| Integer | ItotalNumPipes (from HEXtubesDefinition) | | total number of individual inner pipes |
| Modelica.Units.SI.Distance | IiPerimeter (from HEXtubesDefinition) | | inner pipe internal wetted perimeter |
| Modelica.Units.SI.Area | IiSection (from HEXtubesDefinition) | | inner pipe internal flow section |
| Modelica.Units.SI.Distance | IDh (from HEXtubesDefinition) | | internal pipe hydraulic diameter |
| Modelica.Units.SI.Area | IiArea (from HEXtubesDefinition) | | total inner pipes internal heat transfer area |
| Modelica.Units.SI.Distance | IoPerimeter (from HEXtubesDefinition) | | inner pipe external perimeter |
| Modelica.Units.SI.Area | IoSection (from HEXtubesDefinition) | | inner pipe external section |
| Modelica.Units.SI.Area | IoArea (from HEXtubesDefinition) | | total inner pipes external heat transfer area |
| MediumI.ThermodynamicState | IStateIn (from HEXtubesDefinition) | | inner flow inlet state |
| MediumI.ThermodynamicState | IStateOut (from HEXtubesDefinition) | | inner flow outlet state |
| Modelica.Units.SI.Temperature | ITin (from HEXtubesDefinition) | | inner flow inlet temperature |
| Modelica.Units.SI.Temperature | ITout (from HEXtubesDefinition) | | iiner flow outlet temperature |
| Modelica.Units.SI.Temperature | IT (from HEXtubesDefinition) | | inner pipe average temperature |
| MediumI.ThermodynamicState | IStateWall (from HEXtubesDefinition) | | inner pipe wall state for correction factors
calculation |
| Modelica.Units.SI.Temperature | ITwall (from HEXtubesDefinition) | | inner pipe wall temperature |
| Modelica.Units.SI.DynamicViscosity | IMuWall (from HEXtubesDefinition) | | inner pipe wall dynamic viscosity |
| Real | IPlossCorr (from HEXtubesDefinition) | | internal pipe pressure loss correction factor |
| Modelica.Units.SI.AbsolutePressure | IPloss (from HEXtubesDefinition) | | internal pipe pressure loss by friction, without taking into account the nozzles |
| Real | IHTcorr (from HEXtubesDefinition) | | internal pipe heat transfer correction factor |
| Modelica.Units.SI.NusseltNumber | INu (from HEXtubesDefinition) | | inner pipe Nusselt number |
| Modelica.Units.SI.CoefficientOfHeatTransfer | IH (from HEXtubesDefinition) | | inner pipe average heat transfer coefficient |
| MediumO.ThermodynamicState | OStateIn (from HEXtubesDefinition) | | outer flow inlet state |
| MediumO.ThermodynamicState | OStateOut (from HEXtubesDefinition) | | outer flow outlet state |
| Modelica.Units.SI.Temperature | OTin (from HEXtubesDefinition) | | outer flow inlet temperature |
| Modelica.Units.SI.Temperature | OTout (from HEXtubesDefinition) | | outer flow outlet temperature |
| Modelica.Units.SI.Temperature | OT (from HEXtubesDefinition) | | outer flow average temperature |
| Modelica.Units.SI.Length | IEquivLength (from HEXtubesDefinition) | | internal pipe equivalent length for pressure drop |
| Real | OPlossCorr (from HEXtubesDefinition) | | outer flow pressure loss correction factor |
| Modelica.Units.SI.AbsolutePressure | OPloss (from HEXtubesDefinition) | | outer flow pressure loss by friction |
| Modelica.Units.SI.Area | OiArea (from HEXtubesDefinition) | | total outer flow internal area for heat transfer |
| Fraction | OiEfficiency (from HEXtubesDefinition) | | outer flow internal area efficiency |
| Modelica.Units.SI.NusseltNumber | ONu (from HEXtubesDefinition) | | outer flow nusselt number for internal heat transfer |
| Modelica.Units.SI.CoefficientOfHeatTransfer | OHi (from HEXtubesDefinition) | | outer flow average heat transfer coefficient to inner pipe |
| Modelica.Units.SI.ThermalResistance | TRii (from HEXtubesDefinition) | | total resitance for the transfer between inner fluid and inner wall |
| Modelica.Units.SI.ThermalResistance | TRio (from HEXtubesDefinition) | | total resitance for the transfer between outer fluid and inner wall |
| Modelica.Units.SI.ThermalResistance | TRi (from HEXtubesDefinition) | | total resitance for the transfer between inner and outer fluids |
| Modelica.Units.SI.CoefficientOfHeatTransfer | Ui (from HEXtubesDefinition) | | global heat transfer coefficient referenced to total inner flow area |
| Modelica.Units.SI.TemperatureDifference | ILMTD (from HEXtubesDefinition) | | LMTD between inner and outer fluids |
| Fraction | ILMTDcorr (from HEXtubesDefinition) | | internal LMTD correction factor |
| Real | Rntu (from HEXtubesDefinition) | | |
| Real | NTU (from HEXtubesDefinition) | | |
| Modelica.Units.SI.Power | IW (from HEXtubesDefinition) | | heat exchanged between inner and outer fluids. Positive if heat enters the inner fluid |
| Modelica.Units.SI.Area | IiArea1 (from HEXtubesDefinition) | | total inner pipes internal heat transfer area used in first stage transfer |
