简介：Passingonemonthcontinuoustrialoperation,the500kVHVDCtransmissionprojectfromTianshengqiaoHydropowerStationtoGuangzhouwascommissionedonDecember26,2000.ThisindicatesathirdbulkpowerchannelfromwesttoeastandthefirsthybridsystemofHVDCandHVACparalleloperationinChina

简介：Thispaperpresentsanexperimentalstudyresultofflowfieldofadual-channelburner.Inordertosolvetheubiquitousproblemofbadrigidityofjetsindual-channelburners,wedgeswithdifferentarrangementsandstructuralparameterswereaddedtodifferentpositionsattheoutletoftheburners.LaserParticleImageVelocimetry(PIV)wasusedinthisstudytomeasuretheflowfieldtoinvestigateinfluenceofthewedgesonflowfieldofthedual-channelburner.Experimentalstudyshowsthatfixingwedgesatbothrightandleftsidesoftheburner'soutletcanincreasetheintensityofrecirculationwithoutchangingthesizeoftherecirculationzoneandenhancetherigidityofjetsviaincreasingspeedofthetwoprimaryairjetsattheoutlet.