Collection of validation models
Information
This package contains validation models for the classes in
Buildings.Fluid.HeatExchangers.DXCoils.
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 |
 SingleSpeedEnergyPlus
|
Validation model for single speed DX coil with PLR=1 |
| SingleSpeedPLREnergyPlus
|
Validation model for single speed DX coil with PLR=1 |
Validation model for single speed DX coil with PLR=1
Information
This model validates the model
Buildings.Fluid.HeatExchangers.DXCoils.SingleSpeed.
The difference in results of
TOut and
XOut
at the beginning and end of the simulation is because the mass flow rate is zero.
For zero mass flow rate, EnergyPlus assumes steady state condition,
whereas the Modelica model is a dynamic model and hence the properties at the outlet
are equal to the state variables of the model.
The EnergyPlus results were generated using the example file DXCoilSystemAuto.idf
from EnergyPlus 7.1,
with a nominal cooling capacity of 10500 Watts instead of using
autosizing. This allowed to have a part load ratio of one.
Note that EnergyPlus mass fractions (X) are in mass of water vapor per mass of dry air,
whereas Modelica uses the total mass as a reference. Hence, the EnergyPlus values
are corrected by dividing them by
1+X.
Extends from Modelica.Icons.Example (Icon for runnable examples).
Parameters
| Type | Name | Default | Description |
|---|
| Power | Q_flow_nominal | datCoi.sta[1].nomVal.Q_flow_... | Nominal power [W] |
| MassFlowRate | m_flow_nominal | datCoi.sta[1].nomVal.m_flow_... | Nominal mass flow rate [kg/s] |
| PressureDifference | dp_nominal | 1141 | Pressure drop at m_flow_nominal [Pa] |
Modelica definition
model SingleSpeedEnergyPlus
extends Modelica.Icons.Example;
package Medium =
Buildings.Media.Air ;
parameter Modelica.SIunits.Power Q_flow_nominal = datCoi.sta[1].nomVal.Q_flow_nominal ;
parameter Modelica.SIunits.MassFlowRate m_flow_nominal = datCoi.sta[1].nomVal.m_flow_nominal ;
parameter Modelica.SIunits.PressureDifference dp_nominal = 1141 ;
Buildings.Fluid.Sources.Boundary_pT sin(
redeclare package Medium = Medium,
p(displayUnit="Pa") = 101325,
nPorts=1,
T=303.15) ;
Buildings.Fluid.Sources.Boundary_pT sou(
redeclare package Medium = Medium,
p(displayUnit="Pa") = 101325 + dp_nominal,
use_T_in=true,
nPorts=1,
use_p_in=true,
use_X_in=true,
T=299.85) ;
Buildings.Fluid.HeatExchangers.DXCoils.SingleSpeed sinSpeDX(
redeclare package Medium = Medium,
dp_nominal=dp_nominal,
datCoi=datCoi,
T_start=datCoi.sta[1].nomVal.TEvaIn_nominal,
from_dp=true,
energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial) ;
Data.Generic.DXCoil
datCoi(nSta=1, sta={
Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.Stage(
spe=1800/60,
nomVal=
Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.NominalValues(
Q_flow_nominal=-10500,
COP_nominal=3,
SHR_nominal=0.798655,
m_flow_nominal=1.72),
perCur=
Buildings.Fluid.HeatExchangers.DXCoils.Examples.PerformanceCurves.Curve_II())}) ;
Modelica.Blocks.Sources.TimeTable plr_onOff(table=[0,0; 3600,0; 3600,0; 7200,0;
7200,0; 10800,0; 10800,0; 14400,0; 14400,0; 18000,0; 18000,0; 21600,0; 21600,
0; 25200,0; 25200,1; 28800,1; 28800,1; 32400,1; 32400,1; 36000,1; 36000,
