Dynamic ballooning analysis of a generic PWR fuel assembly using the multi-rod coupled MATARE code
A mulit-rod presentation of different zones of a typical PWR fuel assembly under post-LOCA reflooding conditions was analysed with the MATARE code. The MATARE (MWbel-TAlink-RElap)
code is a multi-pin deformation analysis code created through the dynamic coupling between the thermal-hydraulic code RELAP5 and multiple instances of the single-pin thermal mechnanics code MABEL. The main aim is to predict the behaviour of the fuel rods under conditions leading to clad ballooning, and to investigate whether plausible inter-pin inhomogeneities inhibit coherent ballooning and consequent flow passage blockage. The inter-pin differences analysed included different fuel burn-ups, the presence of burnable poisons (Gadolinium oxide), and the existence of the control rod guide thimbles. Three different fuel assembly zones were analysed.
AMMIRABILE Luca;
WALKER Simon;
2014-01-16
ELSEVIER SCIENCE SA
JRC84657
0029-5493,
http://www.sciencedirect.com/science/article/pii/S0029549313007188,
https://publications.jrc.ec.europa.eu/repository/handle/JRC84657,
10.1016/j.nucengdes.2013.12.037,
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