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Evaluation of the PBF LOFT lead rod test results concerning surface thermocouple perturbation effects

Technical Report ·
DOI:https://doi.org/10.2172/5603747· OSTI ID:5603747

The purpose of the PBF LOFT Lead Rod (LLR) Test program was to provide experimental data to characterize the mechanical behavior of LOFT type nuclear fuel rods under loss of coolant accident (LOCA) conditions, simulating the test conditions expected for the LOFT Power Ascension (L2) Test series. Although the LLR tests were not explicitly designed to evaluate cladding surface thermocouple perturbation effects, comparison of the Linear Variable Differential Transformer (LVDT) data for rods instrumented with and without cladding thermocouples provided pertinent information concerning the effects of cladding thermocouples on the time to DNB and time to quench data. Documentation and review of this data is presented.

Research Organization:
EG and G Idaho, Inc., Idaho Falls (USA)
DOE Contract Number:
EY-76-C-07-1570
OSTI ID:
5603747
Report Number(s):
EGG/LTR-LO-00-79-108
Country of Publication:
United States
Language:
English