1; 39600,1; 39600,1; 43200,1; 43200,1; 46800,1; 46800,1; 50400,1; 50400,
1; 54000,1; 54000,1; 57600,1; 57600,1; 61200,1; 61200,0; 64800,0; 64800,
0; 68400,0; 68400,0; 72000,0; 72000,0; 75600,0; 75600,0; 79200,0; 79200,
0; 82800,0; 82800,0; 86400,0]) ;
Modelica.Blocks.Sources.TimeTable TCIn(table=[0,21.1; 3600,21.1; 3600,
20.80833333; 7200,20.80833333; 7200,20.89166667; 10800,20.89166667;
10800,21.1; 14400,21.1; 14400,20.80833333; 18000,20.80833333; 18000,
20.6; 21600,20.6; 21600,20.89166667; 25200,20.89166667; 25200,21.45;
28800,21.45; 28800,22.63333333; 32400,22.63333333; 32400,23.3; 36000,
23.3; 36000,25.575; 39600,25.575; 39600,28.19166667; 43200,28.19166667;
43200,27.90833333; 46800,27.90833333; 46800,26.90833333; 50400,
26.90833333; 50400,26.7; 54000,26.7; 54000,26.05833333; 57600,
26.05833333; 57600,24.60833333; 61200,24.60833333; 61200,23.55; 64800,
23.55; 64800,23.3; 68400,23.3; 68400,23.00833333; 72000,23.00833333;
72000,22.8; 75600,22.8; 75600,22.15833333; 79200,22.15833333; 79200,
21.35; 82800,21.35; 82800,21.1; 86400,21.1]) ;
Modelica.Blocks.Sources.TimeTable TEvaIn(table=[0,31.29534707; 3600,31.29534707;
3600,30.89999423; 7200,30.89999423; 7200,30.58355581; 10800,30.58355581;
10800,30.30108174; 14400,30.30108174; 14400,30.01393253; 18000,30.01393253;
18000,29.75672215; 21600,29.75672215; 21600,29.66076742; 25200,29.66076742;
25200,25.29138892; 28800,25.29138892; 28800,25.91180176; 32400,25.91180176;
32400,26.79831523; 36000,26.79831523; 36000,27.40611604; 39600,27.40611604;
39600,28.22402981; 43200,28.22402981; 43200,28.69183674; 46800,28.69183674;
46800,29.0211012; 50400,29.0211012; 50400,29.3698004; 54000,29.3698004;
54000,29.52289127; 57600,29.52289127; 57600,29.41955159; 61200,29.41955159;
61200,38.68278429; 64800,38.68278429; 64800,35.75595795; 68400,35.75595795;
68400,33.29770237; 72000,33.29770237; 72000,32.78839302; 75600,32.78839302;
75600,32.3989099; 79200,32.3989099; 79200,32.00270417; 82800,32.00270417;
82800,31.66453096; 86400,31.66453096]) ;
Modelica.Blocks.Sources.TimeTable XEvaIn(table=[0,0.010526598; 3600,0.010526598;
3600,0.010526598; 7200,0.010526598; 7200,0.010526598; 10800,0.010526598;
10800,0.010526598; 14400,0.010526598; 14400,0.010526598; 18000,
0.010526598; 18000,0.010526598; 21600,0.010526598; 21600,0.010631087;
25200,0.010631087; 25200,0.010396485; 28800,0.010396485; 28800,
0.009496633; 32400,0.009496633; 32400,0.009521406; 36000,0.009521406;
36000,0.009576525; 39600,0.009576525; 39600,0.009574467; 43200,
0.009574467; 43200,0.009610872; 46800,0.009610872; 46800,0.009792709;
50400,0.009792709; 50400,0.010022684; 54000,0.010022684; 54000,
0.010213791; 57600,0.010213791; 57600,0.010384401; 61200,0.010384401;
61200,0.010396282; 64800,0.010396282; 64800,0.010537993; 68400,
0.010537993; 68400,0.010537961; 72000,0.010537961; 72000,0.010537961;
75600,0.010537961; 75600,0.010537961; 79200,0.010537961; 79200,
0.010537961; 82800,0.010537961; 82800,0.010537961; 86400,0.010537961]) ;
Modelica.Blocks.Math.RealToBoolean onOff;
Modelica.Blocks.Routing.Multiplex2 mux ;
Buildings.Utilities.IO.BCVTB.From_degC TCIn_K ;
Buildings.Utilities.IO.BCVTB.From_degC TEvaIn_K ;
Modelica.Blocks.Math.Mean TOutMea(f=1/3600);
Buildings.Utilities.IO.BCVTB.To_degC TOutDegC;
