文档介绍：Compressors(C)C_6:,DPhil,FIMechE,CEng,pressorsbasedonlecturesgivenbytheauthorintheUniversityofStuttgartMichaelCaseyVersion:::::::::::pressorperformancecharacteristicsMichaelCaseyVersion:•pressors–pressors•Allopenimpellers(noshroud)appearverysimilar(atfirstsight)–Back-sweepatoutletof-30to-50°–Inletbladeanglesattipof–60°–Splittervanes–everysecondbladecutbackattheinlet–•–ivenoverallsizeduetosmallerinletarea–plexflowpassages)–Higherworkandpressureratioforsamerotationalspeed(centrifugaleffect)•Asingleradialstagecantypicallyreplace3axialstages–Centrifugalshaveflatterspeed-lineperformancecurvesthanaxialsMichaelCaseyVersion:?Theflowexperiencesamarkedradiuschangeasitpassesthroughtherotor•Axial•RadialCentrifugals•Diagonal•MixedMichaelCaseyVersion:?•pressorapplications–Turbochargers–Gasturbines•APU’sandsmallandmicrosizedgasturbine•Largergasturbines–Laststageofaxial-pressor•pressorsforindustrialgases–gastransportinpipelines–air-liquefactionplants–largerefrigerationplant–Centrifugalfansforairconditioning–Blowers•processgases•miningventilationMichaelCaseyVersion:(ABB)pressor(MANTurbo)pressor(MANTurbo)Ventilatorfan(EBMPapst)MichaelCaseyVersion:,(vanedorvaneless)(inducer)Impellerblade2Impellerexit/diffuserinletSource:AtlasCopcoHubsurfaceRotatingInletguideimpellervanes(optional)(rotor)0IGVInlet1ImpellerInletMichaelCaseyVersion:press