1、BRITISH STANDARDBS 848-3:2001%6(1ISO5802:200Fans for general purpose Part 3: Performance testing in situICS 23.120NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW8BS EN ISO 5802:2008 +A1:2015Industrial fans Performance testing in situBS EN ISO 5802:2008+A1:2015ISBN 978 0 580 86
2、570 1Amendments/corrigenda issued since publicationDate Comments31 May 2009 Implementation of CEN endorsement of ISO 5802:2001, still dual numbered as BS 848-3:200131 August 2015 Implementation of ISO amendment 1:2015 with CEN endorsement A1:2015. Figures 10 and 13 correctedThis British Standard was
3、 published under the authority of the Standards Committee and comes into effect on 15 September 2001 The British Standards Institution 2015. Published by BSI Standards Limited 2015National forewordThis British Standard is the UK implementation of EN ISO 5802:2008+A1:2015. It is identical to ISO 5802
4、:2001 incorporating amendment 1:2015. It supersedes BS EN ISO 5802:2008 (dual numbered BS 848-3:2001) which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee RHE/2, Ventilation for buildings, heating and hot water servicesA list of organizations represented on
5、 this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STANDARDNOR
6、ME EUROPENNEEUROPISCHE NORMEN ISO 5802October 2008ICS 23.120English VersionIndustrial fans - Performance testing in situ (ISO 5802:2001)Ventilateurs industriels - Essai de performance in situ (ISO5802:2001)This European Standard was approved by CEN on 2 October 2008.CEN members are bound to comply w
7、ith the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Ce
8、ntre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial
9、 versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia,
10、 Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national
11、Members.Ref. No. EN ISO 5802:2008: EEN ISO 5802:2008+A1June 2015Foreword The text of ISO 5802:2001 has been prepared by Technical Committee ISO/TC117 “Industrial fans” of the International Organization for Standardization (ISO)and has been taken over as EN ISO 5802:2008 byTechnical Committee CEN/TC
12、156 “Ventilation for buildings” the secretariat of which is held by BSI. This European Standard shall be given the status ofa national standard, either by publication of an identical text or by endorsement, at the latest by April 2009, and conflicting national standards shall be withdrawn at the lat
13、est by April 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any orall such patent rights. According to the CEN/CENELEC Internal Regulations, the national stan
14、dards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, CzechRepublic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Port
15、ugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the UnitedKingdom. Endorsement noticeThe text of ISO 5802:2001 has been approved by CEN as a EN ISO 5802:2008 without any modification. iiBS EN ISO 5802:2008 EN ISO 5802:2008 (E)BS EN ISO 5802:2008+A1:2015EN ISO 5802:2001+A1:2015 (E)E
16、N ISO 5802:2008/A1:2015 (E) 3 Foreword This document (EN ISO 5802:2008/A1:2015) has been prepared by Technical Committee ISO/TC 117 “Fans” in collaboration with Technical Committee CEN/TC 156 “Ventilation for buildings” the secretariat of which is held by BSI. This Amendment to the European Standard
17、 EN ISO 5802:2008 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2015, and conflicting national standards shall be withdrawn at the latest by December 2015. Attention is drawn to the possibility that some of t
18、he elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement
19、this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slov
20、akia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 5802:2001/Amd 1:2015 has been approved by CEN as EN ISO 5802:2008/A1:2015 without any modification. Foreword to amendment A1iiiContents PageForewordvIntroductionvi1Scope12Normativereferences
21、13Terms, definitions and symbols.13.1 Terms and definitions.13.2 Symbols144Quantities to be measured185General conditions andprocedures concerning in situ tests 185.1 General recommendations .185.2 Selection of test point when only the system resistance can be varied185.3Fans fitted with adjustment
22、devices195.4System throttling devices allowing the system resistancetobealtered195.5 Selection of the test pointwhenthe system resistance cannot be varied195.6 When correction of the coefficient deduced from the test is not necessary206Instrumentation206.1 Instrumentation for measurement of pressure
23、.206.2 Measurement of air velocity.216.3 Measurement of temperature .236.4 Determination of density.246.5 Measurement of rotational speed 257Determination of fan pressure257.1 Location of pressure measurement plane257.2 Measurement of fanpressure.278Determination of flow rate 368.1 Choice of measuri
24、ng method.368.2 Choice of measuring section368.3 Determination of flowrate using differential pressure devices.388.4 Determination of flowrate by velocityarea methods.389Determination of power.549.1Definition of performance characteristicsrelating to the power of afan549.2Losses during transmission
25、of power from the motor to the impeller569.3Methods for determination of power.569.4 Measuring instruments.599.5 Precautions to be taken during in situ tests.5910 Uncertaintyassociated with thedetermination of fan performance5910.1 General5910.2 Performanceerrors.6010.3 Uncertaintyofmeasurement6010.
