Abstract
In this study, a transient performance simulation model of an indirect helium turbine cycle system is developed. One-dimension models are built to simulate the components, including helium turbine model, compressor model, heat exchanger model, valve model, duct model and shaft rotation model. The simulation code is established on MATLAB and the ordinary differential equations derived from component model are solved by the ode15s solvers of MATLAB. The accident of loss of load and the transient of decreasing heat transfer capacity of intermediate heat exchanger by 5% are simulated and analyzed. The analysis of calculated results validates the present model.
