Author(s)

L.E. Herranz & C.L. del Prá

Abstract

The containment building constitutes the last protection barrier of a nuclear power plant to the environment. The thermal performance is a key factor to ensure its integrity and therefore to prevent any potential release of radioactivity to the environment. In this paper a simulation of heat transfer during the FPT1 test of the PHEBUS-FP project with the CONTAIN 2.0 code is presented. Experimental boundary conditions resulted in a condensing and unsaturated atmosphere where temperature, pressure and relative humidity changed along time. The CONTAIN 2.0 code provided a reasonable agreement with measurements in all the thermal variables. However, a cross-comparison of steam pressure and condensation rate highlighted a potential inconsistency in the specifications of steam input rate. As a consequenc

Keywords