Analysis of two small break loss-of-coolant experiments in the BETHSY facility using RELAP5/MOD3 [report]

P.A. Roth, R.R. Schultz, C.J. Choi
1992 unpublished
r"., , _ • NOTICE Thisr_pon wasprepared u an account ofworksponsored by anagency ofthe United States Oovermnem. Neither the United States Government nor any agency_tereof, or anyof their employees, makesany wm'ranty, expressed or implied, or assumes any legal liability or responsibili_ for any thhd party'su.,_, or the results of such use. of any infommtion, apparatus,product or process disclosed in this report, or represents that its use by such third psny would not infringe privately owned
more » ... privately owned rights. The views expressed m this re_ort m'e not n_ess4uily those of the U.S. NuclearRegulatoryCowd'nission. "-B ABSTRACT 7 Small break loss-of-coOlantaccident (SBLOCA) data were recorded : during tests 9.1b and 6.2 TC in the Boucle d'Etudes THermohydrouliques SYsteme (BETHSY) facility at the Centre d'Etudes Nucleares de Grenoble (CENG)complex in Grenoble,France. The data from test 9.1b form the basis for the InternationalStandard Problemnumber 27 (ISP-27). For each test the primary system depressurization,break flow rate, core heat-up, and effect of operatoractionswere analyzed. Basedon the test 9.1b/ISP-27and 6.2 TC data, an assessmentstudy of the RELAP5/MOD3version 7 code was performedwhich includeda studyof the above phenomenaalong with countercurrent flow limitation and vapor pull-through. The code provided a reasonablesimulationof the various phenomenawhich occurred during the tests. iii plllIl' 'll II lqr i iplll Pl m, inrl " llllr " u R"+"ll, ii 11 ,
doi:10.2172/10172846 fatcat:smgzlhmvf5hgfnqyvtgpwvupnq