modelPartialIntegratedPrimary

Integrated water-side economizer for primary-only chilled water system

Extends from Buildings.Applications.DataCenters.ChillerCooled.Equipment.BaseClasses.PartialChillerWSE.

Information

Partial model that implements integrated waterside economizer in primary-ony chilled water system.

Parameters

TypeNameDefaultDescription
Two-way valve
ReallVal50.0001Valve leakage, l=Kv(y=0)/Kv(y=1)
ReallVal60.0001Valve leakage, l=Kv(y=0)/Kv(y=1)
Dynamics › Time needed to open or close valve
RealyVal5_start0Initial value of output:0-closed, 1-fully opened
RealyVal6_start1 - yVal5_startInitial value of output:0-closed, 1-fully opened

Components

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInputyVal6Actuator position for valve 6 (0: closed, 1: open)
Modelica.Blocks.Interfaces.RealInputyVal5Actuator position for valve 5(0: closed, 1: open)
Buildings.Fluid.Actuators.Valves.TwoWayLinearval5Bypass valve: closed when fully mechanic cooling is activated; open when fully mechanic cooling is activated
Buildings.Fluid.Actuators.Valves.TwoWayLinearval6Bypass valve: closed when free cooling mode is deactivated; open when free cooling is activated
Fluid.FixedResistances.Junctionspl2Splitter
Fluid.FixedResistances.Junctionjun2Junction

Revisions

  • November 1, 2021, by Michael Wetter:
    Rerouted connection to avoid connections on top of each other in extending classes.
  • April 13, 2021, by Kathryn Hinkelman:
    Added junctions.
  • July 1, 2017, by Yangyang Fu:
    First implementation.