.ThermoPower.Water

Information

This package contains models of physical processes and components using water or steam as working fluid.

All models use the StandardWater medium model by default, which is in turn set to Modelica.Media.Water.StandardWater at the library level. It is of course possible to redeclare the medium model to any model extending Modelica.Media.Interfaces.PartialMedium (or PartialTwoPhaseMedium for 2-phase models). This can be done by directly setting Medium in the parameter dialog, or through a local package definition, as shown e.g. in Test.TestMixerSlowFast. The latter solution allows to easily replace the medium model for an entire set of components.

All models with dynamic equations provide initialisation support. Set the initOpt parameter to the appropriate value:

The latter options can be useful when two or more components are connected directly so that they will have the same pressure or temperature, to avoid over-specified systems of initial equations.

Contents

Name Description
Flange Flange connector for water/steam flows
FlangeA A-type flange connector for water/steam flows
FlangeB B-type flange connector for water/steam flows
StandardWater
SourcePressure Pressure source for water/steam flows
SinkPressure Pressure sink for water/steam flows
SourceMassFlow Flowrate source for water/steam flows
SinkMassFlow Flowrate sink for water/steam flows
ThroughMassFlow Prescribes the flow rate across the component
PressDropLin Linear pressure drop for water/steam flows
PressDrop Pressure drop for water/steam flows
Header Header with metal walls for water/steam flows
Mixer Mixer with metal walls for water/steam flows
Tank Open tank with free surface
Flow1DFV 1-dimensional fluid flow model for water/steam (finite volumes)
Flow1DFV2w Same as Flow1DFV with two walls and heat transfer models
Flow1DFV2ph 1-dimensional fluid flow model for water/steam (finite volumes, 2-phase)
Flow1DFV2ph2w Same as Flow1DFV with two walls and heat transfer models
Flow1DFEM 1-dimensional fluid flow model for water/steam (finite elements)
Flow1DFEM2ph 1-dimensional fluid flow model for water/steam (finite elements)
FlowJoin Joins two water/steam flows
FlowSplit Splits a flow in two
SensT Temperature sensor for water-steam
SensT1 Temperature sensor for water/steam flows, single port
SensW Mass Flowrate sensor for water/steam
SensP Pressure sensor for water/steam flows
Accumulator Water-Gas Accumulator
Drum Drum for circulation boilers
DrumEquilibrium
ValveLin Valve for water/steam flows with linear pressure drop
ValveLiq Valve for liquid water flow
ValveVap Valve for steam flow
ValveLiqChoked Valve for liquid water flow, allows choked flow conditions
Pump Centrifugal pump with ideally controlled speed
PumpNPSH
PumpMech Centrifugal pump with mechanical connector for the shaft
SprayCondenser Model of a spray condenser assuming themodynamic equilibrium between the phases
BarometricCondenser Model of a barometric condenser including the barometric leg
CoolingTower Cooling tower with variable speed fan
ExpansionTankIdeal Ideal expansion tank with prescribed pressure
f_chen Chen's correlation for two-phase flow in a tube
f_colebrook Fanning friction factor for water/steam flows
f_colebrook_2ph Fanning friction factor for a two phase water/steam flow
f_dittus_boelter Dittus-Boelter correlation for one-phase flow in a tube
SteamTurbineStodola Steam turbine: Stodola's ellipse law and constant isentropic efficiency
SteamTurbineUnit Simplified HP+LP turbine unit for steam flows
Utility Utility models
BaseClasses Contains partial models
Drum2States
Flow1D 1-dimensional fluid flow model for water/steam (finite volumes)
Flow1DDB 1-dimensional fluid flow model for water or steam flow (finite volumes, Dittus-Boelter heat transfer)
Flow1D2ph 1-dimensional fluid flow model for water/steam (finite volumes, 2-phase)
Flow1D2phDB 1-dimensional fluid flow model for 2-phase boiling flow (finite volumes, 2-phase, computation of heat transfer coeff.)
Flow1D2phChen 1-dimensional fluid flow model for 2-phase boiling flow (finite volumes, 2-phase, Chen correlation)
Flow1Dfem 1-dimensional fluid flow model for water/steam (finite elements)
Flow1Dfem2ph 1-dimensional fluid flow model for water/steam (finite elements)
SourceP Pressure source for water/steam flows
SinkP Pressure sink for water/steam flows
SourceW Flowrate source for water/steam flows
SinkW Flowrate sink for water/steam flows
ThroughW Prescribes the flow rate across the component

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