| SI.HeatFlowRate[:] | Q_d_des | {100e6, 120e6, 140e6, 160e6, 180e6, 200e6, 220e6, 240e6, 260e6, 280e6, 300e6, 320e6, 340e6, 360e6, 380e6, 400e6, 420e6, 440e6, 460e6, 480e6, 500e6, 520e6, 540e6, 560e6, 580e6, 600e6, 620e6, 640e6, 660e6, 680e6, 700e6, 720e6, 740e6, 760e6, 780e6, 800e6, 820e6, 840e6, 860e6, 880e6, 900e6, 920e6, 940e6, 960e6, 980e6, 1000e6} | Design Heat Flow Rate |
| SI.Temperature | T_Na1_des | 740 + 273.15 | Desing Sodium Hot Fluid Temperature |
| SI.Temperature | T_MS1_des | 500 + 273.15 | Desing Molten Salt Cold Fluid Temperature |
| SI.Temperature | T_MS2_des | 720 + 273.15 | Desing Molten Salt Hot Fluid Temperature |
| SI.Pressure | p_Na1_des | 101325 | Design Sodium Inlet Pressure |
| SI.Pressure | p_MS1_des | 101325 | Design Molten Salt Inlet Pressure |
| SI.Temperature | T_Na2_input | 520 + 273.15 | Optimal outlet sodium temperature |
| Boolean | ratio_cond | true | Activate ratio constraint |
| Real | ratio_max | 10 | Maximum L/D_s ratio |
| Boolean | L_max_cond | false | Activate maximum HX length constraint |
| SI.Length | L_max_input | 1 | Maximum HX length |
| Boolean | optimize_and_run | true | |
| SI.Length | d_o_input | 0.00635 | Optimal Outer Tube Diameter |
| Integer | N_p_input | 1 | Optimal Tube passes number |
| Integer | layout_input | 2 | Optimal Tube Layout |
| FI.EnergyPrice_kWh | c_e | 0.13/0.9175 | Power cost |
| Real | r | 0.05 | Real interest rate |
| Real | H_y | 4500 | Operating hours |
| Integer | n | 30 | Operating years |
| Integer | dimQ | size(Q_d_des, 1) | |
| Integer | dim_tot | dimQ | |
| SI.MassFlowRate[dim_tot] | m_flow_Na_design | | Sodium mass flow rate |
| SI.MassFlowRate[dim_tot] | m_flow_MS_design | | Molten-Salt mass flow rate |
| Real[dim_tot] | F_design | | Temperature correction factor |
| SI.ThermalConductance[dim_tot] | UA_design | | UA |
| Integer[dim_tot] | N_t | | Number of tubes |
| SI.CoefficientOfHeatTransfer[dim_tot] | U_design | | Heat tranfer coefficient |
| SI.Area[dim_tot] | A_HX | | Exchange Area |
| SI.Pressure[dim_tot] | Dp_tube_design | | Tube-side pressure drop |
| SI.Pressure[dim_tot] | Dp_shell_design | | Shell-side pressure drop |
| FI.MoneyPerYear[dim_tot] | TAC | | Total Annualized Cost |
| SI.CoefficientOfHeatTransfer[dim_tot] | h_s_design | | Shell-side Heat tranfer coefficient |
| SI.CoefficientOfHeatTransfer[dim_tot] | h_t_design | | Tube-side Heat tranfer coefficient |
| SI.Length[dim_tot] | D_s | | Shell Diameter |
| SI.Length[dim_tot] | D_s_out | | Outer Shell Diameter |
| Integer[dim_tot] | N_baffles | | Number of baffles |
| SI.Length[dim_tot] | l_b | | Baffle spacing |
| SI.Velocity[dim_tot] | v_Na_design | | Sodium velocity in tubes |
| SI.Velocity[dim_tot] | v_max_MS_design | | Molten Salt velocity in shell |
| SI.Volume[dim_tot] | V_HX | | Heat-Exchanger Total Volume |
| SI.Mass[dim_tot] | m_HX | | Heat-Exchanger Total Mass |
| SI.Mass[dim_tot] | m_material_HX | | Heat-Exchanger Material Mass |
| FI.Money_USD[dim_tot] | C_BEC_HX | | Bare cost @2018 |
| FI.MoneyPerYear[dim_tot] | C_pump_design | | Annual pumping cost |
| Real[dim_tot] | ex_eff_design | | HX Exergetic Efficiency |
| Real[dim_tot] | en_eff_design | | HX Energetic Efficiency |
| SI.Length[dim_tot] | L | | Tube length |
| Real[dim_tot] | ratio_HX | | |
| Real[dim_tot] | penalty | | |
| SI.Length[dim_tot] | d_o | | Optimal Outer Tube Diameter |
| Integer[dim_tot] | N_p | | Optimal Tube passes number |
| Integer[dim_tot] | N_sp | | Optimal Tube passes number |
| Integer[dim_tot] | layout | | Optimal Tube Layout |
| SI.Temperature[dim_tot] | T_Na2_design | | Optimal outlet sodium temperature |
| FI.AreaPrice[dim_tot] | sc_A | | HX Specific Cost - Area |
| FI.MassPrice[dim_tot] | sc_m | | HX Specific Cost - Mass |
| Real[dim_tot] | sc_cap | | HX Specific Cost - Capacity |
| Real[dim_tot] | moA | | Mass Over Area Ratio |
Medium1