Design and Thermal-Hydraulic Evaluation of Integrated Steam Generator with Serpentine-Tube Configuration for Prevention of Sodium-Water Reaction

Table 4

Comparison of SPINS-S code results with the CFD analysis results for thermal-hydraulic conditions of S-ISG.

Fluid	Variable	SPINS-S		CFD
		Up	Down	Up	Down
Hot tube (Na)	Inlet temp. (°C)	510.8	510.0	510.0	510.0
	Outlet temp. (°C)	359.2	371.5	350.5	371.2
	Pressure drop (kPa)	124.2	124.2	174.7	174.6
Cold tube (H2O)	Inlet temp. (°C)	216.9	217.3	217.0	217.0
	Outlet temp. (°C)	463.8	481.4	484.3	499.8
	Pressure drop (kPa)	17.0	17.1	14.2	17.6
Shell (LBE)	Topside temp. (°C)	494.0	494.0	501.3	501.3
	Bottom temp. (°C)	333.2	332.8	320.6	320.6
Heat transfer rate (MWth)		96.85 (sodium)/96.91 (water)		99.69 (sodium)/99.63 (water)