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142 Managing Global Warming

Table 4.2 Continued
Parameter Value
Annual average length of scheduled shutdowns (for refuelling, scheduled 16–40
maintenance work) (days per year)
Refueling length (days per year) 16
Number of not scheduled reactor shutdowns per year 1
Frequency of severe core damage per year <10 6
Frequency of limiting emergency release per year <10 7
Efficient time of passive safety and emergency control system operation 24
without operator’s action and power supply (h)
OBE/SSE, magnitude of MSK-64 scale 6 and 7
Compliance with EUR requirements (yes/no) Yes
RP main stationary equipment is designed for SSE of magnitude 8

(Based on data from Ryzhov SB, Mokhov VA, Nikitenko MP, et al. Advanced designs of VVER reactor plant, In:
Proceedings of the 8th International topical meeting on nuclear thermal-hydraulics, operation and safety (NUTHOS-8),
Shanghai, China, October 10–14; 2010.

Table 4.3 Additional typical parameters of latest
VVER-1000 series 300 and 400 (for basic
parameters, see Table 4.2) [1]
Parameter Value
Pressure vessel ID (m) 4.14
RPV wall thickness (m) 0.19
RPV height without cover (m) 10.9
Core equivalent diameter (m) 3.12
Core height (m) 3.56
3
Volumetric heat flux (MWm ) 110
3
1
Average volumetric flow rate in assembly (m h ) 515 55
No. of fuel assemblies 163
No of rods per assembly 317
Fuel mass, ton of UO 2 80
Part of fuel reloaded during year 1/3
Fuel UO 2
Fuel enrichment (%) 4