modelHEX_ideal
Extends from TransiEnt.Basics.Icons.Heat_Exchanger.
Information
1. Purpose of model
Simple and static heat exchanger model with ideal heat transfer.
2. Level of detail, physical effects considered, and physical insight
A given heat Qflow,in is ideally transferred to a medium (water) flow.
3. Limits of validity
(Purely technical component without physical modeling.)
Only applicable for heat transfer from heatport to medium.
4. Interfaces
waterPortIn/Out - ports for heat carrier (water)
heatport - heat inpout port
5. Nomenclature
(no elements)
6. Governing Equations
The heat is balanced by a static equation:
Qflow,in + mflow(hwater,in - hwater,out) = 0.
7. Remarks for Usage
8. Validation
Tested in check model "TestHEX_ideal"
9. References
(no remarks)
10. Version History
Created by Paul Kernstock (paul.kernstock@tuhh.de), Jun 2015
Revised by Lisa Andresen (andresen@tuhh.de), Jul 2015
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.PressureDifference | Delta_p | 1e4 | Constant Pressure loss (positive value means loss) |
| Medium Definitions | |||
| TILMedia.VLEFluidTypes.BaseVLEFluid | water | simCenter.fluid1 | Heat carrier |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.Basics.Interfaces.Thermal.FluidPortOut | waterPortOut | ||
| TransiEnt.Basics.Interfaces.Thermal.FluidPortIn | waterPortIn | ||
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | heatport |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| TransiEnt.SimCenter | simCenter | ||
| Modelica.Units.SI.TemperatureDifference | dT | Temperature difference of heating carrier | |
| Modelica.Units.SI.SpecificEnthalpy | h_inflow | inStream(waterPortIn.h_outflow) | |
| Modelica.Units.SI.EnthalpyFlowRate | dH_flow_carrier | Enthalpy change of heat carrier | |
| TILMedia.Internals.VLEFluidConfigurations.FullyMixtureCompatible.VLEFluid_ph | fluidIn | ||
| TILMedia.Internals.VLEFluidConfigurations.FullyMixtureCompatible.VLEFluid_ph | fluidOut |