A Tool for Ariant Input Model Conversion into Network Nodalization Diagram

Abstract

ARIANT (AlgoRIthm for Analysis of Network Thermalhydraulics) is a Canadian Nuclear Laboratories (CNL) newly developed state-of-the-art, one-dimensional system-level code. It is intended for general modelling and analysis of two-phase, non-equilibrium flows and heat transfer for PHWR, light-water reactors, SMRs and advanced reactor applications. A modelling tool is being developed to help create ARIANT models on a user-friendly Graphic User Interface (GUI). The tool uses nodalization configuration represented by a series of components, connections, system models (such as valves, pumps, orifices, and separators), wall heat transfer models, and system control models. This paper focuses on the tool functionality that allows the user to quickly convert text-based ARIANT models (input decks) into network nodalization diagrams and demonstrates its applications. While not described in detail in this paper, this tool can also be used to convert network nodalization diagrams into ARIANT input decks.