Core Flow Distribution from Coupled Supercritical Water Reactor Analysis

Table 1

SCWR nominal design parameters (Buongiorno et al., 2003 [3]).

Fuel pin		Core
Fuel material	UO2	Thermal power	3575 MW
Fissile enrichment	5%	Number of fuel assemblies	148
Fuel radius	0.436 cm	Active height	4.27 m
Cladding material	Stainless steel	Effective diameter	3.93 m
Cladding thickness	0.063 cm	Volumetric power density	69 MW/m^3
Fuel pitch	1.12 cm	Average linear heat rate	19.2 kW/m
P/D	1.12
Fuel assembly		Thermal-hydraulic parameters
Number of fuel rods	300	System pressure	25 MPa
Number of water rods	36	Coolant flow rate	1843 kg/s
Number of control rods	16	Moderator bypass, 𝛽	10% (184 kg/s)
Assembly pitch	28.6 cm	Inlet temperature	280°C
Water rod width	3.36 cm	Outlet temperature	500°C
Water rod wall thickness	0.04 cm	Thermal efficiency	44.80%