classVersion_0_12_0

Version 0.12.0

Extends from Modelica.Icons.ReleaseNotes (Icon for release notes in documentation).

Information

Note: The packages whose name ends with Beta are still being validated.

The following critical error has been fixed (i.e. error that can lead to wrong simulation results):

Buildings.ThermalZones
Buildings.ThermalZones.Detailed.BaseClasses.InfraredRadiationExchange The model Buildings.ThermalZones.Detailed.BaseClasses.InfraredRadiationExchange had an error in the view factor approximation. The error caused too much radiosity to flow from large to small surfaces because the law of reciprocity for view factors was not satisfied. This led to low surface temperatures if a surface had a large area compared to other surfaces. The bug has been fixed by rewriting the view factor calculation.

The following improvements and additions have been made:

  • Updated library to Modelica 3.2.
  • Added homotopy operator.
  • Restructured package Buildings.HeatTransfer.
  • Rewrote the models in Buildings.Fluid.Actuators to avoid having the flow coefficient k as an algebraic variable. This increases robustness.
  • Rewrote energy, species and trace substance balance in Buildings.Fluid.Interfaces.StaticTwoPortHeatMassExchanger to better handle zero mass flow rate.
  • Implemented functions enthalpyOfCondensingGas and saturationPressure in single substance media to allow use of the room model with media that do not contain water vapor.
  • Revised Buildings.Fluid.Sources.Outside to allow use of the room model with media that do not contain water vapor.