1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 16911-2:2013Stationary source emissions Manual and automaticdetermination of velocity andvolume flow rate in ductsPart 2: Automated measuring systemsBS EN ISO 16911-2:2
2、013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 16911-2:2013.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e E H / 2 / 1 , S t a t i o n a r y s o u r c e e m i s s i o n .A list of organizations represented o
3、n 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. The British Standards Institution 2013. Published by BSI Standards Limited 2013.ISBN 978 0 580 7396
4、2 0 ICS 13.040.40 Compliance with a British Standard cannot confer immunityfrom legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2013.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD N
5、ORME EUROPENNE EUROPISCHE NORM EN ISO 16911-2 March 2013 ICS 13.040.40 English Version Stationary source emissions - Manual and automatic determination of velocity and volume flow rate in ducts - Part 2: Automated measuring systems (ISO 16911-2:2013) missions de sources fixes - Dtermination manuelle
6、 et automatique de la vitesse et du dbit-volume dcoulement dans les conduits - Partie 2: Systmes de mesure automatiques (ISO 16911-2:2013) Emissionen aus stationren Quellen - Manuelle und automatische Bestimmung der Geschwindigkeit und des Volumenstroms in Abgaskanlen - Teil 2: Kontinuierliche Messv
7、erfahren (ISO 16911-2:2013) This European Standard was approved by CEN on 23 February 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date
8、lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation un
9、der the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former
10、 Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EU
11、ROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 16911-2:2013: EBS EN ISO 16911-2:2013 EN ISO 16911-2:2013 (E) 3 For
12、eword This document (EN ISO 16911-2:2013) has been prepared by Technical Committee CEN/TC 264 “Air quality“,the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 146 “Air quality“. This European Standard shall be given the status of a national standard, either by
13、publication of an identicaltext or by endorsement, at the latest by September 2013, and conflicting national standards shall bewithdrawn at the latest by September 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. CEN and/or CE
14、NELEC 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 followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepubl
15、ic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN IS
16、O 16911-2:2013ISO 16911-2:2013(E) ISO 2013 All rights reserved iiiContents PageForeword vIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbols and abbreviations . 44.1 Symbols . 44.2 Abbreviations . 55 Principle 65.1 General . 65.2 Importance of minimizing systematic
17、 errors . 65.3 Relationship to EN 14181 76 Type testing, quality assurance level 1 data 76.1 Introduction 76.2 Performance criteria 86.3 Flow reference material or procedure 86.4 Quality assurance level 1 calculation . 96.5 Velocity check points and quality assurance level 3 . 97 Selection of automa
18、ted measuring system location .107.1 General 107.2 Selection based upon pre-investigation . 107.3 Selection based upon a predictable flow profile .107.4 Qualifying the automated measuring system calibration through a type 2 quality assurance level 2 procedure . 117.5 Ports and working platforms . 11
19、8 Pre-investigation of flow profile 118.1 General 118.2 Pre-investigation by measurement 128.3 Pre-investigation by computational fluid dynamics (CFD)138.4 Automated measuring system selection guide .148.5 Quality assurance level 2 requirements . 149 Calibration and validation of the automated measu
20、ring system (quality assurance level 2 and annual surveillance test) .149.1 Selection of calibration method 149.2 Selection of calibration method, if calculation methods are used .159.3 Calibration procedure 159.4 Functional tests . 159.5 Parallel measurements with a standard reference method 159.6
21、Wall effects 169.7 Automated measuring system flow calibration procedure with transit time tracer .179.8 Data evaluation 179.9 Calibration function of the automated measuring system and its validity 179.10 Calculation of variability 189.11 Test of variability and annual surveillance test of validity
22、 of the calibration function .189.12 Test of R2189.13 Quality assurance level 2 and annual surveillance test report .1810 Commissioning documentation .1911 On-going quality assurance during operation (quality assurance level 3) 1912 Assessment of uncertainty in volume flow rate 19BS EN ISO 16911-2:2
23、013ISO 16911-2:2013(E)iv ISO 2013 All rights reservedAnnex A (informative) Example of calculation of the calibration function (data from tests in Copenhagen and Wilhelmshaven) .20Annex B (informative) Flow profile characteristics .32Annex C (informative) Determination of measuring points and/or path
24、s 37Annex D (normative) Treatment of a polynomial calibration function 41Annex E (normative) Values of kv(N) and t0,95(N 1).42Annex F (informative) Example of a pre-investigation measurement 43Annex G (informative) Computational fluid dynamics issues .50Annex H (informative) The use of time of fligh
25、t measurement instruments based on modulated laser light .54Annex I (informative) Relationship between this International Standard and the essential requirements of EU Directives 55Bibliography .56BS EN ISO 16911-2:2013ISO 16911-2:2013(E)ForewordISO (the International Organization for Standardizatio
26、n) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be rep
27、resented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards ar
28、e drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internationa
29、l Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 16911-2 was prep
