Hyper-fidelity depletion with discrete motion for pebble bed reactors [PDF]
Scientific Reports, 2023 Hyper-fidelity (HxF) depletion of pebble bed reactors (PBRs) is the capability to model depletion for every pebble while accounting for motion through the core.
Yves Robert +2 more
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Energies, 2021 In the tritium breeding blanket of nuclear fusion reactors, the heat transfer behavior and thermal-mechanical response of the tritium breeder pebble bed are affected by the inner packing structure, which is crucial for the design and optimization of a ...
Baoping Gong +5 more
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Sleep disturbance as a transdiagnostic marker of children's mental health difficulties: A network analysis of item-level associations between different types of sleep problems and different behavioural and emotional symptoms. [PDF]
JCPP AdvAbstract Background Sleep disturbances are widely considered to be a transdiagnostic feature of common behavioural and emotional difficulties in childhood, yet most studies treat sleep as a single construct. Where studies have explored specific sleep problems to psychopathology in children, these tend to only include behavioural or emotional ...
Marinca AA +4 more
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Investigation on the mechanism of enhancing heat transfer in a pebble bed by adding in the non-fixed number of smaller-sized spheres [PDF]
E3S Web of Conferences, 2021 Enhancing heat transfer in the pebble bed reactor could reduce the surface temperatures and lower the possibility of forming hot-spots. The effectiveness of inserting a smaller sphere into a structured pebble bed on optimizing the heat transfer has been ...
Chen Leisheng +3 more
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Effect of packing structure on anisotropic effective thermal conductivity of thin ceramic pebble bed
Nuclear Engineering and Technology, 2021 Helium cooled solid breeder blanket as an important blanket candidate of the Tokamak fusion reactor uses ceramic pebble bed for tritium breeding. Considering the poor effective thermal conductivity of the ceramic breeder pebble bed, thin structure of ...
Shuang Wang +5 more
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Study on kinetic parameters of pebble bed reactor with TRISO duplex fuel [PDF]
Nuclear Technology and Radiation Protection, 2023 Thorium, in this case, 232Th has a higher thermal neutron capture cross-section than 238U, which means that more fertile isotopes can be transmuted and could lead to higher fissile isotope 233U.
Zuhair +4 more
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Effects of 3D contraction on pebble flow uniformity and stagnation in pebble beds
Nuclear Engineering and Technology, 2021 Pebble flow characteristics can be significantly affected by the configuration of pebble bed, especially for HTGR pebble beds. How to achieve a desired uniform flow pattern without stagnation is the top priority for reactor design.
Mengqi Wu +4 more
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Investigation of heat generation in a pebble bed during induction heating [PDF]
E3S Web of Conferences, 2023 The use of fuel in the form of microfuel filling in nuclear reactors is a possible way to improve the safety and efficiency of nuclear power plants. In experimental studies, microfuel elements are simulated by stainless steel balls, and internal heat ...
Vershinina Yuliya V., Dedov Aleksey V.
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Energies, 2022 Quantifying fission product yield uncertainty contribution to reactor burnup calculation is an important aspect of pebble-bed High Temperature Gas-cooled Reactor (pebble-bed HTGR) uncertainty analysis.
Menglei Cui +4 more
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Nuclear Engineering and Technology, 2023 In the two-step analysis of Pebble-Bed type High-Temperature Gas-Cooled Reactor (PB-HTGR), the lattice physics calculation for the generation of homogenized cross-sections is based on the fuel pebble. However, the randomly-dispersed fuel particles in the
Shuai Qin +6 more
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