Supercritical CO₂ Brayton Cycle Design for Small Modular Reactor with a Thermodynamic Analysis Solver

Table 6

Optimal design for the water-cooled recompression Brayton cycle.

Cooling type	Water cooled	Dry cooled
Produced net power	40.38 MW	34.36 MW
Cycle thermal efficiency	40.38%	34.36%
Turbine mass flow rate	563.92 kg/s	616.22 kg/s
Recompression flow ratio	30%	20%
TIP/TIT	20 MPa/460°C	20 MPa/460°C
CIP/CIT	7.4 MPa/32°C	7.4 MPa/55°C
HTR UA	3360 kW/K	3240 kW/K
LTR UA	4640 kW/K	5760 kW/K
Inlet and outlet temperatures of high-pressure side of HTR	206.3°C/315.5°C	263.0°C/327.7°C
Inlet and outlet temperature of low-pressure side of HTR	346.5°C/222.1°C	346.5°C/275.0°C
HTR min_dt	15.7°C	12.0°C
Inlet and outlet temperatures of high-pressure side of LTR	94.0°C/207.0°C	142.9°C/262.8°C
Inlet and outlet temperatures of low-pressure side of LTR	222.1°C/104.1°C	275.0°C/154.8°C
LTR min_dt	10.1°C	11.9°C
Turbine produced power	66.11 MW	72.24 MW
Compressor consumed power	42.19 MW	26.6 MW
Recompression compressor consumed power	18.68 MW	11.28 MW