Procházení Acta Polytechnica CTU Proceedings. 2019, vol. 24 dle data publikování

Zobrazují se záznamy 1-7 z 7

    • ANALYSIS OF NEUTRON FIELDS GENERATED IN SPALLATION TARGETS OF B-URAN EXPERIMENTAL ASSEMBLY USING MONTE CARLO METHOD 

      Autor: Šťastný, Ondřej; Zeman, Miroslav; Král, Dušan; Katovský, Karel; Melyan, Elmira; Adam, Jindřich; Solnyshkin, Alexander Alexandrovich
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The aim of this paper is to introduce experimental assembly B-URAN and the results of Monte Carlo simulations of neutron fields, which will be generated by using various spallation targets. This experimental assembly was ...

    • DIAMOND DETECTORS FOR FAST TRANSIENT SCRAM MEASUREMENTS – THE DETECTOR DEVELOPMENT 

      Autor: Novák, Ondřej; Sklenka, Lubomír; Pomorski, Michal; Lynde, Clement
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      This paper presents a development of special diamond detector for time dependent neutron flux measurements in a nuclear reactor. Neutron flux changes during SCRAM are difficult to measure by existing detector technologies. ...

    • COATED CLADDING BEHAVIOR DURING HIGH-TEMPERATURE TRANSIENTS 

      Autor: Chalupová, Adéla; Krejčí, Jakub; Cvrček, Ladislav; Ševeček, Martin; Rozkošný, Vojtěch; Přibyl, Antonín; Halodová, Patricie; Gávelová, Petra
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The concept of accident-tolerant fuels has been proposed and widely investigated over the past decade. The contribution is focused on one of the near-term approaches - the modification of the surface of existing Zr-alloy ...

    • HIGH-TEMPERATURE STEAM AND AIR OXIDATION OF CHROMIUM-COATED OPTIMIZED ZIRLO™ 

      Autor: Bourdon, Gauthier; Ševecek, Martin; Krejčí, Jakub; Cvrček, Ladislav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      The presented study focuses on Cr-coated cladding material and its oxidation performance in high-temperature steam and air. As the substrate material, Optimized ZIRLO™ was used which was coated by chromium using unbalanced ...

    • DEBRIS-FRETTING TEST OF COATED AND UNCOATED ZR-1%NB CLADDING 

      Autor: Kopeć, Marcin; Malá, Martina; Cvrček, Ladislav; Krejčí, Jakub
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Debris fretting is one of the most significant fuel rod failure causes. An approach to mitigate this is to apply special coatings on the surface of the cladding that are supposed to increase the wear resistance. This paper ...

    • RESIDUAL HEAT ESTIMATION OF NUCLEAR FUEL IN ENERGY WELL REACTOR 

      Autor: Šošková, Jana; Dambrosio, Antonio; Mazzini, Guido; Ruščák, Marek
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Energy Well (EW) is a concept of a small modular reactor, designed as a source of energy for places with low infrastructure. Its design combines TRISO fuel particles, graphite moderator and molten salt coolant. One of key ...

    • EFFECT OF NACL ON NEUTRON FLUX DENSITY IN GRAPHITE BLOCK 

      Autor: Slančík, Tomáš; Števanka, Kamil
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
      Aim of this work is to study the effect of NaCl on neutron flux through graphite block. Graphite block had 39 channels drilled through it and filled with NaCl. Au and In foils and In wire was used for neutron activation ...