.Buildings.Fluid.Actuators.Dampers.MixingBoxMinimumFlow

Information

Model of an outside air mixing box with air dampers and a flow path for the minimum outside air flow rate.

If dp_nominalIncludesDamper=true, then the parameter dp_nominal is equal to the pressure drop of the damper plus the fixed flow resistance at the nominal flow rate. If dp_nominalIncludesDamper=false, then dp_nominal does not include the flow resistance of the air damper.

Revisions

• September 11, 2024, by Michael Wetter:
  Renamed parameters to use_strokeTime and strokeTime, and updated actuator model.
• June 10, 2021, by Michael Wetter:
  Changed implementation of the filter.
  This is for consistency with the changes done in #1498.
• February 26, 2020, by Antoine Gautier:
  Updated parameter bindings consistently with refactoring of Buildings.Fluid.Actuators.BaseClasses.PartialDamperExponential.
  This is for #1188.
• March 24, 2017, by Michael Wetter:
  Renamed filteredInput to use_inputFilter.
  This is for #665.
• March 22, 2017, by Michael Wetter:
  Removed the assignments of AOut, AExh, AOutMin and ARec as these are done in the damper instance using a final assignment of the parameter. This allows scaling the model with m_flow_nominal, which is generally known in the flow leg, and v_nominal, for which a default value can be specified.
  This is for #544.
• January 22, 2016, by Michael Wetter:
  Corrected type declaration of pressure difference. This is for #404.
• February 14, 2012 by Michael Wetter:
  Added filter to approximate the travel time of the actuator.
• February 3, 2012, by Michael Wetter:
  Removed assignment of m_flow_small as it is no longer used in its base class.
• February 24, 2010 by Michael Wetter:
  Changed implementation of flow resistance. Instead of using a fixed resistance and a damper model in series, only one model is used that internally adds these two resistances. This leads to smaller systems of nonlinear equations. This new implementation extends Buildings.Fluid.Actuators.Dampers.MixingBox.
• July 20, 2007 by Michael Wetter:
  First implementation.