HPLWR FINE MESH CORE ANALYSIS

E. Temesvári, Gy. Hegyi, G. Hordósy, Cs. Maráczy, A. Molnár, Hungarian Academy of Sciences, Hungary

23rd Symposium of AER on VVER Reactor Physics and Reactor Safety (2013, Štrbské Pleso, Slovakia)
Innovative technologies and methods

Abstract

The European version of Supercritical Water Reactors (SCWR), the High Performance Light
Water Reactor (HPLWR) operates in the thermodynamically supercritical region of water. Our
basic objective was to elaborate a stationary coupled neutronic-thermohydraulic code capable for
the calculation of the actual 3-pass core design with fuel assembly clusters. The calculations
covered the neutronic transport calculations of HPLWR fuel assemblies, the coupled neutronicthermohydraulic global calculations and the pin-wise analysis. Applying conservative
assumptions, the relation to the linear heat rate and maximum cladding temperature limits was
checked for the equilibrium cycle of HPLWR with this new code system.

Presentation / full paper