Search Results

The second major upgrade to the Fluid Heat Transport System extension of the ESATAN thermal analyser culminated in significant improvements and extensions to its two-phase capabilities. The third upgrade is nearing conclusion, the emphasis of this work centring around the improvement of the Graphical User Interface and the validation of the numerical algorithms employed. An interactive environment for the creation of ESATAN thermal models has been developed, easing both creation and visualisation of the model hierarchy. To consolidate this facility the current FHTS Graphical User Interface has now been incorporated within the framework of this tool. Many new capabilities have also been added, most notably the ability to configure, manage and control all files required by an ESATAN model.

FHTS is a major extension to the existing ESATAN thermal analyser. It is capable of carrying out one dimensional steady state or transient analysis, solving for pressure, temperature and mass flow rate, for single or two phase loops. This paper begins by giving an overview of the capabilities of FHTS and outlines the stringent quality assurance standards adhered to during its development. The coding standards ensure software verification during its development via module testing and the development of a test suite. Further verification of both the single phase and two phase capability has already been carried out by comparison against Retran, a well established package used throughout the Nuclear Industry. An outline of the results from this work and conclusions drawn is given. Although limited in scope the work proved extremely valuable.