recordChiller
Extends from Modelica.Icons.Record (Icon for records).
Information
This record provides the set of sizing and operating parameters for
the classes within
Buildings.Templates.Components.Chillers.
It is composed of a set of parameters corresponding to the design
(selection) conditions and a sub-record per providing
the chiller performance data.
The design capacity is used to parameterize the chiller model.
The capacity (and power) computed from the external performance data file
is automatically scaled by the chiller model to match the value provided
at design conditions.
Note that the design value for condenser cooling fluid (e.g., condenser water) mass flow rate is only required for water-cooled chillers. Air-cooled chillers use a default outdoor air flow assignment since the chiller model doesn't explicitly calculate fan power based on outdoor air flow and condenser pressure drop. Instead, fan power is integrated into the chiller power computed from the performance data. This is because both US (AHRI Standard 550/590) and European (EN14511) chiller performance rating standards incorporate fan power into the rated total input power.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Fluid.Chillers.ModularReversible.Data.TableData2DLoadDep.Generic | per | ||
| Modelica.Units.SI.Power | P_min | 0 | Minimum power when system is enabled with compressor cycled off |
| Configuration | |||
| Buildings.Templates.Components.Types.Chiller | typ | Type of chiller | |
| Nominal condition | |||
| Modelica.Units.SI.MassFlowRate | mChiWat_flow_nominal | CHW mass flow rate | |
| Modelica.Units.SI.MassFlowRate | mCon_flow_nominal | Condenser cooling fluid (e.g. CW) mass flow rate | |
| Modelica.Units.SI.HeatFlowRate | cap_nominal | Cooling capacity | |
| Modelica.Units.SI.PressureDifference | dpChiWat_nominal | CHW pressure drop | |
| Modelica.Units.SI.PressureDifference | dpCon_nominal | Condenser cooling fluid pressure drop | |
| Modelica.Units.SI.Temperature | TChiWatSup_nominal | CHW supply temperature | |
| Modelica.Units.SI.Temperature | TCon_nominal | Condenser entering or leaving fluid temperature (depending on per.use_TConOutForTab) | |