modelHeatExchanger
Extends from BasesClasses.PartialHeatExchanger.
Information
This component models a dry heat exchanger. It uses an inheritance of the component PartialHeatExchanger and supply value for:
- The mass flow rates of fluid A and B
- The specific heat capacities of fluid A and B
- The function to computes the efficiency. By default, counter current exchanger is considered
- The function to computes the Heat transfer coefficient. By default, constant user defined value is considered
The function effectiveness to compute the effectiveness Eff is a replaceable function. Therefore, all the functions from the 'Functions.ExchangerEffectiveness' package or new user defined functions can be used.
The function heatTransferCoeff to compute the global heat transfer coefficient between fluid A and B h_global is a replaceable function. Therefore, all the functions from the 'Functions.ExchangerHeatTransferCoeff' package or new user defined functions can be used.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Geometrical parameters | |||
| Modelica.SIunits.Area | A (from PartialHeatExchanger) | 1.0 | equivalent exchange surface area |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | port_A_in | ||
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_b | port_A_out | ||
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | port_B_in | ||
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_b | port_B_out | ||
| Modelica.Blocks.Interfaces.RealInput | m_flowA | ||
| Modelica.Blocks.Interfaces.RealInput | m_flowB |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Real | NTU (from PartialHeatExchanger) | Number of transfer unit | |
| Real | Cr (from PartialHeatExchanger) | Ratio of thermal condutance | |
| Modelica.SIunits.Efficiency | Eff (from PartialHeatExchanger) | Exchanger effectiveness | |
| Modelica.SIunits.ThermalConductance | Qc_A (from PartialHeatExchanger) | Thermal flow rate unit of fluid A | |
| Modelica.SIunits.ThermalConductance | Qc_B (from PartialHeatExchanger) | Thermal flow rate unit of fluid B | |
| Modelica.SIunits.Temperature | T_A_in (from PartialHeatExchanger) | ||
| Modelica.SIunits.Temperature | T_A_out (from PartialHeatExchanger) | ||
| Modelica.SIunits.Temperature | T_B_in (from PartialHeatExchanger) | ||
| Modelica.SIunits.Temperature | T_B_out (from PartialHeatExchanger) | ||
| Modelica.SIunits.CoefficientOfHeatTransfer | h_global (from PartialHeatExchanger) | Heat transfer coeffcient between fluid A and B | |
| Modelica.SIunits.HeatFlowRate | Q_flow (from PartialHeatExchanger) | Heat flow exchanged | |
| Modelica.SIunits.Energy | E (from PartialHeatExchanger) | Energy passed throught the component | |
| MediumA.ThermodynamicState | stateA | ||
| MediumB.ThermodynamicState | stateB |
Contents
| Name | Description |
|---|---|
 MediumA | |
| MediumB | |
| effectiveness | |
| heatTransferCoeff |