Software Verification for Techno-Economic Simulation of Nuclear Energy Systems: Results and Recommendations

The results of a computational analysis of tests performed in verification of software tools for technical and economic modeling of nuclear power systems are presented. Each of four software tools contains models that describe material flows, the structure and dynamics of changes in the installed capacity of a nuclear power system, and assumptions about the management of irradiated nuclear fuel and secondary fissile materials. The models developed allow calculating material indicators, including material flows and demand for fuel cycle services, as well as economic indicators. The results of an analysis of computational discrepancies are presented and possible reasons for them are discussed.