A Fuel Cooling Basis for Critical Safety Parameter Training

Abstract

The XTEND package was developed in order to provide a user-friendly flexible training tool for the analysis of trip parameter effectiveness. The system is referred to as a micro-simulator, in that it allows the user to simulate accident situations on a micro-computer platform. A range of models allowing XTEND to simulate a wide variety of accident scenarios is under development. The XTEND modelling methodology is outlined, using the loss of reactivity control scenario (LORC) as an example, and sample results are provided. XTEND is shown to be useful in trip analysis and sensitivity analysis. XTEND has been utilized in a classroom training exercise at Darlington NGS, and this is detailed.