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Comparison of the ENIGMA code with experimental data on thermal performance, stable fission gas and iodine release at high burnup

Abstract

The predictions of the ENIGMA code have been compared with data from high burn-up fuel experiments from the Halden and RISO reactors. The experiments modelled were IFA-504 and IFA-558 from Halden and the test II-5 from the RISO power burnup test series. The code has well modelled the fuel thermal performance and has provided a good measure of iodine release from pre-interlinked fuel. After interlinkage the iodine predictions remain a good fit for one experiment, but there is significant overprediction for a second experiment (IFA-558). Stable fission gas release is also well modelled and the predictions are within the expected uncertainly band throughout the burn-up range. This report presents code predictions for stable fission gas release to 40GWd/tU, iodine release measurements to 50GWd/tU and thermal performance (fuel centre temperature) to 55GWd/tU. Fuel ratings of up to 38kW/m were modelled at the high burn-up levels. The code is shown to accurately or conservatively predict all these parameters. (author). 1 ref., 6 figs.
Authors:
Killeen, J C [1] 
  1. Nuclear Electric plc, Barnwood (United Kingdom)
Publication Date:
Aug 01, 1997
Product Type:
Technical Report
Report Number:
IAEA-TECDOC-957; CONF-9409411-
Reference Number:
SCA: 210400; PA: AIX-28:068601; EDB-97:129995; SN: 97001863137
Resource Relation:
Conference: IAEA technical committee meeting on water reactor fuel element modelling at high burnup and its experimental support, Windermere (United Kingdom), 19-23 Sep 1994; Other Information: PBD: Aug 1997; Related Information: Is Part Of Water reactor fuel element modelling at high burnup and its experimental support. Proceedings of a technical committee meeting; PB: 559 p.
Subject:
21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; BURNUP; E CODES; COMPARATIVE EVALUATIONS; EXPERIMENTAL DATA; FISSION PRODUCT RELEASE; HBWR REACTOR; IODINE; NUMERICAL DATA; THEORETICAL DATA; THERMAL CONDUCTION; THERMAL CONDUCTIVITY; VARIATIONS
OSTI ID:
534374
Research Organizations:
International Atomic Energy Agency, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1011-4289; Other: ON: DE98602336; TRN: XA9744805068601
Availability:
INIS; OSTI as DE98602336
Submitting Site:
INIS
Size:
pp. 277-287
Announcement Date:
Oct 31, 1997

Citation Formats

Killeen, J C. Comparison of the ENIGMA code with experimental data on thermal performance, stable fission gas and iodine release at high burnup. IAEA: N. p., 1997. Web.
Killeen, J C. Comparison of the ENIGMA code with experimental data on thermal performance, stable fission gas and iodine release at high burnup. IAEA.
Killeen, J C. 1997. "Comparison of the ENIGMA code with experimental data on thermal performance, stable fission gas and iodine release at high burnup." IAEA.
@misc{etde_534374,
title = {Comparison of the ENIGMA code with experimental data on thermal performance, stable fission gas and iodine release at high burnup}
author = {Killeen, J C}
abstractNote = {The predictions of the ENIGMA code have been compared with data from high burn-up fuel experiments from the Halden and RISO reactors. The experiments modelled were IFA-504 and IFA-558 from Halden and the test II-5 from the RISO power burnup test series. The code has well modelled the fuel thermal performance and has provided a good measure of iodine release from pre-interlinked fuel. After interlinkage the iodine predictions remain a good fit for one experiment, but there is significant overprediction for a second experiment (IFA-558). Stable fission gas release is also well modelled and the predictions are within the expected uncertainly band throughout the burn-up range. This report presents code predictions for stable fission gas release to 40GWd/tU, iodine release measurements to 50GWd/tU and thermal performance (fuel centre temperature) to 55GWd/tU. Fuel ratings of up to 38kW/m were modelled at the high burn-up levels. The code is shown to accurately or conservatively predict all these parameters. (author). 1 ref., 6 figs.}
place = {IAEA}
year = {1997}
month = {Aug}
}