Version 3.0.0 is a major new release.
The following major changes have been done:
Buildings.ThermalZones.Detailed.Examples.ElectroChromicWindow.
Buildings.Fluid.Movers can now be configured to use
three different control input signals: a continuous signal (depending on the model
either normalized speed, speed in rpm, prescribed mass flow rate or prescribed head),
discrete stages of these quantities, or on/off.
The models also have been refactored to make their implementation clearer.
Buildings.Fluid.HeatPumps has been added.
This package contains models for idealized heat pumps
whose COP changes proportional to the change in COP of a Carnot cycle,
with an optional correction for the part load efficiency.
Buildings.Electrical,
have been reformulated to comply with the Modelica Language Definition.
All models comply with the pedantic Modelica check of Dymola.
The following new libraries have been added:
| Buildings.Fluid.HeatPumps | Library with heat pump models.
This library contains models for idealized heat pumps
whose COP changes proportional to the change in COP of a Carnot cycle.
Optionally, a part load efficiency curve can be specified.
The model Buildings.Fluid.HeatPumps.Carnot_TCon
takes as a control input the leaving
condenser fluid temperature, and the model
Buildings.Fluid.HeatPumps.Carnot_y takes as
a control signal the compressor speed.
|
The following new components have been added to existing libraries:
| Buildings.BoundaryConditions.SolarGeometry | |
| Buildings.BoundaryConditions.SolarGeometry.ProjectedShadowLength | Block that computes the length of a shadow projected onto a horizontal plane into the direction that is perpendicular to the azimuth of a surface. |
| Buildings.Electrical | |
| Buildings.Electrical.AC.ThreePhasesUnbalanced.Interfaces.Adapter3to3 Buildings.Electrical.AC.ThreePhasesUnbalanced.Interfaces.Connection3to3Ground_n Buildings.Electrical.AC.ThreePhasesUnbalanced.Interfaces.Connection3to3Ground_p |
Adapters for unbalanced three phase systems which are required because the previous formulation used connect statements that violate the Modelica Language Definition. This change was required to enable pedantic model check and translation in Dymola 2016 FD01. This is for #426. |
| Buildings.Fluid.Chillers | |
| Buildings.Fluid.Chillers.Carnot_TEva | Chiller model whose efficiency changes with temperatures similarly to a change in Carnot efficiency. The control input signal is the evaporator leaving fluid temperature. This is for IBPSA, #353. |
| Buildings.Fluid.Sensors | |
| Buildings.Fluid.Sensors.PPM Buildings.Fluid.Sensors.PPMTwoPort |
Sensors that measure trace substances in parts per million. |
| Buildings.HeatTransfer.Windows | |
| Buildings.HeatTransfer.Windows.BeamDepthInRoom | Block that computes the maximum distance at which a solar beam that enters the window hits the workplane. |
| Buildings.Utilities.Math | |
| Buildings.Utilities.Math.Functions.smoothInterpolation | Function that interpolates for vectors xSup[], ySup[]
and independent variable x.
The interpolation is done using a cubic Hermite spline with linear extrapolation.
|
The following existing components have been improved in a backward compatible way:
| Buildings.Fluid | |
| Buildings.Fluid.Actuators.Valves.ThreeWayEqualPercentageLinear Buildings.Fluid.Actuators.Valves.ThreeWayLinear |
Changed the default value for valve leakage
parameter l from 0 to 0.0001.
This is the same value as is used for the two-way valves,
and avoids an assertion that would be triggered if l=0.
|
| Buildings.Fluid.Geothermal.Boreholes.UTube | Updated code for 64 bit on Linux and Windows. This closes issue 485. |
| Buildings.Fluid.HeatExchangers.DryEffectivenessNTU | Reformulated model to allow translation in OpenModelica. This is for issue #490. |
| Buildings.Fluid.Chillers.Carnot | Changed the sign convention for dTEva_nominal.
Now, this quantity needs to be negative.
This change was done to be consistent with other models.
In this version, a warning will be written if the sign
is not updated, but the results will be the same.
