Reactor Monitoring and Simulator Department

The Reactor Monitoring and Simulation Department is focusing on the development of

  • on-line core surveillance and analysis systems,
  • noise diagnostics systems,
  • process monitoring and plant information systems,
  • nuclear power plant simulation systems,
  • reactivity measurement systems,
  • operator support and expert systems

to be applied mainly at nuclear power plants of VVER-440 type. The staff of the department consists of experienced reactor physicists, electrical and mechanical engineers, system and application programmers. Main references:

  • VERONA core monitoring system (Paks NPP, Unit 1-4. + simulator)
  • PAZAR reactor noise data acquisition and evaluation system (Paks NPP, Unit 1-4.)
  • full-scope simulator (Paks NPP)
  • process computer (Paks NPP, Unit 1-4. + simulator)
  • Critical Safety Functions Monitoring System (Paks NPP, Unit 1-4. + simulator)
  • RMR reactivity measuring system (Paks NPP, Unit 1-4.)
  • CERTA VITA on-line information system (Hungarian Atomic Energy Authority)

Traditionally the Department is responsible for the development and maintenance of the VERONA core monitoring system, operated at all four units of the Paks NPP. The present version of VERONA is the result of a five years long project aimed to create a system supporting reactor power increase and the application of new fuel containing burnable poison. Another traditional R&D activity at our Department is the development of reactor noise diagnostic measurement methods, complete noise data acquisition systems and interpretation tools. Our Department was performing regular noise measurements at Paks NPP during the past 15 years, providing valuable information on the long term trends of core behaviour. The present version of the noise data acquisition and evaluation system (PAZAR) is the result of a five years development project aimed to create a new system supporting reactor power increase and service time extension. The Paks NPP full-scope simulator was developed by the Simulator Department in the eighties in co-operation with Nokia Afora (Finland). The full-scope simulator is an indispensable tool for training control room personnel and the Paks simulator was serving the plant with excellent results during the past cca. 20 years. Recently the model system of the simulator was renewed, a new, 3D core neutronics model and a new, nodal thermal-hydraulics model was installed.

The colleagues of the department