<?xml version="1.0"?>
<PropertySetDef xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" ifdguid="44c4a900d1cf11e1800000215ad4efdf" templatetype="PSET_PERFORMANCEDRIVEN" xsi:noNamespaceSchemaLocation="http://buildingSMART-tech.org/xml/psd/PSD_IFC4.xsd">
  <IfcVersion version="IFC4" />
  <Name>Pset_CoolingTowerPHistory</Name>
  <Definition>Cooling tower performance history attributes.</Definition>
  <Applicability />
  <ApplicableClasses>
    <ClassName>IfcCoolingTower</ClassName>
  </ApplicableClasses>
  <ApplicableTypeValue>IfcCoolingTower</ApplicableTypeValue>
  <PropertyDefs>
    <PropertyDef ifdguid="4aba8a00d1cf11e1800000215ad4efdf">
      <Name>Capacity</Name>
      <Definition>Cooling tower capacity in terms of heat transfer rate of the cooling tower between air stream and water stream.</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Capacity</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="4db57a80d1cf11e1800000215ad4efdf">
      <Name>HeatTransferCoefficient</Name>
      <Definition>Heat transfer coefficient-area product.</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Heat Transfer Coefficient</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="50b06b00d1cf11e1800000215ad4efdf">
      <Name>SumpHeaterPower</Name>
      <Definition>Electrical heat power of sump heater.</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Sump Heater Power</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="5443f200d1cf11e1800000215ad4efdf">
      <Name>UACurve</Name>
      <Definition>UA value as a  function of fan speed at certain water flow rate, UA = f ( fan speed).</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">UACurve</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
    <PropertyDef ifdguid="57d77900d1cf11e1800000215ad4efdf">
      <Name>Performance</Name>
      <Definition>Water temperature change as a function of wet-bulb temperature, water entering temperature, water flow rate, air flow rate, Tdiff = f ( Twet-bulb, Twater,in, mwater, mair).</Definition>
      <PropertyType>
        <TypePropertyReferenceValue reftype="IfcTimeSeries" />
      </PropertyType>
      <NameAliases>
        <NameAlias lang="en">Performance</NameAlias>
      </NameAliases>
      <DefinitionAliases>
        <DefinitionAlias lang="en" />
      </DefinitionAliases>
    </PropertyDef>
  </PropertyDefs>
  <PsetDefinitionAliases>
    <PsetDefinitionAlias lang="en" />
  </PsetDefinitionAliases>
</PropertySetDef>