Title of article :
Nuclearpoweredheatpumpsfornear-termprocessheatapplicationsOriginalResearchArticle
Author/Authors :
A.Marmier، نويسنده , , M.A.Fütterer، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Thereisasubstantialmarketfornuclearenergyinnon-electricapplicationssuchashydrogenproductionorwaterdesalination.AmongtheGenerationIVreactorconcepts,theveryhightemperaturereactor(VHTR)withareactoroutlettemperaturecloseto1000°Candapowerconversionefficiencyofapproximately50%isbelievedtobethemostsuitableconceptforco-generationofprocessheat.Itshighcoolantexergywouldenablecentralizedhydrogenproductionandotherprocessheatapplications.Inthispaperitisshownthatareactorwithlowercoolantoutlettemperatureoranothernear-termheatsourcecanalsomeettheVHTRobjectiveswhicharehighpowerconversionefficiencyandcapabilitytodeliverhightemperatureprocessheatinthenarrowtemperaturewindowrequiredbythermochemicalhydrogenproductioncycles.Theapproachwastoseparatetherequirementforhightemperatureprocessheatproductionfromthenuclearpartoftheplant,inotherwordsthenuclearpartofthepowerplantwouldrunatacceptablylowtemperaturewhilethehightemperatureheatproductionviaaheatpumpsystemwouldbelimitedtoaconventionalexternalcircuit,thusavoidingnuclearconstraints.TheseparationofthesehightemperatureconstraintsfromthereactorwouldavoidmassiveR&Drequirementsonmaterials,componentsandfuelwithuncertainoutcomethusunnecessarilydelayingintroductionofthisotherwiseveryattractivereactorconcept.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