26、4 Specified uncertainties .6010.5 Analysis of uncertainty.60AnnexA(normative) Positionofexploration lines for amarginal wall profilecompatiblewithageneralpower law67AnnexB(normative) Determination of the position of the marginal exploration lines in casesnotcovered by annex A.71BS EN ISO 5802:2008 E
27、N ISO 5802:2008 (E)BS EN ISO 5802:2008+A1:2015ISO 5802:2001+A1:2015 (E)ivAnnexC(normative) Minimum straight lengths required upstreamand downstream of the differentialpressuredevices (DPdevice) used for flow measurement.74AnnexD(normative) Loss allowance for straight, smooth ducts and standardized a
28、irways82AnnexE(normative) Rotatingvaneanemometercalibration.84Bibliography86BS EN ISO 5802:2008 EN ISO 5802:2008 (E)BS EN ISO 5802:2008+A1:2015ISO 5802:2001+A1:2015 (E)vForewordISO (the InternationalOrganizationforStandardization) is aworldwidefederationofnational standards bodies (ISOmember bodies)
29、. Theworkofpreparing InternationalStandards is normallycarried outthrough ISOtechnicalcommittees.Eachmember bodyinterested in asubjectfor whichatechnical committee hasbeenestablishedhasthe right to be representedonthatcommittee. International organizations,governmental and non-governmental, inliaiso
30、n withISO,alsotakepartinthe work. ISO collaborates closelywiththe InternationalElectrotechnicalCommission(IEC) onallmattersofelectrotechnicalstandardization.InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3.DraftInternational Standards adopted by thetechnical
31、committees arecirculatedtothe member bodies forvoting.PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote.Attention is drawntothe possibilitythatsomeofthe elements of this InternationalStandardmay be thesubjectofpatentrights.ISOshallnotbeheldresponsibleforid
32、entifyinganyorallsuchpatentrights.InternationalStandardISO5802waspreparedbyTechnicalCommitteeISO/TC117, Industrialfans.AnnexesAtoEform anormativepartofthisInternationalStandard.BS EN ISO 5802:2008 EN ISO 5802:2008 (E)BS EN ISO 5802:2008+A1:2015ISO 5802:2001+A1:2015 (E)viIntroductionTheneed torevisee
33、xistingmethods of site testing has been apparent forsometime. Bearinginmind theextentoftheserevisions,itwas felt appropriate to expand themethod of site testinginto a“stand-alone“document. Thiswouldenable thevelocityarea methods to be fullydetailed for allcommonlyencountered airwaycross-sections.Itw
34、ouldalsoallow theaddition of descriptive annexes covering theselectionofsuitablemeasuring stations andinstrumentcalibration.In accordancewithrecentInternationalagreements,itwill be noted that fanpressure is nowdefinedasthedifferencebetween stagnationpressure at thefan inlet andoutlet. Stagnation pre
35、ssure is theabsolute pressurewhichwouldbemeasuredatapointinaflowinggasif it werebrought torest isentropically.For Machnumberslessthan0,2thegaugestagnationpressureis within0,6%ofthetotalpressure.Lessemphasis is placed on theuse of “fan static pressure“asthisisaconventional quantity only.Itistobeantic
36、ipated that its usewillcease with time.All fluidlossesare essentiallylossesinstagnation pressure andthishasbeenreflectedinthedefinitionsnowspecified.It should be recognizedthatthe performanceofafanmeasured under site conditions will not necessarily be thesameas that determined from tests usingstanda
37、rdized airways. Thereasonsfor such differences arenot onlydueto theinherentlylower accuracy of asitetest, butalsodue to theso-called “system effect factor“or“installationeffect“, wherethe ductingconnections at faninlet and/or outlet modifyits performance. Theneed forgoodconnections cannot be underst
38、ated. This InternationalStandardspecifies the useof“common parts“immediatelyadjoiningthe fans forthe consistent determination of pressure andalsotoensurethatair/gas is presentedtothefanasasymmetrical velocityprofile free from swirland unduedistortion. Only if theseconditions aremet, will theperforma
