DIN 33831-3-1989 热力泵.可与内燃发动机驱动的压缩机连接的热力泵.第3部分:额定值和性能试验条件

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【英文标准名称】:Specificationsforparticulartypesofwindingwires-Part0-4:Generalrequirements-Glass-fibrewoundresinorvarnishimpregnated,bareorenamelledrectangularcopperwire;Amendment1
【原文标准名称】:特种绕组线规范第0-4部分:一般要求玻璃丝绕包浸树脂或浸清漆裸扁铜线或漆包扁筒线修改1
【标准号】:IEC60317-0-4AMD1-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC55
【标准类型】:()
【标准水平】:()
【中文主题词】:护壳;定义;定义;玻璃布;绕组线;电线;电气工程;铜;扁线;包装件;特性;漆包线;规范(验收);金属线;光亮的;尺寸;交货条件;绕组;裸的;绝缘线;铜线;瓷漆的
【英文主题词】:Bare;Bright;Copper;Copperwires;Definitions;Deliveryconditions;Determinations;Dimensions;Electriccoils;Electricwires;Electricalengineering;Enamelled;Enamelledwires;Flatwires;Glassfabrics;Glassfibrereinforcements;Impregnated;Insulatedwires;Packages;Properties;Resins;Roundwires;Sheathings;Specification(approval);Windingwires;Windings;Wires
【摘要】:ThisstandardisSpecificationsforparticulartypesofwindingwires-Part0-4:Generalrequirements-Glass-fibrewoundresinorvarnishimpregnated,bareorenamelledrectangularcopperwire;Amendment1.
【中国标准分类号】:K12
【国际标准分类号】:29_060_10
【页数】:3P.;A4
【正文语种】:英语


【英文标准名称】:Naturalgas-Calculationofcalorificvalues,density,relativedensityandWobbeindexfromcomposition
【原文标准名称】:天燃气.热值、密度、相对密度和由化合物推导的沃泊指数的计算
【标准号】:BS7859-1996
【标准状态】:作废
【国别】:英国
【发布日期】:1996-03-15
【实施或试行日期】:1996-03-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:准确度;估计;误差修正;再现性;燃料;相对密度;矿物燃料;天然气;密度;文献索引;热值;气体燃料;数学计算
【英文主题词】:Calorificvalue;Calorificvalues;Chemicalcomposition;Definition;Definitions;Density;Mathematicalcalculations;Methodsofcalculation;Naturalgas;Wobbeindex
【摘要】:ThisInternationalStandardspecifiesmethodsforthecalculationofthesuperiorcalorificvalue,inferiorcalorificvalue,density,relativedensityandWobbeindexofdrynaturalgases,naturalgassubstitutesandothercombustiblegaseousfuels,whenthecompo-sitionofthegasbymolefractionisknown.Themethodsprovideameansofcalculatingtheproper-tiesofthegasmixtureatcommonlyusedmetricref-erenceconditions.Themethodsofcalculationrequirevaluesforvariousphysicalpropertiesofthepurecomponents;thesevaluesareprovidedintablesandtheirsourcesareidentified.Methodsaregivenforestimatingtheprecisionofcalculatedproperties.Themethodsofcalculationofthevaluesofpropertiesoneitheramolarormassbasisareapplicabletoanydrynaturalgas,naturalgassubstituteorothercombustiblefuelwhichisnormallygaseous.Forthecalculationofthevaluesofpropertiesonavolumetricbasis,themethodsarerestrictedtogasesconsistingpreponderantlyofmethane(notlessthan0,5molefraction).ExamplesofcalculationsaregiveninannexDfortherecommendedmethodsofcalculation.NOTES1ThesymbolsusedinthisInternationalStandard,to-getherwiththeirmeanings,aregiveninannexA.2Thequalifiers"higher","upper","total"and"gross"are,forthepurposesofthisInternationalStandard,syn-onymouswith"superior";likewise,"lower"and"net"aresynonymouswith"inferior".Theterm"heatingvalue"issynonymouswith"calorificvalue";"specificgravity"issynonymouswith"relativedensity";"Wobbenumber"issynonymouswith"Wobbeindex";"compressibilityfactor"issynonymouswith"compressionfactor".3Ifthecompositionofthegasisknownbyvolumefrac-tionsthesemustbeconvertedtomolefractions(seeannexC).Note,however,thatthederivedmolefractionswillhaveuncertaintiesgreaterthanthoseoftheoriginalvolumefractions.4ForthepurposesofthisInternationalStandard,thesumofthemolefractionsusedmustbeunitytothenearest0,0001,andallcomponentswithmolefractionsgreaterthan0,00005mustbeaccountedfor.5Forthecalorificvaluecalculatedonavolumetricbasis,therearelimitationsontheamountsofcomponentsotherthanmethanewhichmaybepresent.Itisimpossibletobedefinitiveonthismatter,butthefollowingguidelinesmaybeuseful:N2shouldnotbepresentinamountsexceeding0,3molefraction;CO2andC2H6shouldeachnotexceed0,15molefrac-tion;noothercomponentshouldexceed0,05molefraction.Giventheselimits,theexpectedtruenessofthecalculationiswithin0,1%.6Theeffectsofwatervapouronthecalorificvalue,eitherdirectlymeasuredorcalculated,arediscussedinannexF.7Forthemethodsofcalculationdescribedtobevalid,thegasmustbeaboveitshydrocarbondew-pointatthepre-scribedreferenceconditions.8Thevaluesofbasicphysicalpropertydataaresubjecttorevisionasmoreaccuratevaluesbecomeavailablefromauthoritativesources.
【中国标准分类号】:E24
【国际标准分类号】:75_060
【页数】:56P;A4
【正文语种】:英语