recordGeneric

Data record for active rear door heat exchanger

Extends from Buildings.Fluid.DataCenters.Racks.RearDoorHeatExchangers.Data.Passive.Generic (Data record for passive rear door heat exchanger).

Information

Data record for an active rear door heat exchanger used in IT rack models.

This record extends Buildings.Fluid.DataCenters.Racks.RearDoorHeatExchangers.Data.Passive.Generic and adds performance data for the fans.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.SpecificHeatCapacitycpCoo_nominal (from Generic)Buildings.Media.Water.cp_constSpecific heat capacity of rear door heat exchanger coolant fluid
Modelica.Units.SI.SpecificHeatCapacitycpAir_nominal (from Generic)Buildings.Utilities.Psychrometrics.Constants.cpAirSpecific heat capacity of air
Nominal condition
Modelica.Units.SI.MassFlowRatemAir_flow_nominal (from Generic)Design air mass flow rate for heat exchanger
Modelica.Units.SI.MassFlowRatemCoo_flow_nominal (from Generic)Design coolant flow rate for heat exchanger parameterization
Modelica.Units.SI.HeatFlowRateQ_flow_nominal (from Generic)Cooling capacity at design condition (negative number)
Modelica.Units.SI.TemperatureTAirIn_nominal (from Generic)Air inlet nominal temperature (air entering rear door heat exchanger)
Modelica.Units.SI.TemperatureTCooIn_nominal (from Generic)Rear door coolant inlet nominal temperature
Modelica.Units.SI.PressureDifferencedpCoo_nominal (from Generic)10000Coolant-side pressure drop at nominal flow rate
Modelica.Units.SI.PressureDifferencedpAir_nominal (from Generic)200Air-side pressure drop at nominal flow rate
Fan power
Modelica.Units.SI.PowerPFan_nominalmAir_flow_nominal*dpAir_nominal/eta_nominal/Buildings.Media.Air.dStpFan power at full speed
Fan
Realeta_nominal0.7Fan and motor combined efficiency at nominal conditions

Revisions

  • September 18, 2026, by Michael Wetter:
    First implementation.