【英文标准名称】:StandardTestMethodforEstimationofNetHeatofCombustion(SpecificEnergy)ofAviationFuels
【原文标准名称】:估计航空燃油燃烧热值的试验方法
【标准号】:ASTMD6446-2001(2006)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D02.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:航空燃料;石油工业;测试方法;试验方法
【英文主题词】:aviationfuels;energycontent;heatofcombustion;heatingtests;netheatofcombustion;specificenergy
【摘要】:Thistestmethodisintendedforuseasaguideincasesinwhichanexperimentaldeterminationofheatofcombustionisnotavailableandcannotbemadeconveniently,andinwhichanestimateisconsideredsatisfactory.Itisnotintendedasasubstituteforexperimentalmeasurementsofheatofcombustion(seeNote2).Note28212;TheproceduresfortheexperimentaldeterminationofthenetheatofcombustionaredescribedinTestMethodsD240andD4809.Thenetheatofcombustionisafactorintheperformanceofallaviationfuels.Becausetheexhaustofaircraftenginescontainsuncondensedwatervapors,theenergyreleasedbyfuelinvaporizingwatercannotberecoveredandmustbesubtractedfromgrossheatofcombustion.Forhighperformanceweight-limitedaircraft,thenetheatofcombustionperunitmassandthemassoffuelloadeddeterminethetotalsaferange.Theproperoperationoftheaircraftenginealsorequiresacertainminimumnetenergyofcombustionperunitvolumeoffueldelivered.1.1Thistestmethodcoverstheestimationofthenetheatofcombustion(specificenergy)atconstantpressureinSIunits,megajoulesperkilogram,fromthefueldensity,sulfur,andhydrogencontent.1.2Thistestmethodispurelyempirical,anditisapplicableonlytoliquidhydrocarbonfuelsderivedbynormalrefiningprocessesfromconventionalcrudeoilthatconformtotherequirementsofspecificationsforaviationturbinefuelsoflimitedboilingrangesandcompositions,asdescribedinNote0andpermittedbyeachspecification.Note0Theestimationoftheheatofcombustionofahydrocarbonfuelfromitshydrogencontent,density,andsulfurisjustifiableonlywhenthefuelbelongstoawell-definedclassforwhicharelationshipbetweenthesequantitieshasbeenderivedfromaccurateexperimentalmeasurementsonrepresentativesamplesofthatclass.Eveninthisclass,thepossibilitythattheestimatescanbeinerrorbylargeamountsforindividualfuelsshouldberecognized.Theclassesoffuelsusedtoestablishthecorreclationpresentedinthistestmethodarerepresentedbythefollowingspecifications:1.3TheheatofcombustioncanalsobeestimatedbyTestMethodsD1405,D3338,andD4529.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:3P.;A4
【正文语种】: