Full-Scale Emergency Simulations

The collaboration is still going on. The full-loop, 3D simulations of MIP reactors are being performed to help further scale-up. To some extent, the multi-scale CFD is beginning to take the place of virtual experiment for solving industrial problems, and it is emerging as a paradigm beneficial to both industry and academia. 

For facilities and communities just beginning to test their plans, desktop or simulated drills are effective for identifying procedural problems that need to be corrected before they proceed to full-scale drills. In these simulations, staffing of the appropriate emergency center would occur, but the emergency service groups would not actually mobilize at the scene of the incident. 

Full scale operational tests on the existing primary circuit thermal insulation were performed at the Zaporozhe NPP Unit 5 and the South Ukraine NPP Unit 3, with a simulated LOCA condition of diameter 300 mm break and 8 m thermal insulation material dispersed in the water at steam-water mixture discharge conditions. The tests lasted 8 hours. Based on the test results, compensatory measures will be implemented, and an emergency operating procedure has been prepared. A modified design of the filters inside the sump has been implemented at all operating plants. 

---