In future versions the warning will be
changed to an error.The parameters dTEva_nominal and
dTCon_nominal are now used
to assign default values for the nominal mass flow rates.
|
| Buildings.Fluid.MixingVolumes.MixingVolume Buildings.Fluid.MixingVolumes.MixingVolumeMoistAir |
Added the parameter use_C_flow. If set
to true, an input connector will be enabled that can be used
to add a trace substance flow rate, such as CO2, to the volume.
|
| Buildings.Fluid.Movers.FlowControlled_dp Buildings.Fluid.Movers.FlowControlled_m_flow Buildings.Fluid.Movers.FlowControlled_Nrpm Buildings.Fluid.Movers.FlowControlled_y |
Added the parameter inputType which allows
to set the input as an continuous input signal,
to set the input as an Integer input signal that selects the stage of the mover,
or to remove the input connector and use a parameter
to assign the control signal.
|
| Buildings.Fluid.Storage.StratifiedEnhancedInternalHex | Added option to set dynamics of heat exchanger material separately from the dynamics of the fluid inside the heat exchanger. This is for issue #434. |
| Buildings.Fluid.Interfaces.FourPortHeatMassExchanger Buildings.Fluid.Interfaces.TwoPortHeatMassExchanger |
Propagated parameter allowFlowReversal
which can cause a simpler energy balance to be used.
|
| Buildings.Fluid.Interfaces.PartialTwoPortTransport | Implemented more efficient computation of port_a.Xi_outflow
and port_a.C_outflow when allowFlowReversal=false.
This is for
IBPSA issue 305.
|
| Buildings.Fluid.BaseClasses.FlowModels.basicFlowFunction_dp Buildings.Fluid.BaseClasses.FlowModels.basicFlowFunction_m_flow |
Refactored for a more efficient implementation.
Removed double declaration of smooth(..) and smoothOrder
and changed Inline=true to LateInline=true.
This is for
IBPSA issue 301
and for IBPSA issue 279.
|
| Buildings.ThermalZones | |
| Buildings.ThermalZones.Detailed.BaseClasses.CFDExchange | Set start and fixed
attributes in
u[nWri](start=_uStart, each fixed=true)
to avoid a warning in Dymola 2016 about unspecified initial conditions.
This closes
issue 422.Set start and fixed
attributes in
firstTrigger(start=false, fixed=true),
retVal(start=0, fixed=true) and modTimRea(fixed=false)
to avoid such a warning in the pedantic Modelica check in Dymola 2016.
This closes
issue 459.
|
| Buildings.ThermalZones.Detailed.CFD | Updated code for 64 bit on Linux and Windows. This closes issue 485. |
| Buildings.Utilities.Math.Functions | Refactored Buildings.Utilities.Math.Functions.inverseXRegularized
to make it more efficient as it is used in many steady-state energy balances.
This closes
IBPSA issue 302.
|
The following existing components have been improved in a non-backward compatible way:
| Buildings.BoundaryConditions | |
| Buildings.BoundaryConditions.SkyTemperature.BlackBody Buildings.BoundaryConditions.WeatherData.Bus |
Renamed the connector from radHorIR to HHorIR
This is for
IBPSA issue 376.
For Dymola, the conversion script updates these connections.
However, this also results in a renaming of the weather bus variable
weaBus.radHorIR to HHorIR, which may
require a manual update.
|
| Buildings.Fluid | |
| Buildings.Fluid.Interfaces.StaticTwoPortConservationEquation | Removed the constant sensibleOnly and
introduced instead the parameter use_mWat_flow.
The new parameter, if set to true, will enable an input connector
that can be used to add water to the conservation equation.
For Dymola, the conversion script updates the model for these changes.
|
| Buildings.Fluid.Chillers.Carnot | Renamed the model to Buildings.Fluid.Chillers.Carnot_y
due to the addition of the new model Buildings.Fluid.Chillers.Carnot_TEva.
