In-core fuel management code package validation for WWERs

Under its in-core fuel management activities, the IAEA has set up a co-ordinated research programme (CRP) on In-core Fuel Management Code Package Validation for LWRs. The objective of this CRP was to obtain well defined cases for verifying the in-core fuel management code packages, and further to improve the in-core fuel management capabilities. This CRP was performed in three reactor types, namely PWR, BWR and WWER, because of the significant differences in core layout and core management of these reactor types. Accordingly, in the framework of the WWER part, benchmarks were developed for the 440 and 1000 MWe WWER reactors. These benchmarks are appropriate to validate WWER fuel management computer code packages. The benchmarks were outlined at a Consultancy in 1988 in Ljubljana and further specified at a Research Co-ordination Meeting/Technical Committee Meeting (RCM/TCM), held in Rez in 1991. In Chapter 2 of the report, the reactor and components descriptions are given and measured data from operating plants are obtained for specifying benchmark problems. A brief description of the methods and calculating procedures by each participants to analyse the WWER reactors is presented in Chapter 3. In Chapter 4 the results of the analyses and comparisons with the measured data are included. 51 refs, figs, tabs