Annex60.Fluid.Interfaces.PartialFourPort

# .Annex60.Fluid.Interfaces.PartialFourPort

Partial model with four ports

## Information

This model defines an interface for components with four ports. The parameters `allowFlowReversal1` and `allowFlowReversal2` may be used by models that extend this model to treat flow reversal.

This model is identical to Modelica.Fluid.Interfaces.PartialTwoPort, except for the fowllowing:

1. it has four ports, and
2. the parameters `port_a_exposesState`, `port_b_exposesState` and `showDesignFlowDirection` are not implemented.

## Contents

Name | Description
--- | ---
Medium1 | Medium 1 in the component
Medium2 | Medium 2 in the component

## Revisions

- November 12, 2015, by Michael Wetter:
  Renamed model from `FourPort` to `PartialFourPort`. Removed parameters `h_outflow_a1_start`, `h_outflow_b1_start`, `h_outflow_a2_start` and `h_outflow_b2_start`. This is for issue #299.
- October 30, 2015, by Matthis Thorade:
  Added `partial` keyword to model declaration.
- October 6, 2014, by Michael Wetter:
  Changed medium declaration in ports to be final.
- October 3, 2014, by Michael Wetter:
  Changed assignment of nominal value to avoid in OpenModelica the warning alias set with different nominal values.
- November 12, 2013, by Michael Wetter:
  Removed `import Modelica.Constants` statement.
- September 26, 2013 by Michael Wetter:
  Added missing `each` keyword in declaration of nominal value for `Xi_outflow`.
- September 17, 2010 by Michael Wetter:
  Fixed bug: The start value for `port_b1.h_outflow` was set to `h_outflow_b2_start` instead of `h_outflow_b1_start`.
- February 26, 2010 by Michael Wetter:
  Added start values for outflowing enthalpy because they are often iteration variables in nonlinear equation systems.

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