.TransiEnt.Producer.Heat.Gas2Heat.HeatPumpGasCharline

Information

1. Purpose of model

Base class for simple heat pump models that produce a given heat flow via fluid ports and use a charline.

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

Changing ambient temperature can be considered as well as varying COP depending on the temperature difference between waterPortOut and source. The charline is linearly scalable with COP_n and Q_flow_n is used for the cost calculation. Different heat flow boundaries, in which the heat flow is transfered to the water, can

be chosen.

3. Limits of validity

(Purely technical component without physical modeling.)

4. Interfaces

Q_flow_set: set value for the heat flow

T_source_input_K: source temperature (ambient temperature) in K

waterPortIn: inlet port for heating water

waterPortOut: outlet port for heating water

H_flow: needed gas enthalpy flow

gasIn: gas port

5. Nomenclature

(no elements)

6. Governing Equations

Temperature difference for charline = waterPortOut temperature - source temperature

COP=COP_n*1/1.37726*(4e-5*DeltaT^2-0.0111*DeltaT+1.7) [1]

7. Remarks for Usage

(none)

8. Validation

(no validation or testing necessary)

9. References

[1] A. Palzer, Sektorübergreifende Modellierung und Optimierung eines zukünftigen deutschen Energiesystems unter Berücksichtigung von Energieeffizienzmaßnahmen im Gebäudesektor. Stuttgart: Fraunhofer Verlag, 2016.

10. Version History

Model created by Carsten Bode (c.bode@tuhh.de), Feb 2018

Model modified by Jan Westphal (j.westphal@tuhh.de), Jul 2019 (added boolean for using heat port insead of fluid ports)