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Title: Extended overpower transient testing of LMFBR oxide pins in EBR-II

Conference ·
OSTI ID:5900376

As part of a joint effort between the Power Reactor and Nuclear Fuel Development Corporation of Japan and the US Department of Energy, a series of five extended slow overpower transient tests are being conducted in the Experimental Breeder Reactor-II (EBR-II) on preirradiated mixed oxide fuel and blanket pins. In the first two tests conducted in the series, fuel and blanket pins were subjected to a 0.1%/s power ramp to approx. 60% overpower before the transient termination. None of the test pins breached during the transient. A significant cladding breaching margin over the normal PPS trip setting of approx. 12 to 15% was thus demonstrated for the 0.1%/s ramp. The transient-induced pin cladding strains, caused principally by fuel-cladding mechanical interaction, were small but measurable.

Research Organization:
Argonne National Lab., IL (USA); Power Reactor and Nuclear Fuel Development Corp., Tokyo (Japan)
DOE Contract Number:
W-31-109-ENG-38
OSTI ID:
5900376
Report Number(s):
CONF-850398-2; ON: DE85006126; TRN: 85-006285
Resource Relation:
Conference: British Nuclear Energy Society nuclear fuel performance meeting, Stratford-on-Avon, UK, 25 Mar 1985
Country of Publication:
United States
Language:
English