.Annex60.Fluid.Actuators.Dampers.VAVBoxExponential

Information

Model of two resistances in series. One resistance has a fixed flow coefficient, the other resistance is an air damper whose flow coefficient is an exponential function of the opening angle.

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

• January 22, 2016, by Michael Wetter:
  Corrected type declaration of pressure difference. This is for #404.
• December 14, 2012 by Michael Wetter:
  Renamed protected parameters for consistency with the naming conventions.
• April 13, 2010 by Michael Wetter:
  Added noEvent to guard evaluation of the square root for negative numbers during the solver iterations.
• June 10, 2008 by Michael Wetter:
  Introduced new partial base class, PartialDamperExponential.
• September 11, 2007 by Michael Wetter:
  Redefined kRes, now the pressure drop of the fully open damper is subtracted from the fixed resistance.
• February 24, 2010 by Michael Wetter:
  Added parameter dp_nominalIncludesDamper.
• July 27, 2007 by Michael Wetter:
  First implementation.