BENEFITS OF USING COLORIMETRIC PATCH ANALYZERS FOR INVESTIGATING TURBINE OIL CONTAMINATION
There are many independent power suppliers who use combined cycle power generation. They have risks of paying a large amount of penalty, when their turbines suddenly stop. Therefore knowing varnish formation at early stage is very important for them. University of Fukui has developed a state-of-the-art colorimetric patch analyzer (CPA), which measure colors of contaminants by both reflecting light and transmitting lights, although conventional colorimetric analyzers use reflecting light only. Authors have checked contaminants of turbine oils using CPA and found that oil oxidation can be detected at early stage by using both reflecting light and transmitting light. This report will explain how the transmitting light is effective to detect precursors of polmerized oil oxidation products at early stage.