| Real | nG_reflA_blocks | | # of graphite blocks per fuel cell |
| SI.Length | dims_reflAG_1 | | inner radius of graphite blocks |
| SI.Length | dims_reflAG_2 | | outer radius of graphite blocks |
| SI.Length | dims_reflAG_3 | | height of graphite blocks |
| SI.Angle | dims_reflAG_4 | | swept angle of graphite blocks |
| SI.Area | crossArea_reflA | | Cross sectional area of fuel |
| SI.Length | perimeter_reflA | | wetted perimeter of fuel |
| SI.CoefficientOfHeatTransfer | alpha_reflA | | heat transfer coefficient |
| SI.Area | surfaceArea_reflA | | surface area of fuel to graphite |
| SI.Mass | m_reflAG | | mass of graphite in core |
| SI.Mass | m_reflA | | mass of fuel in core |
| SI.Volume | volume_reflAG | m_reflAG/d_G | volume of graphite in ax refl at Tref |
| SI.Volume | volume_reflA | m_reflA/d_PFL | volume of fuel in ax refl at Tref |
| Real | nG_reflR_blocks | | # of graphite blocks per fuel cell |
| SI.Length | dims_reflRG_1 | | length of graphite blocks |
| SI.Length | dims_reflRG_2 | | width of graphite blocks |
| SI.Length | dims_reflRG_3 | | height of graphite blocks |
| SI.Area | crossArea_reflR | | Cross sectional area of fuel |
| SI.Length | perimeter_reflR | | wetted perimeter of fuel |
| SI.CoefficientOfHeatTransfer | alpha_reflR | | heat transfer coefficient |
| SI.Area | surfaceArea_reflR | | surface area of fuel to graphite |
| SI.Mass | m_reflRG | | mass of graphite in core |
| SI.Mass | m_reflR | | mass of fuel in core |
| SI.Volume | volume_reflRG | m_reflRG/d_G | volume of graphite in rad refl at Tref |
| SI.Volume | volume_reflR | m_reflR/d_PFL | volume of fuel in rad refl at Tref |
| Real | nG_fuelCell | | # of graphite blocks per fuel cell |
| SI.Length | dims_fuelG_1 | | length of graphite blocks |
| SI.Length | dims_fuelG_2 | | width of graphite blocks |
| SI.Length | dims_fuelG_3 | | height of graphite blocks |
| SI.Area | crossArea_fuel | | Cross sectional area of fuel |
| SI.Length | perimeter_fuel | | wetted perimeter of fuel |
| SI.CoefficientOfHeatTransfer | alpha_fuel | | heat transfer coefficient |
| SI.Area | surfaceArea_fuel | | surface area of fuel to graphite |
| SI.Mass | m_fuelG | | mass of graphite in core |
| SI.Mass | m_fuel | | mass of fuel in core |
| SI.Volume | volume_fuelG | m_fuelG/d_G | volume of graphite in core at Tref |
| SI.Volume | volume_fuel | m_fuel/d_PFL | volume of fuel in core at Tref |
| SI.Mass | m_plenum | | mass of fuel in plenum |
| SI.Volume | volume_plenum | m_plenum/d_PFL | volume of plenum in core at Tref |
| SI.Mass | m_tee_inlet | | mass of fuel in tee inlet |
| SI.Volume | volume_tee_inlet | m_tee_inlet/d_PFL | volume of tee inlet at Tref |
| SI.Length | dims_pumpBowl_1 | | diameter of pump bowl |
| SI.Length | dims_pumpBowl_2 | | height of pump bowl |
| SI.Length | level_nom_pumpBowl | | nominal salt level of pump bowl |
| SI.Mass | m_pumpBowl | | mass of fuel in plenum |
| SI.Volume | volume_pumpBowl | m_pumpBowl/d_PFL | volume of plenum in core at Tref |
| SI.Length | dims_pipeToPHX_1 | | diameter of pipeToPHX |
| SI.Length | dims_pipeToPHX_2 | | length of pipeToPHX |
| SI.Mass | m_pipeToPHX_PFL | | mass of fuel in plenum |
| SI.Volume | volume_pipeToPHX_PFL | m_pipeToPHX_PFL/d_PFL | volume of plenum in core at Tref |
| SI.Length | dims_pipeFromPHX_1 | | diameter of pipeFromPHX |
| SI.Length | dims_pipeFromPHX_2 | | length of pipeFromPHX |
| SI.Mass | m_pipeFromPHX_PFL | | mass of fuel in plenum |
| SI.Volume | volume_pipeFromPHX_PFL | m_pipeFromPHX_PFL/d_PFL | volume of plenum in core at Tref |
| SI.Temperature | T_tube_inlet_PHX | | inlet temp to PHX tube |
| SI.Temperature | T_tube_outlet_PHX | | outlet temp to PHX tube |
| SI.Pressure | p_inlet_tube_PHX | | inlet pressure PHX tube |
| SI.PressureDifference | dp_tube_PHX | | pressure drop across PHX tube |
| SI.MassFlowRate | m_flow_tube_PHX | | tube PHX mass flow rate |
