【英文标准名称】:AirCooledHeatExchangers
【原文标准名称】:空气冷却式热交换器
【标准号】:ASMEPTC30-1991
【标准状态】:现行
【国别】:美国
【发布日期】:1991-01-01
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:热力学性质;测量;热力工程;空气冷却;热交换器;试验;试验数据
【英文主题词】:Air-cooled;Heatengineering;Heatexchangers;Measurement;Testdata;Testing;Thermodynamicproperties
【摘要】:TheobjectofthisCodeistoprovideuniformmethodsandproceduresfortestingthethermodynamicandfluidmechanicalperformanceofaircooledheatexchangers,andforcalculatingadjustmentstothetestresultstodesignconditionsforcomparisonwiththeguaranteeasdefinedinpara.5.9.4.ThescopeofthisCodecovers,butisnotlimitedto,thetestingofmechanicaldraftheatexchangers,ofboththeforceddraftandinduceddrafttypes,naturaldraftheatexchangers,andfanassistednaturaldraftheatexchangers.Fromaheattransfersurfacestandpoint,thisCodecoversalltubebundleorientations,including:vertical,horizontal,andslantedconduitheatexchangers.Bothbaresurfacesandfinnedsurfacesareincludedasconduittypeheatexchangercomponents.WhileconventionalroundtubeswithcircularfinsareassumedinthisCode,theprocedurescanbemodifiedbymutualagreementtoapplytoothersurfaceconfigurations.Whilethecoolingfluidisrestrictedtoatmosphericair,thetube-sidefluidcanbeanychemicalelement,compoundormixture,insinglephaseflow,liquidorgas,orintwophaseflow.ThisCodeiswrittenundertheassumptionthattheAirCooledHeatExchanger(ACHE)maybetestedashavingadiscreteprocessstreamorthatonlyoneprocessfluidstreamisbeinginvestigated.Inothercases,modificationsmustbemadetotheprocedurespresented.Suchmodificationsshallbeagreedbythepartiestothetest.ThescopeofthisCodealsoincludes,directlyorbyreference,recommendedmethodsforobtainingdata,measurements,observations,andsamplestodeterminethefollowing:(a)PhysicalDimensions(b)AirFlowRate(c)Air-SidePressureDifferential(d)FanDriverPower(e)SoundLevel(f)AtmosphericPressure(g)EnvironmentalEffects(h)WindVelocity(i)AirTemperatures(j)EnteringAirTemperature(k)ExitAirTemperature(l)ProcessFluidTemperatures(m)ProcessFluidPressures(n)ProcessFluidFlowRate(o)CompositionofProcessFluid(p)Percentcapability(q)ProcessFluidPressureDrop
【中国标准分类号】:J96
【国际标准分类号】:27_060_30
【页数】:93P.;A4
【正文语种】:英语


【英文标准名称】:Microbiology;generalguidancefortheenumerationofBacilluscereus;colony-counttechniqueat30°C
【原文标准名称】:微生物学蜡状芽孢杆菌计数通用指南30℃时菌落计数技术
【标准号】:ISO7932-1993
【标准状态】:作废
【国别】:国际
【发布日期】:1993-10
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC34
【标准类型】:()
【标准水平】:()
【中文主题词】:芽胞杆菌;试验;菌落计数技术;食品;微生物学;细菌纲;定义;细菌计数方法;微生物分析
【英文主题词】:bacilli;microbiologicalanalysis;foodproducts;microbiology;bacteriacountmethods;bacteria;testing;definitions;colonycounttechniques
【摘要】:
【中国标准分类号】:C51
【国际标准分类号】:07_100_30
【页数】:15P;A4
【正文语种】:英语