Buildings.Obsolete.DHC.ETS.Combined.Validation

Collection of validation models

Information

This package contains validation models for the classes in Buildings.Obsolete.DHC.ETS.Combined.

Note that most validation models contain simple input data which may not be realistic, but for which the correct output can be obtained through an analytic solution. The examples plot various outputs, which have been verified against these solutions. These model outputs are stored as reference data and used for continuous validation whenever models in the library change.

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

Package Content

Name	Description
ChillerBorefield	Validation of the ETS model with heat recovery chiller and borefield
ChillerOnly	Validation of the ETS model with heat recovery chiller
ChillerWSE	Validation of the ETS model with heat recovery chiller and waterside economizer
BaseClasses	Package with base classes for Buildings.Obsolete.DHC.ETS.Combined.Validation

Buildings.Obsolete.DHC.ETS.Combined.Validation.ChillerBorefield

Validation of the ETS model with heat recovery chiller and borefield

Buildings.Obsolete.DHC.ETS.Combined.Validation.ChillerBorefield

Information

This model validates Buildings.Obsolete.DHC.ETS.Combined.ChillerBorefield in a system configuration including a geothermal borefield. See Buildings.Obsolete.DHC.ETS.Combined.Validation.ChillerOnly for the description of the main modeling assumptions.

Extends from ChillerOnly (Validation of the ETS model with heat recovery chiller).

Parameters

Type	Name	Default	Description
MassFlowRate	mHeaWat_flow_nominal	0.9*datChi.mCon_flow_nominal	Nominal heating water mass flow rate [kg/s]
MassFlowRate	mChiWat_flow_nominal	0.9*datChi.mEva_flow_nominal	Nominal chilled water mass flow rate [kg/s]
Generic	datChi		Chiller performance data
Integer	nBorHol	64	Number of boreholes (must be a square number)
Distance	dxy	6	Distance in x-axis (and y-axis) between borehole axes [m]
Example	datBorFie	datBorFie(conDat=Buildings.F...	Borefield design data
Design parameter
HeatFlowRate	QCoo_flow_nominal	-1e6	Design cooling heat flow rate (<=0) [W]
HeatFlowRate	QHea_flow_nominal	abs(QCoo_flow_nominal)*(1 + ...	Design heating heat flow rate (>=0) [W]

Modelica definition

model ChillerBorefield "Validation of the ETS model with heat recovery chiller and borefield" extends ChillerOnly( ets( have_borFie=true, datBorFie=datBorFie)); parameter Integer nBorHol=64 "Number of boreholes (must be a square number)"; parameter Modelica.Units.SI.Distance dxy=6 "Distance in x-axis (and y-axis) between borehole axes"; final parameter Modelica.Units.SI.Distance cooBor[nBorHol,2]= Buildings.DHC.ETS.BaseClasses.computeCoordinates(nBorHol, dxy) "Coordinates of boreholes"; parameter Buildings.Fluid.Geothermal.Borefields.Data.Borefield.Example datBorFie( conDat=Buildings.Fluid.Geothermal.Borefields.Data.Configuration.Example( dp_nominal=0, cooBor=cooBor)) "Borefield design data"; end ChillerBorefield;

Buildings.Obsolete.DHC.ETS.Combined.Validation.ChillerOnly

Validation of the ETS model with heat recovery chiller

Buildings.Obsolete.DHC.ETS.Combined.Validation.ChillerOnly

Information

This model validates Buildings.Obsolete.DHC.ETS.Combined.ChillerBorefield in a system configuration with no geothermal borefield.

A fictitious load profile is used, consisting in the succession of five load patterns.
Each load pattern is simulated with two values of the district water supply temperature, corresponding to typical extreme values over a whole year of operation.
The other modeling assumptions are described in Buildings.Obsolete.DHC.ETS.Combined.Validation.BaseClasses.PartialChillerBorefield.

Extends from Buildings.Obsolete.DHC.ETS.Combined.Validation.BaseClasses.PartialChillerBorefield (Partial validation of the ETS model with heat recovery chiller and optional borefield).

Parameters

Type	Name	Default	Description
MassFlowRate	mHeaWat_flow_nominal	0.9*datChi.mCon_flow_nominal	Nominal heating water mass flow rate [kg/s]
MassFlowRate	mChiWat_flow_nominal	0.9*datChi.mEva_flow_nominal	Nominal chilled water mass flow rate [kg/s]
Generic	datChi		Chiller performance data
Design parameter
HeatFlowRate	QCoo_flow_nominal	-1e6	Design cooling heat flow rate (<=0) [W]
HeatFlowRate	QHea_flow_nominal	abs(QCoo_flow_nominal)*(1 + ...	Design heating heat flow rate (>=0) [W]

Modelica definition

model ChillerOnly "Validation of the ETS model with heat recovery chiller" extends Buildings.Obsolete.DHC.ETS.Combined.Validation.BaseClasses.PartialChillerBorefield; Modelica.Blocks.Sources.CombiTimeTable TDisWatSup( tableName="tab1", table=[ 0,11; 49,11; 50,20; 100,20], extrapolation=Modelica.Blocks.Types.Extrapolation.Periodic, timeScale=3600, offset={273.15}, columns={2}, smoothness=Modelica.Blocks.Types.Smoothness.MonotoneContinuousDerivative1) "District water supply temperature"; equation connect(loa.y[2],heaLoaNor.u); connect(loa.y[1],loaCooNor.u); end ChillerOnly;

Buildings.Obsolete.DHC.ETS.Combined.Validation.ChillerWSE

Validation of the ETS model with heat recovery chiller and waterside economizer

Buildings.Obsolete.DHC.ETS.Combined.Validation.ChillerWSE

Information

This model validates Buildings.Obsolete.DHC.ETS.Combined.ChillerBorefield in a system configuration with no geothermal borefield.

A fictitious load profile is used, consisting in the succession of five load patterns.
Each load pattern is simulated with two values of the district water supply temperature, corresponding to typical extreme values over a whole year of operation.
The other modeling assumptions are described in Buildings.Obsolete.DHC.ETS.Combined.Validation.BaseClasses.PartialChillerBorefield.

Extends from ChillerOnly (Validation of the ETS model with heat recovery chiller).

Parameters

Type	Name	Default	Description
MassFlowRate	mHeaWat_flow_nominal	0.9*datChi.mCon_flow_nominal	Nominal heating water mass flow rate [kg/s]
MassFlowRate	mChiWat_flow_nominal	0.9*datChi.mEva_flow_nominal	Nominal chilled water mass flow rate [kg/s]
Generic	datChi		Chiller performance data
Design parameter
HeatFlowRate	QCoo_flow_nominal	-1e6	Design cooling heat flow rate (<=0) [W]
HeatFlowRate	QHea_flow_nominal	abs(QCoo_flow_nominal)*(1 + ...	Design heating heat flow rate (>=0) [W]

Modelica definition

model ChillerWSE "Validation of the ETS model with heat recovery chiller and waterside economizer" extends ChillerOnly( ets( have_WSE=true), TChiWatSupSet(k=12 + 273.15)); Modelica.Blocks.Sources.CombiTimeTable TDisWatSup( tableName="tab1", table=[ 0,11; 49,11; 50,20; 100,20], extrapolation=Modelica.Blocks.Types.Extrapolation.Periodic, timeScale=3600, offset={273.15}, columns={2}, smoothness=Modelica.Blocks.Types.Smoothness.MonotoneContinuousDerivative1) "District water supply temperature"; equation connect(loa.y[2],heaLoaNor.u); connect(loa.y[1],loaCooNor.u); end ChillerWSE;