In 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. |