| AnnularHydraulicEquivalence | downComerHydraulicEquivalence | fromAnnularVtoHydraulicEquivalence(V_DownComer, Leq/2, Dint_DownComer) | |
| ThermoSysPro.Units.SI.Diameter | Dh_DownComer | downComerHydraulicEquivalence.Dh | Hydraulic diameter of the annular downcomer |
| Real | neq_DownComer | downComerHydraulicEquivalence.neq | Equivalent number of circular pipes preserving the downcomer flow area |
| General › Geometry |
| Integer | Ns | 5 | Number of segments in tubes and riser |
| Integer | n_tubes | 4085 | Number of pipes in parallel |
| ThermoSysPro.Units.SI.Area | S | 4669 | Heat exchange area |
| ThermoSysPro.Units.SI.Length | e_tubes | 1.2e-3 | Pipe's wall thickness |
| ThermoSysPro.Units.SI.Length | Dext_tubes | 22.0e-3 | Pipe's external Diameter |
| ThermoSysPro.Units.SI.Length | Leq | S/(n_tubes*(Dext_tubes - 2*e_tubes)*Modelica.Constants.pi) | Equivalent length for pipes and riser |
| Real | hcCorr | 5.0 | Corrective term for the heat exchange coefficient (hc) inside all pipes - to tune correct Tcold_primary |
| General › Separator: from Riser volume to Dome |
| ThermoSysPro.Units.SI.Volume | V_sep | 7.0 | Volume of the separator |
| ThermoSysPro.Units.SI.Length | L_sep | 3.0 | Length of the separator |
| ThermoSysPro.Units.SI.Length | D_sep | fromVtoDeq(V_sep, L_sep, 1) | Equivalent diameter of the separator (considered one pipe) |
| General › Riser (Tube bundle in the secondary) |
| ThermoSysPro.Units.SI.Volume | V_Riser | 45.0 | Riser's volume |
| ThermoSysPro.Units.SI.Length | D_Riser | fromVtoDeq(V_Riser, Leq/2, n_tubes) | Equivalent diameter of the riser |
| Real | K_riser | 10 | Pressure loss coefficient to tune correct recirculation rate |
| General › Dome |
| ThermoSysPro.Units.SI.Volume | V_Dome | 60.0 | Volume of the dome |
| ThermoSysPro.Units.SI.Length | L_Dome | 5.0 | Length of the dome |
| ThermoSysPro.Units.SI.Length | R_Dome | sqrt(V_Dome/(L_Dome*Modelica.Constants.pi)) | Radius of the dome |
| General › DownComer |
| ThermoSysPro.Units.SI.Volume | V_DownComer | 8.0 | Volume of the downcomer |
| ThermoSysPro.Units.SI.Diameter | Dint_DownComer | 4.0 | Inner diameter of the annular downcomer |
| General › MixARE |
| ThermoSysPro.Units.SI.Volume | V_MixARE | 12.0 | Volume where feedwater mixes with recirculation |
