Components of WWER engineering factors for peaking factors: status and trends
Description
One of the topics for discussion at special working group 'Elaboration of the methodology for calculating the core design engineering factors' is the problem of engineering factor components. The list of components corresponds to the phenomena that are taken into account with the engineering factor. It is supposed the better understanding of the influenced phenomena is important stage for developing unified methodology. This paper presents some brief overview of components of the engineering factor for VVER core peaking factors as they are in the Kurchatov Institute methodology. The evolution of some components to less conservative values is observed. Author makes some assumptions as for the further progress in components assessment. The engineering factors providing observance of design limits at normal operation, should cover, with the set probability, the uncertainty, connected with process of core design. For definition of the value of factors it is necessary to define influence of these uncertainties on the investigated parameter of the reactor. Practice consists in defining all possible sources of uncertainties, to estimate influence of each of them, and on their basis to define total influence of all uncertainties. The important stage of a technique of factor calculation is a definition of the list influencing uncertainties. It is obvious that all characteristics of VVER core are known with some uncertainty-owing to manufacturing tolerances, the measurement errors, etc. However essential influence on the parameters connected with safety, render only a part from them. At list formation those characteristics get out only, whose influence is essential to the corresponding parameter. (Author)
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Additional details
Publishing Information
- Publisher
- Kiadja and KFKI Atomenergia Kutatointezet
- Imprint Place
- Budapest (Hungary)
- ISBN
- 978-963-372-643-3 (OE)
- Imprint Title
- Proceedings of the twentieth symposium of atomic energy research
- Imprint Pagination
- 790 p.
- Journal Page Range
- p. 1-9
- Report number
- INIS-SK--2010-097
Conference
- Title
- 20. Atomic Energy Research Symposium on WWER Physics and Reactor Safety
- Dates
- 20-24 Sep 2010
- Place
- Hanasaari, Espoo (Finland)
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Slovakia
- INIS RN
- 41131419
- Subject category
- SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Quality check status
- Yes
- Descriptors DEI
- BORIC ACID; CALCULATION METHODS; CLADDING; DATA COVARIANCES; DESIGN; DISTRIBUTION FUNCTIONS; FLOW RATE; FUEL PINS; LIMITING VALUES; NEUTRON FLUENCE; NUMERICAL DATA; POWER FACTOR; REACTOR CORES; TEMPERATURE DISTRIBUTION; URANIUM 235; VALIDATION; VERIFICATION; WWER TYPE REACTORS;
- Descriptors DEC
- ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BORON COMPOUNDS; DATA; DEPOSITION; DIMENSIONLESS NUMBERS; ENRICHED URANIUM REACTORS; EVEN-ODD NUCLEI; FUEL ELEMENTS; FUNCTIONS; HEAVY NUCLEI; HYDROGEN COMPOUNDS; INFORMATION; INORGANIC ACIDS; INORGANIC COMPOUNDS; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEI; OXYGEN COMPOUNDS; POWER REACTORS; PWR TYPE REACTORS; RADIOISOTOPES; REACTOR COMPONENTS; REACTORS; SPONTANEOUS FISSION RADIOISOTOPES; SURFACE COATING; TESTING; THERMAL REACTORS; URANIUM ISOTOPES; WATER COOLED REACTORS; WATER MODERATED REACTORS; YEARS LIVING RADIOISOTOPES;
Optional Information
- Lead record
- 0ayzk-hzj83
- Notes
- 6 figs.; 6 refs.