7
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found

      Results of precision calculations of three-dimensional power density in VVER-1000 core with feedbacks using MCU code Translated title: 3D-Berechnungen zur Leistungsdichte in VVER-1000 Kernen unter Berücksichtigung der Rückkopplungen mit dem Monte Carlo Code MCU

      research-article
      1, , 3 , , 2
      Kerntechnik
      Carl Hanser Verlag

      Read this article at

      ScienceOpenPublisher
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Accounting of feedbacks on the density and temperature of the coolant, the fuel temperature, as well as on the equilibrium concentration of xenon is important for VVER reactors, since it has a significant influence on the neutron-physical characteristics of such systems. Therefore, there is a need to incorporate feedbacks into precision calculations of the power density of the VVER-1000 core. In the present work, we used a model of the core, divided into 30 layers by height. The calculations were carried out by means of Russian Monte Carlo code MCU (Monte-Carlo Universal). Individual values of densities and temperatures of the coolant, the fuel temperatures, as well as the equilibrium concentration of xenon were calculated in each layer of every fuel assembly. In addition, power density was calculated pin-by-pin in each layer. The obtained results were compared to the results obtained by means of the certified BIPR-7A code. It is shown that within a reasonable computational time using currently available hardware resources one can obtain the three-dimensional power density with an acceptable accuracy and taking into account the feedbacks on the density and temperature of the coolant, the fuel temperature, as well as the equilibrium concentration of xenon.

          Kurzfassung

          In VVER Reaktoren sind die Parameter Kühlmitteldichte und -temperatur, Brennstofftemperatur sowie Xenongleichgewichtskonzentration sehr eng mit der Leistungsdichte eines Kerns verknüpft. Diese Rückkopplungen müssen daher bei neutronenphysikalischen Berechnungen berücksichtigt werden. In diesem Beitrag wird eine derartige Berechnung mit dem russischen Monte Carlo Programm MCU vorgestellt. Dabei wurde das Kernmodell in 30 Schichten unterteilt und für jede Schicht wurden die o.g. Parameter in jeder Schicht jedes Brennelements berechnet. Zusätzlich wurde die Leistungsdichte schichtweise für jeden Brennstab bestimmt. Die Ergebnisse wurden mit Daten einer Rechnung mit dem zertifizierten Program BIPR-7A verglichen. Es konnte gezeigt werden, dass innerhalb einer angemessenen Rechenzeit mit den derzeit verfügbaren Rechenkapazitäten eine dreidimensionale Leistungsdichteberechnung möglich ist, die die Rückwirkungen der genannten Parameter untereinander berücksichtigt.

          Related collections

          Most cited references1

          • Record: found
          • Abstract: not found
          • Article: not found

          The BURNUP package of applied programs used for computing the isotopic composition of materials of an operating nuclear reactor

            Author and article information

            Journal
            kt
            Kerntechnik
            Carl Hanser Verlag
            0932-3902
            2195-8580
            28 August 2013
            : 78
            : 4
            : 343-346
            Affiliations
            1 Artem S. Bikeev, Email: bas@ 123456mcuproject.ru , National Research Center “Kurchatov Institute”, Kurchatov sq. 1, 123182, Moscow, Russia
            2 D. A. Shkarovsky, National Research Center “Kurchatov Institute”, Kurchatov sq. 1, 123182, Moscow, Russia
            Author notes
            3 Artem S. Bikeev (corresponding author), Email: bas@ 123456mcuproject.ru
            Article
            KT110381
            10.3139/124.110381
            c9330abf-d1c5-4298-b8d7-724da808d63c
            © 2013, Carl Hanser Verlag, München
            History
            : 20 February 2013
            Page count
            References: 7, Pages: 4
            Categories
            Technical Contributions/Fachbeiträge

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

            Comments

            Comment on this article

            Related Documents Log