@@ -42,9 +42,9 @@ Building large system models
4242When creating a large system model, it is typically easier to build the system model
4343through the composition of subsystem models that can be tested in isolation. For example,
4444the package
45- `Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Examples_ChillerPlant_BaseClasses_Controls_Examples.html#Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples >`_
45+ `Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Examples_ChillerPlant_BaseClasses_Controls_Examples.html#Buildings.Examples.ChillerPlant.BaseClasses.Controls.Examples >`_
4646contains small test models that are used to test individual components in the large system model
47- `Buildings.Examples.ChillerPlant <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Examples_ChillerPlant.html#Buildings.Examples.ChillerPlant >`_.
47+ `Buildings.Examples.ChillerPlant <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Examples_ChillerPlant.html#Buildings.Examples.ChillerPlant >`_.
4848Creating small test models typically saves time as the proper response of controls, and the proper operation of subsystems, can be tested in isolation of complex system-interactions that are often present in large models.
4949
5050
@@ -111,8 +111,8 @@ We will now explain how state variables, such as temperature and pressure, can b
111111
112112Consider a model consisting of a mass flow source ``Modelica.Fluid.Sources.MassFlowSource_T ``, a fluid volume ``Buildings.Fluid.MixingVolumes.MixingVolume `` and
113113a fixed boundary condition ``Buildings.Fluid.Sources.Boundary_pT ``,
114- connected in series as shown in the figure below. Note that the instance ``bou ``
115- implements an equation that sets the medium pressure at its port, i.e., the port pressure ``bou .ports.p `` is fixed.
114+ connected in series as shown in the figure below. Note that the instance ``sin ``
115+ implements an equation that sets the medium pressure at its port, i.e., the port pressure ``sin .ports.p `` is fixed.
116116
117117.. figure :: img/MixingVolumeInitialization.*
118118 :width: 300px
@@ -270,9 +270,9 @@ a fluid port represents the physical phenomena that was intended to model.
270270
271271However, in more complex flow configurations, one may want to explicitly control what branches of a piping or duct network mix.
272272This may be achieved by using an instance of the model
273- `Junction <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_FixedResistances.html#Buildings.Fluid.FixedResistances.Junction >`_
273+ `Junction <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_FixedResistances.html#Buildings.Fluid.FixedResistances.Junction >`_
274274as shown in the left figure below, which is derived from the test model
275- `BoilerPolynomialClosedLoop <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Boilers_Examples.html#Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop >`_
275+ `BoilerPolynomialClosedLoop <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Boilers_Examples.html#Buildings.Fluid.Boilers.Examples.BoilerPolynomialClosedLoop >`_
276276
277277.. _fig_flu_cor_wro :
278278
@@ -283,7 +283,7 @@ as shown in the left figure below, which is derived from the test model
283283
284284In :numref: `fig_flu_cor_wro ` (a), the mixing points have been correctly defined by
285285use of the model
286- `Junction <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_FixedResistances.html#Buildings.Fluid.FixedResistances.Junction >`_.
286+ `Junction <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_FixedResistances.html#Buildings.Fluid.FixedResistances.Junction >`_.
287287However, in :numref: `fig_flu_cor_wro ` (b), all connections are made to the port of the instance ``spl2 ``.
288288This results in the same configuration as is shown in :numref: `fig_flu_cor_wro ` (c).
289289This is certainly not the intention of the modeler, as this causes all flows to be mixed in the port.
@@ -301,13 +301,13 @@ Use of sensors in fluid flow systems
301301When selecting a sensor model, a distinction needs to be made whether the measured quantity depends on
302302the direction of the flow or not. If the quantity depends on the flow direction,
303303such as temperature or relative humidity, then sensors with two ports from the
304- `Buildings.Fluid.Sensors <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Sensors.html#Buildings.Fluid.Sensors >`_
304+ `Buildings.Fluid.Sensors <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Sensors.html#Buildings.Fluid.Sensors >`_
305305library should be used. These sensors have a more efficient implementation than sensors with
306306one port for situations where the flow reverses its direction.
307307The proper use sensors is described in the
308- `User's Guide <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Sensors_UsersGuide.html >`_
308+ `User's Guide <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Sensors_UsersGuide.html >`_
309309of the
310- `Buildings.Fluid.Sensors <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Sensors.html#Buildings.Fluid.Sensors >`_
310+ `Buildings.Fluid.Sensors <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Sensors.html#Buildings.Fluid.Sensors >`_
311311package.
312312
313313
@@ -319,9 +319,9 @@ Reference pressure for incompressible fluids such as water
319319This section explains how to set a reference pressure for fluids that model
320320the flow as :term: `incompressible flow `,
321321such as
322- `Buildings.Media.Water <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Media_Water.html#Buildings.Media.Water >`_
322+ `Buildings.Media.Water <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Media_Water.html#Buildings.Media.Water >`_
323323and
324- `Buildings.Media.Antifreeze.PropyleneGlycolWater <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Media_Antifreeze_PropyleneGlycolWater.html#Buildings.Media.Antifreeze.PropyleneGlycolWater >`_.
324+ `Buildings.Media.Antifreeze.PropyleneGlycolWater <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Media_Antifreeze_PropyleneGlycolWater.html#Buildings.Media.Antifreeze.PropyleneGlycolWater >`_.
