基本信息
| 标准名称： | 隧道式干燥室-轮窑体系热效率、单位热耗、单位煤耗计算方法 |
| 英文名称： | The methods for the calculation of the efficiency, unit heat consumption and unit coal consumption of tunnel dryer annular kiln system |
| 中标分类： |
建材 >>
建材机械与设备 >>
制砖与制瓦设备 |
| ICS分类： |
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| 替代情况： | 被JC/T 793-2007替代 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1900-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2008-04-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 4页 |
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所属分类： 建材 建材机械与设备 制砖与制瓦设备
【英文标准名称】:StandardTestMethodforThermalConductivityofSolidsbyMeansoftheGuarded-Comparative-LongitudinalHeatFlowTechnique
【原文标准名称】:通过隔绝-比较-轴向热流技术测定固体导热性的标准试验方法
【标准号】:ASTME1225-2009
【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】:E37.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Copperalloy;Glass;Graphite;Guardedheatflowtechnique;Heatflow;Heatingtests--chemicals/materials;Insulation;Iron;Longitudinalprofile;Metalsandmetallicmaterials;Meterbarmaterials;Polymers;Refractories(general);Sensors;Silicaconten
【摘要】:Thecomparativemethodofmeasurementofthermalconductivityisespeciallyusefulforengineeringmaterialsincludingceramics,polymers,metalsandalloys,refractories,carbons,andgraphitesincludingcombinationsandothercompositeformsofeach.Properdesignofaguarded-longitudinalsystemisdifficultanditisnotpracticalinamethodofthistypetotrytoestablishdetailsofconstructionandprocedurestocoverallcontingenciesthatmightofferdifficultiestoapersonwithouttechnicalknowledgeconcerningtheoryofheatflow,temperaturemeasurements,andgeneraltestingpractices.Standardizationofthistestmethodisnotintendedtorestrictinanywaythefuturedevelopmentbyresearchworkersofnewormethodsorimprovedprocedures.However,neworimprovedtechniquesmustbethoroughlytested.RequirementsforqualifyinganapparatusareoutlinedinSection10.1.1Thistestmethoddescribesasteadystatetechniqueforthedeterminationofthethermalconductivity,x03BB;,ofhomogeneous-opaquesolids(seeNotes1and2).Thistestmethodisformaterialswitheffectivethermalconductivitiesintheapproximaterange0.2x003C;x03BB;x003C;200W/(mx00B7;K)overtheapproximatetemperaturerangebetween90and1300K.Itcanbeusedoutsidetheserangeswithdecreasedaccuracy.Note18212;Forpurposesofthistechnique,asystemishomogeneousiftheapparentthermalconductivityofthespecimen,x03BB;A,doesnotvarywithchangesofthicknessorcross-sectionalareabymorethanx00B1;5%.Forcompositesorheterogeneoussystemsconsistingofslabsorplatesbondedtogether,thespecimenshouldbemorethan20unitswideand20unitsthick,respectively,whereaunitisthethicknessofthethickestslaborplate,sothatdiameterorlengthchangesofone-halfunitwillaffecttheapparentx03BB;Abylessthanx00B1;5%.Forsystemsthatarenon-opaqueorpartiallytransparentintheinfrared,thecombinederrorduetoinhomogeneityandphotontransmissionshouldbelessthanx00B1;5%.Measurementsonhighlytransparentsolidsmustbeaccompaniedwithinfraredabsorptioncoefficientinformation,ortheresultsmustbereportedasapparentthermalconductivity,x03BB;A.Note28212;Thistestmethodmayalsobeusedtoevaluatethecontactthermalconductance/resistanceofmaterials.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:
【页数】:9P.;A4
【正文语种】:英语