method in the analysis for both 100°c kinematic viscosity and flash point. It was indicated that NIRS method was a new analysis means, which could take place of traditional method, for rapid measurement of diesel engine oil quality.

Keywords:

Near infrared spectroscopy (NIRS), diesel engine oil, 100°C kinematic viscosity change rate, flash point, rapid measure.