EN IEC 62097:2019
(Main)Hydraulic machines, radial and axial - Methodology for performance transposition from model to prototype
Hydraulic machines, radial and axial - Methodology for performance transposition from model to prototype
IEC 62097:2019 establishes the prototype hydraulic machine efficiency from model test results, with consideration of scale effect including the effect of surface roughness. This document is intended to be used for the assessment of the results of contractual model tests of hydraulic machines. This second edition cancels and replaces the first edition published in 2009. This edition constitutes an editorial and technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) In introduction, clarifications have been brought such as addition of a sentence which declares the precedence of IEC 62097 over IEC 60193 if any mismatch is found between them b) In Clauses 3 and 4, corrections of the typographical errors c) In Clause 3: changes to be in accordance with presentation of the terms and structure of IEC 60193 (except for the water temperature) d) In Clause 4: – Deletion of the clause providing the direct step-up procedures for a whole turbine – Introduction of a global view by using turbine A and turbine B instead of model turbine, reference model turbine and prototype turbine – Move of section dealing with “surface roughness of model and prototype” in a new Clause 5 e) In Clause 5: – Introduction of additional chapters to answer comments raised at the CDV stage and to clarify the subject of surface roughness of model and prototype – Introduction of new tables for minimum recommended prototype roughness for new radial or diagonal machines and for new axial turbines – Addition of the explanation about roughness measurement of heavily rusted surface f) In Clause 7 (former Clause 6): – Introduction of a new subclause for clarifications about the assumed maximum hydraulic efficiency, hhAmax – Deletion of the requirement of mutual agreement for the application of the step-up formula for very high efficiency machines exceeding hhAmax – Clarifications of the equations from 22 to 33 by doubling the equations for suiting the “two step method g) In Clauses 6 and 7, correction of typographical errors h) In Clause 8 (former Clause 7), introduction of new figures for clarifying the “2 step” method and the alternative method i) In Annex A, modification of the flux diagram to be in compliance with IEC 60193 j) In Annex B: – Correction of the equation to obtain ΔECO – Deletion of the clause which describes the direct step-up procedures for radial flow machines k) In Annex C, deletion of the clause which describes the direct step-up procedures for axial flow machines l) In Annex D: – notes become main text – change of variable names in Subclause D.1 for clarifications m) Addition of Annex E, about comparison of IEC standards dealing with models: 60193 and 62097 n) In Annex F, clarifications of equations by adding more subscripts o) The Excel sheets attached to the standard are revised as itemized below – Deletion of the routine regarding the direct step-up procedures for a whole turbine – Deletion of the notice which requires mutual agreement when the step-up is applied to high efficiency machines exceeding hhAmax – Addition of the routine to process the normalization of test data ob
Hydraulische Maschinen, radial und axial - Leistungsumrechnung vom Modell zum Prototyp
Machines hydrauliques, radiales et axiales - Méthodologie de transposition des performances du modèle au prototype
IEC 62097:2019 s'applique à la vérification du rendement et des performances de machines hydrauliques prototypes à partir des résultats d'essais sur modèle réduit en tenant compte des effets d'échelle y compris de l'effet de rugosité de surface. Le présent document est prévue pour être employée lors de l'évaluation des résultats des essais contractuels sur modèle réduit de machines hydrauliques. Cette deuxième édition annule et remplace la première édition parue en 2009. Cette édition constitue une révision éditoriale et technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) En introduction, des clarifications ont été apportées comme l'ajout d'une phrase qui déclare la primauté de la CEI 62097 sur la CEI 60193 en cas de discordance entre les 2 normes a) Aux Articles 3 et 4, les corrections des erreurs typographiques b) A l'Article 3 : des modifications rendant conformes la présentation des termes et la structure de ce document avec la CEI 60193 (à l'exception de la température de l'eau) c) A l'Article 4 : – La suppression de l’article décrivant la procédure de transposition directe pour la machine hydraulique complète – L’introduction d'une vision globale en utilisant la notion de turbine A et de turbine B au lieu de turbine modèle, de turbine modèle de référence et de turbine prototype – Déplacement de la section traitant de "rugosité de surface du modèle et du prototype" dans un nouvel Article 5 d) A l'Article 5 : – L’introduction de chapitres supplémentaires pour répondre aux commentaires soulevés au stade du CDV et pour clarifier le sujet de la rugosité de surface du modèle et du prototype – L’introduction de nouveaux tableaux pour la rugosité minimale recommandée du prototype pour les nouvelles machines radiales ou diagonales et pour les nouvelles turbines axiales – L’ajout d’une explication sur la mesure de la rugosité des surfaces fortement rouillées e) A l'Article 7 (anciennement Article 6) : – L’introduction d'un nouveau paragraphe pour clarification à propos du rendement hydraulique maximal supposé, hhAmax – La suppression de l’agrément mutuel pour l’application de la formule de transposition pour les machines dont le rendement très élevé excède hhAmax – Des clarifications des équations 22 à 33 en doublant les équations pour correspondre à la "méthode en deux étapes" f) Aux Articles 6 et 7, les corrections des erreurs typographiques g) A l'Article 8 (anciennement Article 7), l’introduction de nouveaux indices pour clarifier la méthode "en deux étapes" et la méthode alternative h) Dans l'Annexe A, la modification du diagramme de flux pour être conforme à l'IEC 60193 i) A l'Annexe B : – La correction de l'équation pour obtenir ΔECO – La suppression de l’article décrivant la procédure de transposition directe pour la machine hydraulique complète pour les machines à flux radial j) A l'Annexe C, la suppression de l’article décrivant la procédure de transposition directe pour la machine hydraulique complète pour les machines à flux axial k) Dans l'Annexe D : – Les notes deviennent du texte principal – Le changement du nom des va
Vodni stroji, radialni in aksialni - Metodologija prenosa uspešnosti z modela na prototip (IEC 62097:2019)
Ta mednarodni standard določa učinkovitost prototipnega vodnega stroja iz rezultatov preskušanja modela ob upoštevanju učinka obsega, vključno z učinkom površinske hrapavosti.
