【英文标准名称】:StandardPracticeforEstimateoftheHeatGainorLossandtheSurfaceTemperaturesofInsulatedFlat,Cylindrical,andSphericalSystemsbyUseofComputerPrograms
【原文标准名称】:用计算机程序估测绝热的平面系统、圆柱形和球形系统的表面温度及吸热或热损失的标准实施规范
【标准号】:ASTMC680-2004e4
【标准状态】:现行
【国别】:
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:C16.30
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:建筑;管;监督(认可);隔热;绝缘的;试验;热损失
【英文主题词】:computerprogram;heatflow;heatgain;heatloss;pipe;thermalinsulation
【摘要】:1.1Thispracticeprovidesthealgorithmsandcalculationmethodologiesforpredictingtheheatlossorgainandsurfacetemperaturesofcertainthermalinsulationsystemsthatcanattainonedimensional,steady-orquasi-steady-stateheattransferconditionsinfieldoperations.1.2Thispracticeisbasedontheassumptionthatthethermalinsulationsystemscanbewelldefinedinrectangular,cylindricalorsphericalcoordinatesystemsandthattheinsulationsystemsarecomposedofhomogeneous,uniformlydimensionedmaterialsthatreduceheatflowbetweentwodifferenttemperatureconditions.1.3Qualifiedpersonnelfamiliarwithinsulation-systemsdesignandanalysisshouldresolvetheapplicabilityofthemethodologiestorealsystems.Therangeandqualityofthephysicalandthermalpropertydataofthematerialscomprisingthethermalinsulationsystemlimitthecalculationaccuracy.Personsusingthispracticemusthaveaknowledgeofthepracticalapplicationofheattransfertheoryrelatingtothermalinsulationmaterialsandsystems.1.4ThecomputerprogramthatcanbegeneratedfromthealgorithmsandcomputationalmethodologiesdefinedinthispracticeisdescribedinSectionofthispractice.Thecomputerprogramisintendedforflatslab,pipeandhollowsphereinsulationsystems.AnexecutableversionofaprogrambasedonthisstandardmaybeobtainedfromASTM.1.5Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P94
【国际标准分类号】:
【页数】:22P.;A4
【正文语种】: