Modeling of Condensation or Evaporation Transients in the PHEAS and PHEBUS FP Containment Vessels

Abstract

This paper deals with the assessment of the condensation models (Collier and Chilton-Colburn) and condensation correlations (Uchida and Tagami) implemented in the Jericho code (Escadre System) against three steam condensation transients performed in the Piteas Test Facility. namely SL-JI PIP A 1, A2 and A3. The main purpose is to check the validity of these correlations and models in a condensation transient situation. We analyse the main characteristics of the scenarios of the condensation transients tests SUMPIP A1, A2 and A3 and the experimental results obtained. In order to enhance the predictive capability of the Jericho code, an assessment of condensation models is presented and discussed based on comparisons between Jericho numerical simulations and experimental results. Simply based on the containment mass conservation equation, an analytic modeling is introduced which leads to the calibration of a correlation of the Tagami-Uchida type valid for condensation transient situations.