.AixLib.Fluid.Actuators.Valves.ExpansionValves.Examples.StaticHeatPumpBoundaries

Information

This model prescribes inlet and outlet conditions of a simplified static heat pump model (i.e. boundary conditions of the secondary sides of the evaporator and condenser). Furhtermore, it controlls the degrees of opening of the expension valves in such a way that the prescribed outlet condtions of the expansion valves are meet the calculated outlet condtions of the expansion valves. The model is used to validate the expansion valve model in general.

Required information

The User needs to define the following information in order to complete the model:

1. Basic definitions of the expansion valve. For example, the cross-sectional area of the expansion valve.
2. Calculation approache of the flow coefficient.
3. Static boundaries of the heat pump obtained, for example, by experimental data.

To add static boundary conditions, a combi time table is included within the model. The columns are defined as follows:

1. Time steps (0,1,2,3,...).
2. Rotational speed in Hz.
3. Ambient temperature in °C.
4. Heat capacity in W.
5. Temperature at inlet of condenser's secondary fluid in °C.
6. Power consumption in kW.
7. COP.

Moreover, the User needs to define further parameters describing static condtions of the heat pump. These parameters are listed below.

Contents

Name	Description
Medium	Medium of the compressor

Revisions

• December 16, 2017, by Mirko Engelpracht, Christian Vering:
  First implementation (see issue 467).