Published 2001 | Version v1
Miscellaneous Open

Influence of FGR complexity modelling on the practical results in gas pressure calculation of selected fuel elements from Dukovany NPP

Creators

  • 1. NRI Rez plc, Reactor Technology Department, Rez (Czech Republic)

Description

A modernization fuel system and advanced fuel for operation up to the high burnup are used in present time in Dukovany NPP. Reloading of the cores are evaluated using computer codes for thermomechanical behavior of the most loaded fuel rods. The paper presents results of parametric calculations performed by the NRI Rez integral code PIN, version 2000 (PIN2k) to assess influence of fission gas release modelling complexity on achieved results. The representative Dukovany NPP fuel rod irradiation history data are used and two cases of fuel parameter variables (soft and hard) are chosen for the comparison. Involved FGR models where the GASREL diffusion model developed in the NRI Rez plc and standard Weisman model that is recommended in the previous version of the PIN integral code. FGR calculation by PIN2k with GASREL model represents more realistic results than standard Weisman's model. Results for linear power, fuel centre temperature, FGR and gas pressure versus burnup are given for two fuel rods

Availability note (English)

Available from INIS in electronic form

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Additional details

Publishing Information

Imprint Pagination
4 p.
Report number
INIS-BG--0483

Conference

Title
International conference on WWER fuel performance, modelling and experimental support
Dates
1-5 Oct 2001
Place
Varna (Bulgaria)

INIS

Country of Publication
Bulgaria
Country of Input or Organization
Bulgaria
INIS RN
33070733
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BURNUP; CALCULATION METHODS; DUKOVANY-1 REACTOR; DUKOVANY-2 REACTOR; DUKOVANY-3 REACTOR; DUKOVANY-4 REACTOR; FUEL RODS; M CODES; P CODES; PERFORMANCE
Descriptors DEC
COMPUTER CODES; ENRICHED URANIUM REACTORS; FUEL ELEMENTS; POWER REACTORS; PWR TYPE REACTORS; REACTOR COMPONENTS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; WWER TYPE REACTORS

Optional Information

Notes
1 tab., 6 figs., 5 refs.