AixLib.Fluid.Delays.DelayFirstOrder

# .AixLib.Fluid.Delays.DelayFirstOrder

Delay element, approximated by a first order differential equation

## Information

This model approximates a transport delay using first order differential equations.

The model consists of a mixing volume with two ports. The size of the mixing volume is such that at the nominal mass flow rate `m_flow_nominal`, the time constant of the volume is equal to the parameter `tau`.

The heat flux connector is optional and need not be connnected.

## Revisions

- July 12, 2024, by Michael Wetter:
  Moved parameter `tau` to the main parameter tab.
  This is for #1906.
- March 7, 2022, by Michael Wetter:
  Set `final massDynamics=energyDynamics`.
  This is for #1542.
- September 14, 2013, by Michael Wetter:
  Renamed `V0` to `V_nominal` to use consistent notation.
- September 24, 2008, by Michael Wetter:
  Changed base class from `Modelica.Fluid` to `AixLib` library. This was done to track the auxiliary species flow `mC_flow`.
- September 4, 2008, by Michael Wetter:
  Fixed bug in assignment of parameter `sta0`. The earlier implementation required temperature to be a state, which is not always the case.
- March 17, 2008, by Michael Wetter:
  First implementation.

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