An engineering simulator was developed for nuclear ship R&D. It was first applied to the experimental voyages of the first Japanese nuclear ship. This simulator analysis of the ship addressed the knowledge, training, and skill of the reactor operators regarding operation and control characteristics of the ship, as well as the research on related human-machine interactions. After this initial application, design study of advanced reactor for ships has been continued to realize lightweight, compact components and passive safety, and resulted in the engineering design of an integral reactor with a rated power of 100 MW. In this design, the steam generators and most components of the primary coolant system are installed within the reactor pressure vessel. The integral-reactor simulator was developed to study the control system design, plant operation characteristics, and dynamic behavior. For this purpose, the once-through steam generators, passive safety system, and water-filled reactor compartment had to be modeled in a real-time simulator. Figure 2-6 shows the advanced monitoring and controls display for operators, and Fig. 2-7 shows the startup and shutdown characteristics obtained from simulation analysis.
This simulator is expecting to be used for the development of completely automatic operational systems, for advanced human-machine system research, and especially for numerous applications of distributed small reactors. |
