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【英文标准名称】:StandardTestMethodforUsingHeatFlowMeterApparatustoMeasuretheCenter-of-PanelThermalResistivityofVacuumPanels
【原文标准名称】:用热流仪表器具测量真空板条中心点耐热性的标准试验方法
【标准号】:ASTMC1667-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C16.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:effectivethermalresistance(effectiveR-value);thermalconductivity;thermalresistance;vacuuminsulationpanel;Heatflow;Heatflowmetermethod;Thermalresistance/resistivity;Vacuumpanels
【摘要】:Heatflowmeterapparatusarebeingusedtomeasurethecenter-of-panelportionofavacuuminsulationpanel,whichtypicallyhasaveryhighvalueofthermalresistivity(thatis,equaltoorgreaterthan90m-K/W).AsdescribedinSpecificationC1484,thecenter-of-panelthermalresistivityisused,alongwiththepanelgeometryandbarriermaterialthermalconductivity,todeterminetheeffectivethermalresistanceoftheevacuatedpanel.Usingaheatflowmeterapparatustomeasurethethermalresistivityofnon-homogenousandhighthermalresistancespecimensisanon-standardapplicationoftheequipment,andshallonlybeperformedbyqualifiedpersonnelwithunderstandingofheattransferanderrorpropagation.Familiaritywiththeconfigurationofboththeapparatusandthevacuumpanelisnecessary.Thecenter-of-panelthermaltransmissionpropertiesofevacuatedpanelsvaryduetothecompositionofthematerialsofconstruction,meantemperatureandtemperaturedifference,andthepriorhistory.Theselectionofrepresentativevaluesforthethermaltransmissionpropertiesofanevacuatedpanelforaparticularapplicationmustbebasedonaconsiderationofthesefactorsandwillnotapplynecessarilywithoutmodificationtoallserviceconditions.1.1Thistestmethodcoversthemeasurementofsteady-statethermaltransmissionthroughthecenterofaflatrectangularvacuuminsulationpanelusingaheatflowmeterapparatus.1.2Totalheattransferthroughthenon-homogenousgeometryofavacuuminsulationpanelrequiresthedeterminationofseveralfactors,asdiscussedinSpecificationC1484.Oneofthosefactorsisthecenter-of-panelthermalresistivity.Thecenter-of-panelthermalresistivityisanapproximationofthethermalresistivityofthecoreevacuatedregion.1.3ThistestmethodisbaseduponthetechnologyofTestMethodC518butincludesmodificationsforvacuumpanelapplicationsasoutlinedinthistestmethod.1.4ThistestmethodshallbeusedinconjunctionwithPracticeC1045andPracticeC1058.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q70
【国际标准分类号】:91_060_10
【页数】:8P.;A4
【正文语种】:英语