.Buildings.UsersGuide.ReleaseNotes.Version_1_2_build1 .Buildings.UsersGuide.ReleaseNotes.Version_1_2_build1In version 1.2 build 1, models for radiant slabs and window overhangs and sidefins have been added. This version also contains various improvements to existing models. A detailed list of changes is shown below.
The following new libraries have been added:
| Buildings.Fluid.HeatExchangers.RadiantSlabs | Package with models for radiant slabs with pipes or a capillary heat exchanger embedded in the construction. |
| Buildings.Fluid.Data.Pipes | Package with records for pipes. |
The following new components have been added to existing libraries:
| Buildings.HeatTransfer | |
| Buildings.HeatTransfer.Windows.FixedShade Buildings.HeatTransfer.Windows.Overhang Buildings.HeatTransfer.Windows.SideFins |
For windows with either an overhang or side fins, these blocks output the fraction of the area that is sun exposed. |
| Buildings.ThermalZones | |
| Buildings.ThermalZones.Detailed.Examples.BESTEST | Added BESTEST validation models for case 610, 620, 630, 640, 650FF, 650, 920, 940, 950FF, 950, and 960. |
The following existing components have been improved in a backward compatible way:
| Buildings.BoundaryConditions | |
| Buildings.BoundaryConditions.WeatherData.ReaderTMY3 | Removed assignment of HGloHor_in in
its declaration, because this gives an overdetermined system if the
input connector is used.Added new sub-bus that contains the solar position. This allows reusing the solar position in various other models. |
|
Buildings.BoundaryConditions.SolarIrradiation.DiffuseIsotropic Buildings.BoundaryConditions.SolarIrradiation.DiffusePerez Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.DiffuseIsotropic Buildings.BoundaryConditions.SolarIrradiation.BaseClasses.DiffusePerez |
Added optional output of diffuse radiation from the sky and ground. This allows reusing the diffuse radiation in solar thermal collector. |
| Buildings.BoundaryConditions.SolarGeometry.BaseClasses.SolarAzimuth | Changed implementation to avoid an event at solar noon. |
| Buildings.HeatTransfer | |
| Buildings.HeatTransfer.Data.BoreholeFillings | Renamed class to BoreholeFillings to
be consistent with data records being plural. |
| Buildings.Media | |
| Buildings.Media.GasesPTDecoupled.MoistAir Buildings.Media.Air Buildings.Media.PerfectGases.MoistAir Buildings.Media.PerfectGases.MoistAirUnsaturated Buildings.Media.GasesConstantDensity.MoistAir Buildings.Media.GasesConstantDensity.MoistAirUnsaturated |
Added redeclaration of
ThermodynamicState to avoid a warning during model
check and translation. |
| Buildings.ThermalZones | |
| Buildings.ThermalZones.Detailed.MixedAir | Added a check that ensures that the number of
surfaces are equal to the length of the parameter that contains the
surface area, and added a check to ensure that no surface area is
equal to zero. These checks help detecting erroneous declarations
of the room model. The changes were done in
Buildings.ThermalZones.Detailed.MixedAir.PartialSurfaceInterface. |
The following existing components have been improved in a non-backward compatible way:
| Buildings.ThermalZones | |
| Buildings.ThermalZones.Detailed.MixedAir | Added optional modeling of window overhangs and
side fins. The modeling of window overhangs and side fins required
the introduction of the new parameters hWin for the
window height and wWin for the window width, in
addition to the parameters ove and sidFin
which are used to declare the geometry of overhangs and side fins.
The parameters hWin and wWin replace the
previously used parameter AWin for the window area.
Users need to manually replace AWin with
hWin and wWin when updating models from a
previous version of the library.See the information section in Buildings.ThermalZones.Detailed.MixedAir for how to
use these models. |
The following critical errors have been fixed (i.e., errors that can lead to wrong simulation results):
| Buildings.Controls | |
| Buildings.Controls.SetPoints.OccupancySchedule | Fixed a bug that caused an error in the schedule if the simulation start time was negative or equal to the first entry in the schedule. |
| Buildings.Fluid | |
| Buildings.Fluid.Storage.BaseClass.ThirdOrderStratifier | Revised the implementation to reduce the temperature overshoot. |
| Buildings.HeatTransfer | |
| Buildings.HeatTransfer.Windows.BaseClasses.GlassLayer | Fixed the bug in the temperature linearization and in the heat flow through the glass layer if the transmissivity of glass in the infrared regime is non-zero. |
| Buildings.HeatTransfer.Windows.BaseClasses.CenterOfGlass | Fixed a bug in the parameter assignment of the
instance glass. Previously, the infrared emissivity of
surface a was assigned to the surface b. |
| Buildings.Utilities | |
| Buildings.Utilities.IO.BCVTB | Added a call to
Buildings.Utilities.IO.BCVTB.BaseClasses.exchangeReals
in the initial algorithm section. This is needed to
propagate the initial condition to the server. It also leads to one
more data exchange, which is correct and avoids the warning message
in Ptolemy that says that the simulation reached its stop time one
time step prior to the final time. |
The following uncritical errors have been fixed (i.e., errors that do not lead to wrong simulation results, e.g., units are wrong or errors in documentation):
| Buildings.BoundaryConditions | |
| Buildings.BoundaryConditions.WeatherData.ReaderTMY3 | Corrected the documentation of the unit requirement for input files, parameters and connectors. |
| Buildings.Fluid | |
|
Buildings.Fluid.Interfaces.PartialFourPortInterface Buildings.Fluid.Interfaces.PartialTwoPortInterface |
Replaced the erroneous function call
Medium.density with Medium1.density and
Medium2.density in
PartialFourPortInterface. Changed condition to remove
sta_a1 and sta_a2 in
PartialFourPortInterface, and sta_a in
PartialTwoPortInterface, to also compute the state at
the inlet port if show_V_flow=true.The previous implementation resulted in a translation error if show_V_flow=true, but worked correctly otherwise
because the erroneous function call is removed if
show_V_flow=false. |
| Buildings.Fluid.Chillers.Examples.BaseClasses.PartialElectric | Corrected the nominal mass flow rate used in the mass flow source. |
The following issues have been fixed:
| Heat transfer in glass layer | |
| #56 | Fixed bug in heat flow through the glass layer if the infrared transmissivity is non-zero. |
| #57 | Fixed bug in temperature linearization of window glass. |
| Overshooting in enhanced stratified tank | |
| #15 | Revised the implementation to reduce the temperature over-shoot. |