modelPartialHumidifier
partial model of a humidifier
Extends from Components.BaseClasses.PartialComponent (BaseClass for components in air handling units with one air flow).
Information
This model provides a partial humidifier. All water added to the air flow is binded in the air and leads to an increase of the absolute humidity.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | use_X_set | false | if true, a set humidity is used to calculate the necessary mass flow rate |
| Modelica.Units.SI.Temperature | TWatIn | temperature of liquid water added to humidifier | |
| Advanced | |||
| Modelica.Units.SI.SpecificHeatCapacity | cpAir (from PartialComponent) | 1006 | specific heat capacity of dry air |
| Modelica.Units.SI.SpecificHeatCapacity | cpSteam (from PartialComponent) | 1860 | specific heat capacity of steam |
| Modelica.Units.SI.Density | rhoAir (from PartialComponent) | 1.2 | Density of air |
| Modelica.Units.SI.SpecificHeatCapacity | cpWater | 4180 | specific heat capacity of liquid water |
| Nominal conditions | |||
| Modelica.Units.SI.MassFlowRate | m_flow_nominal (from PartialComponent) | nominal mass flow rate | |
| Modelica.Units.SI.PressureDifference | dp_nominal (from PartialComponent) | pressure drop at nominal mass flow rate | |
| Modelica.Units.SI.MassFlowRate | mWat_flow_nominal | 0.05 | nominal water/steam flow rate of humidifier |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | mAirIn_flow (from PartialComponent) | mass flow rate of incoming air | |
| Modelica.Blocks.Interfaces.RealInput | TAirIn (from PartialComponent) | Temperature of incoming air | |
| Modelica.Blocks.Interfaces.RealInput | XAirIn (from PartialComponent) | absolute humidity of incoming air | |
| Modelica.Blocks.Interfaces.RealOutput | mAirOut_flow (from PartialComponent) | mass flow rate of outgoing air | |
| Modelica.Blocks.Interfaces.RealOutput | TAirOut (from PartialComponent) | temperature of outgoing air | |
| Modelica.Blocks.Interfaces.RealOutput | XAirOut (from PartialComponent) | absolute humidity of outgoing air | |
| Modelica.Blocks.Interfaces.RealOutput | dp (from PartialComponent) | pressure difference | |
| Modelica.Blocks.Interfaces.RealInput | u | input connector scaling water flow rate [0..1] | |
| Modelica.Blocks.Interfaces.RealInput | X_set |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.SpecificEnthalpy | hAirIn (from PartialComponent) | specific enthalpy of incoming air | |
| Modelica.Units.SI.SpecificEnthalpy | hAirOut (from PartialComponent) | specific enthalpy of outgoing air | |
| PartialPressureDrop | partialPressureDrop |
Contents
| Name | Description |
|---|---|
| PartialPressureDrop |
Revisions
- April 2020, by Martin Kremer:
First implementation.