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Showing 1 to 12 of 12 for “"fuel pins"”.
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Modelling of thermo-mechanical and irradiation behavior of metallic and oxide fuels for sodium fast reactors
… the irradiation behavior of metal and oxide fuels in sodium cooled fast reactors is developed. Modeling capability was enhanced by adopting a non-empirical mechanistic approach to the extent possible, so that to increase the ability to extrapolate the existing database with a reasonable …
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Fertile free fuels for plutonium and minor actinides burning in LWRs
The feasibility of using various uranium-free fuels for plutonium incineration in present light water reactors is investigated. Two major categories of inert matrix fuels are studied: composite ceramic fuel particles dispersed in another ceramic matrix (CERCER) and ceramic fuel particles dispersed …
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Consideration of fuel behaviour in AGR-like FHR reactor design
… of Molten Salt Reactor (MSR) that uses solid fuel separated from the molten coolant salt. Previous work showed that British Advance Gas-cooled Reactor (AGR) technology can be used to potentially reduce the time required to develop FHRs. Using such proven technology ensures that much of the …
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Assessment of Dancoff adjusted Wigner-Seitz cells for self-shielding LWR lattices
… reaction rates for DAWSC cases in the inner fuel pins of the bundle; however the results were the opposite for fuel pins on the outer edges of the bundle. These results showed that the DAWSC method failed to account for irregularities in the bundle for the Dancoff corrections that were …
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Development of a 37-element fuel bundle for the production of molybdenum-99 in CANDU power reactors.
… Five different modifications of a 37-element fuel bundle that could be used for the production of Mo-99 in existing CANDU type power reactors are explored. Since Mo-99 is generated by the fission of U-235 with a fission yield of 6.1%, the proposed designs use enriched uranium in the Mo-99 …
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Thermal hydraulic design of a salt-cooled highly efficient environmentally friendly reactor
… spectrum reactor was designed with a long fuel cycle, and high core exit temperature. These features are desirable in a reactor designed to provide process heat applications such as oil refinery needs of heat and electricity. The reactor uses the binary salt NaF-BeF₂ as the primary coolant, …
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Actinide minimization using pressurized water reactors
… dominate the long-term radiotoxity in spent LWR fuel. In an open fuel cycle, they impose a long-term burden on geologic repositories. Transmuting these materials in reactor systems is one way to ease the long-term burden on the repository. Examining the maximum possible burning of trans-uranic …
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An evolutionary fuel assembly design for high power density BWRs
An evolutionary BWR fuel assembly design was studied as a means to increase the power density of current and future BWR cores. The new assembly concept is based on replacing four traditional assemblies and large water gap regions with a single large assembly. The traditional BWR cylindrical …
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Reactor agnostic multi-group cross section generation for fine-mesh deterministic neutron transport simulations
… of a reactor geometry to determine which fuel pins should be assigned the same MGXS. The inferential MGXS (iMGXS) scheme applies unsupervised machine learning algorithms to "noisy" MC tally data to identify clustering of pin-wise MGXS without any knowledge of the reactor geometry. Both …
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Achievable power uprates in pressurized water reactors using uranium nitride fuel
… investigating the potential benefits of nitride fuel use in pressurized water reactors. The AP1000 is chosen as the reference power plant. Both oxide and nitride fuel are considered and compared using a steady state thermal hydraulics and mechanics parametric optimization study to achieve a …
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A study of solute transport of radiolysis products in crud and its effects on crud growth on PWR fuel pin
… the behavior of the porous crud growth on PWR fuel pins. This model employs a system of coupled mass transport and chemical interactions as the source term, which make the problem non-linear. A Monte Carlo technique is adopted to simulate the behavior of the different species. The direct …
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Studey of a Water Radiolysis Effects on Transport of Solute and Related Chemical Reactions in Porous Crud
Made available in DSpace on 2017-07-06T18:48:51Z (GMT). No. of bitstreams: 3 Joe_Hyun-Jong_MS.pdf: 44574003 bytes, checksum: 7ccfa9d0a0232c245e192c895460b3ea (MD5) Joe_Hyun-Jong_MS_ABS.pdf: 655865 bytes, checksum: 0db64d945e24b8a555cba499bef50a70 (MD5) license.txt: 4813 bytes, checksum: …