ImageVerifierCode 换一换
格式:PDF , 页数:64 ,大小:610.67KB ,
资源ID:583621      下载积分:10000 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
注意:如需开发票,请勿充值!
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【http://www.mydoc123.com/d-583621.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: 微信登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(BS ISO 11614-1999 Reciprocating internal combustion compression-ignition engines - Apparatus for measurement of the opacity and for determination of the light absorption coefficien.pdf)为本站会员(Iclinic170)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

BS ISO 11614-1999 Reciprocating internal combustion compression-ignition engines - Apparatus for measurement of the opacity and for determination of the light absorption coefficien.pdf

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 11614:1999 ICS 43.

2、060.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Reciprocating internal combustion compression-ignition engines Apparatus for measurement of the opacity and for determination of the light absorption coefficient of exhaust gasThis British Standard, having been prepared un

3、der the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 December 1999 BSI 12-1999 ISBN 0 580 35698 1 BS ISO 11614:1999 Amendments issued since publication Amd. No. Date Comments National foreword This British Sta

4、ndard reproduces verbatim ISO 11614:1999 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee MCE/22, Engines for road vehicles, which has the responsibility to: aid enquirers to understand the text; present to the responsible in

5、ternational/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to

6、its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards El

7、ectronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This

8、 document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 57 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.A Referencenumbe r ISO11614:1999 (E) INTERNATIONAL STANDARD ISO 11614 Firstedi

9、tion 19990901 Reciprocatinginternalcombustion compressionignitionenginesApparatus formeasurementoftheopacityandfor determinationofthelightabsorption coefficientofexhaustgas Moteursalternatifscombustioninterneallumageparcompression Appareillagedemesuredelopacitetducoefficientdabsorptiondela lumiredes

10、gazdchappementISO11614:1999(E) ii Contents Page 1Scop e1 2Normativereference s1 3Termsanddefinition s.2 4Symbolsandunit s.2 5Principlesofopacimeter s.4 5.1Genera l.4 5.2Measurementoflightabsorptioncoefficien t.4 5.3Conditionsofus e.4 6Specificationsofopacimetersformeasurementofopacity ) .4 6.1Basics

11、pecification s.4 6.2Designspecification s.5 7Additionalspecificationsforopacimeterstomeasurelightabsorptioncoefficien t6 7.1Referencecondition s.6 7.2Basicspecification s.7 7.3Designspecification s.7 8Measurementoftransient s.9 8.1Genera l.9 8.2Responseoftheopacimete r10 8.3Physicaldelaytime, t d 12

12、 8.4Temperatureresponsetime, t T 12 8.5Peakhol d.12 9Specificationsconcerningspecificopacimetersandtheirinstallatio n.13 9.1Samplingopacimeter 13 ISO11614:1999(E) iii 9.2Inlinefullflowopacimete r13 9.3Endofline(plumetype)opacimete r14 9.4Opacimeterforfreeaccelerationtest s.14 9.5Installationofopacim

13、etersinatestbenc h15 10Dataandinstrumentationrequirement s.16 10.1Exampleofspecificrequirementsforsamplingopacimeter s.16 10.2Datarequirement s17 10.3Instrumentationrequirement s.18 11Verificationofopacimetertype s19 11.1Introductio n.19 11.2Generalconsideration s19 11.3Datasuppliedbythemanufacture

14、r19 11.4Instrumentationrequirement s.19 11.5Instrumentverificatio n.19 11.6Verificationofbasicanddesignspecification s21 11.7Verificationofresponsecharacteristic s32 12Verificationofinserviceconformityofopacimeter s.36 12.1Genera l36 12.2Itemstobechecke d.36 12.3Detailsofcheck s36 13Testreportofopac

15、imeterverificatio n.37 13.1Dataandinstrumentationrequirement s37 13.2Resultsofinstrumentverificatio n37 13.3Resultsofverificationofbasicanddesignspecifications (see11.6 ).39 13.4Verificationofresponsecharacteristics (see11.7 ).47 AnnexA (normative) Determinationofthe“meanexhaustgastemperature“inthes

16、mokechamber ofanairscavangedopacimete r54 Bibliography57ISO11614:1999(E) iv Foreword ISO (the InternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachm

17、emberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnongovernmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmatter

18、sofelectrotechnicalstandardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtoth ememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememb

19、erbodiescastingavote. InternationalStandardISO 11614waspreparedbyTechnicalCommitteeISO/TC 22, Roadvehicles, Subcommittee SC5, Enginetests,incollaborationwithISO/TC70, InternalCombustionengines,SubcommitteeSC8, Exhaust gasemisssionmeasurement . ThisfirsteditionofISO11614cancelsandreplacesISO3173:1974

