Buildings.Fluid.Delays.Examples

Information

This package contains examples for the use of models that can be found in Buildings.Fluid.Delays.

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Package Content

Name	Description
Delay

Buildings.Fluid.Delays.Examples.Delay

Information

Modelica definition

model Delay
  extends Modelica.Icons.Example;
// We set X_default to a small enough value to avoid saturation at the medium temperature
// that is used in this model.
 package Medium = Buildings.Media.GasesPTDecoupled.MoistAirUnsaturated(X_default={0.001, 0.999});

    Modelica.Blocks.Sources.Constant PAtm(k=101325);
    Modelica.Blocks.Sources.Ramp P(
      duration=1,
    height=20,
    offset=101315);
    Buildings.Fluid.FixedResistances.FixedResistanceDpM res1(
    from_dp=true,
    m_flow_nominal=5,
    dp_nominal=5,
    redeclare package Medium = Medium);
  Buildings.Fluid.Sources.Boundary_pT sou(
                T=293.15, redeclare package Medium = Medium,
    use_p_in=true,
    nPorts=1);
  Buildings.Fluid.Sources.Boundary_pT sin(
                T=283.15, redeclare package Medium = Medium,
    use_p_in=true,
    nPorts=1);
    Buildings.Fluid.FixedResistances.FixedResistanceDpM res2(
    from_dp=true,
    m_flow_nominal=5,
    dp_nominal=5,
    redeclare package Medium = Medium);
  Buildings.Fluid.Delays.DelayFirstOrder del(         m_flow_nominal=5, redeclare 
      package Medium = Medium,
    T_start=283.15,
    nPorts=2);
  inner Modelica.Fluid.System system;
equation 
  connect(P.y, sou.p_in);
  connect(PAtm.y, sin.p_in);
  connect(sou.ports[1], res1.port_a);
  connect(sin.ports[1], res2.port_b);
  connect(res1.port_b, del.ports[1]);
  connect(res2.port_a, del.ports[2]);
end Delay;