scholarly journals Possible effects of UO/sub 2/ oxidation on light water reactor spent fuel performance in long-term geologic disposal

1982 ◽  
Author(s):  
M Almassy ◽  
R Woodley
Keyword(s):  
Light Water Reactor ◽  
Spent Fuel ◽  
Fuel Performance ◽  
Light Water ◽  
Water Reactor ◽  
Geologic Disposal

Multiphysics coupled modeling of light water reactor fuel performance

2016 ◽  
Vol 91 ◽  
pp. 38-48 ◽  
Author(s):  
Rong Liu ◽  
Andrew Prudil ◽  
Wenzhong Zhou ◽  
Paul K. Chan
Keyword(s):  
Reactor Fuel ◽  
Light Water Reactor ◽  
Coupled Modeling ◽  
Fuel Performance ◽  
Light Water ◽  
Water Reactor

scholarly journals Storage of LWR (light-water-reactor) spent fuel in air

1989 ◽  
Author(s):  
L.E. Thomas ◽  
L.A. Charlot ◽  
J.E. Coleman ◽  
R.W. Knoll
Keyword(s):  
Light Water Reactor ◽  
Spent Fuel ◽  
Light Water ◽  
Water Reactor

scholarly journals Investigation on Aerosol Pool Scrubbing Model During Severe Accidents

2021 ◽  
Vol 9 ◽  
Author(s):  
L. W. He ◽  
Y. X. Li ◽  
Y. Zhou ◽  
S. Chen ◽  
L. L. Tong ◽  
...  
Keyword(s):  
Bubble Size ◽  
Nuclear Power ◽  
Predictive Ability ◽  
Decontamination Factor ◽  
Light Water Reactor ◽  
Severe Accident ◽  
Spent Fuel ◽  
Analysis Model ◽  
Light Water ◽  
Water Reactor

During a nuclear power plant severe accident, discharging gas mixture into the spent-fuel pool is an alternative containment depressurization measurement through which radioactive aerosols can be scrubbed. However, it is necessary to develop a code for analyzing the decontamination factor of aerosol pool scrubbing. This article has established the analysis model considering key aerosol pool scrubbing mechanisms and introduced the Akita bubble size relationship. In addition, a code for evaluating the decontamination factor of aerosol pool scrubbing was established. The Advanced Containment Experiment and Light Water Reactor Advanced Containment Experiment were simulated with the code considering different bubble sizes of the Akita model and MELCOR default value to verify the suitability of the Akita bubble size model for simulating aerosol pool scrubbing. Furthermore, the simulation results were compared with the results analyzed by MELCOR code and COCOSYS code from literature, and equivalent predictive ability was observed. In addition, a sensitivity analysis on bubble size was conducted, and the contribution of different behaviors and mechanisms has been discussed. Finally, the bubble breakup equation was revised and verified with the conditions of the multi-hole bubbler in the Advanced Containment Experiment and Light Water Reactor Advanced Containment Experiment.

scholarly journals Planning support document for the EPRI Light Water Reactor Fuel Performance program

1977 ◽  
Author(s):  
J. T.A. Roberts ◽  
F. E. Gelhaus ◽  
H. Ocken ◽  
S. T. Oldberg ◽  
G. R. Thomas
Keyword(s):  
Reactor Fuel ◽  
Light Water Reactor ◽  
Fuel Performance ◽  
Light Water ◽  
Water Reactor ◽  
Planning Support

Multiphysics Modeling of Thorium-Based (Th, U)O2 and (Th, Pu)O2 Fuel Performance in a Light Water Reactor

2018 ◽  
Author(s):  
Rong Liu ◽  
Jie-Jin Cai ◽  
Wen-Zhong Zhou ◽  
Ye Wang
Keyword(s):  
Fuel Burnup ◽  
Light Water Reactor ◽  
Gas Release ◽  
Fuel Performance ◽  
Light Water ◽  
Water Reactor ◽  
Fission Gas ◽  
Fission Gas Release ◽  
Centerline Temperature ◽  
Plenum Pressure

ThO2 has been considered as a possible replacement for UO2 fuel for future generation of nuclear reactors, and thorium-based mixed oxide (Th-MOX) fuel performance in a light water reactor was investigated due to better neutronics properties and proliferation resistance compared to conventional UO2 fuel. In this study, the thermal, mechanical properties of Th0.923U0.077O2 and Th0.923Pu0.077O2 fuel were reviewed with updated properties and compared with UO2 fuel, and the corresponding fuel performance in a light water reactor under normal operation conditions were also analyzed and compared by using CAMPUS code. The Th0.923U0.077O2 fuel were found to decrease the fuel centerline temperature, while Th0.923Pu0.077O2 fuel was found to have a bit higher fuel centerline temperature than UO2 fuel at the beginning of fuel burnup, and then much lower fuel centerline than UO2 fuel at high fuel burnup. The Th0.923U0.077O2 fuel was found to have lowest fuel centerline temperature, fission gas release and plenum pressure. While the Th0.923Pu0.077O2 fuel was found to have earliest gap closure time with much less fission gas release and much lower plenum pressure compared to UO2 fuel. So the fuel performance could be expected to be improved by applying Th0.923U0.077O2 and Th0.923Pu0.077O2 fuel.

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