modelMixer
Mixer with metal walls for water/steam flows
Extends from Icons.Water.Mixer.
Information
This model describes a constant volume mixer with metal walls. The fluid can be water, steam, or a two-phase mixture. The metal wall temperature and the heat transfer coefficient between the wall and the fluid are uniform. The wall is thermally insulated from the outside.
Parameters
| Type | Name | Default | Description |
|---|
| SI.Volume | V | | Internal volume |
| SI.Area | S | 0 | Internal surface |
| SI.CoefficientOfHeatTransfer | gamma | 0 | Internal Heat Transfer Coefficient |
| SI.HeatCapacity | Cm | 0 | Metal Heat Capacity |
| Boolean | allowFlowReversal | system.allowFlowReversal | = true to allow flow reversal, false restricts to design direction |
| Initialisation |
| Choices.FluidPhase.FluidPhases | FluidPhaseStart | Choices.FluidPhase.FluidPhases.Liquid | Fluid phase (only for initialization!) |
| Medium.AbsolutePressure | pstart | | Pressure start value |
| Medium.SpecificEnthalpy | hstart | if FluidPhaseStart == Choices.FluidPhase.FluidPhases.Liquid then 1e5 else if FluidPhaseStart == Choices.FluidPhase.FluidPhases.Steam then 3e6 else 1e6 | Specific enthalpy start value |
| Medium.Temperature | Tmstart | 300 | Metal wall temperature start value |
| Choices.Init.Options | initOpt | system.initOpt | Initialisation option |
| Boolean | noInitialPressure | false | Remove initial equation on pressure |
| Boolean | noInitialEnthalpy | false | Remove initial equation on enthalpy |
Components
| Type | Name | Default | Description |
|---|
| Medium.ThermodynamicState | fluidState | | Thermodynamic state of the fluid |
| ThermoPower.System | system | | System wide properties |
| Medium.AbsolutePressure | p | | Fluid pressure |
| Medium.SpecificEnthalpy | h | | Fluid specific enthalpy |
| Medium.SpecificEnthalpy | hi1 | | Inlet 1 specific enthalpy |
| Medium.SpecificEnthalpy | hi2 | | Inlet 2 specific enthalpy |
| Medium.SpecificEnthalpy | ho | | Outlet specific enthalpy |
| SI.Mass | M | | Fluid mass |
| SI.Energy | E | | Fluid energy |
| SI.HeatFlowRate | Q | | Heat flow rate exchanged with the outside |
| Medium.Temperature | T | | Fluid temperature |
| Medium.Temperature | Tm | | Wall temperature |
| SI.Time | Tr | | Residence time |
Contents
| Name | Description |
|---|
 Medium | |
