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1、PVP20082008PressureVessels&PipingConference“NuclearPowerPlantRenaissance;ChangeinParadigm”July27–31,2008MarriottonMagnificentMileFinalProgramChicago,IllinoisUSAProceedingsofPVP20082008ASMEPressureVesselandPipingConferenceJuly27-31,2008,Chicago,Illinois,USAPVP2008-61121HEATEXCHA
2、NGERGASKETSRADIALSHEARTESTINGJoséC.VeigaDavidReevesNelsonKavanaghChevronRefiningCorporationTeaditIndustriaeComercioLtda.ElSegundo,California8939AvMartinLutherKingU.S.A.RiodeJaneiro,RJ21530-012BrazilABSTRACTprimarilycausedbythematingflangeshavingadifferentamountofmass,whichcause
3、stheflangewithlessmasstoDuetothehighincidenceofleaksinShellandgrowfasterthantheheavierone.ThedifferentialgrowthTubeHeatExchangesthatareinthermalcyclingservice,isalsoaggravatediftheflangesaremadeofdissimilartherehavebeenstudiesofthesuitabilityofgasketstylesmetalalloys.Foragasket
4、tomaintainitssealforitsforthiskindofapplication.Thispaperresearchesseveralintendedservicelife,itmustbeabletoresistthesheargasketstylesinatestrigdevelopedtosimulatetheradialeffectcausedbythisdifferentialgrowth.shearcausedbythedifferentialthermalexpansionoftheTosimulatethiscondit
5、iontheÉcoleflangesinaHeatExchanger.PolytechniqueoftheUniversityofMontreal,CanadadevelopedtheRadialShearTightnessTest[5],knownasINTRODUCTIONRaSTandstudiedseveralgasketsstylesavailableatthetime.However,theRaSTwasdisassembledandsenttoInthelastfewyearstherehavebeenstudiestoEuropean
6、disnolongeravailableforgaskettestinganddeterminethesuitabilityofdifferentgasketstylesfordevelopment.ShellandTubeHeatExchangerservices.ThemajorTotestanddevelopnewgasketstheTeaditTestconcernhasbeenthegasketabilitytotoleratetheRigusedinpreviousstudieswasmodifiedtosimulatethediffer
7、entialthermalgrowthbetweenflanges,anintrinsicradialshearcausedbythedifferentialthermalgrowthofcharacteristicofHeatExchangerswhich,bydesign,arethematingflanges.builttotransferheatbetweenfluidsintheprocessindustry.InourpreviouspapersofDoubleJacketed[1]gasketswestudiedthefinish[2]
8、andthesealability[3]inflangeswithandwithoutnubbins.For
