Energija, Vol. 65 No. 1-2, 2016.
Izvorni znanstveni članak
Validation of the CORD-2 System for the NPP Krško Nuclear Core Design Calculations
Marjan Kromar
orcid.org/0000-0001-8960-203X
; “Jožef Stefan” Institute Reactor Physics Division Jamova 39, 1001 Ljubljana, Slovenia
Bojan Kurinčič
; Nuclear Power Plant Krško Engineering Division - Nuclear Fuel & Reactor Core Vrbina 12, 8270 Krško, Slovenia
Sažetak
The CORD-2 package intended for core design calculations of PWRs has been recently
updated with some improved models. Since the modifications could substantially influence the
obtained results, a technical validation process is required. This paper presents comparison of some
calculated and measured parameters of the NPP Krško core needed to qualify the package. Critical
boron concentrations at hot full power for selected cycle burnup points and several parameters
obtained during the start-up testing at the beginning of each cycle (hot zero power critical
concentration, isothermal temperature coefficient and rods worth) for all 27 finished cycles of
operation are considered. In addition, assembly-wise power distribution for some selected cycles is
checked. Comparison has shown very good agreement of the CORD-2 calculated values with the
selected measured parameter of the NPP Krško core.
Ključne riječi
PWR; nuclear core design calculations; core simulator
Hrčak ID:
199630
URI
Datum izdavanja:
15.10.2017.
Posjeta: 492 *