Results 1 to 10 of about 821 (181)

Automated system for control of VVER-1000 fuel properties considering fuel cladding damage parameter. [PDF]

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2018
An automated system for control of VVER-1000 reactor fuel properties considering fuel element cladding damage parameter, fuel burnup and axial offset has been proposed.
Pelykh S.   +3 more
doaj   +7 more sources

Numerical study on PWR fuel rod cladding ballooning and burst behavior with the thermo-mechanical coupling finite element method

open access: yesInternational Journal of Advanced Nuclear Reactor Design and Technology
The ballooning behavior of fuel rod cladding is an important issue of nuclear reactor, which may initiate a severe nuclear reactor accident. Based on COMSOL multi-physical module, this research established a thermo-mechanical coupling finite element ...
Xin Zhang   +4 more
doaj   +3 more sources

Establishment and verification of chemical interaction model between fast reactor fuel and cladding under high burnup

open access: yesHe jishu, 2022
BackgroundUranium dioxide fuel elements of fast neutron reactor operate under the conditions of high burnup, high neutron fluence rate, high line power and high temperature.
CHEN Qidong, GAO Fuhai
doaj   +1 more source

Multiphysics Modeling of Thorium-Based Fuel Performance With Cr-Coated SiC/SiC Composite Under Normal and Accident Conditions

open access: yesFrontiers in Energy Research, 2021
Using the finite element multiphysics modeling method, the performance of the thorium-based fuel with Cr-coated SiC/SiC composite cladding under both normal operating and accident conditions was investigated in this work.
Shengyu Liu   +4 more
doaj   +1 more source

Key factors affecting the thermal performance of annular fuel elements in LFR

open access: yesHe jishu, 2021
BackgroundThe key factors affecting the thermal performance of the lead-cooled fast reactor (LFR) annular fuel are very important to improve the core power density of LFR.PurposeThis study aims to analyze those key factors and provide guidance for ...
WANG Yuxuan   +5 more
doaj   +1 more source

Measurement of the spent fuel rod cladding temperature during the in-pile testing at 500–900°C [PDF]

open access: yesNuclear Energy and Technology, 2018
This paper deals with the problem of measuring the VVER-1000 burnup fuel cladding temperature in a 500–900°C range in the process of experiments in a channel of the MIR research reactor to obtain data on the fuel element behavior under the influence of ...
Oleg I. Dreganov   +3 more
doaj   +3 more sources

Coupled Modeling and Simulation of Phase Transformation in Zircaloy-4 Fuel Cladding Under Loss-of-Coolant Accident Conditions

open access: yesFrontiers in Energy Research, 2021
Under loss-of-coolant conditions, the temperature on fuel cladding will increase rapidly (up to 1000–1500 K), which will not only cause a dramatic oxidation reaction of Zircaloy-4 and an increase in hydrogen concentration but also cause an allotropic ...
Wenjun Lu   +3 more
doaj   +1 more source

Examination of fuel elements irradiated in the reactor of the World’s First NPP after long-term storage [PDF]

open access: yesNuclear Energy and Technology, 2023
Examinations of fuel elements with two different fuel compositions, U-Mo+Mg and UO2+Mg, irradiated in the AM reactor after their long-term storage do not reveal any visible defects on the surface of their outer claddings.
Sergey N. Ivanov   +5 more
doaj   +3 more sources

Three-Dimensional Modeling of Thermal-Mechanical Behavior of Accident Tolerant Fuels

open access: yesFrontiers in Energy Research, 2021
Considering the safety issues of the traditional UO2-Zr fuel, a variety of accident-tolerant fuel (ATF) candidates have been proposed in recent years.
Zitao Zeng   +9 more
doaj   +1 more source

Thermal creep effects of aluminum alloy cladding on the irradiation-induced mechanical behavior in U–10Mo/Al monolithic fuel plates

open access: yesNuclear Engineering and Technology, 2020
Three-dimensional finite element simulations are implemented for the in-pile thermo-mechanical behavior in U–Mo/Al monolithic fuel plates with different thermal creep rates of cladding involved. The numerical results indicate that the thickness increment
Xiaobin Jian, Shurong Ding
doaj   +1 more source

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