OPTIMIZATION METHOD FOR RHEOLOGICAL MEASUREMENTS APPLIED TO A MULTIGRADE OIL

Abstract

The usage of various modern devices and of many types of oils in different industry applications became a challenge for researches to find appropriate methodology for a better description and evaluation of oils rheological behavior. The paper presents an optimization method for measuring the rheological properties for a multigrade oil, using with different cones geometries on a Brookfield viscometer. The analyzed rheological parameters are: soak time, number of points acquired during the measurements, maintenance duration at a speed level and influence of the temperature on the measurements. The proposed optimization method has the effect of decreasing the determination time of the rheological properties, without affecting the precision of the measurements, and implicitly reducing experimentation costs.