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Material test reactor fuel research at the BR2 reactor

Abstract

The construction of new, high performance material test reactor or the conversion of such reactors' core from high enriched uranium (HEU) to low enriched uranium (LEU) based fuel requires several fuel qualification steps. For the conversion of high performance reactors, high density dispersion or monolithic fuel types are being developed. The Uranium-Molybdenum fuel system has been selected as reference system for the qualification of LEU fuels. For reactors with lower performance characteristics, or as medium enriched fuel for high performance reactors, uranium silicide dispersion fuel is applied. However, on the longer term, the U-Mo based fuel types may offer a more efficient fuel alternative and-or an easier back-end solution with respect to the silicide based fuels. At the BR2 reactor of the Belgian nuclear research center, SCK-CEN in Mol, several types of fuel testing opportunities are present to contribute to such qualification process. A generic validation test for a selected fuel system is the irradiation of flat plates with representative dimensions for a fuel element. By flexible positioning and core loading, bounding irradiation conditions for fuel elements can be performed in a standard device in the BR2. For fuel element designs with curved plates, the element fabrication method compatibility of  More>>
Authors:
Dyck, Steven Van; Koonen, Edgar; Berghe, Sven van den [1] 
  1. Institute for Nuclear Materials Science, SCK-CEN, Boeretang, Mol (Belgium)
Publication Date:
Mar 15, 2012
Product Type:
Conference
Report Number:
JAEA-Conf-2011-003
Resource Relation:
Conference: 4. international symposium on material testing reactors, Oarai, Ibaraki (Japan), 5-9 Dec 2011; Other Information: 5 refs., 7 figs.; Related Information: In: Proceedings of the 4th international symposium on material testing reactors| by Ishihara, Masahiro; Suzuki, Masahide (eds.) [Japan Atomic Energy Agency, Oarai Research and Development Center, Oarai, Ibaraki (Japan)]| 310 p.
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BR-2 REACTOR; DISPERSION NUCLEAR FUELS; EXPERIMENTAL CHANNELS; FUEL PLATES; IN PILE LOOPS; IRRADIATION; IRRADIATION DEVICES; URANIUM SILICIDES; URANIUM-MOLYBDENUM FUELS; VALIDATION
OSTI ID:
22078598
Research Organizations:
Japan Atomic Energy Agency, Tokai, Ibaraki (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
TRN: JP1250106037808
Availability:
Available from INIS in electronic form. Also available from JAEA; URL: http://jolissrch-inter.tokai-sc.jaea.go.jp/pdfdata/JAEA-Conf-2011-003.pdf
Submitting Site:
INIS
Size:
page(s) 75-81
Announcement Date:
Apr 01, 2013

Citation Formats

Dyck, Steven Van, Koonen, Edgar, and Berghe, Sven van den. Material test reactor fuel research at the BR2 reactor. Japan: N. p., 2012. Web.
Dyck, Steven Van, Koonen, Edgar, & Berghe, Sven van den. Material test reactor fuel research at the BR2 reactor. Japan.
Dyck, Steven Van, Koonen, Edgar, and Berghe, Sven van den. 2012. "Material test reactor fuel research at the BR2 reactor." Japan.
@misc{etde_22078598,
title = {Material test reactor fuel research at the BR2 reactor}
author = {Dyck, Steven Van, Koonen, Edgar, and Berghe, Sven van den}
abstractNote = {The construction of new, high performance material test reactor or the conversion of such reactors' core from high enriched uranium (HEU) to low enriched uranium (LEU) based fuel requires several fuel qualification steps. For the conversion of high performance reactors, high density dispersion or monolithic fuel types are being developed. The Uranium-Molybdenum fuel system has been selected as reference system for the qualification of LEU fuels. For reactors with lower performance characteristics, or as medium enriched fuel for high performance reactors, uranium silicide dispersion fuel is applied. However, on the longer term, the U-Mo based fuel types may offer a more efficient fuel alternative and-or an easier back-end solution with respect to the silicide based fuels. At the BR2 reactor of the Belgian nuclear research center, SCK-CEN in Mol, several types of fuel testing opportunities are present to contribute to such qualification process. A generic validation test for a selected fuel system is the irradiation of flat plates with representative dimensions for a fuel element. By flexible positioning and core loading, bounding irradiation conditions for fuel elements can be performed in a standard device in the BR2. For fuel element designs with curved plates, the element fabrication method compatibility of the fuel type can be addressed by incorporating a set of prototype fuel plates in a mixed driver fuel element of the BR2 reactor. These generic types of tests are performed directly in the primary coolant flow conditions of the BR2 reactor. The experiment control and interpretation is supported by detailed neutronic and thermal-hydraulic modeling of the experiments. Finally, the BR2 reactor offers the flexibility for irradiation of full size prototype fuel elements, as 200mm diameter irradiation channels are available. These channels allow the accommodation of various types of prototype fuel elements, eventually using a dedicated cooling loop to provide the required thermal and hydraulic conditions. The availability of a comprehensive set of post irradiation examination facilities on site complements the versatile BR2 reactor to provide a set of high performance tools for MTR fuel qualification. (author)}
place = {Japan}
year = {2012}
month = {Mar}
}