Experiment Data Report for Semiscale MOD-1Test S-01-2 (Isothermal Blowdown with Core Resistance Simulator).

摘要

Recorded test data are presented for Test S-01-2of the semi-scale Mod-1isothermal blowdown test series. Test S-01-2is one of several semiscale Mod-1experiments which are counterparts of the LOFT nonnuclear experiments. System hardware is of the LOFT design selected using volumetric scaling methods,and initial conditions duplicate those identified for LOFT. Test S-01-2employed an intact loop resistance that was high relative to that of other tests in the series to establish the importance of intact loop resistance on system response during blowdown. An orificed structure was used in the pressure vessel to duplicate the LOFT core simulator. The test was initiated at initial isothermal conditions of 2230psig and 538exp 0 F by a simulated offset shear of the cold leg broken loop piping. After system depressurization,coolant was injected into the cold leg of the operating loop to investigate the hot wall effect on ECC delivery to the lower plenum. The purpose of this report is to make available the uninterpreted data from Test S-01-2and to provide the reference material needed for future data analysis and test results reporting activities. The data,presented in the form of graphs in engineering units,have been analyzed only to the extent necessary to assure that they are reasonable and consistent.