Ta dokument je namenjen za uporabo pri ocenjevanju rezultatov preskušanja pogodbenih modelov vodnih strojev.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2019
Nadomešča:
SIST EN 62097:2010
Vodni stroji, radialni in aksialni - Metodologija prenosa uspešnosti z modela na
prototip (IEC 62097:2019)
Hydraulic machines, radial and axial - Methodology for performance transposition from
model to prototype (IEC 62097:2019)
Hydraulische Maschinen, radial und axial - Leistungsumrechnung vom Modell zum
Prototyp (IEC 62097:2019)
Machines hydrauliques, radiales et axiales - Méthode de conversion des performances
du modèle au prototype (IEC 62097:2019)
Ta slovenski standard je istoveten z: EN IEC 62097:2019
ICS:
27.140 Vodna energija Hydraulic energy engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 62097
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2019
ICS 27.140 Supersedes EN 62097:2009
English Version
Hydraulic machines, radial and axial - Methodology for
performance transposition from model to prototype
(IEC 62097:2019)
Machines hydrauliques, radiales et axiales - Méthodologie Hydraulische Maschinen, radial und axial -
de transposition des performances du modèle au prototype Leistungsumrechnung vom Modell zum Prototyp
(IEC 62097:2019) (IEC 62097:2019)
This European Standard was approved by CENELEC on 2019-02-12. CENELEC 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 lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62097:2019 E
European foreword
The text of document 4/359/FDIS, future edition 2 of IEC 62097, prepared by IEC/TC 4 "Hydraulic
turbines" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-11-12
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-02-12
document have to be withdrawn
This document supersedes EN 62097:2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 62097:2019 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
ISO 4287 NOTE Harmonized as EN ISO 4287
ISO 4288 NOTE Harmonized as EN ISO 4288
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60193 - Hydraulic turbines, storage pumps and EN 60193 -
pump-turbines - Model acceptance tests
IEC 62097 ®
Edition 2.0 2019-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Hydraulic machines, radial and axial – Methodology for performance
transposition from model to prototype
Machines hydrauliques, radiales et axiales – Méthodologie de transposition des
performances du modèle au prototype
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.140 ISBN 978-2-8322-6277-1
– 2 – IEC 62097:2019 IEC 2019
CONTENTS
FOREWORD . 7
INTRODUCTION . 10
0.1 General remarks . 10
0.2 Basic features . 11
1 Scope . 12
2 Normative references . 12
3 Terms, definitions, units, subscripts and symbols . 12
3.1 Terms and definitions. 12
3.2 List of definitions by topic . 13
3.3 Subscripts and symbols . 14
3.4 Geometric terms . 15
3.5 Physical quantities and properties . 15
3.6 Discharge, velocity and speed terms . 16
3.7 Pressure terms . 16
3.8 Specific energy terms . 16
3.9 Head terms . 17
3.10 Power and torque terms . 18
3.11 Efficiency terms . 19
3.12 Fluid dynamics and scaling terms . 20
3.13 Dimensionless terms . 20
4 Scale-effect formula . 22
4.1 General . 22
4.1.1 Scalable losses . 22
4.1.2 Basic formulae of the scale effect on hydrodynamic friction losses . 23
4.2 Specific hydraulic energy efficiency . 25
4.2.1 General . 25
4.2.2 Radial flow machines . 26
4.2.3 Axial flow machines . 26
4.3 Volumetric efficiency . 26
4.4 Power efficiency (disk friction) . 27
4.4.1 Radial flow machines . 27
4.4.2 Axial flow machines . 27
5 Surface roughness of model and prototype . 28
5.1 General . 28
5.2 Measurement of surface roughness . 28
5.2.1 Procedure . 28
5.2.2 Roughness of model and prototype . 29
5.2.3 Measurement of very rough surfaces . 30
5.3 Surface roughness ranges . 30
6 Standardized values of scalable losses and pertinent parameters . 32
6.1 General . 32
6.2 Specific speed . 33
6.3 Parameters for specific hydraulic energy efficiency transposition . 33
6.3.1 General . 33
6.3.2 Francis turbines . 33
6.3.3 Pump-turbines . 34
IEC 62097:2019 IEC 2019 – 3 –
6.3.4 Axial flow machines . 34
6.4 Parameters for power efficiency (disk friction) transposition . 35
6.4.1 Francis turbines . 35
6.4.2 Pump-turbines . 35
6.4.3 Axial flow machines . 35
7 Transposition to prototype . 36
7.1 General . 36
7.2 Assumed maximum hydraulic efficiency . 37
7.3 Hydraulic efficiency . 38
7.4 Specific hydraulic energy . 39
7.4.1 Turbine operation . 39
7.4.2 Pump operation . 39
7.5 Discharge . 40
7.5.1 Turbine operation . 40
7.5.2 Pump operation . 40
7.6 Torque . 40
7.6.1 Turbine operation . 40
7.6.2 Pump operation . 40
7.7 Power . 41
7.7.1 Turbine operation . 41
7.7.2 Pump operation . 41
8 Calculation procedure . 41
8.1 General . 41
8.2 Reference model.
...
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