In addition, the following parameter names were changed:
use_eta_Carnot was changed to use_eta_Carnot_nominal, and
etaCar was changed to etaCarnot_nominal.
This is for
IBPSA issue 353.
For Dymola, the conversion script removes these parameters.
|
| Buildings.Fluid.Movers.FlowControlled_dp Buildings.Fluid.Movers.FlowControlled_m_flow Buildings.Fluid.Movers.FlowControlled_Nrpm Buildings.Fluid.Movers.FlowControlled_y |
Removed the parameters use_powerCharacteristics
and motorCooledByFluid as these are already
declared in the performance data record per.
This is for issue
#457.
For Dymola, the conversion script removes these parameters.
|
| Buildings.Fluid.Movers.FlowControlled_dp Buildings.Fluid.Movers.FlowControlled_m_flow Buildings.Fluid.Movers.FlowControlled_Nrpm Buildings.Fluid.Movers.FlowControlled_y |
Removed the public variable r_N.
This is for
IBPSA issue 417.
For Dymola, the conversion script removes
assignments of r_N(start).
|
| Buildings.Fluid.Movers.FlowControlled_dp Buildings.Fluid.Movers.FlowControlled_m_flow |
Write a warning if no pressure curve is provided because
the efficiency calculation can only be done correctly if a pressure curve
is provided. The warning can be suppressed by providing a pressure curve, or
by setting nominalValuesDefineDefaultPressureCurve=true.
|
| Buildings.Fluid.Movers.Data | Replaced the parameters
Buildings.Fluid.Movers.Data.FlowControlled,
Buildings.Fluid.Movers.Data.SpeedControlled_y, and
Buildings.Fluid.Movers.Data.SpeedControlled_Nrpm by
the parameter
Buildings.Fluid.Movers.Data.Generic
which is used for all four types of movers.
This is for
IBPSA issue 417.
This change allows to correctly compute the fan or pump power also for the models
Buildings.Fluid.Movers.FlowControlled_dp,
Buildings.Fluid.Movers.FlowControlled_m_flow
for speeds that are different from the nominal speed, provided that the user
specifies the pressure curve.
For Dymola, the conversion script updates this parameter.In the previous record Buildings.Fluid.Movers.Data.SpeedControlled_Nrpm,
changed the parameter N_nominal to speed_rpm_nominal.
This is for
IBPSA issue 396.
For Dymola, the conversion script updates this parameter.
|
| Buildings.Fluid.BaseClasses.PartialThreeWayResistance Buildings.Fluid.Movers.BaseClasses.PartialFlowMachine Buildings.Fluid.Movers.FlowControlled_dp Buildings.Fluid.Movers.FlowControlled_m_flow Buildings.Fluid.Movers.FlowControlled_Nrpm Buildings.Fluid.Movers.FlowControlled_y Buildings.Fluid.Actuators.Valves.ThreeWayEqualPercentageLinear Buildings.Fluid.Actuators.Valves.ThreeWayLinear Buildings.Fluid.Actuators.Valves.TwoWayEqualPercentage |
Removed parameter dynamicBalance that overwrote the setting
of energyDynamics and massDynamics.
This is for
IBPSA, issue 411.
For Dymola, the conversion script updates the models.
|
| Buildings.Fluid.Interfaces.PartialTwoPort | Renamed the protected parameters
port_a_exposesState, port_b_exposesState and
showDesignFlowDirection.
This is for
IBPSA issue 349
and
IBPSA issue 351.
For Dymola, the conversion script updates models
that extend from Buildings.Fluid.Interfaces.PartialTwoPort.
|
| Buildings.Fluid.Interfaces.FourPort | Renamed model to Buildings.Fluid.Interfaces.PartialFourPort and
removed the parameters
h_outflow_a1_start,
h_outflow_b1_start,
h_outflow_a2_start and
h_outflow_b2_start
to make the model similar to Buildings.Fluid.Interfaces.PartialTwoPort.
See IBPSA issue 299
for a discussion.
