The paper presents the modeling of the Test Facility ROSA-2/LSTF in the calculation code CATHARE . OECD/NEA ROSA-2 Project Test 7 was conducted with the Large Scale Test Facility on June 14, 2012. The experiment simulated the thermal-hydraulic responses during a PWR 13% cold leg Intermediate Break Loss Of Coolant Accident (IBLOCA). | Comparison of CATHARE results with the experimental results of cold leg intermediate break LOCA obtained during ROSA-2 LSTF test 7 EPJ Nuclear Sci. Technol. 2 1 2016 Nuclear Sciences P. Mazgaj et al. published by EDP Sciences 2016 amp Technologies DOI epjn e2015-50020-7 Available online at http REGULAR ARTICLE Comparison of CATHARE results with the experimental results of cold leg intermediate break LOCA obtained during ROSA-2 LSTF test 7 Piotr Mazgaj1 2 Jean-Luc Vacher1 and Sofia Carnevali3 1 EDF SEPTEN 12-14 avenue Dutriévoz 69628 Villeurbanne France 2 Institute of Heat Engineering Warsaw University of Technology 21 25 Nowowiejska 00-665 Warsaw Poland 3 CEA-Saclay DEN DM2S STMF 91191 Gif-sur-Yvette France Received 5 May 2015 Received in final form 15 November 2015 Accepted 24 November 2015 Published online 11 January 2016 Abstract. Thermal-hydraulic analysis is a key part in support of regulatory work and nuclear power plant design and operation. In the field of Loss Of Coolant Accident evolutions of the regulations are discussed in various countries taking into account the very unlikely character of a double-ended guillotine break and questioning the necessity to study such an event with Design Basis Conditions assumptions. As a consequence the consideration of intermediate size piping rupture becomes more and more important. The paper presents the modeling of the Test Facility ROSA-2 LSTF in the calculation code CATHARE . OECD NEA ROSA-2 Project Test 7 was conducted with the Large Scale Test Facility on June 14 2012. The experiment simulated the thermal- hydraulic responses during a PWR 13 cold leg Intermediate Break Loss Of Coolant Accident IBLOCA . The break was simulated by a cold leg upwardly mounted long break nozzle. The facility and the experiment conditions are modeled in CATHARE. The vessel is modeled by using a 3D module. A thermal-hydraulic analysis is conducted and the obtained results are subsequently compared with the .
