The document deals with the description of results obtained by the Relap5 code in the planning of the Counterpart Test (CT) SP-SB-04 to be performed in the Pressurized Water Reactor (PWR) experimental simulator SPES installed at the Piacenza SIET Research Center in Italy. The Relap5 is the well-known computer code developed at Idaho National Laboratory in US: the code is in use at UNIPI since more than a decade. The SPES loop is an Integral Test Facility (ITF) simulating with full height, full pressure, full linear power a US type 3-loop Westinghouse PWR. The concerned test is the high power CT of the SPES test SP-SB-03 which was the CT of experiments performed in LOBI, BETHSY and LSTF ITF. Because of the maximum power limitations of BETHSY and LSTF, the test SP-SB-03 was performed starting from a ‘low power condition’ (about 20% nominal power): thus, the initial 10-50 seconds of the experiments were ‘highly’ distorted with respect to the test scenario expected in the reference Nuclear Power Plant (NPP), the prototype. Therefore a new test was performed (in the same way in LOBI ITF, CT BL34 and Bl-44, low and high power test were performed) and called SP-SB-o4. The present document discusses the procedure to arrive at the final design of the SPES experiment.
Planning of the SPES experiment SP-SB-04 high power counterpart to SP-SB-03
D'Auria F.
Primo
Conceptualization
;
1991-01-01
Abstract
The document deals with the description of results obtained by the Relap5 code in the planning of the Counterpart Test (CT) SP-SB-04 to be performed in the Pressurized Water Reactor (PWR) experimental simulator SPES installed at the Piacenza SIET Research Center in Italy. The Relap5 is the well-known computer code developed at Idaho National Laboratory in US: the code is in use at UNIPI since more than a decade. The SPES loop is an Integral Test Facility (ITF) simulating with full height, full pressure, full linear power a US type 3-loop Westinghouse PWR. The concerned test is the high power CT of the SPES test SP-SB-03 which was the CT of experiments performed in LOBI, BETHSY and LSTF ITF. Because of the maximum power limitations of BETHSY and LSTF, the test SP-SB-03 was performed starting from a ‘low power condition’ (about 20% nominal power): thus, the initial 10-50 seconds of the experiments were ‘highly’ distorted with respect to the test scenario expected in the reference Nuclear Power Plant (NPP), the prototype. Therefore a new test was performed (in the same way in LOBI ITF, CT BL34 and Bl-44, low and high power test were performed) and called SP-SB-o4. The present document discusses the procedure to arrive at the final design of the SPES experiment.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