For Dymola, the conversion script updates models
that extend from Buildings.Fluid.Interfaces.FourPort.
|
| Buildings.Fluid.Interfaces.StaticTwoPortConservationEquation |
Revised implementation of conservation equations and
added default values for outlet quantities at port_a
if allowFlowReversal=false.
This is for IBPSA issue 281.
Also, revised implementation so that equations are always consistent
and do not lead to division by zero,
also when connecting a prescribedHeatFlowRate
to MixingVolume instances.
Renamed use_safeDivision to prescribedHeatFlowRate.
See IBPSA issue 282
for a discussion.
For users who simply instantiate existing component models, this change is backward
compatible.
However, developers who implement component models that extend from
Buildings.Fluid.Interfaces.StaticTwoPortConservationEquation may need to update
the parameter use_safeDivision and use instead prescribedHeatFlowRate.
See the model documentation.
|
| Buildings.ThermalZones | |
| Buildings.ThermalZones.Detailed.MixedAir Buildings.ThermalZones.Detailed.CFD |
These models can now be used with electrochromic windows.
This required to change the glass properties
tauSol, rhoSol_a and rhoSol_b
to be arrays. For example, to convert an existing model, use
tauSol={0.6} instead of tauSol=0.6.
For Dymola, the conversion script will automatically
update existing models.
|
| Buildings.Obsolete | |
| Buildings.Obsolete.Fluid.Movers Buildings.Obsolete.Media |
Removed these packages which have models from release 2.0.0. |
The following critical errors have been fixed (i.e., errors that can lead to wrong simulation results):
| Buildings.Fluid.Chillers | |
| Buildings.Fluid.Chillers.Carnot | Corrected wrong computation of state of leaving fluid
staB1 and staB2
for the configuration without flow reversal.
The previous implementation mistakenly used the inStream operator.
This is for
issue 476
|
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.Electrical | |
| Buildings.Electrical.Interfaces.PartialWindTurbine | Reformulated test for equality of Real variables. This closes
issue 493.
|
| Buildings.HeatTransfer | |
| Buildings.HeatTransfer.Conduction.SingleLayer Buildings.HeatTransfer.Data.BaseClasses |
Reformulated test for equality of Real variables. This closes
issue 493.
|
| Buildings.Fluid | |
| Buildings.Fluid.FMI.FlowSplitter_u | Corrected wrong assert statement. This closes issue 442. |
| Buildings.Fluid.Chillers.Carnot | Corrected wrong assert statement for test on the efficiency function. This closes issue 468. |
| Buildings.Media | |
| Buildings.Media.Specialized.Water.TemperatureDependentDensity | Removed dublicate entry of smooth and smoothOrder.
This is for
IBPSA issue 303.
|
| Buildings.ThermalZones | |
| Buildings.ThermalZones.Detailed.BaseClasses.MixedAirHeatGain | Reformulated test for equality of Real variables. This closes
issue 493.
|
| Buildings.Utilities.Math | |
| Buildings.Utilities.Math.Functions.BaseClasses.der_2_regNonZeroPower Buildings.Utilities.Math.Functions.BaseClasses.der_polynomial Buildings.Utilities.Math.Functions.BaseClasses.der_regNonZeroPower |
Corrected wrong derivative implementation and improved their regression tests. This is for IBPSA issue 303. |
| Buildings.Utilities.Psychrometrics | |
| Buildings.Utilities.Psychrometrics.Density_pTX | Corrected wrong default component name. |
| Buildings.Utilities.Psychrometrics.Functions.saturationPressure | Changed smoothOrder from 5 to 1 as
Buildings.Utilities.Math.Functions.spliceFunction is only once
continuously differentiable.
Inlined the function.
|
| Buildings.Utilities.IO.Python27 | |
| Buildings.Utilities.IO.Python27.exchange | Updated Python implementation to allow compiling code
on 64 bit Linux. Previously, on Linux a segmentation fault
occurred during run-time if 64 bit code rather than
32 bit code was generated. This is now corrected. Also, Windows 64 bit binaries have been added. This closes issue 287. |