20、andISO/TR4011:1976,whichhavebeen technicallyrevised. AnnexAformsanormativepartofthisInternationalStandard.INTERNATIONALSTANDARD ISO11614:1999(E) 1 Reciprocatinginternalcombustioncompressionignition enginesApparatusformeasurementoftheopacityandfor determinationofthelightabsorptioncoefficientofexhaust

21、gas 1Scope ThisInternationalStandardspecifiesthegeneralrequirementsandtheinstallationofapparatus for measurement of theopacityandforthedeterminationofthelightabsorptioncoefficientofexhaustgasfrominternalcombustion engines(notconfinedtoroadvehicles).Theseinstrumentsareknownasopacimeters. 2Normativere

22、ferences Thefollowingnormativedocumentscontainprovisionsthat,throughreferenceinthistext ,constituteprovisionsof thisInternationalStandard.Fordatedreferences,subsequentamendmentsto,orrevisions of,anyofthese publications do not apply. However,partiestoagreementsbasedonthisInternationalStandardareencou

23、ragedto investigatethepossibilityofapplyingthemostrecenteditionso fthenormativedocumentsindicatedbelow.For undatedreferences,thelatesteditionofthenormativedocumentreferredtoapplies.MembersofIECandISO maintainregistersofcurrentlyvalidInternationalStandards. ISO2602:1980, Statisticalinterpretationofte

24、stresultsEstimationofthemeanConfidenceinterval. IEC6006821:1990, EnvironmentaltestingPart2:TestsTestA:Cold . IEC6006822:1974, EnvironmentaltestingPart2:TestsTestB:Dryheat . IEC6006823:1969, EnvironmentaltestingPart2:TestsTestCa:Dampheat,steadystate . IEC60068231:1969, EnvironmentaltestingPart2:Tests

25、TestEc:Dropandtopple,primarilyforequipment typespecimens . IEC6100042:1995, Electromagneticcompatibility(EMC)Part4:Testingandmeasurementtechniques Section2:ElectrostaticdischargeimmunitytestBasicEMCpublication. IEC6100043:1998, Electromagneticcompatibility(EMC)Part4:Testingandmeasurementtechniques S

26、ection3:Radiated,radiofrequency,electromagneticfieldimmunitytest. IEC6100044:1995, Electromagneticcompatibility(EMC)Part4:Testingandmeasurementtechniques Section4:Electricalfasttransient/burstimmunitytestBasicEMCpublication. CIES001:1986, Colorimetricilluminants.ISO11614:1999(E) 2 3Termsanddefinitio

27、ns ForthepurposesofthisInternationalStandard,thefollowingtermsanddefinitionsapply. 3.1 transmittance, t fractionoflighttransmittedfromasourcethroughasmokeobscuredpath,whichreachesth eobserverorthe apparatusreceiver t= I I 0 100 3.2 opacity, N fractionoflighttransmittedfromasourcethroughasmokeobscure

28、dpath,whichispreventedfromreachingthe observerortheinstrumentreceiver N=100 t 3.3 effectiveopticalpathlength, L A length of a light beam between theemitterandthereceiverthatisintersectedbytheexhaustgasstream,corrected asnecessaryfornonuniformityduetodensitygradientsandfringeeffect 3.4 lightabsorptio

29、ncoefficient, k coefficientdefinedbytheBeerLambertlaw: k L = - 1 100 A ln t or k L N = - - 1 1 100 A ln (1) NOTE 1 Toobtainproperco mparisonswhen makingopacity measurements,thete mperatureandpressureprevailingi n the measuringzone mustbeknownsincetheyinfluencetheligh t absorption coefficient k.Refer

30、enceconditionsforthesearegiven in7.1. NOTE2 Theterm“lightabsorptioncoefficient“isincommonuseandis,therefore,usedinthisInternationalStandard. However,“lightextinctioncoefficient“wouldbe moreaccurateter minology.Asused,thetwotermsdescribeexactlythesame parameter. 4Symbolsandunits ForthepurposesofthisI

31、nternationalStandard,thesymbolsandunitsgiveninTable1apply. Table1 Symbol Unit Description Subclauseconcerned d a dm 3 /s Minimumgasflow. 11.7.1 d b dm 3 /s Maximumgasflow. 11.7.1 d c dm 3 /s Averagegasflow. 11.7.1 I cd Lightintensityatthereceiverwhenthemeasuringzoneisfilledwith exhaustgas. 3.1 I 0 c

32、d Lightintensityatthereceiverwhenthemeasuringzoneisfilledwith cleanair. 3.1 ISO11614:1999(E) 3 Table1 (concluded) Symbol Unit Description Subclauseconcerned k m 1 Lightabsorptioncoefficient. a 3.4;7 k t m 1 Lightabsorptioncoefficientattemperature T. 7.3.7 k cor m 1 Observedlightabsorptioncoefficient

