Core-Concrete Interactions Using Molten Urania with Zirconium on a Limestone Concrete Basemat. The SURC-1 Experiment

摘要

An inductively heated experiment, SURC-1, was executed as part of the Integral Core-Concrete Interactions Experiments Program. The purpose of the experiment was to measure and assess the variety of source terms produced during core debris/concrete interactions. These source terms include thermal energy released to both the reactor basemat and the containment environment, as well as flammable gas, condensable vapor and toxic or radioactive aerosols generated during the course of a severe reactor accident. The SURC-1 experiment used 204 kg of prototypic UO2-ZrO2 materials to study the interactions between core debris and a limestone basement. The experiment eroded 27 cm of concrete during 130 minutes of sustained interaction at temperatures which ranged from 2650 to 2200 K. Comprehensive gas flow rate, gas compositions, and aerosol release rates from the interaction were also measured.