Annular fuel for VVER-1000 reactor: Moderation impact on neutronic behavior

Ahmed, Md Tanvir; Shelley, Afroza

doi:10.1016/j.pnucene.2023.104907

Progress in Nuclear Energy

2023

DOI: 10.1016/j.pnucene.2023.104907

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Annular fuel for VVER-1000 reactor: Moderation impact on neutronic behavior

Md Tanvir Ahmed,

Afroza Shelley

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Cited by 3 publications

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Assessment of loading scheme and moderation impact on minor actinide transmutation in VVER-1000 fuel assembly

Hosen,

Sahadath,

Rohan

2024

Nuclear Engineering and Design

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Assessment of loading scheme and moderation impact on minor actinide transmutation in VVER-1000 fuel assembly

Hosen,

Sahadath,

Rohan

2024

Nuclear Engineering and Design

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A comprehensive analysis of neutronic properties of annular dispersed particle fuel

Li,

liu,

Zhang

et al. 2025

Nuclear Engineering and Design

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Neutronic Analysis and Fuel Cycle Parameters of Transuranic-UO2 Fueled Dual Cooled VVER-1000 Assembly

Ahmed,

Shelley,

Hosen

2024

Journal of Nuclear Engineering and Radiation Science

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The feasibility of transuranic (TRU) fuel rods has been studied for a dual-cooled VVER-1000 assembly along with the conventional UO2 fuel rods. It has been found that the heterogeneous arrangements of TRU and UO2 fuel rods help to improve the multiplication factor, enhance the fuel cycle parameters and maintain the negative Doppler coefficient of the reference VVER-1000 assembly. Within the different heterogeneous combinations of TRU and UO2 fuel rods, the equal number of UO2 and TRU fuel rods, which is referred to as Model 6 increased the multiplication factor of the reference assembly by 7.66% at the beginning of the cycle. Furthermore, the fuel cycle parameter becomes almost double for this Model in comparison with the reference assembly. TRU rods make the neutron spectrum of reference assembly slightly harder and increase the fast fission rate. However, the Doppler coefficient becomes less negative, and flux level decreases with increasing the number of TRU rods. By considering the safety parameters and neutronic behavior, Model 6 (equal number of UO2 and TRU fuel rods) is to be effective for the annular fueled VVER-1000 reactor.

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Annular fuel for VVER-1000 reactor: Moderation impact on neutronic behavior

Cited by 3 publications

References 18 publications

Assessment of loading scheme and moderation impact on minor actinide transmutation in VVER-1000 fuel assembly

Assessment of loading scheme and moderation impact on minor actinide transmutation in VVER-1000 fuel assembly

A comprehensive analysis of neutronic properties of annular dispersed particle fuel

Neutronic Analysis and Fuel Cycle Parameters of Transuranic-UO2 Fueled Dual Cooled VVER-1000 Assembly

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