Post-test simulations of BTF-107: an in-reactor loss-of-coolant test with flow blockage and rewet

The blowdown Test Facility (BTF) located in the NRU reactor at Chalk River Laboratories is the principal experimental tool for the Canadian in-reactor safety research program (1). This dedicated facility was designed for performing integrated ″all effects″ tests on CANDU-type fuel to generate data for verifying and assessing Canadian safety analysis codes and models. This paper briefly describes the first BTF experiment, designated BTF-107 (2) and presents the results of post-test thermal hydraulics and fuel behavior simulations of this experiment.