Managing Varnish of Turbine Oil

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Abstract:

Varnish now becomes the severe problem of gas turbine, nuclear power plant and other industry which use lubricant oil and hydraulic fluid. The cause of varnish formation is heat, oxidation and contamination. Varnish can cause many turbine problems. The Membrane Patch Colorimetry (MPC) test can be used to measure varnish. Partial or all oil change, Filtration with Cellulose Media and System Chemical Cleaning can be applied to mitigate varnish.

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341-344

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November 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Bryan Johnson: Best Strategies for Managing Varnish, Palo Verde Nuclear Generating Station Machinery Lubrication (4/2013), p.1.

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[2] Buddy Atherton: Discovering the Root Cause of Varnish Formation, Practicing Oil Analysis, March-April 2007, p.22.

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[3] Rethinking Condition Monitoring Strategies for Today's Turbine Oils, Machinery Lubrication, May-June 2010, p.5.

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