IMPROVING THERMAL PROPERTIES OF OIL LUBRICANT USED IN PARTIAL JOURNAL BEARINGS OF ROTARY KILN FOR KUFA CEMENT PLANT BY ADDING GRAPHITE GREASE

Haleem K. Madfoon; Mehdi Sedighi; Abbas Diwan

doi:10.30572/2018/KJE/170101

Authors

Mr. Haleem K. Madfoon The General Company for Iraqi Cement, Southern Cement Company, Najaf, Iraq
Dr. Mehdi Sedighi Department of Chemical Engineering, University of Qom, Qom, Iran
Abbas Diwan Nanotechnology and Advanced Materials Research Unit (NAMRU), Faculty of Engineering, University of Kufa, Iraq https://orcid.org/0000-0002-6431-0417

DOI:

https://doi.org/10.30572/2018/KJE/170101

Keywords:

Graphite Grease, Thermal Conductivity, Viscosity, Oil

Abstract

Bearings generally suffer from high temperatures under loads, which leads to heat transfer problems between shaft and journal bearing. in this paper graphite grease mixed with oil used in journal bearing in three weight fractions 15%, 20% and 25%. physical properties such as thermal conductivity, viscosity and density would be measured. in cement plants, the effect adding graphite grease to the oil on temperatures of tier, roller, oil, shaft inlet and shaft exit would be measured. Also, SEM images of three concentrations of graphite grease in oil would be investigated.

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