Buildings.Fluid.HeatExchangers.CoolingTowers.Data.DryCooler
Performance data records for dry coolers
Information
This package contains performance data records for dry coolers. The data records can be used with the model Buildings.Fluid.HeatExchangers.CoolingTowers.DryCooler.
Extends from Modelica.Icons.MaterialPropertiesPackage (Icon for package containing property classes).
Package Content
| Name | Description |
|---|---|
 BAC_Trillium_TDFS1238N_C60ET40B
|
BAC Trillium TDFS1238N-C60ET40B |
| Generic
|
Performance data record for a dry cooler |
 BaseClasses
|
Package with base classes for dry cooling tower data records |
Buildings.Fluid.HeatExchangers.CoolingTowers.Data.DryCooler.BAC_Trillium_TDFS1238N_C60ET40B
BAC Trillium TDFS1238N-C60ET40B
Information
Performance data record for BAC TrilliumSeries Dry Cooler, model TDFS1238N-C60ET40B.
Extends from Generic (Performance data record for a dry cooler).
Contents
| Type | Name | Default | Description |
|---|---|---|---|
| Real | PFan_Q_flow_nominal | -117680/2931000 | Ratio of fan power to provided cooling at full load (negative as Q_flow_nominal<0) [1] |
| UACorrection | UACor | Correction factor for UA value due to change in mass flow rate and temperature | |
| Nominal thermal performance | |||
| HeatFlowRate | Q_flow_nominal | -2931000 | Nominal heat flow rate (negative, as heat is removed from the fluid) [W] |
| Temperature | TCooIn_nominal | 319.26 | Nominal cooling loop inlet temperature [K] |
| Temperature | TCooOut_nominal | 313.7 | Nominal cooling loop outlet temperature [K] |
| Temperature | TAirIn_nominal | 308.15 | Nominal outdoor (air inlet) drybulb temperature [K] |
| Nominal condition | |||
| PressureDifference | dp_nominal | Pressure difference at design mass flow rate [Pa] | |
| Advanced | |||
| Real | ratCooAir_nominal | Buildings.Utilities.Psychrom... | Coolant-to-air mass flow rate ratio at design condition, used to compute air flow rate for UA_value [1] |
| fan | fanRelPow | Fan relative power consumption as a function of control signal, fanRelPow=P(y)/P(y=1) | |
| Real | fraFreCon | 0.125 | Fraction of tower capacity in free convection regime [1] |
Modelica definition
record BAC_Trillium_TDFS1238N_C60ET40B
"BAC Trillium TDFS1238N-C60ET40B"
extends Generic(
PFan_Q_flow_nominal=-117680/2931000,
Q_flow_nominal=-2931000,
TAirIn_nominal=308.15,
TCooIn_nominal=319.26,
TCooOut_nominal=313.7);
end BAC_Trillium_TDFS1238N_C60ET40B;
Buildings.Fluid.HeatExchangers.CoolingTowers.Data.DryCooler.Generic
Performance data record for a dry cooler
Information
Performance data record for a dry cooler.
Extends from Buildings.Fluid.HeatExchangers.CoolingTowers.Data.BaseClasses.BaseCoolingTower (Performance data record for dry and wet cooling towers).
Contents
| Type | Name | Default | Description |
|---|---|---|---|
| Real | PFan_Q_flow_nominal | -0.05 | Ratio of fan power to provided cooling at full load (negative as Q_flow_nominal<0) [1] |
| UACorrection | UACor | Correction factor for UA value due to change in mass flow rate and temperature | |
| Nominal thermal performance | |||
| HeatFlowRate | Q_flow_nominal | Nominal heat flow rate (negative, as heat is removed from the fluid) [W] | |
| Temperature | TCooIn_nominal | Nominal cooling loop inlet temperature [K] | |
| Temperature | TCooOut_nominal | Nominal cooling loop outlet temperature [K] | |
| Temperature | TAirIn_nominal | 308.15 | Nominal outdoor (air inlet) drybulb temperature [K] |
| Nominal condition | |||
| PressureDifference | dp_nominal | Pressure difference at design mass flow rate [Pa] | |
| Advanced | |||
| Real | ratCooAir_nominal | Buildings.Utilities.Psychrom... | Coolant-to-air mass flow rate ratio at design condition, used to compute air flow rate for UA_value [1] |
| fan | fanRelPow | Fan relative power consumption as a function of control signal, fanRelPow=P(y)/P(y=1) | |
| Real | fraFreCon | 0.125 | Fraction of tower capacity in free convection regime [1] |
Modelica definition
record Generic "Performance data record for a dry cooler"
extends Buildings.Fluid.HeatExchangers.CoolingTowers.Data.BaseClasses.BaseCoolingTower(
ratCooAir_nominal =
Buildings.Utilities.Psychrometrics.Constants.cpAir /
Buildings.Utilities.Psychrometrics.Constants.cpWatLiq);
parameter Modelica.Units.SI.Temperature TAirIn_nominal=308.15
"Nominal outdoor (air inlet) drybulb temperature";
BaseClasses.UACorrection UACor
"Correction factor for UA value due to change in mass flow rate and temperature";
end Generic;