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      Physical startup tests calculations for Dukovany NPP using MOBY-DICK macrocode Translated title: Berechnung der physikalischen Inbetriebnahmeversuche des Kernkraftwerks Dukovany mit dem MOBY-DICK-Makrocode

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      Kerntechnik
      Carl Hanser Verlag

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          Abstract

          Physical startup tests are an important part of the operation of each nuclear reactor fuel cycle. This paper is focused on calculations of these tests for Dukovany NPP using MOBY-DICK diffusion macrocode. In this paper two tests are presented, specifically SCRAM test and “Weight of the 6 th group of control assemblies” test. Both tests are described, methodology of calculation is introduced and results of calculations are compared with experimental data.

          Kurzfassung

          Physikalische Inbetriebnahmetests sind ein wichtiger Bestandteil des Betriebs jedes Kernreaktor-Brennstoffkreislaufs. Dieses Papier beschreibt Berechnungen dieser Tests für das Kernkraftwerk Dukovany unter Verwendung des MOBY-DICK-Diffusionsmakrocodes. In diesem Beitrag werden zwei Tests vorgestellt: der SCRAM-Test und der Test „Gewicht der sechsten Gruppe der Steuerstäben“. Beide Tests werden beschrieben, die Berechnungsmethodik vorgestellt und die Ergebnisse der Berechnungen mit experimentellen Daten verglichen.

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          Most cited references3

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          Delayed-Neutron Data for Reactor-Physics Analysis

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            An analysis of reactivity prediction during the reactor start-up process

            The different VVER-440 core fuel loadings subcriticality evaluations are performed during the start-up process by boron dilution or control assembly withdrawn by macrocode MOBY-DICK calculations. The dynamic reactivity and quasicritical reactivity are compared and sensitivity of reactivity prediction at the low boundary of start-up interval ( ρ = −0,01) has been provided on the basis of different modelling of ionization chamber (IC) response calculation. Special attention is paid to the impact of power distribution and spontaneous fission distribution form factor on IC response correction during control assembly movement. Precision and robustness of different corrections of IC signal processing in real core start-up processed IC signals was evaluated.
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              Calculation of Point-Kinetics Parameters in the MOBY-DICK System

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                Author and article information

                Journal
                kt
                Kerntechnik
                Carl Hanser Verlag
                0932-3902
                2195-8580
                27 August 2018
                : 83
                : 4
                : 347-353
                Affiliations
                1 ŠKODA JS a.s., Orlík 266/15, 316 00, Plzeň Czech Republic
                Author notes
                Article
                KT110912
                10.3139/124.110912
                87e384a1-e5aa-407b-b94e-648b11d041a0
                © 2018, Carl Hanser Verlag, München
                History
                : 31 January 2018
                Page count
                References: 8, Pages: 7
                Product
                Self URI (journal page): https://www.hanser-elibrary.com/loi/kt
                Categories
                Technical Contributions/Fachbeiträge

                Materials technology,Materials for energy,Nuclear physics
                Materials technology, Materials for energy, Nuclear physics

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