This webinar demonstrates how Flownex can be used to model, analyse, and optimise supercritical CO₂ (sCO₂) power cycles throughout the design process. It covers cycle configuration evaluation, component sizing, transient analysis, control system development, and balance-of-plant integration using Flownex’s thermal-fluid simulation capabilities. Examples show how engineers can compare cycle layouts, perform parametric studies, optimise heat exchanger sizing, and evaluate control strategies during plant trips and load changes. The webinar also highlights Flownex features such as transient simulation, adaptive time stepping, integrated control libraries, API automation, and coupling with external software. Overall, it illustrates how Flownex helps engineers develop efficient, reliable, and optimised sCO₂ systems while reducing design time and engineering effort.