A method is incorporated which calculates the negative inverse of the diagonal elements of the Jacobian matrix as more » the characteristic times for the 489 state variables modeling the entire system, and compares them with the preset integration timestep.
The mathematical model includes: point reactor kinetics, reactivity feedback, and reactor power control primary, secondary, and tertiary thermal and coolant dynamics governed by forced and natural circulation and plant protection and control systems. The model is capable of simulating operational transients, anticipated incidents, postulated accidents which do not disturb the system geometry, and a major pipe rupture accident in the primary heat transport system.
A digital computer simulation model for the dynamic analysis of multiloop liquid-metal-cooled fast breeder reactor plants is developed.