Published May 1999 | Version v1
Report Metadata-only

Behaviour of different modified WWER type fuels during the initial stage of irradiation in IFA-503.2

Creators

Description

The test IFA-503.2 is carried out against the background of the first loading (IFA-503.1) where the behaviour of standard WWER-440 fuel in comparison with PWR type fuel was investigated [1,2,3]. The results obtained in the first loading prompted a test with state-of-the-art WWER-440 fuel pellets produced by MSZ Elemash (Russia) with an improved technology. The main goal of this test is to generate representative data for different types of modified WWER-440 fuel with emphasis on densification as well as thermal performance, swelling and fission gas release. Three types of the modified UO2 WWER-440 fuel pellets, selected from tentative produced lots, were loaded into 10 fuel rods. Two reference rods were fuelled with fresh PWR type pellets similar to those used in the previous loading. The lower cluster of IFA-503.2 comprises two PWR type fuel rods instrumented with ET and EF detectors, two WWER2 fuel type rods and two WWER1 fuel type rods fitted with ET, EF and PF sensors. The upper cluster consists of 4 WWER1 fuel rods equipped with 2 ET, 2 PF and 2 EF detectors, and 2 WWERO fuel (modified standard WWER-440 fuel) rods instrumented with ET, EF and PF detectors. The preliminary analysis of the measurements for the first irradiation period is presented in this report in comparison with some results obtained from the first loading (author) (ml)

Availability note (English)

Available from IFE, PO Box 173, 1751 Halden Norway

Additional details

Publishing Information

Imprint Pagination
34 p.
Report number
HWR--610

INIS

Country of Publication
Norway
Country of Input or Organization
Norway
INIS RN
38083003
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature, Numerical Data
Descriptors DEI
EXPERIMENTAL DATA; FISSION PRODUCT RELEASE; FUEL DENSIFICATION; FUEL PELLETS; HBWR REACTOR; IRRADIATION; NUCLEAR FUELS; PERFORMANCE; PWR TYPE REACTORS; REACTOR NOISE; SWELLING; THERMAL ANALYSIS; URANIUM DIOXIDE; WWER TYPE REACTORS
Descriptors DEC
ACTINIDE COMPOUNDS; BHWR TYPE REACTORS; CHALCOGENIDES; DATA; DEFORMATION; ENERGY SOURCES; ENRICHED URANIUM REACTORS; EXPERIMENTAL REACTORS; FUELS; HEAVY WATER COOLED REACTORS; HEAVY WATER MODERATED REACTORS; INFORMATION; MATERIALS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PELLETS; POWER REACTORS; PWR TYPE REACTORS; REACTOR MATERIALS; REACTORS; RESEARCH AND TEST REACTORS; TANK TYPE REACTORS; THERMAL REACTORS; URANIUM COMPOUNDS; URANIUM OXIDES; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
11 refs., 29 figs., 9 tabs., 1 appendix