BasicconceptofanearfutureBWROriginalResearchArticle

Thispapershowsabasicconceptofanearfutureboilingwaterreactor(BWR)aimingatevolutionalsafetyandcostsavingswithminimumchangefromthecurrentadvancedBWR(ABWR).Theplantoutputisupratedto1500MWefrom1356MWe.Thispowerupratecanbringaboutpotentialof11%costsavingperMWebase.Safetyimprovementasanextgenerationlargereactorisalsoachieved. Theadvancedreinforcedconcretecontainmentvessel(ARCCV)isusedforthecontainmentvesseltoimprovesafetyforsevereaccidents.Thepeakpressureofthecontainmentatsevereaccidentscanbekeptclosetothedesignpressure.Theadvancedpassivecontainmentcoolingsystem(APCS)isalsoprovidedandcanaccomplishnoprimarycontainmentvessel(PCV)venting. Theadvancedemergencycorecoolingsystem(AECCS)consistsoffourdivisionsinthefrontline.Theadvancedpassivecoolingsystem(APCS)isalsoprovided.Thecombinationofthefourdivisionalemergencycorecoolingsystem(ECCS)andthepassivesafetysystemimprovestheplantperformanceinprobabilisticsafetyassessment(PSA). ThisplantconceptisdesignedbasedontheheritageofthecurrentABWR.Nomoremajorresearchanddevelopment(R&D)arenecessary.Therefore,constructionandoperationispossibleintheearly2010s.