The development of accurate real-time simulation program for reactor

This paper takes the reactor of Fuqing phase I nuclear power plant as the research object, applies REMARK program to simulate the reactor core physics, applies the THEATRe program to simulate the thermo-hydraulic process in the pressure vessel, applies COBRAIIIC program to the calculation of thermo-hydraulic of core channel, and then couples the three kinds of simulation programs in the GSE SimExec real-time simulation platform. COBRAIIIC program is a sub-channel analysis program, which can perform more detailed calculations on the reactor core, and its calculation speed is fast. It can also be transplanted to SimExec simulation platform to realize real-time simulation calculation. The actual calculation proves that the coupling simulation program can accurately calculate the core state parameters, achieve the simulation calculation effect on the personal computer, and accelerate the operation up to 5 times. (authors)