.TransiEnt.Components.Heat.ElectricAirHeater.ElectricAirHeater_L4

Information

1. Purpose of model

Simple model for electric resistance heater. It determines the outlet temperature and electric power intake as well as heat and pressure losses according to the electric power set point and inlet air conditions.

2. Level of detail, physical effects considered, and physical insight

• The thermal dynamics are simplified with PT1 for heat release time delay due to thermal capacity of wire.
• Constant efficiency is assumed (for losses in transformer, power electronics etc.)

3. Limits of validity

(no remarks)

4. Interfaces

1. Air Inlet
2. Air Outlet
3. Electric Power setpoint
4. Physical active power port

5. Nomenclature

(no remarks)

6. Governing Equations

(no remarks)

7. Remarks for Usage

(no remarks)

8. Validation

The model has been validated with the electric heater unit of the Electric Thermal Energy Storage demonstration plant of Siemens Gamesa Renewable Energy in Hamburg-Bergedorf, Germany.

9. References

[1] M. von der Heyde, Abschlussbericht zum Teilprojekt der TUHH im Verbundforschungsprojekt Future Energy Solution (FES), BMWI 03ET6072C, 2021

[2] M. von der Heyde, Electric Thermal Energy Storage based on Packed Beds for Renewable Energy Integration, Dissertation, Hamburg University of Technology, 2021

10. Version History

First Version in 04.2020 for the research project Future Energy Solution (FES) by Michael von der Heyde (heyde@tuhh.de)

Contents

Name	Description
Outline
Summary
PressureLoss	Pressure loss model
HeatTransferExternal	Heat transfer air to wall
Insulation	Insulation model