KEYWORDS

Contamination, Gas Turbine Oils, Oxidative Degradation, Colorimetric Analysis

FIELD INVESTIGATION OF TURBINE OIL OXIDATION PRODUCTS

When warm oils are filtered through membrane filters, the membrane filters look clean. When the same oils are filtered through membrane filters after being cooled to the room temperature for a few days, the membrane patches are colored with oil oxidation products. The phenomena are confusing. However, the most important thing for oil management is whether such oil oxidation products form varnish to the surfaces of machine components of the systems. Unfortunately, there is no report on the investigation about the oil contamination and the tank internals in the past to our limited knowledge. The authors examined contaminants of turbine oils of a combined cycle power plant continuously from 2010 to 2014 and also investigated the internal conditions of a gas turbine oil tank in 2012.

AUTHORS

Akira Sasaki, Maintek Consultant, Yokohama-Shi, Japan, C.K. Yong, Focus Machinery Pte. Ltd., Singapore, Singapore and Tomomi Honda, University of Fukui, Fukui, Japan