CFD Analysis of the Primary Cooling System for the Small Modular Natural Circulation Lead Cooled Fast Reactor SNRLFR-100

Table 1

Main design parameters of SNCLFR-100.

Design parameters	Values or characteristics
Thermal power (MWt)	100
Fission fuel	MOX
Refueling interval (years)	10
Plant design lifetime (years)	30
Primary coolant	Lead
Primary heat transport system	Compact pool type
Core configuration	Closed square array
Cladding	T91
Primary normal cooling model	Fully natural circulation
Core inlet/outlet temperature (°C)	400/480
Core coolant flow (kg/s)	8528
Secondary normal cooling model	Water/steam forced circulation
Abnormal decay heat removal	Reactor vessel auxiliary cooling system
Secondary coolant mass flow (kg/s)	18.0
Secondary coolant inlet/outlet temperature (°C)	345/430
Steam generators	4 modules of straight shell-tube type
Secondary water/steam cycle	Rankine cycle with superheated steam
Main vessel height (m)	8.8
Main vessel diameter (m)	5.6