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Irradiation of Superheater Test Fuel Elements in the Steam Loop of the R2 Reactor

Abstract

The design, fabrication, irradiation results, and post-irradiation examination for three superheater test fuel elements are described. During the spring of 1966 these clusters, each consisting of six fuel rods, were successfully exposed in the superheater loop No. 5 in the R2 reactor for a maximum of 24 days at a maximum outer cladding surface temperature of {approx} 650 deg C. During irradiation the linear heat rating of the rods was in the range 400-535 W/cm. The diameter of the UO{sub 2} pellets was 11.5 and 13.0 mm; the wall thickness of the 20/25 Nb and 20/35 cladding was in every case 0.4 mm. The diametrical gap between fuel and cladding was one of the main parameters and was chosen to be 0.05, 0.07 and 0.10 mm. These experiments, to be followed by one high cladding temperature irradiation ({approx} 750 deg C) and one long time irradiation ({approx} 6000 MWd/tU), were carried out to demonstrate the operational capability of short superheater test fuel rods at steady and transient operational environments for the Marviken superheater fuel elements and also to provide confirmation of design criteria for the same fuel elements.
Authors:
Publication Date:
Dec 15, 1967
Product Type:
Technical Report
Report Number:
AE-308
Resource Relation:
Other Information: 49 refs., 68 figs., 12 tabs.
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; R-2 REACTOR; SUPERHEATERS; FUEL ELEMENTS; DESIGN; MARVIKEN REACTOR
OSTI ID:
20956288
Research Organizations:
AB Atomenergi, Nykoeping (Sweden)
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
TRN: SE0708722
Availability:
Commercial reproduction prohibited; OSTI as DE20956288
Submitting Site:
SWDN
Size:
118 pages
Announcement Date:
Dec 29, 2007

Citation Formats

Ravndal, F. Irradiation of Superheater Test Fuel Elements in the Steam Loop of the R2 Reactor. Sweden: N. p., 1967. Web.
Ravndal, F. Irradiation of Superheater Test Fuel Elements in the Steam Loop of the R2 Reactor. Sweden.
Ravndal, F. 1967. "Irradiation of Superheater Test Fuel Elements in the Steam Loop of the R2 Reactor." Sweden.
@misc{etde_20956288,
title = {Irradiation of Superheater Test Fuel Elements in the Steam Loop of the R2 Reactor}
author = {Ravndal, F}
abstractNote = {The design, fabrication, irradiation results, and post-irradiation examination for three superheater test fuel elements are described. During the spring of 1966 these clusters, each consisting of six fuel rods, were successfully exposed in the superheater loop No. 5 in the R2 reactor for a maximum of 24 days at a maximum outer cladding surface temperature of {approx} 650 deg C. During irradiation the linear heat rating of the rods was in the range 400-535 W/cm. The diameter of the UO{sub 2} pellets was 11.5 and 13.0 mm; the wall thickness of the 20/25 Nb and 20/35 cladding was in every case 0.4 mm. The diametrical gap between fuel and cladding was one of the main parameters and was chosen to be 0.05, 0.07 and 0.10 mm. These experiments, to be followed by one high cladding temperature irradiation ({approx} 750 deg C) and one long time irradiation ({approx} 6000 MWd/tU), were carried out to demonstrate the operational capability of short superheater test fuel rods at steady and transient operational environments for the Marviken superheater fuel elements and also to provide confirmation of design criteria for the same fuel elements.}
place = {Sweden}
year = {1967}
month = {Dec}
}