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- W2896912607 abstract "Abstract Use of the reconstructed fuel assemblies from partially burnt nuclear fuel pins is analyzed. This reutilization option is a potential candidate technique to make better use of the nuclear resources. Standard two step method is used to calculate node i.e. fuel assembly average burnup and then pin by pin η values are reconstructed to ascertain the residual reactivity in the used fuel pins. Fuel pins with η > 1.0 are used to reconstruct to-be-reused fuel assemblies. These reconstructed fuel assemblies are burnt during the cycle 3, 4, 5 and 6 of a 1000 MW PWR core by replacing fresh, once burnt and twice burnt fuel assemblies of the reference core configurations. It is concluded that using reconstructed fuel assemblies for the fresh fuel affect dearly on the cycle length (>50 EFPD) when more than 16 fresh fuel assemblies are replaced. However, this loss is less than 20 days if the number of fresh fuel assemblies is less than eight. For the case of replacing twice burned fuel, cycle length could be increased slightly (10 days or so) provided burnt fuel pins from other reactors were also available. Reactor safety parameters, like axial off set ( ± 10 % ) , Doppler temperature coefficient ( 0 ) , moderator temperature coefficient at HFP ( 0 ) are always satisfied. Though, 2D and 3D pin peaking factors are satisfied ( 1.55 ) and ( 2.52 ) respectively, for the cases using eight or less reconstructed fuel assemblies only." @default.
- W2896912607 created "2018-10-26" @default.
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- W2896912607 date "2019-04-01" @default.
- W2896912607 modified "2023-09-24" @default.
- W2896912607 title "Evaluation of the reutilization of used nuclear fuel in a PWR core without reprocessing" @default.
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- W2896912607 doi "https://doi.org/10.1016/j.net.2018.09.026" @default.
- W2896912607 hasPublicationYear "2019" @default.
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