A research activity started at the end of 80’s was substantiated within the context of the participation of the TMI-1 (Three Mile –Unit 1) Benchmark in 1998. A coupled thermal-hydraulic neutron physics code was developed. This was used for the Boiling Water Turbine Trip experiment planned and executed in the Peach Bottom Nuclear Power Plant (NPP) in the USA. The test was originated by the quick closing of the turbine inlet valve, followed by the quick opening of the condenser bypass line and, in the core region, by the arrival of a pressure wave. The pressure wave cause void collapse and increase of fission core power for a factor 5 in a few seconds after the turbine trip. The overall scenario was successfully reproduced by the coupled Relap5/Parcs code.
Analysis of the Peach Bottom 2 BWR Turbine Trip experiment by coupled Relap5/mod3.3 Parcs V2.2 Code
D'Auria F.
Penultimo
Conceptualization
;
2002-01-01
Abstract
A research activity started at the end of 80’s was substantiated within the context of the participation of the TMI-1 (Three Mile –Unit 1) Benchmark in 1998. A coupled thermal-hydraulic neutron physics code was developed. This was used for the Boiling Water Turbine Trip experiment planned and executed in the Peach Bottom Nuclear Power Plant (NPP) in the USA. The test was originated by the quick closing of the turbine inlet valve, followed by the quick opening of the condenser bypass line and, in the core region, by the arrival of a pressure wave. The pressure wave cause void collapse and increase of fission core power for a factor 5 in a few seconds after the turbine trip. The overall scenario was successfully reproduced by the coupled Relap5/Parcs code.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
