modelEvaporatorBase
Basic interface for 1-dimensional water/steam fluid flow models
Extends from Icons.Water.Tube.
Information
This model is not yet complete
Parameters
| Type | Name | Default | Description |
|---|
| Integer | N | 2 | Number of nodes for thermal variables |
| Integer | Nt | 1 | Number of tubes in parallel |
| SI.Distance | L | | Tube length |
| SI.Position | H | 0 | Elevation of outlet over inlet |
| SI.Area | A | | Cross-sectional area (single tube) |
| SI.Length | omega | | Perimeter of heat transfer surface (single tube) |
| SI.Length | Dhyd | | Hydraulic Diameter (single tube) |
| SI.MassFlowRate | wnom | | Nominal mass flowrate (total) |
| Integer | FFtype | | Friction Factor Type (0: Kf; 1:OpPoint, 2:Cfnom, 3:Colebrook) |
| Real | Kfnom | 0 | Nominal hydraulic resistance coefficient |
| SI.Pressure | dpnom | 0 | Nominal pressure drop (friction term only!) |
| Medium.Density | rhonom | 0 | Nominal inlet density |
| SI.PerUnit | Cfnom | 0 | Nominal Fanning friction factor |
| SI.PerUnit | e | 0 | Relative roughness (ratio roughness/diameter) |
| Boolean | DynamicMomentum | false | Inertial phenomena accounted for |
| Integer | HydraulicCapacitance | 2 | 1: Upstream, 2: Downstream |
| SI.Length | csilstart | | Liquid boundary start position |
| SI.Length | csivstart | | Vapour boundary start position |
| Medium.SpecificEnthalpy | hstartin | 1e5 | Inlet enthalpy start value |
| Medium.SpecificEnthalpy | hstartout | 1e5 | Outlet enthalpy start value |
| Medium.AbsolutePressure | pstartin | 1e5 | Inlet pressure start value |
| Medium.AbsolutePressure | pstartout | 1e5 | Outlet pressure start value |
| Real | wnf | 0.01 | Fraction of nominal flow rate at which linear friction equals turbulent friction |
| SI.PerUnit | Kfc | 1 | Friction factor correction coefficient |
| SI.Acceleration | g | Modelica.Constants.g_n | |
Components
| Type | Name | Default | Description |
|---|
| Medium.BaseProperties | fluid_in | | Fluid properties at the inlet |
| Medium.BaseProperties | fluid_out | | Fluid properties at the outlet |
| Medium.SaturationProperties | sat | | Saturation properties |
| Medium.AbsolutePressure | p | | |
| Medium.MassFlowRate | win | | Inlet flow rate |
| Medium.MassFlowRate | wlb | | Flowrate from liquid volume to boiling volume |
| Medium.MassFlowRate | wbv | | Flowrate from boiling volume to vapour volume |
| Medium.MassFlowRate | wout | | Outlet flow rate |
| Medium.SpecificEnthalpy | hin | | Inlet specific enthalpy |
| Medium.SpecificEnthalpy | hout | | Outlet specific enthalpy |
| Medium.SpecificEnthalpy | hls | | Saturated liquid specific enthalpy |
| Medium.SpecificEnthalpy | hvs | | Saturated vapour specific enthalpy |
| Medium.SpecificEnthalpy | hlb | | |
| Medium.SpecificEnthalpy | hbv | | |
| Medium.Density | rhoin | | Inlet density |
| Medium.Density | rhoout | | Outlet density |
| Medium.Density | rhols | | Saturated liquid density |
| Medium.Density | rhovs | | Saturated vapour density |
| SI.Volume | Vl | | Liquid volume |
| SI.Volume | Vb | | Boiling volume |
| SI.Volume | Vv | | Vapour volume |
| SI.Mass | Ml | | Mass of the liquid volume |
| SI.Mass | Mb | | Mass of the boiling volume |
| SI.Mass | Mbl | | Mass of liquid in the boiling volume |
| SI.Mass | Mbv | | Mass of vapour in the boiling volume |
| SI.Mass | Mv | | Mass of the vapour volume |
| SI.Energy | El | | Energy of the liquid volume |
| SI.Energy | Eb | | Energy of the boiling volume |
| SI.Energy | Ev | | Energy of the vapour volume |
| SI.Power | Q | | Total power balance |
| Medium.MassFlowRate | M_flow | | Total mass flow balance |
| SI.Power | Ql | | Thermal power to the liquid volume |
| SI.Power | Qb | | Thermal power to the boiling volume |
| SI.Power | Qv | | Thermal power to the vapour volume |
| SI.Length | csil | | Abscissa of liqid boundary |
| SI.Length | csiv | | Abscissa of vapour boundary |
| SI.Time | Tr | | Residence time |
Contents
| Name | Description |
|---|
 Medium | |