Evaluation of chemical effects on fuel assembly blockage following a loss of coolant accident in nuclear power plants
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DOI: 10.1002/er.5299
Abstract: After a loss of coolant accident (LOCA) in a pressurized water reactor (PWR), the chemical environment inside containment is complex; there is a potential trend for some materials to be corroded by high‐temperature alkaline water.… read more here.
Keywords: chemical effects; loss coolant; loss; fuel assembly ... See more keywords
Impact vibrations of guide thimbles in nuclear fuel assembly
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DOI: 10.1007/s00419-016-1189-6
Abstract: In nuclear fuel assemblies of pressurized water reactors, guide thimbles (GTs) secure a safe control rod drop. The control rod fall into the GT should be as fast as possible to provide prompt reactor shutdown.… read more here.
Keywords: fuel assembly; impact; nuclear fuel; fuel ... See more keywords
Comparison of BWR fuel assembly options for minor actinide recycling
Sign Up to like & getrecommendations! Published in 2019 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2019.04.046
Abstract: Abstract Nuclear energy production generates Minor Actinide (MA) and Plutonium (Pu) isotopes, being these ones the main reason for the longtime storage of the depleted fuel assemblies. A reduction of these produced isotopes will decrease… read more here.
Keywords: fuel; fuel assembly; fuel assemblies; bwr fuel ... See more keywords
Coupled Monte Carlo-CFD analysis of heat transfer phenomena in a supercritical water reactor fuel assembly
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2020.107312
Abstract: Abstract In this paper coupled calculations with the CFD code ANSYS-CFX-19.0 and the Monte Carlo neutronics code MCNP6 were performed to analyze the heat transfer in supercritical water flowing through the typical fuel assembly of… read more here.
Keywords: fuel assembly; fuel; supercritical water; heat transfer ... See more keywords
Modeling and validation of RELAP5 for natural circulation flow in a single PWR fuel assembly
Sign Up to like & getrecommendations! Published in 2021 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2020.107940
Abstract: Abstract The natural circulation loops have been widely used in the design of next generation nuclear reactors and spent fuel storage facilities. However, the friction correlations for fuel bundle and grid spacers in RELAP5 code… read more here.
Keywords: fuel assembly; fuel; circulation flow; natural circulation ... See more keywords
Neutronic analysis of VVER-1000 MOX fuel assembly with burnable absorber Gadolinia and Erbia
Sign Up to like & getrecommendations! Published in 2021 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2021.108389
Abstract: Abstract This paper represents the neutronic characteristics and feasibility of using Gadolinia and Erbia in integral burnable absorber (IBA) rods for the proposed MOX fuel assembly of VVER-1000 reactor by Nuclear Energy Agency (NEA). For… read more here.
Keywords: mox; gd2o3; fuel assembly; mox fuel ... See more keywords
Experimental research of geometrical parameters influencing factor on fuel assembly mixing characteristics
Sign Up to like & getrecommendations! Published in 2021 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2021.108634
Abstract: Abstract The thermal diffusion coefficient (TDC) is a dimensionless characteristic parameter to reflect the overall mixing characteristics in bundle channels. The effects of bundle geometries and spacer grids axial arrangement on TDC have not been… read more here.
Keywords: tdc; fuel assembly; fuel; experimental research ... See more keywords
Analytical assessment of VVER-1000 fuel assembly deformation in loss of coolant accident
Sign Up to like & getrecommendations! Published in 2022 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2021.108658
Abstract: Abstract In an effort to evaluate the mechanical stability of fuel assembly (FA), this paper focuses on the FA bowing in the loss of coolant (LOCA) accident. To reach this aim, by calculating the axial… read more here.
Keywords: fuel assembly; loca accident; accident; vver 1000 ... See more keywords
Drop behaviors of a plate-type fuel assembly used in research reactor for a drop accident
Sign Up to like & getrecommendations! Published in 2019 at "Progress in Nuclear Energy"
DOI: 10.1016/j.pnucene.2019.01.020
Abstract: Abstract The drop behaviors of a plate-type fuel assembly for a research reactor are investigated through a dropping test in water. In the test, a full-scale dummy fuel assembly and a water tank of 5 m… read more here.
Keywords: type fuel; plate type; fuel assembly; drop ... See more keywords
Coupled Monte Carlo-burnup and CFD analysis of coated UN and UC fuels in an HPLWR fuel assembly
Sign Up to like & getrecommendations! Published in 2020 at "Progress in Nuclear Energy"
DOI: 10.1016/j.pnucene.2020.103342
Abstract: Abstract Ceramic nuclear fuels may have potential benefits to be considered as nuclear fuels in future Supercritical Water Reactors (SCWR), they offer the advantage of high thermal conductivity and high-density values compared to uranium dioxide.… read more here.
Keywords: fuel assembly; analysis; monte carlo; burnup ... See more keywords
A simple treatment of increased gap due to fuel assembly bowing through correction of cross sections
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Nuclear Science and Technology"
DOI: 10.1080/00223131.2019.1598509
Abstract: ABSTRACT Increased fuel assembly gap due to bowing in commercial light-water reactors (LWRs) has an impact on local pin-power distribution due to increased local moderation. In order to consider the effect of increased assembly gap… read more here.
Keywords: gap; fuel assembly; correction; cross ... See more keywords