| SI.Temperature | T_shell_inlet_PHX | | inlet temp to PHX shell |
| SI.Temperature | T_shell_outlet_PHX | | outlet temp to PHX shell |
| SI.Pressure | p_inlet_shell_PHX | | inlet pressure PHX shell |
| SI.PressureDifference | dp_shell_PHX | | pressure drop across PHX shell |
| SI.MassFlowRate | m_flow_shell_PHX | | shell PHX mass flow rate |
| Real | nTubes_PHX | | # tubes in PHX |
| SI.Length | diameter_outer_tube_PHX | | outer diam tube PHX |
| SI.Length | th_tube_PHX | | thickness tube PHX |
| SI.Length | length_tube_PHX | | length tube PHX |
| SI.Length | tube_pitch_PHX | | tube pitch PHX |
| SI.CoefficientOfHeatTransfer | alpha_tube_PHX | | heat transfer coefficient |
| SI.Area | surfaceArea_tube_PHX | | surfaceArea tube PHX |
| SI.Mass | m_tube_PHX | | salt mass tube PHX |
| SI.Volume | volume_tube_PHX | m_tube_PHX/d_PFL | salt volume tube PHX |
| SI.Area | crossArea_shell_PHX | | flow area shell PHX |
| SI.Length | perimeter_shell_PHX | | wetted perimeter shell PHX |
| SI.CoefficientOfHeatTransfer | alpha_shell_PHX | | heat transfer coefficient |
| SI.Area | surfaceArea_shell_PHX | | surfaceArea shell PHX |
| SI.Mass | m_shell_PHX | | salt mass shell PHX |
| SI.Volume | volume_shell_PHX | m_shell_PHX/d_PCL | salt volume shell PHX |
| SI.Length | dims_pumpBowl_PCL_1 | | diameter of pump bowl |
| SI.Length | dims_pumpBowl_PCL_2 | | height of pump bowl |
| SI.Length | level_nom_pumpBowl_PCL | | nominal salt level of pump bowl |
| SI.Mass | m_pumpBowl_PCL | | mass |
| SI.Volume | volume_pumpBowl_PCL | m_pumpBowl_PCL/d_PCL | volume of at Tref |
| SI.Length | dims_pipePHXToPumpBowl_1 | | diameter of |
| SI.Length | dims_pipePHXToPumpBowl_2 | | length of |
| SI.Mass | m_pipePHXToPumpBowl_PCL | | mass |
| SI.Volume | volume_pipePHXToPumpBowl_PCL | m_pipePHXToPumpBowl_PCL/d_PCL | volume of at Tref |
| SI.Length | dims_pipePumpBowlToSHX_1 | | diameter of |
| SI.Length | dims_pipePumpBowlToSHX_2 | | length of |
| SI.Mass | m_pipePumpBowlToSHX_PCL | | mass |
| SI.Volume | volume_pipePumpBowlToSHX_PCL | m_pipePumpBowlToSHX_PCL/d_PCL | volume of at Tref |
| SI.Length | dims_pipeSHXToPHX_1 | | diameter of |
| SI.Length | dims_pipeSHXToPHX_2 | | length of |
| SI.Mass | m_pipeSHXToPHX_PCL | | mass |
| SI.Volume | volume_pipeSHXToPHX_PCL | m_pipeSHXToPHX_PCL/d_PCL | volume of at Tref |
| SI.Temperature | T_tube_inlet_SHX | | inlet temp to SHX tube |
| SI.Temperature | T_tube_outlet_SHX | | outlet temp to SHX tube |
| SI.Pressure | p_inlet_tube_SHX | | inlet pressure SHX tube |
| SI.PressureDifference | dp_tube_SHX | | pressure drop across SHX tube |
| SI.MassFlowRate | m_flow_tube_SHX | | tube SHX mass flow rate |
| SI.Temperature | T_shell_inlet_SHX | | inlet temp to SHX shell |
| SI.Temperature | T_shell_outlet_SHX | | outlet temp to SHX shell |
| SI.Pressure | p_inlet_shell_SHX | | inlet pressure SHX shell |
| SI.PressureDifference | dp_shell_SHX | | pressure drop across SHX shell |
| SI.MassFlowRate | m_flow_shell_SHX | | shell SHX mass flow rate |
| Real | nTubes_SHX | | # tubes in SHX |
| SI.Length | diameter_outer_tube_SHX | | outer diam tube SHX |
| SI.Length | th_tube_SHX | | thickness tube SHX |
| SI.Length | length_tube_SHX | | length tube SHX |
| SI.Length | tube_pitch_SHX | | tube pitch SHX |
| SI.CoefficientOfHeatTransfer | alpha_tube_SHX | | heat transfer coefficient |
| SI.Area | surfaceArea_tube_SHX | | surfaceArea tube SHX |
| SI.Mass | m_tube_SHX | | salt mass tube SHX |
| SI.Volume | volume_tube_SHX | m_tube_SHX/d_BOP | salt volume tube SHX |
| SI.Area | crossArea_shell_SHX | | flow area shell SHX |
| SI.Length | perimeter_shell_SHX | | wetted perimeter shell SHX |
| SI.CoefficientOfHeatTransfer | alpha_shell_SHX | | heat transfer coefficient |
| SI.Area | surfaceArea_shell_SHX | | surfaceArea shell SHX |
| SI.Mass | m_shell_SHX | | salt mass shell SHX |
| SI.Volume | volume_shell_SHX | m_shell_SHX/d_PCL | salt volume shell SHX |