Methods and results of determining the impurity gas amount in ceramic fuel

Vityuk, Galina; Vurim, Alexander; Skakov, Маzhyn; Pakhnits, Alexander V.

doi:10.1016/j.anucene.2020.107843

Cited by 5 publications

(2 citation statements)

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“…For this purpose, a capsule is provided, which is a sealed structure and placed inside a protective casing (Figure 1). On surface of the capsule, in the upper and lower parts, there are steel thickening (7,8,9,10), which act as additional absorbers and are designed to provide the required height profile of energy release in the fuel element.…”

Section: Design Of An In-pile Experimental Devicementioning

confidence: 99%

“…An important task when testing model fuel elements and fuel assemblies in the IGR reactor is the implementation of a given power release. It, with high accuracy, is provided thanks to a number of developed methods which are aimed for the determining the tests energy parameters [5,6], location and mass of fuel composition inside the test device [7,8] and impurity gas releasing from the fuel during the irradiation [9]. IGR technical possibilities as well as the developed methodical base made it possible to launch the ambitious international experimental programs EAGLE (Experimental Acquisition of Generalized Logic to Eliminate re-criticalities) [10,11] and SAIGA (Severe Accident In-pile experiments for Gen-IV reactors and the Astrid prototype) [12].…”

Section: Introductionmentioning

confidence: 99%

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Feasibility study mixed oxide fuel tests in the impulse graphite reactor

Vityuk

Vurim

et al. 2022

Eurasian j. phys. funct. mater.

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The article presents the results of computational studies to substantiate the possibility of testing the fuel of the Multipurpose hYbrid Research Reactor for a High-tech Applications reactor (MYRRHA) in the Impulse Graphite research Reactor (IGR). A scheme for conducting experiments is proposed, which allows simulating the operating conditions of MYRRHA fuel elements in a wide range of changes in their thermohydraulic parameters, including the conditions of accidents with the destruction of fuel pellets, blocking the flow area and stopping the coolant flow. A method for thermohydraulic calculations has been developed, implemented in the software environment of the computational fluid dynamics (CFD) code. A computational model of the experimental device is developed, optimized according to the spatial partitioning grid. A turbulence model for determining the parameters of convective heat and mass transfer in a eutectic lead-bismuth alloy is selected and substantiated.

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Section: Design Of An In-pile Experimental Devicementioning

confidence: 99%