| Integer | N_G (from ParallelHE) | 2 | Number of node of the gas side |
| Integer | Nw_G (from ParallelHE) | N_G - 1 | Number of volumes of the gas side wall |
| SI.MassFlowRate | gasNomFlowRate (from ParallelHE) | | Nominal flow rate through the gas side |
| SI.Pressure | gasNomPressure (from ParallelHE) | | Nominal pressure in the gas side inlet |
| SI.Volume | gasVol (from ParallelHE) | | Gas volume |
| SI.ThermalConductivity | lambda (from ParallelHE) | | Thermal conductivity of the metal (density by specific heat capacity) |
| Real | pi | Modelica.Constants.pi | |
| SI.Distance | L | 1 | Tube length |
| side A |
| Integer | N_F_A (from ParallelHE) | 2 | Number of node of the fluid side |
| Integer | Nw_F_A (from ParallelHE) | N_F_A - 1 | Number of volumes of the fluid side wall |
| SI.MassFlowRate | fluidNomFlowRate_A (from ParallelHE) | | Nominal flow rate through the fluid side |
| SI.Pressure | fluidNomPressure_A (from ParallelHE) | | Nominal pressure in the fluid side inlet |
| SI.Area | exchSurface_G_A (from ParallelHE) | | Exchange surface between gas - metal tube, |
| SI.Area | exchSurface_F_A (from ParallelHE) | | Exchange surface between metal tube - fluid, |
| SI.Area | extSurfaceTub_A (from ParallelHE) | | Total external surface of the tubes |
| SI.Volume | fluidVol_A (from ParallelHE) | | Fluid volume |
| SI.Volume | metalVol_A (from ParallelHE) | | Volume of the metal part in the tube |
| Real | rhomcm_A (from ParallelHE) | | Metal heat capacity per unit volume [J/m^3.K] |
| SI.CoefficientOfHeatTransfer | gamma_G_A | | Constant heat transfer coefficient in the gas side |
| SI.CoefficientOfHeatTransfer | gamma_F_A | | Constant heat transfer coefficient in the fluid side |
| side B |
| Integer | N_F_B (from ParallelHE) | 2 | Number of node of the fluid side |
| Integer | Nw_F_B (from ParallelHE) | N_F_B - 1 | Number of volumes of the fluid side wall |
| SI.MassFlowRate | fluidNomFlowRate_B (from ParallelHE) | | Nominal flow rate through the fluid side |
| SI.Pressure | fluidNomPressure_B (from ParallelHE) | | Nominal pressure in the fluid side inlet |
| SI.Area | exchSurface_G_B (from ParallelHE) | | Exchange surface between gas - metal tube, |
| SI.Area | exchSurface_F_B (from ParallelHE) | | Exchange surface between metal tube - fluid, |
| SI.Area | extSurfaceTub_B (from ParallelHE) | | Total external surface of the tubes |
| SI.Volume | fluidVol_B (from ParallelHE) | | Fluid volume |
| SI.Volume | metalVol_B (from ParallelHE) | | Volume of the metal part in the tube |
| Real | rhomcm_B (from ParallelHE) | | Metal heat capacity per unit volume [J/m^3.K] |
| SI.CoefficientOfHeatTransfer | gamma_G_B | | Constant heat transfer coefficient in the gas side |
| SI.CoefficientOfHeatTransfer | gamma_F_B | | Constant heat transfer coefficient in the fluid side |
| Initialization |
| SI.Temperature | Tstartbar_G (from ParallelHE) | | Start value of the average gas temperature |
| SI.Pressure | pstart_G (from ParallelHE) | gasNomPressure | Pressure start value, gas side |
| Boolean | SSInit (from ParallelHE) | false | Steady-state initialization |
| Initialization › side A |
| SI.Temperature | Tstartbar_M_A (from ParallelHE) | Tstartbar_G - 50 | Start value of the average metal temperature |
| SI.Pressure | pstart_F_A (from ParallelHE) | 50e5 | Pressure start value |
| Choices.FluidPhase.FluidPhases | FluidPhaseStart_A | Choices.FluidPhase.FluidPhases.Liquid | Fluid phase (only for initialization!) |
| Initialization › side B |
| SI.Temperature | Tstartbar_M_B (from ParallelHE) | Tstartbar_G - 50 | Start value of the average metal temperature |
| SI.Pressure | pstart_F_B (from ParallelHE) | 50e5 | Pressure start value |
| Choices.FluidPhase.FluidPhases | FluidPhaseStart_B | Choices.FluidPhase.FluidPhases.Liquid | Fluid phase (only for initialization!) |
