Safety criteria and their comparison between WWER and PWR
Description
Relevant PWR and WWER fuel safety related criteria are identified and classified into: (a) safety criteria, (b) operational criteria, and (c) design criteria. All criteria and their basis were reviewed in details. PWR and WWER fuel safety criteria are found in principle compatible (very similar if not identical basis) - thus, no fundamental distinction in the approach to defining fuel safety criteria between Eastern and Western Europe appears to exist. Some differences have been observed between the individual criteria and/or their numerical values. These are mostly due to differences in fuel design and materials. The variety in reactor characteristics and country specific licensing requirements sometimes lead to differences between criteria definitions. The report captures the characteristics of PWR/WWER fuel safety and serves as a basis to outline the general safety case for PWR and WWER fuel. The report also serves to highlight the basic fuel safety principles and their bases, and broadens the insight in failure. Especially in view of high burnup and new materials, there is a need to further develop the safety criteria and their numerical values. Even without such innovations, there is a clear potential for refining and improving some of the fuel safety related criteria and/or their numerical values. This report could serve as a basis for discussions on a more in-depth co-operation for future activities needed to verify the existing safety criteria or to support improvements. Closer collaboration in the review of PWR (LWR) and WWER safety criteria and in reviewing the respective safety cases is recommended
Availability note (English)
Available from INIS in electronic formFiles
36040516.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 18 p.
- Report number
- INIS-BG--0858
Conference
- Title
- International conference on WWER fuel performance, modelling and experimental support
- Dates
- 29 Sep - 3 Oct 2003
- Place
- Varna (Bulgaria)
INIS
- Country of Publication
- Bulgaria
- Country of Input or Organization
- Bulgaria
- INIS RN
- 36040516
- Subject category
- SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
- Resource subtype / Literary indicator
- Conference
- Quality check status
- Yes
- Descriptors DEI
- CLADDING; CONTROL ELEMENTS; CRITICAL HEAT FLUX; DEPARTURE NUCLEATE BOILING; ENRICHMENT; FUEL PELLETS; IAEA; LOSS OF COOLANT; OECD; URANIUM 235; WWER TYPE REACTORS;
- Descriptors DEC
- ACCIDENTS; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BOILING; DEPOSITION; ENRICHED URANIUM REACTORS; EVEN-ODD NUCLEI; HEAT FLUX; HEAVY NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; INTERNATIONAL ORGANIZATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEATE BOILING; NUCLEI; PELLETS; PHASE TRANSFORMATIONS; POWER REACTORS; PWR TYPE REACTORS; RADIOISOTOPES; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTORS; SPONTANEOUS FISSION RADIOISOTOPES; SURFACE COATING; THERMAL REACTORS; URANIUM ISOTOPES; WATER COOLED REACTORS; WATER MODERATED REACTORS; YEARS LIVING RADIOISOTOPES;
Optional Information
- Notes
- 2 figs., 9 tabs., 7 refs.