OpenModelica compatability of ExergyMeter

[FWuellhorst]

Describe the bug
The models in the package ExergyMeter fail in OpenModelica.

Error log

 Error in model:  AixLib.Utilities.Sensors.Examples.ExergyMeters 
[D:/05_Programme/OpenModelica1.19.2-64bit/lib/omlibrary/Modelica 4.0.0/Blocks/Math.mo:543:5-544:48:writable] Warning: The following equation is INCONSISTENT due to specified unit information: specHeaCap.k = cp
Warning: The units of following sub-expressions need to be equal:
- sub-expression "cp" has unit "J/(kg.K)"
- sub-expression "specHeaCap.k" has unit "1"
[D:/05_Programme/OpenModelica1.19.2-64bit/lib/omlibrary/Modelica 4.0.0/Fluid/Interfaces.mo:202:5-202:64:writable] Warning: The model can't be instantiated due to top-level outer element ‘system‘, it may only be used as part of a simulation model.
[D:/05_Programme/OpenModelica1.19.2-64bit/lib/omlibrary/Modelica 4.0.0/Fluid/Interfaces.mo:202:5-202:64:writable] Warning: An inner declaration for outer component system could not be found and was automatically generated.
[D:/05_Programme/OpenModelica1.19.2-64bit/lib/omlibrary/Modelica 4.0.0/Fluid/Interfaces.mo:202:5-202:64:writable] Notification: The diagnostics message for the missing inner is: 
Your model is using an outer "system" component but
an inner "system" component is not defined.
For simulation drag Modelica.Fluid.System into your model
to specify system properties.
[D:/04_git/AixLib/AixLib/Utilities/Sensors/ExergyMeter/StoredExergyMeter.mo:80:11-80:46:writable] Notification: From here:
[D:/04_git/AixLib/AixLib/Utilities/Sensors/ExergyMeter/StoredExergyMeter.mo:77:3-87:27:writable] Error: Non-array modification ‘"ThermodynamicTemperature"‘ for array component ‘quantity‘, possibly due to missing ‘each‘.


 
 Error in model:  AixLib.Utilities.Sensors.ExergyMeter.FlowExergyMeter 
[D:/05_Programme/OpenModelica1.19.2-64bit/lib/omlibrary/Modelica 4.0.0/Fluid/Interfaces.mo:202:5-202:64:writable] Warning: An inner declaration for outer component system could not be found and was automatically generated.
[D:/05_Programme/OpenModelica1.19.2-64bit/lib/omlibrary/Modelica 4.0.0/Fluid/Interfaces.mo:202:5-202:64:writable] Notification: The diagnostics message for the missing inner is: 
Your model is using an outer "system" component but
an inner "system" component is not defined.
For simulation drag Modelica.Fluid.System into your model
to specify system properties.
[D:/04_git/AixLib/AixLib/Utilities/Sensors/ExergyMeter/FlowExergyMeter.mo:8:9-8:32:writable] Notification: From here:
[D:/04_git/AixLib/AixLib/Utilities/Sensors/ExergyMeter/FlowExergyMeter.mo:7:3-12:29:writable] Error: Non-array modification ‘"MassFraction"‘ for array component ‘quantity‘, possibly due to missing ‘each‘.


 
 Error in model:  AixLib.Utilities.Sensors.ExergyMeter.StoredExergyMeter 
[D:/04_git/AixLib/AixLib/Utilities/Sensors/ExergyMeter/StoredExergyMeter.mo:80:11-80:46:writable] Notification: From here:
[D:/04_git/AixLib/AixLib/Utilities/Sensors/ExergyMeter/StoredExergyMeter.mo:77:3-87:27:writable] Error: Non-array modification ‘"ThermodynamicTemperature"‘ for array component ‘quantity‘, possibly due to missing ‘each‘.