325325
326326Consider the flow circuit shown in :numref: `fig_flow_cir ` that consists of a pump or fan,
327327a flow resistance and a volume.
@@ -354,7 +354,7 @@ In this situation, attempting to translate the model leads, in Dymola, to the fo
354354 The number of scalar Real equation elements are 58.
355355
356356 Similarly, if the medium model
357- `Buildings.Media.Specialized.Water.TemperatureDependentDensity <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Media_Specialized_Water_TemperatureDependentDensity.html#Buildings.Media.Specialized.Water.TemperatureDependentDensity >`_,
357+ `Buildings.Media.Specialized.Water.TemperatureDependentDensity <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Media_Specialized_Water_TemperatureDependentDensity.html#Buildings.Media.Specialized.Water.TemperatureDependentDensity >`_,
358358which models density as a function of pressure and enthalpy, is used, then
359359the model is well-defined, but the pressure increases the longer the pump runs.
360360The reason is that the pump adds heat to the water. When the water temperature
@@ -364,7 +364,7 @@ the pressure increases from :math:`1 \, \mathrm{bars}` to :math:`150 \, \mathrm{
364364To avoid this singularity or increase in pressure,
365365use a model that imposes a pressure source and that accounts for the expansion of the fluid.
366366For example, use
367- `Buildings.Fluid.Sources.Boundary_pT <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Sources.html#Buildings.Fluid.Sources.Boundary_pT >`_
367+ `Buildings.Fluid.Sources.Boundary_pT <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Sources.html#Buildings.Fluid.Sources.Boundary_pT >`_
368368to form the system model shown in :numref: `fig_flow_cir_wit_bou `.
369369
370370.. _fig_flow_cir_wit_bou :
@@ -376,15 +376,15 @@ to form the system model shown in :numref:`fig_flow_cir_wit_bou`.
376376 provides a reference presssure.
377377
378378Alternatively, you may use
379- `Buildings.Fluid.Storage.ExpansionVessel <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Storage.html#Buildings.Fluid.Storage.ExpansionVessel >`_,
379+ `Buildings.Fluid.Storage.ExpansionVessel <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Storage.html#Buildings.Fluid.Storage.ExpansionVessel >`_,
380380but
381- `Buildings.Fluid.Sources.Boundary_pT <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Sources.html#Buildings.Fluid.Sources.Boundary_pT >`_
381+ `Buildings.Fluid.Sources.Boundary_pT <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Sources.html#Buildings.Fluid.Sources.Boundary_pT >`_
382382usually leads to simpler equations than
383- `Buildings.Fluid.Storage.ExpansionVessel <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Storage.html#Buildings.Fluid.Storage.ExpansionVessel >`_.
383+ `Buildings.Fluid.Storage.ExpansionVessel <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Storage.html#Buildings.Fluid.Storage.ExpansionVessel >`_.
384384Note that the medium that flows out of the fluid port of
385- `Buildings.Fluid.Sources.Boundary_pT <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Sources.html#Buildings.Fluid.Sources.Boundary_pT >`_
385+ `Buildings.Fluid.Sources.Boundary_pT <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Sources.html#Buildings.Fluid.Sources.Boundary_pT >`_
386386is at a fixed temperature, while the model
387- `Buildings.Fluid.Storage.ExpansionVessel <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Storage.html#Buildings.Fluid.Storage.ExpansionVessel >`_
387+ `Buildings.Fluid.Storage.ExpansionVessel <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Storage.html#Buildings.Fluid.Storage.ExpansionVessel >`_
388388conserves energy.
389389However, since the thermal expansion of the fluid is usually small,
390390this effect can be neglected in most building HVAC applications.
@@ -393,10 +393,10 @@ this effect can be neglected in most building HVAC applications.
393393
394394 In each water circuit, there must be exactly on instance of
395395 `Buildings.Fluid.Sources.Boundary_pT
396- <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Sources.html#Buildings.Fluid.Sources.Boundary_pT> `_,
396+ <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Sources.html#Buildings.Fluid.Sources.Boundary_pT> `_,
397397 or instance of
398398 `Buildings.Fluid.Storage.ExpansionVessel
399- <https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_Storage.html#Buildings.Fluid.Storage.ExpansionVessel> `_.
399+ <https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_Storage.html#Buildings.Fluid.Storage.ExpansionVessel> `_.
400400
401401 If there is more than one such device, then there are multiple
402402 points in the system that set the reference static pressure.
@@ -592,5 +592,5 @@ is produced. This shows the iteration variables and their start values.
592592These start values can be overwritten in the model.
593593
594594
595- .. _PressureDrop : https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_FixedResistances.html#Buildings.Fluid.FixedResistances.PressureDrop
596- .. _WetCoilDiscretized : https://simulationresearch.lbl.gov/modelica/releases/v9.1.1 /help/Buildings_Fluid_HeatExchangers.html#Buildings.Fluid.HeatExchangers.WetCoilDiscretized
595+ .. _PressureDrop : https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_FixedResistances.html#Buildings.Fluid.FixedResistances.PressureDrop
596+ .. _WetCoilDiscretized : https://simulationresearch.lbl.gov/modelica/releases/v10.0.0 /help/Buildings_Fluid_HeatExchangers.html#Buildings.Fluid.HeatExchangers.WetCoilDiscretized
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