CEN/TR 17078:2017

SLOVENSKI STANDARD
01-julij-2017
(PLVLMHQHSUHPLþQLKYLURY1DYRGLOR]DXSRUDERVWDQGDUGD(1,62
Stationary source emissions - Guidance on the application of EN ISO 16911-1
Emissionen aus stationären Quellen - Leitlinien zur Anwendung von EN ISO 16911-1
Émissions de sources fixes - Préconisations concernant l’application de l’EN ISO 16911-
Ta slovenski standard je istoveten z: CEN/TR 17078:2017
ICS:
13.040.40 (PLVLMHQHSUHPLþQLKYLURY Stationary source emissions
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TR 17078
TECHNICAL REPORT
RAPPORT TECHNIQUE
March 2017
TECHNISCHER BERICHT
ICS 13.040.40
English Version
Stationary source emissions - Guidance on the application
of EN ISO 16911-1
Émissions de sources fixes - Préconisations concernant Emissionen aus stationären Quellen - Leitlinien zur
l'application de l'EN ISO 16911-1 Anwendung von EN ISO 16911-1

This Technical Report was approved by CEN on 20 February 2017. It has been drawn up by the Technical Committee CEN/TC
264.
CEN members are the national standards bodies of 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 17078:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols and abbreviations . 7
5 General guidance on manual determination of velocity and flow rate in ducts. 7
5.1 General . 7
5.1.1 Role of this CEN Technical Report . 7
5.1.2 How to use this Technical Report . 8
5.2 Scope and structure of EN ISO 16911-1 . 8
5.2.1 Scope of EN ISO 16911-1 . 8
5.2.2 Concept of EN ISO 16911-1 . 8
5.2.3 Relationship to other international standards . 8
5.3 Summary of different requirements for determination of velocity and flow rate . 8
5.3.1 Velocity and flow rate monitoring requirements under the Industrial Emissions
Directive . 8
5.3.2 Velocity and flow rate monitoring requirements under the EU ETS Directive . 8
5.3.3 Other requirements for monitoring velocity and flow rate in ducts and stacks . 9
6 Specific guidance on the application of EN ISO 16911-1 . 9
6.1 Scope . 9
6.2 Normative references . 9
6.3 Terms, definitions . 9
6.4 Symbols and abbreviated terms . 9
6.4.1 Symbols . 9
6.4.2 Abbreviated terms . 10
6.5 Principle . 10
6.5.1 General . 10
6.5.2 Principle of flow velocity determination at a point the duct . 10
6.6 Principle of measurement of flow rate . 10
6.6.1 General . 10
6.6.2 Principle of volume flow rate determination from point velocity measurements . 11
6.6.3 Determination of volume flow rate using tracer dilution measurements . 11
6.6.4 Determination of volume flow rate using transit time tracer measurements . 11
6.6.5 Determination of volume flow rate from plant thermal input . 11
6.7 Selection of a monitoring approach . 11
6.7.1 Measurement objective . 11
6.7.2 Choice of technique to determine point flow velocity . 11
6.7.3 Choice of technique for volume flow rate and average flow determination . 11
6.8 Measuring equipment . 11
6.8.1 General . 11
6.8.2 Measurement of duct area . 12
6.9 Performance characteristics and requirements . 13
6.10 Measurement Procedure — Site survey before testing . 15
6.11 Determination of sampling plane and number of measurement points. 15
6.12 Checks before sampling . 16
6.12.1 General . 16
6.12.2 Pre-test leak check . 17
6.12.3 Check on stagnation and reference pressure taps (S-type Pitot tube) . 18
6.12.4 Test of repeatability at a single point . 18
6.12.5 Swirl or cyclonic flow . 18
6.13 Quality control . 19
6.14 Measurement of flow at locations within the measurement plane . 19
6.15 Post-measurement quality control . 19
6.16 Calculation of results . 20
6.16.1 General . 20
6.16.2 Measurement of velocity . 20
6.16.3 Determination of the mean velocity . 20
6.16.4 Correction of average velocity for wall effects . 20
6.16.5 Calculation of the volume flow rate from the average velocity . 20
6.16.6 Conversion of results to standard conditions . 20
6.17 Establishment of uncertainty results . 20
6.18 Evaluation of the method . 20
7 Annex A: Measurement of velocity using differential pressure based techniques . 20
7.1 A.1: Principle of differential pressure based technique . 20
7.2 A.2: Measuring Equipment . 20
7.2.1 A.2.1: Pitot tubes . 20
7.2.2 A.2.2: Differential pressure flow measurement equipment . 21
8 Annex F: Example of uncertainty budget established for velocity and volume flow
rate measurements by Pitot tube . 22
8.1 F.1: Process of uncertainty estimation . 22
8.1.1 F.1.1: General . 22
8.1.2 F.1.2: Determination of model function. 22
8.1.3 F.1.3: Quantification of uncertainty components. 22
8.1.4 F.1.4: Calculation of the combined uncertainty . 22
8.1.5 F.1.5: Other sources of errors . 23
8.2 F.2: Example uncertainty calculation . 24
8.2.1 F.2.1: Calculation of the physicochemical characteristics of the gas effluent . 26
8.2.2 F.2.2: Calculation of uncertainty associated with the determination of local velocities . 27
8.2.3 F.2.3: Calculation of uncertainty associated with the mean velocity . 35
8.2.4 F.2.4: Calculation of uncertainty in reported values . 36
9 Annexes B, C, D, E, G, H, I and J . 37
Annex A (informative) Degree of swirl determination example method . 38
Annex B (informative) S-type Pitot leak check example method . 39
Bibliography . 40

European foreword
This document (CEN/TR 17078:2017) has been prepared by Technical Committee CEN/TC 264 “Air
quality”, the secretariat of which is held by DIN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for
...