Nicol - AUSC WEBINAR 高效超超临界技术.pdf

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1、Webinar9thOctober2013StatusofadvancedultrasupercriticalpulverisedcoaltechnologyKyleNicol1ContentsPART1IntroductionSteamandefficiencyHightemperaturecomponents:manufacture,serviceandmicrostructurePART2MaterialresearchprogrammesCollaborationAtypicalmateria

2、lresearchprogrammeProgrammesinEU,USA,Japan,China,IndiaandRussiaPART3ConclusionsResearchspin-offtechnologiesComparisonInternationalcollaboration?ToAUSCandbeyondFinalremarks2SteamandefficiencySuperheaterCoalEfficiencytemperatureconsumption(LHV,net,andpr

3、essure(gCOAL/kWh)hardcoal)≤540°CandSubcritical≥380<35%<22.1MPa540-580°CSupercriticaland22.1-25380-34035-40%(SC)MPaUltra580-620°CSupercriticaland22-25340-32040-47%(USC)MPaAdvanced700-725°CUltraand25-35320-29047-52%Supercritical(AUSC)MPa3SteamandefficiencySup

4、erheaterCoalEfficiencyMaterialinhightemperatureconsumption(LHV,net,temperatureandpressure(gCOAL/kWh)hardcoal)components≤540°CandLowalloyCMnandMoSubcritical≥380<35%<22.1MPaferriticsteels540-580°CLowalloyCrMosteelsSupercriticaland22.1-25380-34035-40%and9–12%C

5、r(SC)MPamartensiticsteelUltra580-620°CImproved9–12%CrSupercriticaland22-25340-32040-47%martensiticsteels(USC)MPaandausteniticsteelsAdvanced700-725°CNickelalloysUltraand25-35320-29047-52%andadvanced10-12%Supercritical(AUSC)MPaCrsteels4Hightemperaturecomponen

6、ts:LotsofthemSteamturbine:blades,rotors,casingHeadersandpipeworkSuperheaterandreheatersValves:bypass,control,safety5Hightemperaturecomponents:ManufactureBlastfurnacesFabrication:extrusion,cast,forge…Welding:GMAW,SAW,MachiningHeattreatmentGTAW/TIG,SMAW…6High

7、temperaturecomponents:ServiceSteamcycle=steamsideoxidation&erosionBoiler=firesidecorrosion&erosionConstantstress=creepdamageCyclicstress=fatiguedamage7Hightemperaturecomponents:ServiceSuperheatertubes=steamsideoxidation+firesidecorrosion+constantstress+eros

8、ion(+cyclicstress)Steamturbinecasing=steamsideoxidation+erosion+constantstress8Hightemperaturecomponents:MicrostructureMicrostructuredeterminespropertiesMicrostructuredependsoncomplexmanufacturingpro