39、nceundersiteconditionsequate withthosemeasuredinstandardizedairways.It should alsobenotedthatthisInternationalStandardspecifies the positioning of velocity-areameasuring pointsaccording to log-Tchebycheff or log-linear rules.Arithmetic spacing canleadtoconsiderableerrorunlessaveryhighnumber of point
40、 readings aretaken. (Thesewould then have to beplotted graphicallyandthe area under thecurveobtained usingplanimetry. Thetrueaverage velocity wouldbethisareadividedbythe dimensionalordinates).It is outsidethe scope of this International Standardtoassess the additionaluncertaintywherethe lengths ofst
41、raight ducteither side of themeasuringstationare less than thosespecifiedinannex C. Guidanceis, however,given in ISO/TR5168and ISO7194, from whichitwillbeseenthatwhere asignificant radial componentexists,uncertaintiescanconsiderablyexceedthenormallyanticipated4%at95%confidencelevels.BS EN ISO 5802:2
42、008 EN ISO 5802:2008 (E)BS EN ISO 5802:2008+A1:2015ISO 5802:2001+A1:2015 (E)Industrial fans P erformance testing in situ1ScopeThisInternationalStandardspecifiestestsfordeterminingoneormoreperformancecharacteristicsof fans installedinanoperationalcircuitwhenhandlingamonophasefluid.2Normativereference
43、sThefollowing normative documents containprovisionswhich,through referenceinthistext, constitute provisions ofthis InternationalStandard. Fordated references,subsequent amendments to,orrevisions of,any of thesepublications do notapply.However,parties to agreements based on this International Standar
44、dare encouraged toinvestigate thepossibilityofapplyingthe most recent editions of the normative documents indicated below. Forundated references,the latest edition of the normative document referredtoapplies.MembersofISO and IECmaintainregistersofcurrentlyvalidInternationalStandards.ISO5167-1:1991,
45、Measurementoffluid flow by means of pressure differentialdevices P art1:Orificeplates,nozzlesandVenturitubes insertedincircularcross-sectionconduitsrunningfull.ISO5801:1997,IndustrialfansP erformancetestingusingstandardizedairways.IEC60034-1,RotatingelectricalmachineP art1:Ratingandperformance.IEC60
46、051-8, Direct acting indicatinganalogueelectrical measuringinstruments andtheir accessories P art8:Specialrequirementsforaccessories.3Terms, definitions and symbols3.1Terms and definitionsForthepurposes ofthisInternationalStandard,thefollowingtermsanddefinitionsapply.Thequantities referredtoare time
47、-averagedmean values.Fluctuations whichaffect the quantities being measuredmaybeaccounted forbyrepeating measurements at appropriate time intervals.Meanvalues maythenbecalculatedwhicharetakenasthesteady-statevalue.3.1.1airairorothergas,except whenspecificallyreferredtoasatmosphericair3.1.2standard a
48、iratmosphericairhavingadensityofexactly1,2kgm3NOTE Atmospheric air at atemperatureof16C, apressure of 100000Paandarelativehumidity of 65 %, hasadensityof1,2kgm3,buttheseconditionsarenotpartofthedefinition.1BS EN ISO 5802:2008 EN ISO 5802:2008 (E)BS EN ISO 5802:2008+A1:2015ISO 5802:2001+A1:2015 (E)3.
49、1.3fanrotarymachinewhichmaintainsacontinuousflowofairatapressurerationotnormallyexceeding1,33.1.4impellerrotatingpartofafanwhich,bymeansofitsblades,transfersenergytotheair3.1.5casingthosestationarypartsofafanwhichdirecttheflowofairfrom thefaninletopening(s)tothefanoutletopening(s)3.1.6ductairwayinwhichtheair velocityiscomparablewiththatatthefaninletoroutlet3.1.7chamberairwayinwhichtheair velocityissmallcomparedwiththatatthefaninletoroutlet3.1.8transitionpiecesectionairwayalongwhichthereisagradualchangeofcross-sectionalareaand/orshape3.1.9test enclosureroom,o