| Modelica.Units.SI.ThermalResistance | TRi1 (from HEXtubesDefinition) | | total resitance for the transfer between inner and outer fluids in the first stage |
| Modelica.Units.SI.Distance | FinsPerimeter (from DoublePipeHEX) | | wetted fins perimeter on each internal pipe |
| Modelica.Units.SI.Area | FinsSection (from DoublePipeHEX) | | fins section on each internal pipe |
| Modelica.Units.SI.Area | FinsArea (from DoublePipeHEX) | | total fins area for heat transfer |
| Modelica.Units.SI.Distance | OoPerimeter (from DoublePipeHEX) | | outer pipe external perimeter |
| Modelica.Units.SI.Area | OoSection (from DoublePipeHEX) | | Outer pipe external section |
| Modelica.Units.SI.Distance | OiPerimeter (from DoublePipeHEX) | | Outer pipe internal wetted perimeter |
| Modelica.Units.SI.Area | OiSection (from DoublePipeHEX) | | Outer pipe total internal section |
| Modelica.Units.SI.Distance | Operimeter (from DoublePipeHEX) | | annulus wetted perimeter |
| Modelica.Units.SI.Area | Osection (from DoublePipeHEX) | | annulus nett flow section |
| Modelica.Units.SI.Distance | ODh (from DoublePipeHEX) | | annulus hydraulic diameter |
| MediumO.ThermodynamicState | OStateAvg (from DoublePipeHEX) | | outer flow average state for physical properties calculation |
| MediumO.ThermodynamicState | OiStateWall (from DoublePipeHEX) | | annulus internal wall state for correction factors calculation |
| Modelica.Units.SI.Density | ORho (from DoublePipeHEX) | | annulus average density |
| Modelica.Units.SI.DynamicViscosity | OMu (from DoublePipeHEX) | | annulus average dynamic viscosity |
| Modelica.Units.SI.SpecificHeatCapacity | OCp (from DoublePipeHEX) | | annulus average heat capacity |
| Modelica.Units.SI.ThermalConductivity | OK (from DoublePipeHEX) | | annulus average thermal conductivity |
| Modelica.Units.SI.DynamicViscosity | OiMuWall (from DoublePipeHEX) | | annulus inner wall dynamic viscosity |
| Modelica.Units.SI.PrandtlNumber | OPr (from DoublePipeHEX) | | annulus Prandt number |
| Modelica.Units.SI.VolumeFlowRate | OQ (from DoublePipeHEX) | | total annulus volume flow rate at average conditions |
| Modelica.Units.SI.ReynoldsNumber | ORe (from DoublePipeHEX) | | annulus average Reynolds number |
| Real | OF (from DoublePipeHEX) | | annulus Darcy's friction factor at average conditions |
| Real | OfSmooth (from DoublePipeHEX) | | |
| Modelica.Units.SI.CoefficientOfHeatTransfer | OHo (from DoublePipeHEX) | | annulus average heat transfer coefficient to outer pipe |
| Modelica.Units.SI.Diameter | ODei (from DoublePipeHEX) | | annulus diameter for heat transfer to internal pipe |
| Modelica.Units.SI.Diameter | ODeo (from DoublePipeHEX) | | annulus diameter for heat transfer to external surface |
| Modelica.Units.SI.Velocity | OV (from DoublePipeHEX) | | annulus flow velocity at average conditions. Normally between 0.9 and 3.0 m/s for liquids |
| Real | FinM (from DoublePipeHEX) | | |
| Modelica.Units.SI.Length | OEquivLength (from DoublePipeHEX) | | external pipe equivalent length for pressure drop |
| Real | OiHTcorr (from DoublePipeHEX) | | external flow internal heat trasfer correction factor. 0.873 |
| MediumI.ThermodynamicState | IStateAvg (from HEXtubesForcedConvection) | | inner pipe average state for physical properties calculation |
| Modelica.Units.SI.Density | IRho (from HEXtubesForcedConvection) | | inner pipe average density |
| Modelica.Units.SI.DynamicViscosity | IMu (from HEXtubesForcedConvection) | | inner pipe average dynamic viscosity |
| Modelica.Units.SI.SpecificHeatCapacity | ICp (from HEXtubesForcedConvection) | | inner pipe average heat capacity |
| Modelica.Units.SI.ThermalConductivity | IK (from HEXtubesForcedConvection) | | inner pipe average thermal conductivity |
| Modelica.Units.SI.PrandtlNumber | IPr (from HEXtubesForcedConvection) | | inner pipe Prandt number |
| Modelica.Units.SI.VolumeFlowRate | IQ (from HEXtubesForcedConvection) | | inner pipe total volume flow rate at average conditions |
| Modelica.Units.SI.Velocity | IV (from HEXtubesForcedConvection) | | velocity at average conditions referenced to the empty pipe. Normally between 0.9 and 3.0 m/s for liquids |
| Modelica.Units.SI.ReynoldsNumber | IRe (from HEXtubesForcedConvection) | | inner pipe Reynolds number at average conditions |
| Real | IFl (from HEXtubesForcedConvection) | | internal flowlaminar Darcy's friction factor at average conditions |
| Real | IFt (from HEXtubesForcedConvection) | | internal flow turbulent Darcy's friction factor at average conditions |
| Real | IF (from HEXtubesForcedConvection) | | internal flow Darcy's friction factor at average conditions |
| Modelica.Units.SI.RayleighNumber | IRa (from HEXtubesForcedConvection) | | inner flow Rayleigh number |
| Real | ISw (from HEXtubesForcedConvection) | | inner flowSwirl number |
| Real | IfSmooth (from HEXtubesForcedConvection) | | |
