An assessment of thorium and spent LWR-fuel utilization potential in CANDU reactors

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dc.contributor.authorŞahin, Sümer
dc.contributor.authorŞahin, Hacı Mehmet
dc.contributor.authorAlkan, Mahmut
dc.contributor.authorYıldız, Kadir
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-16T08:24:49Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-16T08:24:49Z
dc.date.issued2004
dc.departmentMühendislik Fakültesi
dc.description.abstractA neutronic analysis has been performed to assess a prospective utilization of light water reactor (LWR) spent fuel in Canada deuterium uranium (CANDU) reactors mixed with thoria (ThO2). The study is conducted for mixture grades with 50%, 60% and 100% LWR spent fuel and 50%, 40% and 0% thoria, respectively. Burn-up grades are evaluated for alternative fuels to reach a bundle criticality of k? = 1.06, which are calculated as ~28,000, ~14,000, ~8000 and 8800 MWd/MT with 100%, 60% and 50% LWR spent fuel content and for natural uranium fuelled CANDU after plant operation periods of 690, 340, 200 and 205 days, respectively. The presence of even plutonium isotopes with higher neutron absorption cross sections in the LWR spent fuel obliges starting with a higher cumulative fissile inventory in the initial charge compared to natural uranium fuel. Extended utilization of worldwide disposed spent nuclear LWR fuel in CANDU reactors in a symbiotic system opens prospects with respect to environmental concerns as well as to energy economics. After separation of the fission products, further utilization of the actinides in nuclear waste becomes possible as a valuable nuclear fuel. © 2003 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipThis work has been supported by the Research Fund of the Gazi University, Project # 07/2001-15 and 2003-14.
dc.identifier.doi10.1016/j.enconman.2003.08.002
dc.identifier.endpage1085en_US
dc.identifier.issn0196-8904
dc.identifier.issue07.Augen_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage1067en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.enconman.2003.08.002
dc.identifier.urihttps://hdl.handle.net/20.500.12451/2972
dc.identifier.volume45en_US
dc.indekslendigikaynakScopus
dc.language.isoen
dc.relation.ispartofEnergy Conversion and Management
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCANDU Reactors
dc.subjectExtended Burn-up
dc.subjectNuclear Waste Utilization
dc.subjectSpent LWR Fuel
dc.subjectThorium
dc.titleAn assessment of thorium and spent LWR-fuel utilization potential in CANDU reactors
dc.typeArticle

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