Grid-to-rod flow-induced impact study for PWR fuel in reactor
TLDR
In this article, the authors used finite element analysis (FEA) to evaluate the hydraulic flow-induced impact intensity between the fuel rods and the spacer grids for grid-to-rod fretting wear mitigation.About:
This article is published in Progress in Nuclear Energy.The article was published on 2016-08-01 and is currently open access. It has received 30 citations till now. The article focuses on the topics: Fretting & Nuclear reactor.read more
Citations
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Journal ArticleDOI
Numerical investigations on flow-induced vibration of fuel rods with spacer grids subjected to turbulent flow
TL;DR: In this paper, a numerical simulation is carried out to investigate the interaction of fuel rods embedded in a spacer grid with mixing vane subjected to strong turbulent flow, which can be used to predict the vibrations of the fuel rods accurately and this will be useful for the further fretting wear evaluating.
Journal ArticleDOI
Finite element simulation of gap opening between cladding tube and spacer grid in a fuel rod assembly using crystallographic models of irradiation growth and creep
Anirban Patra,Carlos N. Tomé +1 more
TL;DR: A physically-based crystal plasticity framework for modeling irradiation growth and creep is interfaced with the finite element code ABAQUS to study the contact forces and the gap evolution between the spacer grid and the cladding tube as a function of irradiation in a representative section of a fuel rod assembly as discussed by the authors.
Journal ArticleDOI
Recent Status and Prospects on Thermochemical Heat Storage Processes and Applications.
TL;DR: In this article, the authors highlight several issues that impede the maturity of thermochemical heat storage (TCHS) technology, such as limited number of research works dedicated to the topic, simulation results that are too illusory and impossible to implement in real prototypes, incomplete analysis of the proposed works (simulation works without experimentation or experimentations without prior simulation study), and the endless problem of heat and mass transfer limitation.
Journal ArticleDOI
Autoclave grid-to-rod fretting wear evaluation of a candidate cladding coating for accident-tolerant fuel
TL;DR: In this paper, the grid-to-Rod-fretting (GTRF) phenomenon was investigated using a unique bench-scale autoclave testing rig mimicking the environment in an industrial full-assembly PWR simulator.
Journal ArticleDOI
Evolution of grid-to-rod fretting of nuclear fuel rods during burnup
Štěpán Dyk,Vladimír Zeman +1 more
TL;DR: In this paper, the authors present a complex modeling concept for the grid-to-rod fretting analysis of fuel rods due to vibration caused by pressure pulsations of the coolant.
References
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Journal ArticleDOI
The mechanism of fretting — A review
TL;DR: In this article, the authors brought up-to-date the known facts concerning the mechanism of fretting wear in metals with special reference to the common engineering materials iron and steel under normal conditions.
Journal ArticleDOI
The Fretting Corrosion of Mild Steel
J. S. Halliday,W. Hirst +1 more
TL;DR: A quantitative investigation of the fretting corrosion of mild-steel specimens is described in this paper, where measurements have been made of the frictional forces, the degree of damage and the variations in the electrical contact resistance for a wide range of applied loads, vibration amplitudes and number of cycles of motion.
ReportDOI
PNNL Stress/Strain Correlation for Zircaloy
TL;DR: In this article, the authors presented a model that can calculate true stress, true strain, and the possible failure of the fuel rod cladding based on uniaxial test data.
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An Analytical and Experimental Investigation of the Vibration of Cylindrical Reactor Fuel Elements in Two-Phase Parallel Flow
TL;DR: It is generally agreed that lateral vibration of nuclear fuel elements is random in nature and is caused by random pressure fluctuations acting on the element surface as discussed by the authors, and a series of tests have been con...