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CS26: Online Mitigation of Gearbox Bearing High Temperature due to Oil Varnishing

dc.contributorAsia Turbomachinery & Pump Symposium (2nd : 2021)
dc.creatorSing, Ng Wei
dc.date.accessioned2023-02-23T20:10:29Z
dc.date.available2023-02-23T20:10:29Z
dc.date.issued2021
dc.identifier.urihttps://hdl.handle.net/1969.1/197448
dc.descriptionCase Studies
dc.description.abstractThiscasestudypresentsanincidentofsuddentemperatureincreaseofabearinginaspecialpurposegearboxduringnormaloperationDetailsofthedirectcauseinvestigation,onlinemitigationandlongertermimprovementswillbesharedThecompressortrain(motor,gearboxandcompressor)operatesunderhigherthanusualoiltemperaturebecauseoftheundersizedcoolingsystemOvertheyears,oilvarnishingwasdetectedbutdidnotcausemajorissuestothemachinesduringoperationIn2018,asuddenincreaseinbearingtemperatureofonebearinginthegearboxwasdetectedTheincreasewasgradualoverseveralweeksfrom~80DegCto105DegCTherewasacorrespondingdecreaseinvibrationatthesamebearingInvestigationconcludedthatthelikelycausewasvarnishdepositedonthebearingpads,causingtheclearancetoreducewhichledtoanincreaseintemperatureandreductioninvibrationAnonlinede-varnisherwasinstalledtotheoilreservoir,andwithinaweekofoperation,thebearingtemperatureandthevibrationstartedtoreduceThemachineoperationwassustaineduntilthenextshutdownAspartofthemitigation,aspecialcleaningadditivewasinjectedintotheoilsystempriortoshutdowntocleanthesystemDetailedoilsamplingtests(MPC,RULER)wereintroducedaspartofthelongtermimprovementstrategyAnewtypeofoilwasintroducedwithmuchbettervarnishingresistanceThiscasestudypresentstheproblemsencountered,analysisperformed,recommendations(longandshortterm)implementedandresultsachieved
dc.format.mediumElectronic
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherTurbomachinery Laboratory, Texas A&M Engineering Experiment Station
dc.relation.ispartofAsia Turbomachinery & Pump Symposia. 2021 Proceedings
dc.titleCS26: Online Mitigation of Gearbox Bearing High Temperature due to Oil Varnishing
dc.type.genreconference publication
dc.type.materialText
dc.format.digitalOriginborn digital


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