NEUTRONIC EVALUATION OF THE UO2-BEO FUEL BASED ON THE LATTICE PHYISICS CALCULATION

Qian Zhang; Xiaomiao Chi; Yunfei Zhang; Liang Liang; Qiang Zhao; Xiang Wang; Xingjian Wen

doi:10.1299/jsmeicone.2019.27.1264

2019.27

Session ID : 1264

DOI https://doi.org/10.1299/jsmeicone.2019.27.1264

Conference information

Host: The Japan Society of Mechanical Engineers

Name : The 27th International Conference on Nuclear Engineering (ICONE27)

Date : May 19, 2019 - May 24, 2019

NEUTRONIC EVALUATION OF THE UO2-BEO FUEL BASED ON THE LATTICE PHYISICS CALCULATION

*Qian Zhang, Xiaomiao Chi, Yunfei Zhang, Liang Liang, Qiang Zhao, Xiang Wang, Xingjian Wen

Author information

*Qian Zhang
Fundamental Science on Nuclear Safety and Simulation Technology Laboratory
College of Nuclear Science and Technology, Harbin Engineering University
Xiaomiao Chi
Fundamental Science on Nuclear Safety and Simulation Technology Laboratory
College of Nuclear Science and Technology, Harbin Engineering University
Yunfei Zhang
Fundamental Science on Nuclear Safety and Simulation Technology Laboratory
College of Nuclear Science and Technology, Harbin Engineering University
Liang Liang
Fundamental Science on Nuclear Safety and Simulation Technology Laboratory
College of Nuclear Science and Technology, Harbin Engineering University
Qiang Zhao
Fundamental Science on Nuclear Safety and Simulation Technology Laboratory
College of Nuclear Science and Technology, Harbin Engineering University
Xiang Wang
Fundamental Science on Nuclear Safety and Simulation Technology Laboratory
College of Nuclear Science and Technology, Harbin Engineering University
Xingjian Wen
School of Nuclear Science and Technology Xi’an Jiaotong University

Keywords: Neutronic, BeO fuel, reactivity

CONFERENCE PROCEEDINGS RESTRICTED ACCESS

Details

Abstract

Using an in-house deterministic lattice physics calculation code, the enhanced thermal conductivity fuel concept of the UO₂-BeO fuel is analyzed on the pin and lattice level. Due to the neutron absorption effect and the moderating effect brought by BeO, impact on the reactivity caused by different BeO volume fraction is investigated. Results show that increase of enrichment is necessary to maintain the overall reactivity provided by fuel lattice for the entire fuel cycle. The neutronic features of the UO2-BeO fuel during depletion is investigated that adding BeO leads to reduce on ²³⁹Pu production. In addition, the reactivity coefficient of the UO₂- BeO fuel is preliminarily investigated and it is noteworthy that increasing BeO volume fraction will lead to less negative reactivity feedback.

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