Modelica.Blocks.Sources.RealExpression TOut(y=sinSpeDX.vol.T);
Modelica.Blocks.Math.Mean XEvaOutMea(f=1/3600);
Modelica.Blocks.Sources.RealExpression XEvaOut(y=
sum(sinSpeDX.vol.Xi));
Modelica.Blocks.Math.Mean Q_flowMea(f=1/3600) ;
Modelica.Blocks.Math.Mean Q_flowSenMea(f=1/3600) ;
Modelica.Blocks.Math.Mean PMea(f=1/3600) ;
Modelica.Blocks.Math.Add add(k1=-1);
Modelica.Blocks.Sources.Constant XEvaInMoiAir(k=1.0) ;
Modelica.Blocks.Sources.TimeTable TOutEPlu(table=[0,31.29534707; 3600,31.29534707;
3600,30.89999423; 7200,30.89999423; 7200,30.58355581; 10800,30.58355581;
10800,30.30108174; 14400,30.30108174; 14400,30.01393253; 18000,30.01393253;
18000,29.75672215; 21600,29.75672215; 21600,29.66076742; 25200,29.66076742;
25200,20.31734137; 28800,20.31734137; 28800,20.48740189; 32400,20.48740189;
32400,21.17362815; 36000,21.17362815; 36000,21.67091874; 39600,21.67091874;
39600,22.31588652; 43200,22.31588652; 43200,22.67802681; 46800,22.67802681;
46800,22.97615397; 50400,22.97615397; 50400,23.31283949; 54000,23.31283949;
54000,23.48357346; 57600,23.48357346; 57600,23.44857837; 61200,23.44857837;
61200,38.68278429; 64800,38.68278429; 64800,35.75595795; 68400,35.75595795;
68400,33.29770237; 72000,33.29770237; 72000,32.78839302; 75600,32.78839302;
75600,32.3989099; 79200,32.3989099; 79200,32.00270417; 82800,32.00270417;
82800,31.66453096; 86400,31.66453096]) ;
Modelica.Blocks.Sources.TimeTable Q_flowEPlu(table=[0,-1e-07; 3600,-1e-07; 3600,
-1e-07; 7200,-1e-07; 7200,-1e-07; 10800,-1e-07; 10800,-1e-07; 14400,-1e-07;
14400,-1e-07; 18000,-1e-07; 18000,-1e-07; 21600,-1e-07; 21600,-1e-07; 25200,
-1e-07; 25200,-10983.1144101; 28800,-10983.1144101; 28800,-10855.9768001;
32400,-10855.9768001; 32400,-10903.5304201; 36000,-10903.5304201; 36000,
-10877.5678501; 39600,-10877.5678501; 39600,-10822.2172001; 43200,-10822.2172001;
43200,-10878.2459001; 46800,-10878.2459001; 46800,-10981.5365901; 50400,
-10981.5365901; 50400,-11055.6112701; 54000,-11055.6112701; 54000,-11121.6278701;
57600,-11121.6278701; 57600,-11185.7466001; 61200,-11185.7466001; 61200,
-1e-07; 64800,-1e-07; 64800,-1e-07; 68400,-1e-07; 68400,-1e-07; 72000,-1e-07;
72000,-1e-07; 75600,-1e-07; 75600,-1e-07; 79200,-1e-07; 79200,-1e-07; 82800,
-1e-07; 82800,-1e-07; 86400,-1e-07]) ;
Modelica.Blocks.Sources.TimeTable Q_flowSenEPlu(table=[0,0; 3600,0; 3600,0; 7200,
0; 7200,0; 10800,0; 10800,0; 14400,0; 14400,0; 18000,0; 18000,0; 21600,0;
21600,0; 25200,0; 25200,-8537.795206; 28800,-8537.795206; 28800,-9298.755552;
32400,-9298.755552; 32400,-9643.742602; 36000,-9643.742602; 36000,-9835.115234;
39600,-9835.115234; 39600,-10133.17939; 43200,-10133.17939; 43200,-10315.64445;
46800,-10315.64445; 46800,-10372.27848; 50400,-10372.27848; 50400,-10397.02013;
54000,-10397.02013; 54000,-10369.92204; 57600,-10369.92204; 57600,-10254.97156;
61200,-10254.97156; 61200,0; 64800,0; 64800,0; 68400,0; 68400,0; 72000,0;
72000,0; 75600,0; 75600,0; 79200,0; 79200,0; 82800,0; 82800,0; 86400,0]) ;
Modelica.Blocks.Math.Division shrEPlu ;
Modelica.Blocks.Sources.TimeTable XEvaOutEPlu(table=[0,0.010526598; 3600,0.010526598;
3600,0.010526598; 7200,0.010526598; 7200,0.010526598; 10800,0.010526598;
10800,0.010526598; 14400,0.010526598; 14400,0.010526598; 18000,0.010526598;
18000,0.010526598; 21600,0.010526598; 21600,0.010631087; 25200,0.010631087;
25200,0.009824324; 28800,0.009824324; 28800,0.009132468; 32400,0.009132468;
32400,0.009227012; 36000,0.009227012; 36000,0.009333022; 39600,0.009333022;
39600,0.009413613; 43200,0.009413613; 43200,0.009479582; 46800,0.009479582;
46800,0.009650565; 50400,0.009650565; 50400,0.009869069; 54000,0.009869069;
54000,0.010038477; 57600,0.010038477; 57600,0.010167307; 61200,0.010167307;
61200,0.010396282; 64800,0.010396282; 64800,0.010537993; 68400,0.010537993;
68400,0.010537961; 72000,0.010537961; 72000,0.010537961; 75600,0.010537961;
75600,0.010537961; 79200,0.010537961; 79200,0.010537961; 82800,0.010537961;
82800,0.010537961; 86400,0.010537961]) ;
Modelica.Blocks.Sources.TimeTable PEPlu(table=[0,0; 3600,0; 3600,0; 7200,0; 7200,
0; 10800,0; 10800,0; 14400,0; 14400,0; 18000,0; 18000,0; 21600,0; 21600,
0; 25200,0; 25200,2947.546668; 28800,2947.546668; 28800,2966.686535; 32400,
2966.686535; 32400,2999.864072; 36000,2999.864072; 36000,3087.801241; 39600,
3087.801241; 39600,3195.082124; 43200,3195.082124; 43200,3188.668029; 46800,
3188.668029; 46800,3156.065892; 50400,3156.065892; 50400,3155.199826; 54000,
3155.199826; 54000,3136.04256; 57600,3136.04256; 57600,3087.770321; 61200,
3087.770321; 61200,0; 64800,0; 64800,0; 68400,0; 68400,0; 72000,0; 72000,
0; 75600,0; 75600,0; 79200,0; 79200,0; 82800,0; 82800,0; 86400,0]) ;
Modelica.Blocks.Sources.Pulse p(
nperiod=1,
offset=101325,
amplitude=1141,
width=100,
period=36000,
startTime=25200) ;
Modelica.Blocks.Sources.RealExpression XEvaInMod(y=XEvaIn.y/(1 + XEvaIn.y)) ;
Modelica.Blocks.Sources.RealExpression XEvaOutEPluMod(y=XEvaOutEPlu.y/(1 + XEvaOutEPlu.y)) ;
Modelica.Blocks.Math.Add QCoo_flow ;
equation
connect(sou.ports[1], sinSpeDX.port_a);
connect(sinSpeDX.port_b, sin.ports[1]);
connect(plr_onOff.y, onOff.u);
connect(onOff.y, sinSpeDX.on);
connect(mux.y, sou.X_in);
connect(TCIn.y, TCIn_K.Celsius);
connect(TCIn_K.Kelvin, sinSpeDX.TConIn);
connect(TEvaIn.y, TEvaIn_K.Celsius);
connect(TEvaIn_K.Kelvin, sou.T_in);
connect(TOut.y, TOutMea.u);
connect(TOutMea.y, TOutDegC.Kelvin);
connect(XEvaOut.y, XEvaOutMea.u);
connect(XEvaInMoiAir.y, add.u2);
connect(add.y, mux.u2[1]);
connect(Q_flowSenEPlu.y, shrEPlu.u1);
connect(Q_flowEPlu.y, shrEPlu.u2);
connect(sinSpeDX.P, PMea.u);
connect(p.y, sou.p_in);
connect(XEvaInMod.y, mux.u1[1]);
connect(XEvaInMod.y, add.u1);
connect(sinSpeDX.QSen_flow, Q_flowSenMea.u);
connect(QCoo_flow.y, Q_flowMea.u);
connect(QCoo_flow.u1, sinSpeDX.QSen_flow);
connect(sinSpeDX.QLat_flow, QCoo_flow.u2);
end SingleSpeedEnergyPlus;
Validation model for single speed DX coil with PLR=1
Information
This model validates the model
Buildings.Fluid.HeatExchangers.DXCoils.SingleSpeed.
The difference in results of
TOut and
XOut
at the beginning and end of the simulation is because the mass flow rate is zero.
For zero mass flow rate, EnergyPlus assumes steady state condition,
whereas the Modelica model is a dynamic model and hence the properties at the outlet
are equal to the state variables of the model.
The EnergyPlus results were generated using the example file DXCoilSystemAuto.idf
from EnergyPlus 7.1.
The EnergyPlus results were generated using the example file
DXCoilSystemAuto.idf from EnergyPlus 7.1.
On the summer design day, the PLR is below 1.
A similar effect has been achieved in this example by turning on the coil only for the period
during which it run in EnergyPlus.
This results in on-off cycle and fluctuating results.
To compare the results, the Modelica outputs are averaged over 3600 seconds,
and the EnergyPlus outputs are used with a zero order delay to avoid the time shift in results.
Note that EnergyPlus mass fractions (X) are in mass of water vapor per mass of dry air,
whereas Modelica uses the total mass as a reference. Hence, the EnergyPlus values
are corrected by dividing them by
1+X.
Extends from Modelica.Icons.Example (Icon for runnable examples).
Parameters
| Type | Name | Default | Description |
|---|
| Power | Q_flow_nominal | datCoi.sta[1].nomVal.Q_flow_... | Nominal power [W] |
| MassFlowRate | m_flow_nominal | datCoi.sta[1].nomVal.m_flow_... | Nominal mass flow rate [kg/s] |
| PressureDifference | dp_nominal | 1141 | Pressure drop at m_flow_nominal [Pa] |
Modelica definition
model SingleSpeedPLREnergyPlus
extends Modelica.Icons.Example;
package Medium =
Buildings.Media.Air ;
parameter Modelica.SIunits.Power Q_flow_nominal = datCoi.sta[1].nomVal.Q_flow_nominal ;
parameter Modelica.SIunits.MassFlowRate m_flow_nominal = datCoi.sta[1].nomVal.m_flow_nominal ;
parameter Modelica.SIunits.PressureDifference dp_nominal = 1141 ;
Buildings.Fluid.Sources.Boundary_pT sin(
redeclare package Medium = Medium,
p(displayUnit="Pa") = 101325,
nPorts=1,
T=303.15) ;
Buildings.Fluid.Sources.Boundary_pT sou(
redeclare package Medium = Medium,
p(displayUnit="Pa") = 101325 + dp_nominal,
use_T_in=true,
nPorts=1,
use_p_in=true,
use_X_in=true,
T=299.85) ;
Buildings.Fluid.HeatExchangers.DXCoils.SingleSpeed sinSpeDX(
redeclare package Medium = Medium,
dp_nominal=dp_nominal,
datCoi=datCoi,
T_start=datCoi.sta[1].nomVal.TEvaIn_nominal,
from_dp=true,
computeReevaporation=true,
eva(m(start=0)),
energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial) ;
Modelica.Blocks.Routing.Multiplex2 mux ;
Buildings.Utilities.IO.BCVTB.From_degC TCIn_K ;
Buildings.Utilities.IO.BCVTB.From_degC TEvaIn_K ;
Modelica.Blocks.Math.Mean TOutMea(f=1/3600);
Buildings.Utilities.IO.BCVTB.To_degC TOutDegC;
Modelica.Blocks.Sources.RealExpression TOut(y=sinSpeDX.vol.T);
Modelica.Blocks.Math.Mean XEvaOutMea(f=1/3600);
Modelica.Blocks.Sources.RealExpression XEvaOut(y=
sum(sinSpeDX.vol.Xi));
Modelica.Blocks.Math.Mean Q_flowMea(f=1/3600) ;
Modelica.Blocks.Math.Mean Q_flowSenMea(f=1/3600) ;
Modelica.Blocks.Math.Mean PMea(f=1/3600) ;
Modelica.Blocks.Math.Add add(k1=-1);
Modelica.Blocks.Sources.Constant XEvaInMoiAir(k=1.0) ;
Modelica.Blocks.Math.Division shrEPlu ;
Modelica.Blocks.Sources.Pulse p(
nperiod=1,
offset=101325,
width=100,
period=36000,
startTime=25200,
amplitude=1086) ;
Modelica.Blocks.Sources.RealExpression XEvaInMod(y=XEvaIn.y/(1 + XEvaIn.y)) ;
Modelica.Blocks.Sources.RealExpression XEvaOutEPluMod(y=XEvaOutEPlu.y/(1 + XEvaOutEPlu.y)) ;
Modelica.Blocks.Sources.BooleanTable onOff(startValue=true, table={
0,
25200,
26223.8694421458,
28800,
30457.5364262964,
32400,
34157.5093643325,
36000,
37915.2504828207,
39600,
41687.2390146012,
43200,
45363.3505825759,
46800,
49129.0477925565,
50400,
52764.5288886473,
54000,
56361.5689116996,
57600,
59868.3223307805}) ;
Modelica.Blocks.Sources.TimeTable TCIn(table=[0,21.1; 3600,21.1; 3600,
20.80833333; 7200,20.80833333; 7200,20.89166667; 10800,20.89166667;
10800,21.1; 14400,21.1; 14400,20.80833333; 18000,20.80833333; 18000,
20.6; 21600,20.6; 21600,20.89166667; 25200,20.89166667; 25200,21.45;
28800,21.45; 28800,22.63333333; 32400,22.63333333; 32400,23.3; 36000,
23.3; 36000,25.575; 39600,25.575; 39600,28.19166667; 43200,28.19166667;
43200,27.90833333; 46800,27.90833333; 46800,26.90833333; 50400,
26.90833333; 50400,26.7; 54000,26.7; 54000,26.05833333; 57600,
26.05833333; 57600,24.60833333; 61200,24.60833333; 61200,23.55; 64800,
23.55; 64800,23.3; 68400,23.3; 68400,23.00833333; 72000,23.00833333;
72000,22.8; 75600,22.8; 75600,22.15833333; 79200,22.15833333; 79200,
21.35; 82800,21.35; 82800,21.1; 86400,21.1]) ;
Modelica.Blocks.Sources.TimeTable TEvaIn(table=[
0,29.34948133;
3600,29.34948133;
3600,29.01814876;
7200,29.01814876;
7200,28.76345897;
10800,28.76345897;
10800,28.53396626;
14400,28.53396626;
14400,28.29506697;
18000,28.29506697;
18000,28.08827214;
21600,28.08827214;
21600,28.04639166;
25200,28.04639166;
25200,24.08651629;
28800,24.08651629;
28800,24.09243025;
32400,24.09243025;
32400,24.20516777;
36000,24.20516777;
36000,24.37566383;
39600,24.37566383;
39600,24.56160617;
43200,24.56160617;
43200,24.52393669;
46800,24.52393669;
46800,24.39077471;
50400,24.39077471;
50400,24.33155125;
54000,24.33155125;
54000,24.27362306;
57600,24.27362306;
57600,24.16566121;
61200,24.16566121;
61200,35.62393274;
64800,35.62393274;
64800,32.89683519;
68400,32.89683519;
68400,31.14979083;
72000,31.14979083;
72000,30.65928154;
75600,30.65928154;
75600,30.28912721;
79200,30.28912721;
79200,29.91867206;
82800,29.91867206;
82800,29.61490681;
86400,29.61490681]) ;
Modelica.Blocks.Sources.TimeTable XEvaIn(table=[
0,0.00946;
3600,0.00946;
3600,0.00946;
7200,0.00946;
7200,0.00946;
10800,0.00946;
10800,0.00946;
14400,0.00946;
14400,0.00946;
18000,0.00946;
18000,0.00946;
21600,0.00946;
21600,0.00955;
25200,0.00955;
25200,0.0103;
28800,0.0103;
28800,0.0109;
32400,0.0109;
32400,0.0108;
36000,0.0108;
36000,0.0105;
39600,0.0105;
39600,0.01;
43200,0.01;
43200,0.00969;
46800,0.00969;
46800,0.00947;
50400,0.00947;
50400,0.00926;
54000,0.00926;
54000,0.00923;
57600,0.00923;
57600,0.00937;
61200,0.00937;
61200,0.00936;
64800,0.00936;
64800,0.00946;
68400,0.00946;
68400,0.00946;
72000,0.00946;
72000,0.00946;
75600,0.00946;
75600,0.00946;
79200,0.00946;
79200,0.00946;
82800,0.00946;
82800,0.00946;
86400,0.00946]) ;
Modelica.Blocks.Sources.TimeTable TOutEPlu_ori(table=[0,29.34948133; 3600,29.34948133;
3600,29.01814876; 7200,29.01814876; 7200,28.76345897; 10800,28.76345897;
10800,28.53396626; 14400,28.53396626; 14400,28.29506697; 18000,28.29506697;
18000,28.08827214; 21600,28.08827214; 21600,28.04639166; 25200,28.04639166;
25200,19.79102221; 28800,19.79102221; 28800,17.58304653; 32400,17.58304653;
32400,17.35471965; 36000,17.35471965; 36000,16.95320861; 39600,16.95320861;
39600,16.4388043; 43200,16.4388043; 43200,16.03301122; 46800,16.03301122;
46800,15.41071946; 50400,15.41071946; 50400,15.15437515; 54000,15.15437515;
54000,15.09543443; 57600,15.09543443; 57600,15.3159498; 61200,15.3159498;
61200,35.62393274; 64800,35.62393274; 64800,32.89683519; 68400,32.89683519;
68400,31.14979083; 72000,31.14979083; 72000,30.65928154; 75600,30.65928154;
75600,30.28912721; 79200,30.28912721; 79200,29.91867206; 82800,29.91867206;
82800,29.61490681; 86400,29.61490681]) ;
Modelica.Blocks.Sources.TimeTable PEPlu_ori(table=[0,0; 3600,0; 3600,0; 7200,
0; 7200,0; 10800,0; 10800,0; 14400,0; 14400,0; 18000,0; 18000,0; 21600,
0; 21600,0; 25200,0; 25200,2221.47212; 28800,2221.47212; 28800,
3595.947729; 32400,3595.947729; 32400,3819.11052; 36000,3819.11052;
36000,4235.566014; 39600,4235.566014; 39600,4714.070326; 43200,
4714.070326; 43200,4835.805362; 46800,4835.805362; 46800,5089.357992;
50400,5089.357992; 50400,5132.912713; 54000,5132.912713; 54000,
5082.720823; 57600,5082.720823; 57600,4820.015593; 61200,4820.015593;
61200,0; 64800,0; 64800,0; 68400,0; 68400,0; 72000,0; 72000,0; 75600,0;
75600,0; 79200,0; 79200,0; 82800,0; 82800,0; 86400,0]) ;
Modelica.Blocks.Sources.TimeTable XEvaOutEPlu_ori(table=[0,0.009460927; 3600,0.009460927;
3600,0.009460927; 7200,0.009460927; 7200,0.009460927; 10800,0.009460927;
10800,0.009460927; 14400,0.009460927; 14400,0.009460927; 18000,0.009460927;
18000,0.009460927; 21600,0.009460927; 21600,0.009553929; 25200,0.009553929;
25200,0.010316263; 28800,0.010316263; 28800,0.010677981; 32400,0.010677981;
32400,0.010521771; 36000,0.010521771; 36000,0.010225222; 39600,0.010225222;
39600,0.009821415; 43200,0.009821415; 43200,0.009523837; 46800,0.009523837;
46800,0.009220467; 50400,0.009220467; 50400,0.009042737; 54000,0.009042737;
54000,0.009012184; 57600,0.009012184; 57600,0.009145645; 61200,0.009145645;
61200,0.009361285; 64800,0.009361285; 64800,0.009459829; 68400,0.009459829;
68400,0.009459801; 72000,0.009459801; 72000,0.009459801; 75600,0.009459801;
75600,0.009459801; 79200,0.009459801; 79200,0.009459801; 82800,0.009459801;
82800,0.009459801; 86400,0.009459801]) ;
Modelica.Blocks.Sources.TimeTable Q_flowSenEPlu_ori(table=[0,0; 3600,0; 3600,0;
7200,0; 7200,0; 10800,0; 10800,0; 14400,0; 14400,0; 18000,0; 18000,0; 21600,
0; 21600,0; 25200,0; 25200,7378.442557; 28800,7378.442557; 28800,11190.03413;
32400,11190.03413; 32400,11772.99874; 36000,11772.99874; 36000,12749.11676;
39600,12749.11676; 39600,13941.844; 43200,13941.844; 43200,14565.84942;
46800,14565.84942; 46800,15396.44898; 50400,15396.44898; 50400,15729.34223;
54000,15729.34223; 54000,15730.20543; 57600,15730.20543; 57600,15170.91533;
61200,15170.91533; 61200,0; 64800,0; 64800,0; 68400,0; 68400,0; 72000,0;
72000,0; 75600,0; 75600,0; 79200,0; 79200,0; 82800,0; 82800,0; 86400,0]) ;
Modelica.Blocks.Sources.TimeTable Q_flowEPlu_ori(table=[0,0; 3600,0; 3600,
0; 7200,0; 7200,0; 10800,0; 10800,0; 14400,0; 14400,
0; 18000,0; 18000,0; 21600,0; 21600,0; 25200,-1e-9;
25200,-7464.76568; 28800,-7464.76568; 28800,-12134.51902; 32400,-12134.51902;
32400,-12829.73888; 36000,-12829.73888; 36000,-13827.82263; 39600,-13827.82263;
39600,-14802.70071; 43200,-14802.70071; 43200,-15271.18519; 46800,-15271.18519;
46800,-16441.6341; 50400,-16441.6341; 50400,-16638.80981; 54000,-16638.80981;
54000,-16649.7802; 57600,-16649.7802; 57600,-16109.92984; 61200,-16109.92984;
61200,0; 64800,0; 64800,0; 68400,0; 68400,0; 72000,0;
72000,0; 75600,0; 75600,0; 79200,0; 79200,0; 82800,0;
82800,0; 86400,0]) ;
Data.Generic.DXCoil
datCoi(nSta=1, sta={
Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.Stage(
spe=1800/60,
nomVal=
Buildings.Fluid.HeatExchangers.DXCoils.Data.Generic.BaseClasses.NominalValues(
Q_flow_nominal=-25237.66,
COP_nominal=3,
SHR_nominal=0.775047,
m_flow_nominal=1.72,
tWet=1000,
gamma=1.5),
perCur=
Buildings.Fluid.HeatExchangers.DXCoils.Examples.PerformanceCurves.Curve_II())}) ;
Modelica.Blocks.Math.Add QCoo_flow ;
UnitDelay PEPlu(samplePeriod=3600);
UnitDelay Q_flowSenEPlu(samplePeriod=3600);
UnitDelay Q_flowEPlu(samplePeriod=3600);
UnitDelay TOutEPlu(samplePeriod=3600, y_start=29.34948133);
UnitDelay XEvaOutEPlu(samplePeriod=3600);
Modelica.Blocks.Math.MultiSum multiSum(nu=2);
Modelica.Blocks.Sources.Constant small(k=-1e-9) ;
protected
block UnitDelay
extends Modelica.Blocks.Discrete.UnitDelay(
firstTrigger(start=false, fixed=true));
end UnitDelay;
equation
connect(sou.ports[1], sinSpeDX.port_a);
connect(sinSpeDX.port_b, sin.ports[1]);
connect(mux.y, sou.X_in);
connect(TCIn_K.Kelvin, sinSpeDX.TConIn);
connect(TEvaIn_K.Kelvin, sou.T_in);
connect(TOut.y, TOutMea.u);
connect(TOutMea.y, TOutDegC.Kelvin);
connect(XEvaOut.y, XEvaOutMea.u);
connect(XEvaInMoiAir.y, add.u2);
connect(add.y, mux.u2[1]);
connect(sinSpeDX.P, PMea.u);
connect(p.y, sou.p_in);
connect(XEvaInMod.y, mux.u1[1]);
connect(XEvaInMod.y, add.u1);
connect(onOff.y, sinSpeDX.on);
connect(TCIn.y, TCIn_K.Celsius);
connect(TEvaIn.y, TEvaIn_K.Celsius);
connect(sinSpeDX.QSen_flow, Q_flowSenMea.u);
connect(QCoo_flow.y, Q_flowMea.u);
connect(QCoo_flow.u1, sinSpeDX.QSen_flow);
connect(sinSpeDX.QLat_flow, QCoo_flow.u2);
connect(PEPlu_ori.y, PEPlu.u);
connect(Q_flowSenEPlu_ori.y, Q_flowSenEPlu.u);
connect(Q_flowSenEPlu.y, shrEPlu.u1);
connect(Q_flowEPlu_ori.y, Q_flowEPlu.u);
connect(TOutEPlu_ori.y, TOutEPlu.u);
connect(XEvaOutEPlu_ori.y, XEvaOutEPlu.u);
connect(multiSum.y, shrEPlu.u2);
connect(small.y, multiSum.u[1]);
connect(Q_flowEPlu.y, multiSum.u[2]);
end SingleSpeedPLREnergyPlus;
Information
Extends from Modelica.Blocks.Discrete.UnitDelay (Unit Delay Block).
Parameters
| Type | Name | Default | Description |
|---|
| Real | y_start | 0 | Initial value of output signal |
| Time | samplePeriod | | Sample period of component [s] |
| Time | startTime | 0 | First sample time instant [s] |
Connectors
| Type | Name | Description |
|---|
| input RealInput | u | Continuous input signal |
| output RealOutput | y | Continuous output signal |
Modelica definition
http://simulationresearch.lbl.gov/modelica
Buildings.Fluid.HeatExchangers.DXCoils.Validation.SingleSpeedEnergyPlus
Buildings.Fluid.HeatExchangers.DXCoils.Validation.SingleSpeedPLREnergyPlus.UnitDelay