modelVAVBoxExponential

VAV box with constant pressure difference and varying control signal

Extends from Modelica.Icons.Example (Icon for runnable examples).

Information

Test model for the variable air volume flow box. The model has two flow legs, both are connected to models for constant inlet and outlet pressures. The top flow leg has a flow resistance and an air damper, and the bottom flow leg combines both of these resistances into one model. Both flow legs have identical mass flow rates, except at very small flow rates. The reason for this difference is that the equations are regularized for numerical reasons, and combining the two components within one component leads to a slightly different equation for the regularization.

Components

TypeNameDefaultDescription
Buildings.Fluid.Actuators.Dampers.Exponentialdam
Modelica.Blocks.Sources.StepyDam
Modelica.Blocks.Sources.RampP
Buildings.Fluid.Sources.Boundary_pTsou
Buildings.Fluid.Sources.Boundary_pTsin
Modelica.Blocks.Sources.ConstantPAtm
Buildings.Fluid.Actuators.Dampers.Exponentialvav
Buildings.Fluid.FixedResistances.PressureDropres

Contents

NameDescription
Medium

Revisions

  • July 20, 2007 by Michael Wetter:
    First implementation.