R--Plant Model Development for Sequoyah Nuclear Plant

The U.S. Nuclear Regulatory Commission (NRC) is seeking a contractor to develop a plant model for the Sequoyah Nuclear Power Plant using the TRAC/RELAP Advanced Computational Engine (TRACE) and Purdue Advanced Reactor Core Simulator (PARCS). The contractor will use USNRC's process for integrating thermal-hydraulic data, PARCS code data, and fuel-performance data from the Fuel Analysis under Steady-state and Transients (FAST) code to facilitate and perform coupled TRACE/PARCS transient simulations for the Sequoyah TRACE model. The period of performance will be approximately 10 months, commencing around June/July 2026. • The contractor shall obtain plant-specific core-design information or suitable surrogate information for the development of a Sequoyah core. • The contractor shall use USNRC's process for integrating thermal-hydraulic data, PARCS code data, and fuel-performance data from the FAST code. • The contractor shall perform coupled TRACE/PARCS transient simulations for the Sequoyah TRACE model. • The NAICS code for the services required is 541990, "All Other Professional, Scientific, and Technical Services."