recordValidationData3
Validation data set 3
Extends from Buildings.Fluid.CHPs.Data.Generic (Generic data for CHP models).
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.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | coeEtaQ (from Generic) | 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 (from Generic) | 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 (from Generic) | true | If true, then an empirical correlation is used to calculate cooling water mass flow rate based on internal control |
| Real | coeMasWat (from Generic) | 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 (from Generic) | 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 | |
| Modelica.Units.SI.ThermalConductance | UAHex (from Generic) | Thermal conductance between the engine and cooling water | |
| Modelica.Units.SI.ThermalConductance | UALos (from Generic) | Thermal conductance between the engine and surroundings | |
| Modelica.Units.SI.HeatCapacity | capEng (from Generic) | Thermal capacitance of the engine control volume | |
| Modelica.Units.SI.HeatCapacity | capHeaRec (from Generic) | Thermal capacitance of heat recovery portion | |
| Boolean | warmUpByTimeDelay (from Generic) | true | If true, the plant will be in warm-up mode depending on the delay time, otherwise depending on engine temperature |
| Modelica.Units.SI.Time | timeDelayStart (from Generic) | 60 | Time delay between activation and power generation |
| Modelica.Units.SI.Temperature | TEngNom (from Generic) | 273.15 + 100 | Nominal engine operating temperature |
| Boolean | coolDownOptional (from Generic) | 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 |
| Modelica.Units.SI.Time | timeDelayCool (from Generic) | 0 | Cooldown period |
| Modelica.Units.SI.Power | PEleMax (from Generic) | Maximum power output | |
| Modelica.Units.SI.Power | PEleMin (from Generic) | 0 | Minimum power output |
| Modelica.Units.SI.MassFlowRate | mWatMin_flow (from Generic) | 0 | Minimum cooling water mass flow rate |
| Modelica.Units.SI.Temperature | TWatMax (from Generic) | 373.15 | Maximum cooling water temperature |
| Boolean | use_powerRateLimit (from Generic) | false | If true, the rate at which net power output can change is limited |
| Boolean | use_fuelRateLimit (from Generic) | false | If true, the rate at which fuel mass flow rate can change is limited |
| Real | dPEleMax (from Generic) | Maximum rate at which net power output can change | |
| Real | dmFueMax_flow (from Generic) | Maximum rate at which fuel mass flow rate can change | |
| Modelica.Units.SI.Power | PStaBy (from Generic) | Standby electric power | |
| Modelica.Units.SI.Power | PCooDow (from Generic) | Cooldown electric power | |
| Real | LHVFue (from Generic) | 47.614e6 | Lower heating value of fuel |
| Real | kF (from Generic) | 1 | Warm-up fuel coefficient |
| Real | kP (from Generic) | 1 | Warm-up power coefficient |
| Real | rFue (from Generic) | 10 | Warm-up maximum fuel flow ratio |
Revisions
-
March 08, 2019, by Tea Zakula:
First implementation.