Assessment of radiological safety and emergency response of VVER-1200 type reactor

Enhancing Resilience through Nuclear Emergency Preparedness at El Dabaa Site

“…Tis divergence arises from the diferent initial conditions including average burn up, primary coolant mass, and steam generator water mass in addition the availability of the spray system. In a prior study by Shiuli et al [30], which considered LOCA concurrent with SBO, the activity of I-131 was noted as 1.6E + 15 Bq, and for Cs-137, it was 2.6E + 15 Bq. Conversely, for the LOCA scenario without ECCS in this current study, the activities were found to be lower at 3.1E + 13 Bq for I-131 and 4.0E + 12 Bq for Cs-137.…”

“…Conversely, for the LOCA scenario without ECCS in this current study, the activities were found to be lower at 3.1E + 13 Bq for I-131 and 4.0E + 12 Bq for Cs-137. Tis disparity in activity levels between the two scenarios can be attributed to the difering accident severities, with Shiuli et al's study [30] indicating a more severe accident due to the absence of AC power.…”

“…Furthermore, Faisal et al [29] investigated a VVER-1200 reactor's station blackout (SBO) incident using RASCAL. Lastly, Shiuli et al [30] undertook a VVER-1200 radiological safety analysis using RASCAL and HOTSPOT codes. Tey examined reactor accidents at diferent international nuclear event scale (INES) levels (5, 6, and 7) due to SBO and loss of LOCA incidents, analyzing emergency response at the Rooppur site during both dry and rainy seasons.…”