GCFR Coupled Neutronic and Thermal-Fluid-Dynamics Analyses for a Core Containing Minor Actinides

Table 2

Point Neutron Kinetics (NK) core parameters (with and without MA)

Parameters	Imposed power	Reference core (point NK values)	Reference core + MA (point NK values)
Reactor power	50 MW	50.02 MW	50.02 MW
Total system flow rate	32.10 Kg/s	32.13 Kg/s	32.11 Kg/s
Flow rate in hot channel	0.581 Kg/s	0.581 Kg/s	0.581 Kg/s
Flow rate in average channel	0.595 Kg/s	0.595 Kg/s	0.595 Kg/s
Reactor pressure at top of vessel	6.92 MPa	6.924 MPa	6.92 MPa
Reactor mass of coolant without DHR	389.75 Kg	389.75 Kg	389.75 Kg
Reactor mass of coolant with DHR	473.54 Kg	473.54 Kg	473.54 Kg
Core inlet temperature	263.9 0𝑥02103	263.1 0𝑥02103	262.8 0𝑥02103
Core average exit temperature	563.7 0𝑥02103	564.5 0𝑥02103	564.6 0𝑥02103
Coolant temp rise in the core	299.8 0𝑥02103	300.5 0𝑥02103	299.3 0𝑥02103
Exit coolant temp in hot channel	615.6 0𝑥02103	616.5 0𝑥02103	616.6 0𝑥02103
Exit coolant temp in avg. Channel	562.7 0𝑥02103	563.5 0𝑥02103	563.6 0𝑥02103
Max clad temp in hot channel	687.6 0𝑥02103	693.5 0𝑥02103	691.7 0𝑥02103
Max clad temp in avg. channel	621.2 0𝑥02103	626.5 0𝑥02103	624.9 0𝑥02103
Max fuel temp in hot channel	1069.5 0𝑥02103	1073.9 0𝑥02103	1070.4 0𝑥02103
Max fuel temp in avg. channel	946.0 0𝑥02103	949.9 0𝑥02103	946.8 0𝑥02103
Main blower speed	523.6 rad/s	523.6 rad/s	523.6 rad/s
Main blower rated head	8007.8 m^2/s^2	8321 m^2/s^2	8319 m^2/s^2
Main blower rated torque	2009.1 Pa⋅m^3	2024.2  Pa⋅m^3	2024.5 Pa⋅m^3
MHX heat transfer area	157.3 m^2	157.3 m^2	157.3 m^2