Abstract
Continuous-energy Monte Carlo reactor physics code Serpent 2 was used to model the critical steady state conditions measured in V-1000 zero-power critical facility at Kurchatov Institute (KI), Moscow in 1990–1992. The Serpent 2 results were compared to measurements and Serpent 2 was used to generate group constants for reactor dynamics code HEXTRAN. The results of a HEXTRAN calculation of the steady state were compared to Serpent 2. The relative power density distribution of the SERPENT2 calculations compared with the measurements was within the statistical accuracy. The comparison of HEXTRAN and Serpent 2 node-wise relative power density distributions showed an accuracy of ±10%.
Kurzfassung
Mit dem Monte-Carlo-Reaktorphysikprogramm SERPENT2 wurden kritische stationäre Zustände des Kerns der V-1000 Nullleistungsversuchsanlage des Kurchatov-Instituts nachgerechnet und mit experimentellen Daten aus den Jahren 1990–1992 verglichen. Zusätzlich wurden mit Serpent 2 Gruppenkonstanten berechnet, die als Eingabedaten im Reaktordynamikprogramm HEXTRAN verwendet wurden. Die Ergebnisse der stationären HEXTRAN-Rechnungen wurden mit den Serpent 2-Ergebnissen verglichen. Die relativen Leistungsdichteverteilungen der Serpent 2-Rechungen verglichen mit den Messwerten ergab Abweichungen im Bereich der statistischen Streuung. Der Vergleich von relativen HEXTRAN und Serpent2-Nodeleistungsdichten zeigte Abweichungen von ±10%.
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