30、ared by the European Committee for Standardization (CEN) in collaboration with ISO Technical Committee TC 146, Air quality, Subcommittee SC 1, Stationary source emissions.ISO 16911 consists of the following parts, under the general title Stationary source emissions Manual and automatic determination
31、 of velocity and volume flow rate in ducts: Part 1: Manual reference method Part 2: Automated measuring systems ISO 2013 All rights reserved vBS EN ISO 16911-2:2013ISO 16911-2:2013(E)IntroductionEN ISO 16911-2 describes the quality assurance (QA) procedures related to automated measuring systems (AM
32、Ss) for the determination of the volume flow rate of flue gas with a total uncertainty that accords with the requirements of Commission Decision of 2007-07-18.4The calibration and validation of flow AMSs are performed by parallel measurements with the reference manual method described in EN ISO 1691
33、1-1.The purpose of EN ISO 16911-2 is to secure flow monitoring with a minimized uncertainty for use according to EU Directive 2000/76/EC,1EU Directive 2001/80/EC,2and EU Directive 2010/75/EU.5The purpose of EN ISO 16911-2 is also to secure flow monitoring with an overall uncertainty equal to or less
34、 than stipulated in Commission Decision of 2007-07-184and establishing guidelines for the monitoring and reporting of greenhouse gas emissions pursuant to Directive 2003/87/EC.3vi ISO 2013 All rights reservedBS EN ISO 16911-2:2013Stationary source emissions Manual and automatic determination of velo
35、city and volume flow rate in ducts Part 2: Automated measuring systems1 ScopeEN ISO 16911-2 describes specific requirements for automated measuring system (AMS) flow monitoring. It is partly derived from EN 14181 which is the general document on the quality assurance of AMSs and is applicable in con
36、junction with that document.EN ISO 16911-2 specifies conditions and criteria for the choice, mounting, commissioning and calibration of AMSs used for determining the volume flow rate from a source in ducted gaseous streams. EN ISO 16911-2 is applicable by correlation with the manual reference method
37、s described in EN ISO 16911-1.EN ISO 16911-2 is primarily developed for monitoring emissions from waste incinerators and large combustion plants. From a technical point of view, it can be applied to other processes for which flow rate measurement is required with a defined and minimized uncertainty.
38、2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 14956, Air quality Evalu
39、ation of the suitability of a measurement procedure by comparison with a required measurement uncertaintyEN ISO 16911-1:2013, Stationary source emissions Manual and automatic determination of velocity and volume flow rate in ducts Part 1 Manual reference methodEN 14181:2004, Stationary source emissi
40、ons Quality assurance of automated measuring systemsEN 15267-3:2007, Air quality Certification of automated measuring systems Part 3: Performance criteria and test procedures for automated measuring systems for monitoring emissions from stationary sourcesEN 15259, Air quality Measurement of stationa
41、ry source emissions Requirements for measurement sections and sites and for the measurement objective, plan and report3 Terms and definitionsFor the purposes of this document, the terms and definitions given in EN 14181 and the following apply.3.1automated measuring systemAMSmeasuring system permane
42、ntly installed on site for continuous monitoring of flowNote 1 to entry: An AMS is a monitoring technology which is traceable to a reference method.INTERNATIONAL STANDARD ISO 16911-2:2013(E) ISO 2013 All rights reserved 1BS EN ISO 16911-2:2013ISO 16911-2:2013(E)Note 2 to entry: The AMS is a complete
43、 system for measuring flow rate, and includes the features required for conducting regular functional checks.3.2cross-sensitivityresponse of the AMS to determinants other than flow rate, e.g. caused by the presence of particulate matter, changes in gas composition, duct temperature3.3linearitylack o
44、f fitsystematic deviation, within the range of application, between the accepted value of a flow reference material applied to the measuring system and the corresponding measurement result produced by the AMSNote 1 to entry: The linearity test is described in EN 15267-3:2007, Annex B.3.4limit of det
45、ectionminimum value of the measurand for which the measuring system is not in the basic state, with a stated probabilityNote 1 to entry: Basic state is normally the zero reading or the minimum measured by the instrument.3.5period of unattended operationmaintenance intervalmaximum interval of time fo
46、r which the performance characteristics remain within a predefined range without external servicing, e.g. calibration or adjustment3.6reproducibility under field conditionsmeasure of the agreement between two measurements in field tests at a level of confidence of 95 % expressed as the standard devi
47、ation of the difference of paired measurements:sxxniiinD=()= 12212(1)wherex1iis the ith measurement result of AMS 1;x2iis the ith measurement result of AMS 2;n is the number of parallel measurements.Note 1 to entry: The absolute reproducibility in the field, Rf,abs, is calculated according to:Rf,abs
48、= t0,05(N 1) sD(2)wheret0,05(N 1)is the two-sided Student t-factor at a confidence level of 0,05, with N 1 degrees of freedom.Note 2 to entry: Adapted from EN 15267-3:2007.2 ISO 2013 All rights reservedBS EN ISO 16911-2:2013ISO 16911-2:2013(E)3.7standard reference methodSRMmethod described and stand
49、ardized to define an air quality characteristic, temporarily installed on site for verification purposesNote 1 to entry: For the purposes of EN ISO 16911-2, the manual reference methods are described in EN ISO 16911-1.3.8flow reference materialsurrogate for flow for testing the AMS performanceNote 1 to entry: A surrogate for flow is normally the parameter measured directly by the instrument, e.g. pressure, time delay, temperature, heat dissipation or frequency.3.9lower reference pointoutput of the instrument