33、correctedforpressureand temperature. 7.3.7 k obs m 1 Observedlightabsorptioncoefficient. 7.3.7 L A mm Effectiveopticalpathlength. 3.3;7.3.4 L A1 mm Effectiveopticalpathlengthofanopacimeterundertest. 11.6.5 L A2 mm Effectiveopticalpathlengthofaknownopacimeter. 11.6.5 l m mm Distancespecifyingtheposit

34、ioninanopacimeterwherethe temperatureequalsthemeantemperatureinthemeasuringzone. 11.6.1.1 l m1 , l m2 mm Distancesrelatingtoseparatehalvesofcertaindesignsof opacimeters. 11.6.1.1 l 1 , l 2 mm Lengthoftube. annexA N % Opacity. 3.2;clause6 N 1 % Readingofanopacimeterundertest. 11.6.5 N 2 % Readingofak

35、nownormodifiedopacimeter. 11.6.5 P 1 , P 2 dm 3 /s Extremepositionsofdivisionofflowallowedbythemanufacturer. 11.6.12 p atm kPa Atmosphericpressure. 7.3.6 p obs kPa Observedstaticpressureinthemeasuringzone. 7.3.6 Q dm 3 /s Rateofflowofgasthroughthemeasuringzone. 8.2.1 T K Temperature. T a K Meantempe

36、raturewithminimumsampletemperatureandminimum sampleflow. 11.6.1.1 T b K Meantemperaturewithmaximumsampletemperatureandmaximum sampleflow. 11.6.1.1 T g K Temperatureofthemixture. annexA T m K Meantemperatureofthegasbeingmeasured. 7.3.7 T s K Scavengeairtemperature. annexA T 1 K Meantemperatureinanopa

37、cimeterundertest. 11.6.5 T 2 K Meantemperatureofknownormodifiedopacimeter. 11.6.5 t s Time. t p s Physicalresponsetime. 8.2.1 t e s Electricalresponsetime. 8.2.2 t o s Overallresponsetime. 8.2.3 t d s Physicaldelaytime 8.3 t T s Temperatureresponsetime. 8.4 V dm 3 Volumeofthemeasuringzone. 8.2.1 v m

38、/s Gasvelocity. v a m/s Velocityatminimumgasflow. 11.7.1 v b m/s Velocityatmaximumgasflow. 11.7.1 v c m/s Velocityoftheaveragegasflow. 11.7.1 t % Transmittance. 3.1 aInprinciple, kwith5/5,means k cor ,unlessotherwisespecified.ISO11614:1999(E) 4 5Principlesofopacimeters 5.1General Theprincipleofmeasu

39、rementisthatlightistransmittedthroughaspecificlengtho f the smoke to be measured and thatproportionofincidentlightwhichreachesareceiver(forexample :a photoelectric device) is used to assess the lightobscurationpropertiesofthemedium. The“lengthofsmoke“overwhichtheopacityismeasureddependso nthedesignf

40、ortheapparatus.Itmaybethe wholeexhaustinanexhaustpipe(inlinefullflowopacimeter,seeFigure1)orinfreeair(endoflin e or plume type fullflowopacimeter,seeFigure2)oritmaybeasampleoftheexhaustextractedfro mtheexhaustpipe(sampling orpartialflowopacimeter). Itisimportanttonotethatopacityreadingsshallalwaysbe

41、specifiedforagive nopticalpathlength.Thevaluehas nomeaningwithouttheopticalpathlengthforthemeasurement. Alsothetemperatureofthegascansignificantlyaffectthereading,andthisshouldbenotedwhenitisnot controlledormeasuredbytheapparatus. 5.2Measurementoflightabsorptioncoefficient Notallapparatuswhichmeasur

42、eopacityaresuitableforth emeasurementofthelightabsorptioncoefficient,since theeffectiveopticalpathlengthisnotalwaysreadilydetermined,and,withendofline(orplumetype)apparatus, theexhaustgasbeingmeasuredisnotinanonreflectiveenclosure.Thegeneralspecificationtobeme tbyall opacimetersisgiveninclause6.Thea

43、dditionalspecificationsforopacimeterstomeasurelightabsorption coefficientaregiveninclause7. 5.3Conditionsofuse Opacimetersmaybeusedinthefollowingtestconditions: steadystateconditions(SS):theengineisrunatconstantspeedandload,understabilizedconditions; transientconditions(TC):theengineisrunundertransi

44、entconditionsofspeedand/orload. Additionalspecificationsforopacimetersformeasurementsundertransientconditionsaregiveninclause8. 6Specificationsofopacimetersformeasurementofopacity 1) 6.1Basicspecifications 6.1.1 Thegastobemeasuredmaybecontainedwithintheexhaus tpipe(inlin eapparatus)orasafreeplumeat theexitfromtheexhaustpipe(endoflineapparatus)or withinaspeciallydesignedchamber(takingfullorpartial flowoftheexhaustgas

copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
备案/许可证编号:苏ICP备17064731号-1