.AixLib.Fluid.DistrictHeatingCooling.Pipes.BaseClassesStatic.StaticCore

Information

Pipe with heat loss using the time delay based heat losses for the transport delay of the fluid.

Implementation

This model is based on FixedResistances.BaseClasses.PlugFlowCore but does not contain the spatialDistribution operator.

The spatialDistribution operator is used for the temperature wave propagation through the length of the pipe. This operator is contained in BaseClasses.PlugFlow.

This model does not include thermal inertia of the pipe wall. The wall inertia is implemented in StaticPipe.

The removal of the thermal inertia with a mixing volume can be desirable in the case where mixing volumes are added manually at the pipe junctions.

The model PlugFlowHeatLoss implements a heat loss in design direction, but leaves the enthalpy unchanged in opposite flow direction. Therefore it is used in front of and behind the time delay.

The pressure drop is implemented using AixLib.Fluid.FixedResistances.HydraulicDiameter.

Revisions

• September 25, 2019, by Nils Neuland:
  Revised variable names and documentation to follow guidelines. Corrected malformed hyperlinks.