Results 11 to 20 of about 32,826 (267)

Numerical investigation on transverse flow of helical cruciform fuel rod assembly in a lead-bismuth cooled fast reactor

open access: yesInternational Journal of Advanced Nuclear Reactor Design and Technology, 2023
The helical cruciform fuel (HCF) rod assembly is a new type of fuel for the lead-bismuth (LBE) fast reactor. It can be self-positioned and realize a coolant mixing without wrapped wire or grid spacer.
Yue Zeng, Huandong Chen, Pingjian Ming
doaj   +1 more source

Analysis and optimization of energy release and fuel burnup nonuniformity in the WWER-1000 fuel assembly

open access: yesГлобальная ядерная безопасность, 2023
The paper considers and systematises the options of fuel assemblies (FAs) for the WWER-1000 reactor. In the Serpent neutron-physics code, an infinite-height fuel assembly with six fuel pins is modelled using the U49G6 pattern used in the WWER-1000 «large
A. A. Lapkis   +3 more
doaj   +1 more source

Thermal-fluid-structure coupling analysis on plate-type fuel assembly under irradiation. Part-II Mechanical deformation and thermal-hydraulic characteristics

open access: yesNuclear Engineering and Technology, 2021
The plate-type fuel assembly adopted in nuclear research reactor suffers from complicated effect induced by non-uniform irradiation, which might affect stress conditions, mechanical behaviors and thermal-hydraulic performance of the fuel assembly.
Yuanming Li   +8 more
doaj   +1 more source

Physical Design of High-Performance Fuel Assembly Based on Fully Ceramic Microencapsulated Fuel for Supercritical CO2 Cooled Reactor

open access: yesFrontiers in Energy Research, 2021
Fully ceramic microencapsulated fuel (FCM) is employed in the supercritical CO2 (S-CO2)-cooled reactor as accident tolerant fuel (ATF). Although the fuel and the assembly substrate contain SiC, the assembly cannot be sufficiently moderated due to the ...
Di Lu   +4 more
doaj   +1 more source

Famos III, burn-up measurement system suitable for la Hague acceptance criteria control [PDF]

open access: yesNuclear Technology and Radiation Protection, 2002
Fuel Assembly Monitoring System (FAMOS) was developed to set up a NDA method for the characterization of light water reactor fuel assemblies. The applied active/passive monitoring system made total characterization of fuel assemblies possible, without ...
Simon Gerold G.   +1 more
doaj   +1 more source

Manufacturing Features and Characteristics of Uranium Dioxide Pellets for Subcritical Assembly Fuel Rods

open access: yesEast European Journal of Physics, 2022
The influence of technological processes and manufacturing of uranium dioxide fuel pellets for fuel elements for experimental fuel assembly (FA-X) which was designed as an alternative fuel for the nuclear research installation (NRI) "Neutron Source ...
Igor Chernov   +3 more
doaj   +1 more source

Fluid Damping in Fuel Assemblies

open access: yesVolume 4: Fluid-Structure Interaction, 2017
Damping is known to be a major parameter in the seismic design of nuclear facilities. Of special interest is the case of fuel assemblies in PWR plants, which, unlike other components, are submitted to axial flows: it has been known since the late 80s that their frequency response to lateral excitations was largely dependent on the flow velocity, and ...
Moussou, Pierre   +3 more
openaire   +2 more sources

Enhancing Thermal Conductivity of SiC Matrix Pellets for Accident-Tolerant Fuel via Atomic Layer Deposition of Al2O3 Coating

open access: yesEnergies
This study investigates the enhancement of thermal conductivity in silicon carbide (SiC) matrix pellets for accident-tolerant fuels via atomic layer deposition (ALD) of alumina (Al2O3) coatings. Pressure-holding ALD protocols ensured precursor saturation,
Yumeng Zhao   +7 more
doaj   +1 more source

Research on Preparation Process by Spark Plasma Sintering and Performance Characterization of UN-U3Si2 Composite Pellet

open access: yesYuanzineng kexue jishu
After the Fukushima nuclear accident in 2011, the international community has put forward higher requirements for the safety and reliability of new generation nuclear power plants and nuclear fuels.
SUN Qiming1, 2, JI Pengbo1, 2, WANG Jijun1, 2, CAO Junwen1, 2, LI Yu1, 2, LI Zongshu1, 2
doaj   +1 more source

Effect of bi-directional excitation input on boiling water reactor scrammability

open access: yesNihon Kikai Gakkai ronbunshu, 2020
When a large earthquake occurs, a boiling water reactor is automatically shutdown through the insertion of control rods among fuel assemblies. A fuel assembly can vibrate in-plane when two seismic waves act on it in directions at right angles to each ...
Yoshihiro GOTO   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy