Buildings.Fluid.CHPs.Data
Information
This package contains the common parameters that are used to specify the performance data for the CHP model Buildings.Fluid.CHPs.ThermalElectricalFollowing.
Extends from Modelica.Icons.MaterialPropertiesPackage (Icon for package containing property classes).
Package Content
| Name | Description |
|---|---|
 Generic
|
Generic data for CHP models |
| Senertech5_5kW
|
SENERTECH5_5kW |
| ValidationData1
|
Validation data set 1 |
| ValidationData2
|
Validation data set 2 |
| ValidationData3
|
Validation data set 3 |
Buildings.Fluid.CHPs.Data.Generic
Generic data for CHP models
Information
This is the base record for CHP models.
Extends from Modelica.Icons.Record (Icon for records).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | coeEtaQ[27] | Vector of coefficients used to calculate thermal efficiency of the engine. The independent variable x1 is the steady-state power output, x2 is the cooling water mass flow rate, x3 is the cooling water inlet temperature. From index 1 to 27, coefficients correspond to the following terms: constant, x1^2, x1, x2^2, x2, x3^2, x3, x1^2*x2^2, x1*x2, x1*x2^2, x1^2*x2, x1^2*x3^2, x1*x3, x1*x3^2, x1^2*x3, x2^2*x3^2, x2*x3, x2*x3^2, x2^2*x3, x1^2*x2^2*x3^2, x1^2*x2^2*x3, x1^2*x2*x3^2, x1*x2^2*x3^2, x1^2*x2*x3, x1*x2^2*x3, x1*x2*x3^2, x1*x2*x3 | |
| Real | coeEtaE[27] | Vector of coefficients used to calculate electrical conversion efficiency of the engine. The independent variables and mapping of the coefficients to the polynomial terms are the same as for the thermal efficiency | |
| Boolean | compute_coolingWaterFlowRate | true | If true, then an empirical correlation is used to calculate cooling water mass flow rate based on internal control |
| Real | coeMasWat[6] | Vector of coefficients used to calculate cooling water mass flow rate in case coolingWaterControl is true. The independent variable x1 is the steady-state power output, x2 is the cooling water mass flow rate. From index 1 to 6, coefficients correspond to the following terms: constant, x1, x1^2, x2, x2^2, x1*x2 | |
| Real | coeMasAir[3] | Vector of coefficients used to calculate air mass flow rate. The independent variable x1 is the fuel mass flow rate. From index 1 to 3, coefficients correspond to the following terms: constant, x1, x1^2 | |
| ThermalConductance | UAHex | Thermal conductance between the engine and cooling water [W/K] | |
| ThermalConductance | UALos | Thermal conductance between the engine and surroundings [W/K] | |
| HeatCapacity | capEng | Thermal capacitance of the engine control volume [J/K] | |
| HeatCapacity | capHeaRec | Thermal capacitance of heat recovery portion [J/K] | |
| Boolean | warmUpByTimeDelay | true | If true, the plant will be in warm-up mode depending on the delay time, otherwise depending on engine temperature |
| Time | timeDelayStart | 60 | Time delay between activation and power generation [s] |
| Temperature | TEngNom | 273.15 + 100 | Nominal engine operating temperature [K] |
| Boolean | coolDownOptional | false | If true, cooldown is optional. The model will complete cooldown before switching to standby, but if reactivated during cooldown period, it will immediately switch into warm-up mode |
| Time | timeDelayCool | 0 | Cooldown period [s] |
| Power | PEleMax | Maximum power output [W] | |
| Power | PEleMin | 0 | Minimum power output [W] |
| MassFlowRate | mWatMin_flow | 0 | Minimum cooling water mass flow rate [kg/s] |
| Temperature | TWatMax | 373.15 | Maximum cooling water temperature [K] |
| Boolean | use_powerRateLimit | false | If true, the rate at which net power output can change is limited |
| Boolean | use_fuelRateLimit | false | If true, the rate at which fuel mass flow rate can change is limited |
| Real | dPEleMax | dPEleMax(final unit="W/s") | Maximum rate at which net power output can change [W/s] |
| Real | dmFueMax_flow | dmFueMax_flow(final unit="kg... | Maximum rate at which fuel mass flow rate can change [kg/s2] |
| Power | PStaBy | Standby electric power [W] | |
| Power | PCooDow | Cooldown electric power [W] | |
| Real | LHVFue | 47.614e6 | Lower heating value of fuel [J/kg] |
| Real | kF | 1 | Warm-up fuel coefficient [1] |
| Real | kP | 1 | Warm-up power coefficient [1] |
| Real | rFue | 10 | Warm-up maximum fuel flow ratio [1] |
Modelica definition
record Generic "Generic data for CHP models"
extends Modelica.Icons.Record;
parameter Real[27] coeEtaQ
"Vector of coefficients used to calculate thermal efficiency of the engine.
The independent variable x1 is the steady-state power output,
x2 is the cooling water mass flow rate, x3 is the cooling water inlet temperature.
From index 1 to 27, coefficients correspond to the following terms:
constant, x1^2, x1, x2^2, x2, x3^2, x3,
x1^2*x2^2, x1*x2, x1*x2^2, x1^2*x2,
x1^2*x3^2, x1*x3, x1*x3^2, x1^2*x3,
x2^2*x3^2, x2*x3, x2*x3^2, x2^2*x3,
x1^2*x2^2*x3^2, x1^2*x2^2*x3, x1^2*x2*x3^2, x1*x2^2*x3^2,
x1^2*x2*x3, x1*x2^2*x3, x1*x2*x3^2, x1*x2*x3";
parameter Real[27] coeEtaE
"Vector of coefficients used to calculate electrical conversion efficiency
of the engine. The independent variables and mapping of the coefficients
to the polynomial terms are the same as for the thermal efficiency";
parameter Boolean compute_coolingWaterFlowRate=true
"If true, then an empirical correlation is used to calculate
cooling water mass flow rate based on internal control";
parameter Real[6] coeMasWat
"Vector of coefficients used to calculate cooling water mass flow rate
in case coolingWaterControl is true.
The independent variable x1 is the steady-state power output,
x2 is the cooling water mass flow rate.
From index 1 to 6, coefficients correspond to the following terms:
constant, x1, x1^2, x2, x2^2, x1*x2";
parameter Real[3] coeMasAir
"Vector of coefficients used to calculate air mass flow rate.
The independent variable x1 is the fuel mass flow rate.
From index 1 to 3, coefficients correspond to the following terms:
constant, x1, x1^2";
parameter Modelica.SIunits.ThermalConductance UAHex
"Thermal conductance between the engine and cooling water";
parameter Modelica.SIunits.ThermalConductance UALos
"Thermal conductance between the engine and surroundings";
parameter Modelica.SIunits.HeatCapacity capEng
"Thermal capacitance of the engine control volume";
parameter Modelica.SIunits.HeatCapacity capHeaRec
"Thermal capacitance of heat recovery portion";
parameter Boolean warmUpByTimeDelay=true
"If true, the plant will be in warm-up mode depending on the delay time,
otherwise depending on engine temperature ";
parameter Modelica.SIunits.Time timeDelayStart = 60
"Time delay between activation and power generation";
parameter Modelica.SIunits.Temperature TEngNom = 273.15+100
"Nominal engine operating temperature";
parameter Boolean coolDownOptional=false
"If true, cooldown is optional. The model will complete cooldown before
switching to standby, but if reactivated during cooldown period, it
will immediately switch into warm-up mode";
parameter Modelica.SIunits.Time timeDelayCool = 0
"Cooldown period";
parameter Modelica.SIunits.Power PEleMax
"Maximum power output";
parameter Modelica.SIunits.Power PEleMin = 0
"Minimum power output";
parameter Modelica.SIunits.MassFlowRate mWatMin_flow = 0
"Minimum cooling water mass flow rate";
parameter Modelica.SIunits.Temperature TWatMax=373.15
"Maximum cooling water temperature";
parameter Boolean use_powerRateLimit=false
"If true, the rate at which net power output can change is limited";
parameter Boolean use_fuelRateLimit=false
"If true, the rate at which fuel mass flow rate can change is limited";
parameter Real dPEleMax(final unit="W/s")
"Maximum rate at which net power output can change";
parameter Real dmFueMax_flow(final unit="kg/s2")
"Maximum rate at which fuel mass flow rate can change";
parameter Modelica.SIunits.Power PStaBy
"Standby electric power";
parameter Modelica.SIunits.Power PCooDow
"Cooldown electric power";
parameter Real LHVFue(final unit="J/kg") = 47.614e6
"Lower heating value of fuel";
parameter Real kF(final unit="1") = 1
"Warm-up fuel coefficient";
parameter Real kP(final unit="1") = 1
"Warm-up power coefficient";
parameter Real rFue(final unit="1") = 10
"Warm-up maximum fuel flow ratio";
end Generic;
Buildings.Fluid.CHPs.Data.Senertech5_5kW
SENERTECH5_5kW
Information
This is the record of parameters for CHP models from EnergyPlus example
MicroCogeneration.
Extends from Buildings.Fluid.CHPs.Data.Generic (Generic data for CHP models).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | coeEtaQ[27] | {0.66,0,0,0,0,0,0,0,0,0,0,0,... | Vector of coefficients used to calculate thermal efficiency of the engine. The independent variable x1 is the steady-state power output, x2 is the cooling water mass flow rate, x3 is the cooling water inlet temperature. From index 1 to 27, coefficients correspond to the following terms: constant, x1^2, x1, x2^2, x2, x3^2, x3, x1^2*x2^2, x1*x2, x1*x2^2, x1^2*x2, x1^2*x3^2, x1*x3, x1*x3^2, x1^2*x3, x2^2*x3^2, x2*x3, x2*x3^2, x2^2*x3, x1^2*x2^2*x3^2, x1^2*x2^2*x3, x1^2*x2*x3^2, x1*x2^2*x3^2, x1^2*x2*x3, x1*x2^2*x3, x1*x2*x3^2, x1*x2*x3 |
| Real | coeEtaE[27] | {0.27,0,0,0,0,0,0,0,0,0,0,0,... | Vector of coefficients used to calculate electrical conversion efficiency of the engine. The independent variables and mapping of the coefficients to the polynomial terms are the same as for the thermal efficiency |
| Boolean | compute_coolingWaterFlowRate | true | If true, then an empirical correlation is used to calculate cooling water mass flow rate based on internal control |
| Real | coeMasWat[6] | {0.4,0,0,0,0,0} | Vector of coefficients used to calculate cooling water mass flow rate in case coolingWaterControl is true. The independent variable x1 is the steady-state power output, x2 is the cooling water mass flow rate. From index 1 to 6, coefficients correspond to the following terms: constant, x1, x1^2, x2, x2^2, x1*x2 |
| Real | coeMasAir[3] | {0,2,-10000} | Vector of coefficients used to calculate air mass flow rate. The independent variable x1 is the fuel mass flow rate. From index 1 to 3, coefficients correspond to the following terms: constant, x1, x1^2 |
| ThermalConductance | UAHex | 741 | Thermal conductance between the engine and cooling water [W/K] |
| ThermalConductance | UALos | 13.7 | Thermal conductance between the engine and surroundings [W/K] |
| HeatCapacity | capEng | 63605.6 | Thermal capacitance of the engine control volume [J/K] |
| HeatCapacity | capHeaRec | 1000.7 | Thermal capacitance of heat recovery portion [J/K] |
| Boolean | warmUpByTimeDelay | true | If true, the plant will be in warm-up mode depending on the delay time, otherwise depending on engine temperature |
| Time | timeDelayStart | 60 | Time delay between activation and power generation [s] |
| Temperature | TEngNom | 273.15 + 100 | Nominal engine operating temperature [K] |
| Boolean | coolDownOptional | true | If true, cooldown is optional. The model will complete cooldown before switching to standby, but if reactivated during cooldown period, it will immediately switch into warm-up mode |
| Time | timeDelayCool | 60 | Cooldown period [s] |
| Power | PEleMax | 5500 | Maximum power output [W] |
| Power | PEleMin | 0 | Minimum power output [W] |
| MassFlowRate | mWatMin_flow | 0 | Minimum cooling water mass flow rate [kg/s] |
| Temperature | TWatMax | 273.15 + 80 | Maximum cooling water temperature [K] |
| Boolean | use_powerRateLimit | true | If true, the rate at which net power output can change is limited |
| Boolean | use_fuelRateLimit | true | If true, the rate at which fuel mass flow rate can change is limited |
| Real | dPEleMax | 1000000000 | Maximum rate at which net power output can change [W/s] |
| Real | dmFueMax_flow | 1000000000 | Maximum rate at which fuel mass flow rate can change [kg/s2] |
| Power | PStaBy | 0 | Standby electric power [W] |
| Power | PCooDow | 0 | Cooldown electric power [W] |
| Real | LHVFue | 47.614e6 | Lower heating value of fuel [J/kg] |
| Real | kF | 1 | Warm-up fuel coefficient [1] |
| Real | kP | 1 | Warm-up power coefficient [1] |
| Real | rFue | 10 | Warm-up maximum fuel flow ratio [1] |
Modelica definition
record Senertech5_5kW "SENERTECH5_5kW"
extends Buildings.Fluid.CHPs.Data.Generic(
coeEtaQ={0.66,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
coeEtaE={0.27,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
compute_coolingWaterFlowRate=true,
coeMasWat={0.4,0,0,0,0,0},
coeMasAir={0,2,-10000},
UAHex=741,
UALos=13.7,
capEng=63605.6,
capHeaRec=1000.7,
warmUpByTimeDelay=true,
timeDelayStart=60,
coolDownOptional=true,
timeDelayCool=60,
PEleMax=5500,
PEleMin=0,
mWatMin_flow=0,
TWatMax=273.15 + 80,
use_powerRateLimit=true,
use_fuelRateLimit=true,
dPEleMax=1000000000,
dmFueMax_flow=1000000000,
PStaBy=0,
PCooDow=0,
LHVFue=47.614e6);
end Senertech5_5kW;
Buildings.Fluid.CHPs.Data.ValidationData1
Validation data set 1
Information
This is the record of parameters for CHP models derived from the parameters of
EnergyPlus example MicroCogeneration, with following changes:
- changed the condition of the warm-up mode, from depending on the time delay to engine temperature.
-
changed the minimum cooling water flow rate
mWatMin_flowfrom 0 to 0.1 kg/s. -
limited the maximum rate of change in the power output
dPEleMaxand the maximum rate of change in the fuel mass flow ratedmFueMax_flow, by reducing from 1e+9 to 200 and from 1e+9 to 2 respectively. -
changed electric power consumptions during standby
PStaByand cool-downPCooDowmode from 0 W to 100 W and 200 W respectively.
Extends from Buildings.Fluid.CHPs.Data.Generic (Generic data for CHP models).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | coeEtaQ[27] | {0.66,0,0,0,0,0,0,0,0,0,0,0,... | Vector of coefficients used to calculate thermal efficiency of the engine. The independent variable x1 is the steady-state power output, x2 is the cooling water mass flow rate, x3 is the cooling water inlet temperature. From index 1 to 27, coefficients correspond to the following terms: constant, x1^2, x1, x2^2, x2, x3^2, x3, x1^2*x2^2, x1*x2, x1*x2^2, x1^2*x2, x1^2*x3^2, x1*x3, x1*x3^2, x1^2*x3, x2^2*x3^2, x2*x3, x2*x3^2, x2^2*x3, x1^2*x2^2*x3^2, x1^2*x2^2*x3, x1^2*x2*x3^2, x1*x2^2*x3^2, x1^2*x2*x3, x1*x2^2*x3, x1*x2*x3^2, x1*x2*x3 |
| Real | coeEtaE[27] | {0.27,0,0,0,0,0,0,0,0,0,0,0,... | Vector of coefficients used to calculate electrical conversion efficiency of the engine. The independent variables and mapping of the coefficients to the polynomial terms are the same as for the thermal efficiency |
| Boolean | compute_coolingWaterFlowRate | true | If true, then an empirical correlation is used to calculate cooling water mass flow rate based on internal control |
| Real | coeMasWat[6] | {0.4,0,0,0,0,0} | Vector of coefficients used to calculate cooling water mass flow rate in case coolingWaterControl is true. The independent variable x1 is the steady-state power output, x2 is the cooling water mass flow rate. From index 1 to 6, coefficients correspond to the following terms: constant, x1, x1^2, x2, x2^2, x1*x2 |
| Real | coeMasAir[3] | {0,2,-10000} | Vector of coefficients used to calculate air mass flow rate. The independent variable x1 is the fuel mass flow rate. From index 1 to 3, coefficients correspond to the following terms: constant, x1, x1^2 |
| ThermalConductance | UAHex | 741 | Thermal conductance between the engine and cooling water [W/K] |
| ThermalConductance | UALos | 13.7 | Thermal conductance between the engine and surroundings [W/K] |
| HeatCapacity | capEng | 63605.6 | Thermal capacitance of the engine control volume [J/K] |
| HeatCapacity | capHeaRec | 1000.7 | Thermal capacitance of heat recovery portion [J/K] |
| Boolean | warmUpByTimeDelay | true | If true, the plant will be in warm-up mode depending on the delay time, otherwise depending on engine temperature |
| Time | timeDelayStart | 60 | Time delay between activation and power generation [s] |
| Temperature | TEngNom | 273.15 + 100 | Nominal engine operating temperature [K] |
| Boolean | coolDownOptional | true | If true, cooldown is optional. The model will complete cooldown before switching to standby, but if reactivated during cooldown period, it will immediately switch into warm-up mode |
| Time | timeDelayCool | 60 | Cooldown period [s] |
| Power | PEleMax | 5500 | Maximum power output [W] |
| Power | PEleMin | 0 | Minimum power output [W] |
| MassFlowRate | mWatMin_flow | 0.1 | Minimum cooling water mass flow rate [kg/s] |
| Temperature | TWatMax | 273.15 + 80 | Maximum cooling water temperature [K] |
| Boolean | use_powerRateLimit | true | If true, the rate at which net power output can change is limited |
| Boolean | use_fuelRateLimit | true | If true, the rate at which fuel mass flow rate can change is limited |
| Real | dPEleMax | 200 | Maximum rate at which net power output can change [W/s] |
| Real | dmFueMax_flow | 2 | Maximum rate at which fuel mass flow rate can change [kg/s2] |
| Power | PStaBy | 100 | Standby electric power [W] |
| Power | PCooDow | 200 | Cooldown electric power [W] |
| Real | LHVFue | 47.614e6 | Lower heating value of fuel [J/kg] |
| Real | kF | 1 | Warm-up fuel coefficient [1] |
| Real | kP | 1 | Warm-up power coefficient [1] |
| Real | rFue | 10 | Warm-up maximum fuel flow ratio [1] |
Modelica definition
record ValidationData1 "Validation data set 1"
extends Buildings.Fluid.CHPs.Data.Generic(
coeEtaQ={0.66,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
coeEtaE={0.27,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
compute_coolingWaterFlowRate=true,
coeMasWat={0.4,0,0,0,0,0},
coeMasAir={0,2,-10000},
UAHex=741,
UALos=13.7,
capEng=63605.6,
capHeaRec=1000.7,
warmUpByTimeDelay=true,
timeDelayStart=60,
coolDownOptional=true,
timeDelayCool=60,
PEleMax=5500,
PEleMin=0,
mWatMin_flow=0.1,
TWatMax=273.15 + 80,
use_powerRateLimit=true,
use_fuelRateLimit=true,
dPEleMax=200,
dmFueMax_flow=2,
PStaBy=100,
PCooDow=200,
LHVFue=47.614e6);
end ValidationData1;
Buildings.Fluid.CHPs.Data.ValidationData2
Validation data set 2
Information
This is the record of parameters for CHP models derived from the parameters of
EnergyPlus example MicroCogeneration, with following changes:
-
changed the minimum cooling water flow rate
mWatMin_flowfrom 0 to 0.1 kg/s. -
limited the maximum net electrical power rate of change
dPEleMaxand the maximum fuel flow rate of changedmFueMax_flow, by reducing from 1e+9 to 200 and from 1e+9 to 2 respectively. -
changed electric power consumptions during standby
PStaByand cool-downPCooDowmode from 0 W to 100 W and 200 W respectively.
Extends from Buildings.Fluid.CHPs.Data.Generic (Generic data for CHP models).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | coeEtaQ[27] | {0.66,0,0,0,0,0,0,0,0,0,0,0,... | Vector of coefficients used to calculate thermal efficiency of the engine. The independent variable x1 is the steady-state power output, x2 is the cooling water mass flow rate, x3 is the cooling water inlet temperature. From index 1 to 27, coefficients correspond to the following terms: constant, x1^2, x1, x2^2, x2, x3^2, x3, x1^2*x2^2, x1*x2, x1*x2^2, x1^2*x2, x1^2*x3^2, x1*x3, x1*x3^2, x1^2*x3, x2^2*x3^2, x2*x3, x2*x3^2, x2^2*x3, x1^2*x2^2*x3^2, x1^2*x2^2*x3, x1^2*x2*x3^2, x1*x2^2*x3^2, x1^2*x2*x3, x1*x2^2*x3, x1*x2*x3^2, x1*x2*x3 |
| Real | coeEtaE[27] | {0.27,0,0,0,0,0,0,0,0,0,0,0,... | Vector of coefficients used to calculate electrical conversion efficiency of the engine. The independent variables and mapping of the coefficients to the polynomial terms are the same as for the thermal efficiency |
| Boolean | compute_coolingWaterFlowRate | true | If true, then an empirical correlation is used to calculate cooling water mass flow rate based on internal control |
| Real | coeMasWat[6] | {0.4,0,0,0,0,0} | Vector of coefficients used to calculate cooling water mass flow rate in case coolingWaterControl is true. The independent variable x1 is the steady-state power output, x2 is the cooling water mass flow rate. From index 1 to 6, coefficients correspond to the following terms: constant, x1, x1^2, x2, x2^2, x1*x2 |
| Real | coeMasAir[3] | {0,2,-10000} | Vector of coefficients used to calculate air mass flow rate. The independent variable x1 is the fuel mass flow rate. From index 1 to 3, coefficients correspond to the following terms: constant, x1, x1^2 |
| ThermalConductance | UAHex | 741 | Thermal conductance between the engine and cooling water [W/K] |
| ThermalConductance | UALos | 13.7 | Thermal conductance between the engine and surroundings [W/K] |
| HeatCapacity | capEng | 63605.6 | Thermal capacitance of the engine control volume [J/K] |
| HeatCapacity | capHeaRec | 1000.7 | Thermal capacitance of heat recovery portion [J/K] |
| Boolean | warmUpByTimeDelay | false | If true, the plant will be in warm-up mode depending on the delay time, otherwise depending on engine temperature |
| Time | timeDelayStart | 0 | Time delay between activation and power generation [s] |
| Temperature | TEngNom | 273.15 + 100 | Nominal engine operating temperature [K] |
| Boolean | coolDownOptional | true | If true, cooldown is optional. The model will complete cooldown before switching to standby, but if reactivated during cooldown period, it will immediately switch into warm-up mode |
| Time | timeDelayCool | 60 | Cooldown period [s] |
| Power | PEleMax | 5500 | Maximum power output [W] |
| Power | PEleMin | 0 | Minimum power output [W] |
| MassFlowRate | mWatMin_flow | 0.1 | Minimum cooling water mass flow rate [kg/s] |
| Temperature | TWatMax | 273.15 + 80 | Maximum cooling water temperature [K] |
| Boolean | use_powerRateLimit | true | If true, the rate at which net power output can change is limited |
| Boolean | use_fuelRateLimit | true | If true, the rate at which fuel mass flow rate can change is limited |
| Real | dPEleMax | 200 | Maximum rate at which net power output can change [W/s] |
| Real | dmFueMax_flow | 2 | Maximum rate at which fuel mass flow rate can change [kg/s2] |
| Power | PStaBy | 100 | Standby electric power [W] |
| Power | PCooDow | 200 | Cooldown electric power [W] |
| Real | LHVFue | 47.614e6 | Lower heating value of fuel [J/kg] |
| Real | kF | 1 | Warm-up fuel coefficient [1] |
| Real | kP | 1 | Warm-up power coefficient [1] |
| Real | rFue | 10 | Warm-up maximum fuel flow ratio [1] |
Modelica definition
record ValidationData2 "Validation data set 2"
extends Buildings.Fluid.CHPs.Data.Generic(
coeEtaQ={0.66,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
coeEtaE={0.27,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
compute_coolingWaterFlowRate=true,
coeMasWat={0.4,0,0,0,0,0},
coeMasAir={0,2,-10000},
UAHex=741,
UALos=13.7,
capEng=63605.6,
capHeaRec=1000.7,
warmUpByTimeDelay=false,
timeDelayStart=0,
coolDownOptional=true,
timeDelayCool=60,
TEngNom=273.15 + 100,
PEleMax=5500,
PEleMin=0,
mWatMin_flow=0.1,
TWatMax=273.15 + 80,
use_powerRateLimit=true,
use_fuelRateLimit=true,
dPEleMax=200,
dmFueMax_flow=2,
PStaBy=100,
PCooDow=200,
LHVFue=47.614e6);
end ValidationData2;
Buildings.Fluid.CHPs.Data.ValidationData3
Validation data set 3
Information
This is the record of parameters for CHP models derived from the parameters of
EnergyPlus example MicroCogeneration, with following changes:
- The rate of change in the net electrical power and in the fuel flow rate, becomes unlimitted.
-
changed electric power consumptions during standby
PStaByand cool-downPCooDowmode from 0 W to 100 W and 200 W respectively.
Extends from Buildings.Fluid.CHPs.Data.Generic (Generic data for CHP models).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | coeEtaQ[27] | {0.66,0,0,0,0,0,0,0,0,0,0,0,... | Vector of coefficients used to calculate thermal efficiency of the engine. The independent variable x1 is the steady-state power output, x2 is the cooling water mass flow rate, x3 is the cooling water inlet temperature. From index 1 to 27, coefficients correspond to the following terms: constant, x1^2, x1, x2^2, x2, x3^2, x3, x1^2*x2^2, x1*x2, x1*x2^2, x1^2*x2, x1^2*x3^2, x1*x3, x1*x3^2, x1^2*x3, x2^2*x3^2, x2*x3, x2*x3^2, x2^2*x3, x1^2*x2^2*x3^2, x1^2*x2^2*x3, x1^2*x2*x3^2, x1*x2^2*x3^2, x1^2*x2*x3, x1*x2^2*x3, x1*x2*x3^2, x1*x2*x3 |
| Real | coeEtaE[27] | {0.27,0,0,0,0,0,0,0,0,0,0,0,... | Vector of coefficients used to calculate electrical conversion efficiency of the engine. The independent variables and mapping of the coefficients to the polynomial terms are the same as for the thermal efficiency |
| Boolean | compute_coolingWaterFlowRate | true | If true, then an empirical correlation is used to calculate cooling water mass flow rate based on internal control |
| Real | coeMasWat[6] | {0.4,0,0,0,0,0} | Vector of coefficients used to calculate cooling water mass flow rate in case coolingWaterControl is true. The independent variable x1 is the steady-state power output, x2 is the cooling water mass flow rate. From index 1 to 6, coefficients correspond to the following terms: constant, x1, x1^2, x2, x2^2, x1*x2 |
| Real | coeMasAir[3] | {0,2,-10000} | Vector of coefficients used to calculate air mass flow rate. The independent variable x1 is the fuel mass flow rate. From index 1 to 3, coefficients correspond to the following terms: constant, x1, x1^2 |
| ThermalConductance | UAHex | 741 | Thermal conductance between the engine and cooling water [W/K] |
| ThermalConductance | UALos | 13.7 | Thermal conductance between the engine and surroundings [W/K] |
| HeatCapacity | capEng | 63605.6 | Thermal capacitance of the engine control volume [J/K] |
| HeatCapacity | capHeaRec | 1000.7 | Thermal capacitance of heat recovery portion [J/K] |
| Boolean | warmUpByTimeDelay | true | If true, the plant will be in warm-up mode depending on the delay time, otherwise depending on engine temperature |
| Time | timeDelayStart | 60 | Time delay between activation and power generation [s] |
| Temperature | TEngNom | 273.15 + 100 | Nominal engine operating temperature [K] |
| Boolean | coolDownOptional | true | If true, cooldown is optional. The model will complete cooldown before switching to standby, but if reactivated during cooldown period, it will immediately switch into warm-up mode |
| Time | timeDelayCool | 60 | Cooldown period [s] |
| Power | PEleMax | 5500 | Maximum power output [W] |
| Power | PEleMin | 0 | Minimum power output [W] |
| MassFlowRate | mWatMin_flow | 0 | Minimum cooling water mass flow rate [kg/s] |
| Temperature | TWatMax | 273.15 + 80 | Maximum cooling water temperature [K] |
| Boolean | use_powerRateLimit | false | If true, the rate at which net power output can change is limited |
| Boolean | use_fuelRateLimit | false | If true, the rate at which fuel mass flow rate can change is limited |
| Real | dPEleMax | 1000000000 | Maximum rate at which net power output can change [W/s] |
| Real | dmFueMax_flow | 1000000000 | Maximum rate at which fuel mass flow rate can change [kg/s2] |
| Power | PStaBy | 100 | Standby electric power [W] |
| Power | PCooDow | 200 | Cooldown electric power [W] |
| Real | LHVFue | 47.614e6 | Lower heating value of fuel [J/kg] |
| Real | kF | 1 | Warm-up fuel coefficient [1] |
| Real | kP | 1 | Warm-up power coefficient [1] |
| Real | rFue | 10 | Warm-up maximum fuel flow ratio [1] |
Modelica definition
record ValidationData3 "Validation data set 3"
extends Buildings.Fluid.CHPs.Data.Generic(
coeEtaQ={0.66,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
coeEtaE={0.27,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
compute_coolingWaterFlowRate=true,
coeMasWat={0.4,0,0,0,0,0},
coeMasAir={0,2,-10000},
UAHex=741,
UALos=13.7,
capEng=63605.6,
capHeaRec=1000.7,
warmUpByTimeDelay=true,
timeDelayStart=60,
coolDownOptional=true,
timeDelayCool=60,
PEleMax=5500,
PEleMin=0,
mWatMin_flow=0,
TWatMax=273.15 + 80,
use_powerRateLimit=false,
use_fuelRateLimit=false,
dPEleMax=1000000000,
dmFueMax_flow=1000000000,
PStaBy=100,
PCooDow=200,
LHVFue=47.614e6);
end ValidationData3;