TankWith3InletOutletArraysWithEvaporatorCondensor

Tank with Heating and Evaporation

Diagram

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

This tank has the same geometric variables as TankWith3InletOutletArrays plus the feature of a HeatPort and the possibility of evaporation. (Assumption: The gas is condensed immediately afterwards so that a liquid boiling fluid is created.)

The tank can be initialized with the following options:

  • GuessValues: no explicit initial conditions
  • InitialValues: initial values of temperature (or specific enthalpy), composition and level are specified
  • SteadyStateHydraulic: initial values of temperature (or specific enthalpy) and composition are specified; the initial level is determined so that levels and pressure are at steady state.

Full steady state initialization is not supported, because the corresponding initial equations for temperature/enthalpy are undetermined (the flow rate through the port at steady state is zero).

Parameters (21)

crossArea

Value:

Type: Area (m²)

Description: Tank area

top_pipeArea

Value:

Type: Area[n_TopPorts] (m²)

Description: Area of outlet pipe

side_pipeArea

Value:

Type: Area[n_SidePorts] (m²)

Description: Area of outlet pipe

bottom_pipeArea

Value:

Type: Area[n_BottomPorts] (m²)

Description: Area of outlet pipe

height

Value: 10

Type: Height (m)

Description: Height of Tank

V0

Value: 0

Type: Volume (m³)

Description: Volume of the liquid when the level is zero

side_heights

Value: zeros(n_SidePorts)

Type: Height[n_SidePorts] (m)

Description: Side heights

bottom_heights

Value: zeros(n_BottomPorts)

Type: Height[n_BottomPorts] (m)

Description: Bottom heights

top_heights

Value: fill(height, n_TopPorts)

Type: Height[n_TopPorts] (m)

Description: Top heights

level_start

Value:

Type: Height (m)

Description: Initial tank level

initType

Value: Init.GuessValues

Type: Init

Description: Initialization option

use_T_start

Value: true

Type: Boolean

Description: = true, if T_start is used, otherwise h_start

T_start

Value: if use_T_start then 293.15 else Medium.temperature_phX(p_ambient, h_start, X_start)

Type: Temperature (K)

Description: Start value of temperature

h_start

Value: if use_T_start then Medium.specificEnthalpy_pTX(p_ambient, T_start, X_start[1:Medium.nXi]) else 1e4

Type: SpecificEnthalpy (J/kg)

Description: Start value of specific enthalpy

X_start

Value: Medium.reference_X

Type: MassFraction[Medium.nX] (kg/kg)

Description: Start value of mass fractions m_i/m

p_ambient

Value: 101325

Type: AbsolutePressure (Pa)

Description: Tank surface pressure

T_ambient

Value: 293.15

Type: Temperature (K)

Description: Tank surface Temperature

n_TopPorts

Value: 1

Type: Integer

Description: Number of Top connectors

n_SidePorts

Value: 1

Type: Integer

Description: Number of side connectors

n_BottomPorts

Value: 1

Type: Integer

Description: Number of bottom connectors

min_level_for_heating

Value:

Type: Height (m)

Description: Minimum level for heating

Connectors (5)

BottomFluidPort

Type: FluidPort_b[n_BottomPorts]

TopFluidPort

Type: FluidPort_a[n_TopPorts]

SideFluidPort

Type: FluidPort_b[n_SidePorts]

Condensed

Type: FluidPort_b

heatPort

Type: HeatPort_a

Components (6)

medium

Type: BaseProperties

InnerTankTop

Type: InnerTank[n_TopPorts]

InnerTankSide

Type: InnerTank[n_SidePorts]

InnerTankBottom

Type: InnerTank[n_BottomPorts]

heatTransfer

Type: HeatTransfer

sat

Type: SaturationProperties

Description: State vector to compute saturation properties

Used in Examples (1)

BatchPlant_StandardWater

Modelica.Fluid.Examples.AST_BatchPlant

Model of an experimental batch plant