SVIBOR - Project code: 2-05-269

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
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Project code: 2-05-269


Safety Analysis of Nuclear Power Facilities


Main researcher: FERETIĆ, DANILO (79570)


Assistants
Type of research: applied
Duration from: 01/01/91. to 01/01/94.
Papers on project (total): 92
Papers on project quoted in Current Contents: 2
Institution name: Fakultet elektrotehnike i računarstva, Zagreb (36)
Department/Institute: Power System Department
Address: Avenija Vukovar 39
City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0)1 61 29 907
Fax: 385 (0)1 61 29 890
E-mail: danilo.feretic@fer.hr
Summary: In the field of safety analyses of nuclear power facilities (i.e. nuclear power plants) the research activities are oriented to mathematical modeling of nuclear power plant systems and components. Mathematical models (for deterministic and probabilistic analysis), included in complex computer codes, are research subject of Electrical Power Engineering Department in the Faculty of Electrical Engineering since 1982. The research is devided into following activities: * Detailed study and the enhancement of the mathematical models and computer codes for deterministic and probabilistic safety analyses * Validation and verification of RELAP5/mod2 computer code using comparison of the analyses for the experimental facility (ROSA - Japan, BETHSY - France, PMK - Hungary) and NPP Krško * Development of the expert system for diagnosis of nuclear power plant transients and accidents * Development of 3-D nodal transient computer code on the base of two-group time dependent diffusion equation with 6 groups of delayed neutrons and thermohydraulic feedback. * Development of fast computer code for evaluation of PWR nuclear power plant behavior * Analyses of the accidents that were not presented in the Final Safety Analyses Report for NE Krško (Station Blackout and Anticipated Transient Without Scram) * Containment condition (pressure, temperature, radiation dose) calculation after design basis accident (Loss of Coolant Accident and Steam Line Break) for the purpose of electrical equipment qualification. * Calculation of form loss factors for NPP Krško primary system components that will be used in RELAP5/mod2 computer code * Probabilistic safety analysis for vital systems of NPP Krško * Calculation of gaseous radioactive effluents release and doses for specific transients

Keywords: safety analyses, nuclear power facilities, nuclear power plants, mathematical modeling, deterministic safety analysis, probabilistic safety analysis, validation and verification of computer codes, expert system, Station Blackout, Anticipated Transient Without Scram, containment condition calculation, design basis accident, electrical equipment qualification, form loss factors, radioactive effluents, dose calculation

Research goals: Further development, enhancement and detailed study of the mathematical models and computer codes used in safety analyses of nuclear power facilities. Development of the expert system for diagnosis of nuclear power plant transients and accidents. Validation and verification of the complex computer codes using the results of the experimental facilities tests. Analysis of the containment ambient conditions for the purpose of electrical equipment qualification. Calculation of form loss factors for NPP Krško primary system components and analysis of gaseous radioactive effluents release.

COOPERATION - INSTITUTIONS


  1. Name of institution: Gesellshaft fur Anlagen- und Reaktorsicherheit (GRS) mbH
    Type of institution: University/Faculty
    Type of cooperation: Joint publishing of scientific papers
    City: 85748 - Garching, Njemačka

  2. Name of institution: Dipartimento di costruzioni meccaniche e nucleari Universita di Pisa
    Type of institution: University/Faculty
    Type of cooperation: Joint project
    City: 56100 - Pisa, Italija

  3. Name of institution: International Atomic Energy Agency (IAEA)
    Type of institution: International organization
    Type of cooperation: Systematic exchange of information
    City: Beč, Austrija
Other information about the project.
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