Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump

Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries

Package of example models of energy transfer stations for combined heating and cooling connected to building time series loads

Information

This package contains examples illustrating the use of the models in Buildings.DHC.ETS.Combined, connected to building loads that are modeled as time series.

Note that the models do not contain a district loop. Rather, the service line is connected to a constant pressure boundary, and the example models contain an energy transfer station connected to a building load.

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Package Content

Name	Description
WithDHW	ETS connected to building loads without DHW
WithoutDHW	ETS connected to building loads without DHW
Data	Package for data records
BaseClasses	Package with base classes for Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries

Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithDHW

ETS connected to building loads without DHW

Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithDHW

Information

Validation model for a single building load, modeled as time series, connected to an ETS that has domestic hot water integration.

Note the following:

The model does not contain a district loop. Rather, the service line is connected to a constant pressure boundary, and the example model contains an energy transfer station connected to a building load.
The information that a domestic hot water integration is present is obtained from the load profile filNam by reading its entry for the peak domestic hot water load. As it is nonzero, the parameter bui.have_hotWat is set to true.

This model is identical to Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithoutDHW, except that it has domestic hot water.

Extends from Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithoutDHW (ETS connected to building loads without DHW).

Parameters

Type	Name	Default	Description
String	filNam	"modelica://Buildings/Resour...	Load profile

Modelica definition

model WithDHW "ETS connected to building loads without DHW" extends Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithoutDHW( filNam="modelica://Buildings/Resources/Data/DHC/Loads/Examples/JBA_All_futu_tendays.mos"); Modelica.Blocks.Continuous.Integrator dHHotWat if bui.have_hotWat "Cumulative enthalpy difference of domestic hot water"; equation connect(bui.dHHotWat_flow, dHHotWat.u); end WithDHW;

Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithoutDHW

ETS connected to building loads without DHW

Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithoutDHW

Information

Validation model for a single building load, modeled as time series, connected to an ETS.

Note the following:

The model does not contain a district loop. Rather, the service line is connected to a constant pressure boundary, and the example model contains an energy transfer station connected to a building load.
The information that no domestic hot water integration should be modeled is obtained from the load profile filNam by reading its entry for the peak domestic hot water load. As it is zero, the parameter bui.have_hotWat is set to false.

This model is identical to Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.WithDHW, except that it has no domestic hot water.

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters

Type	Name	Default	Description
String	filNam	"modelica://Buildings/Resour...	Load profile

Modelica definition

model WithoutDHW "ETS connected to building loads without DHW" extends Modelica.Icons.Example; package Medium=Buildings.Media.Water "Medium model"; parameter String filNam = "modelica://Buildings/Resources/Data/DHC/Loads/Examples/JBA_ClusterA_futu_tendays.mos" "Load profile"; Buildings.BoundaryConditions.WeatherData.ReaderTMY3 wea( computeWetBulbTemperature=false, filNam = Modelica.Utilities.Files.loadResource( "modelica://Buildings/Resources/Data/DHC/Loads/Examples/fTMY_Maryland_Prince_George's_NORESM2_2020_2039.mos")) "Weather data reader"; Buildings.Fluid.Sources.Boundary_pT ambWat( redeclare package Medium = Medium, p(displayUnit="bar"), T=288.15, nPorts=2) "Ambient water supply and return"; Buildings.DHC.Examples.Combined.ETSHeatRecoveryHeatPump_BuildingTimeSeries.BaseClasses.BuildingETS bui( redeclare package MediumSer = Medium, redeclare package MediumBui = Medium, facTerUniSizHea=1, final filNam=filNam, allowFlowReversalSer=true, have_eleNonHva=true) "Building time series with energy transfer station"; Modelica.Blocks.Continuous.Integrator dHHeaWat "Cumulative enthalpy difference of heating hot water"; Modelica.Blocks.Continuous.Integrator dHChiWat "Cumulative enthalpy difference of chilled water"; Buildings.DHC.Networks.BaseClasses.DifferenceEnthalpyFlowRate senHFlo( redeclare final package Medium1 = Medium, final m_flow_nominal=bui.ets.hex.m1_flow_nominal) "Variation of enthalpy flow rate"; Modelica.Blocks.Continuous.Integrator dHFlo if bui.have_hotWat "Cumulative enthalpy difference across the ets hex"; Modelica.Blocks.Continuous.Integrator EChi "Cumulative electricity consumption of the heat recovery chiller"; equation connect(bui.dHHeaWat_flow, dHHeaWat.u); connect(bui.dHChiWat_flow, dHChiWat.u); connect(wea.weaBus, bui.weaBus); connect(senHFlo.port_b1, bui.port_aSerAmb); connect(senHFlo.dH_flow, dHFlo.u); connect(bui.PCoo, EChi.u); connect(bui.port_bSerAmb, senHFlo.port_a2); connect(ambWat.ports[1], senHFlo.port_b2); connect(ambWat.ports[2], senHFlo.port_a1); end WithoutDHW;