recordGeneric
Generic data record for air cooled rack
Extends from Buildings.Fluid.DataCenterEquipment.Racks.BaseClasses.Data.Generic (Generic data record for IT rack).
Information
Generic data record for air-cooled IT rack.
The fan power consumption at full IT utilization is by default set to 4% of the IT load.
This setting can be changed through the parameter PFan_nominal.
The parameter fanRelPow describes the normalized fan power consumption based
on the normalized fan volume flow rate. By default, this is set to a cubic curve.
The parameter dTSet is the set point for the air temperature raise across the rack,
which by default is set to 10 Kelvin.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.SpecificHeatCapacity | cp_default | 1014.54 | Specific heat capacity |
| Modelica.Units.SI.TemperatureDifference | dTSet | 10 | Set point for temperature raise across rack |
| Nominal condition | |||
| Modelica.Units.SI.HeatFlowRate | PIT_nominal (from Generic) | IT power consumption at u=1, also called Thermal Design Power (TDP) | |
| Modelica.Units.SI.MassFlowRate | m_flow_nominal (from Generic) | Nominal mass flow rate | |
| Fan power | |||
| Modelica.Units.SI.Power | PFan_nominal | 0.04*PIT_nominal | Fan power at full IT load PIT_nominal |
| Fan | |||
| Buildings.Fluid.HeatExchangers.CoolingTowers.BaseClasses.Characteristics.fan | fanRelPow | Fan relative power consumption as a function of control signal, fanRelPow=P(y)/P(y=1) | |
Revisions
-
June 26, 2026, by Michael Wetter:
First implementation.