Conference Proceedings Paper
COMPARISON OF UOX AND MOX FOR SUPER CRITICAL LWR
The 5th International Symposium on SuperCritical Water-cooled Reactors - 2011 March 13-16
Wolfgang Bernnat (University of Stuttgart)
For the present design variant of fuel assemblies of the High Performance LWR, assembly and assembly cluster burnup calculations were performed to get information about k-infinity vs. burnup and power distributions for different moderator and coolant states. The analysis was performed for UOX and MOX fuel by the Monte Carlo code MCNP5 coupled with a burnup code. The moderator and coolant state parameters were varied according to typical values in evaporator, super heater I and super heater II. Single assemblies were moved inside a cluster to simulate bending effects due to temperature gradients etc. to get information about the influence on the power distribution.
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