ASTM G173-2003(2008) 参考太阳光谱辐照度的标准表:37斜面上直接垂直和半球状

作者:标准资料网 时间:2024-05-20 08:58:40  浏览:9873   来源:标准资料网

【英文标准名称】:StandardTablesforReferenceSolarSpectralIrradiances:DirectNormalandHemisphericalon37176;TiltedSurface
【原文标准名称】:参考太阳光谱辐照度的标准表:37斜面上直接垂直和半球状
【标准号】:ASTMG173-2003(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:G03.09
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:directnormal;hemispherical;irradiance;solarconstant;solarspectrum;terrestrial;wavelength;Directnormalspectralirradiance;Hemisphericalspectralirradiance;Solarspectralirradiance;Tables(measurement)--petroleumproducts;Directnorm
【摘要】:Absorptance,reflectance,andtransmittanceofsolarenergyareimportantfactorsinmaterialdegradationstudies,solarthermalsystemperformance,solarphotovoltaicsystemperformance,biologicalstudies,andsolarsimulationactivities.Theseopticalpropertiesarenormallyfunctionsofwavelength,whichrequirethespectraldistributionofthesolarfluxbeknownbeforethesolar-weightedpropertycanbecalculated.Tocomparetherelativeperformanceofcompetitiveproducts,ortocomparetheperformanceofproductsbeforeandafterbeingsubjectedtoweatheringorotherexposureconditions,areferencestandardsolarspectraldistributionisdesirable.Thesetablesprovideappropriatestandardspectralirradiancedistributionsfordeterminingtherelativeopticalperformanceofmaterials,solarthermal,solarphotovoltaic,andothersystems.Thetablesmaybeusedtoevaluatecomponentsandmaterialsforthepurposeofsolarsimulationwhereeitherthedirectorthehemispherical(thatis,directbeamplusdiffusesky)spectralsolarirradianceisdesired.However,thesetablesarenotintendedtobeusedasabenchmarkforultravioletradiationusedinindoorexposuretestingofmaterialsusingmanufacturedlightsources.Thetotalintegratedirradiancesforthedirectandhemisphericaltiltedspectraare900.1Wx00B7;m-2and1000.4Wx00B7;m-2,respectively.Notethat,inPVapplications,noamplitudeadjustmentsarerequiredtomatchstandardreportingconditionirradiancesof1000Wx00B7;m-2forhemisphericalirradiance.Previouslydefinedglobalhemisphericalreferencespectrum(G159)forasun-facing37x00B0;-tiltedsurfaceservedwelltomeettheneedsoftheflatplatephotovoltaicresearch,development,andindustrialcommunity.Investigationofprevailingconditionsandmeasuredspectrashowsthatthisglobalhemisphericalreferencespectrumcanbeattainedinpracticeunderavarietyofconditions,andthattheseconditionscanbeinterpretedasrepresentativeformanycombinationsofatmosphericparameters.Earlierglobalhemisphericalreferencespectrummaybeclosely,butnotexactly,reproducedwithimprovedspectralwavelengthrange,uniformspectralinterval,andspectralresolutionequivalenttothespectralinterval,usinginputsinX1.4.ReferencespectrageneratedbytheSMARTSVersion2.9.2modelfortheindicatedconditionsareshowninFig.1.TheexactinputfilestructurerequiredtogeneratethereferencespectraisshowninTable1.Theavailabilityoftheadjunct(ADJG173CD)standardcomputersoftwareforSMARTSallowsoneto(1)reproducethereferencespectra,usingtheaboveinputparameters;(2)computetestspectratoattempttomatchmeasureddataataspecifiedFWHM,andevaluateatmosphericconditions;and(3)computetestspectrarepresentingspecificconditionsforanalysisvis-?/span>-visanyoneorallofthereferencespectra.Differencesfromthepreviousstandardspectra(G159)canbesummarizedasfollows:Extendedspectralintervalintheultraviolet(downto280nm,ratherthan305nm),Betterresolution(2002wavelengths,ascomparedto120),Constantintervals(0.5nmbelow400nm,1nmbetween400and1700nm,and5nmabove),Betterdefinitionofatmosphericscatteringandgaseousabsorption,withmorespeciesconsidered,Betterdefinedextraterrestrialspectrum,Morerealisticspectralgroundreflectance,andLoweraerosolopticaldepth,yieldingsignificantlylargerdirect......
【中国标准分类号】:A60
【国际标准分类号】:17_180_01
【页数】:21P.;A4
【正文语种】:英语