Nodalization study for BETHSY experiment Conference Paper uri icon


  • The BETHSY experiment 9.1.b was used to assess different versions of the RELAP5 computer code using three various detailed nodalizations. This experimental transient scenario involved a scaled 2 inches cold leg break without high pressure safety injection and with delayed operator action for a secondary system depressurization. In order to optimize details of nodalization in regard to satisfactory accuracy a detailed study of different RELAP5 codes and nodalization was performed. Qualitative evolution of RELAP5 code was also analyzed.

author list (cited authors)

  • Petelin, S., Mavko, B., Ravnikar, I., Cebull, P., & Hassan, Y. A.

publication date

  • December 1996