Phosphate Ester Varnishing
Unique aspects, testing and maintenance
→Unique aspects, testing and maintenance
→The Soluble-Insoluble Varnish Equilibrium
→Restoration of Steam Turbine Oil Demulsibility
→What Routine EHC Fluid Analysis Fails to Detect: Improved Phosphate Ester Maintenance through Non-routine Testing
→A Paradigm Shift in Gas Turbine Lubricant Maintenance
→Matthew G. Hobbs, PhD, Peter T. Dufresne Jr. Paper Abstract Despite the critical nature of electrohydraulic control (EHC) systems, many steam turbine operators’ oil analysis programs fail to detect fine insoluble contaminants that
→Peter T. Dufresne Jr., Matthew G. Hobbs, PhD Paper Abstract While gas turbine oil maintenance is recognized as being essential, many programs lack the basic tools to maintain their lubricants within specification. Existing
→Matthew G. Hobbs, PhD, Peter T. Dufresne Jr. Paper Abstract Steam turbines are responsible for up to 80% of global electricity production. Because steam powers these units, ingression of water into steam turbine
→Matthew G. Hobbs, PhD, Peter T. Dufresne Jr. Paper Abstract Turbine lubricants employ a variety of base fluids. Mineral oil-derived base stocks remain the most prevalent, however, synthetics are becoming increasingly common. These
→Paper Abstract Varnish is produced by breakdown of hydrocarbon lubricants. Its deleterious impact on equipment performance and reliability is well-documented. Varnish has traditionally been defined as an insoluble deposit, however, it also exists
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