blockStagingCapacity
Total capacity at current stages times stage-up PLR limit
Information
It calcualtes the total capacity at current stages times stage-up PLR limit.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | PLRStaTra | 0.85 | Part load ratio triggering stage transition |
| CHW loop and cooling-only chillers | |||
| Integer | nChi | Number of units operating at design conditions | |
| Real | QChiWatChi_flow_nominal | Cooling design heat flow rate of cooling-only chillers (all units) | |
| HW loop and heat recovery chillers | |||
| Integer | nChiHea | Number of units operating at design conditions | |
| Real | QChiWatCasCoo_flow_nominal | Cooling design heat flow rate of HRC in cascading cooling mode (all units) | |
| Real | QHeaWat_flow_nominal | Heating design heat flow rate (all units) | |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Controls.OBC.CDL.Interfaces.IntegerInput | uCooPreIdxSta | Left limit of the cooling stage index | |
| Buildings.Controls.OBC.CDL.Interfaces.IntegerInput | uHeaPreIdxSta | Left limit of the heating stage index | |
| Buildings.Controls.OBC.CDL.Interfaces.RealOutput | yCoo | Total capacity at current stage (>0) times stage-up PLR limit | |
| Buildings.Controls.OBC.CDL.Interfaces.RealOutput | yCooLow | Total capacity at next lower stage (>0) times stage-down PLR limit | |
| Buildings.Controls.OBC.CDL.Interfaces.RealOutput | yHea | Total capacity at current stage (>0) times stage-up PLR limit | |
| Buildings.Controls.OBC.CDL.Interfaces.RealOutput | yHeaLow | Total capacity at next lower stage (>0) times stage-down PLR limit |
Components
Revisions
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February 13, 2025, by Jianjun Hu:
First implementation.