Study of Fast Transient Pressure Drop in VVER-1000 Nuclear Reactor Using Acoustic Phenomenon

Table 1

VVER-1000 geometry and operating conditions [18].

Operating condition	Value
Core height in the working state (cm)	355
Rod diameter (mm)	9.1
Pitch (mm)	12.75
Fuel pellet material	UO2
Number of fuel rods in the fuel assembly	311
Average linear heat rate (W/cm)	166.7
Coolant flow rate (m^3/h)	84800
Inlet pressure (MPa)	16
Outlet pressure (MPa)	15.70
Temperature at the inlet (°C)	291