Science and Technology of Nuclear Installations / 2021 / Article / Tab 1 / Research Article
Benchmark Analysis on Loss-of-Flow-without-Scram Test of FFTF Using Refined SAC-3D Models Table 1 Initial conditions of FFTF LOFWOS test #13 [
4 ].
Parameter Units Value Power MWt 199.2 Core inlet temperature K 590.4 Flow through all assemblies kg/s 1988.42 Shield flow rate kg/s 56.32 Leakage and bypass flow rate kg/s 157.49 GEM sodium level1 cm 221.6 ā ā Loop 1 Loop 2 Loop 3 Primary pump speed rpm 953.1 951.5 944.4 Primary loop flow rate kg/s 736.91 735.68 729.65 Secondary pump speed rpm 858.2 861 851.5 Secondary loop flow rate kg/s 735.18 737.59 729.47 Average DHX Na outlet temperature K 575.8 572.6 575.4 Secondary cold leg temperature2 K 570.7 569.8 570.9
1 Elevation relative to the top of inlet nozzle holes.2 Initial DHX outlet temperatures were higher than secondary cold leg temperatures, likely due to uncertainties and the location of the thermocouples within the DHX.