SIST EN 1151-2:2007
(Main)Pumps - Rotodynamic pumps - Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations - Part 2: Noise test code (vibro-acoustics) for measuring structure- and fluid-borne noise
Pumps - Rotodynamic pumps - Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations - Part 2: Noise test code (vibro-acoustics) for measuring structure- and fluid-borne noise
This part of EN 1151 specifies a test code for the vibro-acoustic characterisation of circulation pumps as defined in EN 1151-1, and is limited to circulation pumps with threaded connections of 11 inch. The test code comprises the test rig, the measurement method and the test conditions.
The characterisation principle is based on measuring the structure-borne and the fluid-borne power transmitted respectively by vibration and pressure fluctuations in the pipe connected to a circulation pump.
Pumpen - Kreiselpumpen - Umwälzpumpen mit elektrischer Leistungsaufnahme bis 200 W für Heizungsanlagen und Brauchwassererwärmungsanlagen für den Hausgebrauch - Teil 2: Geräuschprüfvorschrift (vibro-akustisch) zur Messung von Körperschall und Flüssigkeitsschall
Dieser Teil von EN 1151 legt eine Prüfvorschrift für die vibro-akustische Beschreibung von Umwälzpumpen nach EN 1151-1 fest, ist jedoch auf Umwälzpumpen mit einer Schraubverbindung von 11" beschränkt. Die Prüfvorschrift umfasst den Prüfstand, das Messverfahren und die Prüfbedingungen.
Grundlage der Beschreibung ist die Messung von Körperschallleistung und Flüssigkeitsschallleistung, die durch Schwingungen bzw. Druckpulsationen in der mit der Umwälzpumpe verbundenen Rohrleitung weitergeleitet werden.
Pompes - Pompes rotodynamiques - Circulateurs de puissance absorbée n'excédant pas 200 W, destinés aux installations de chauffage central et d'eau chaude sanitaire domestique - Partie 2 : Code d'essai acoustique (vibro-acoustique) pour le mesurage des bruits solidiens et de liquide
La présente partie de l’EN 1151 spécifie un code d'essai pour la caractérisation vibro-acoustique des
circulateurs tels que définis dans l'EN 1151-1, et est limitée aux circulateurs ayant des raccords filetés de 1"1.
Le code d'essai comprend la boucle d’essai, la méthode de mesurage et les conditions d’essai.
Le principe de caractérisation est basé sur la mesure de la puissance, solidienne et dans le liquide, transmise
respectivement par vibration et par fluctuations de pression dans le tuyau raccordé au circulateur.
Črpalke - Centrifugalne črpalke - Obtočne črpalke z naznačeno vhodno močjo do največ 200 W za grelne inštalacije in gospodinjske toplovodne inštalacije - 2. del: Oznaka preskusa hrupa (vibro-akustičnega) pri merjenju hrupa konstrukcije in hrupa tekočine
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Pumps - Rotodynamic pumps - Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations - Part 2: Noise test code (vibro-acoustics) for measuring structure- and fluid-borne noisePompes - Pompes rotodynamiques - Circulateurs de puissance absorbée n'excédant pas 200 W, destinés aux installations de chauffage central et d'eau chaude sanitaire domestique - Partie 2 : Code d'essai acoustique (vibro-acoustique) pour le mesurage des bruits solidiens et de liquidePumpen - Kreiselpumpen - Umwälzpumpen mit elektrischer Leistungsaufnahme bis 200 W für Heizungsanlagen und Brauchwassererwärmungsanlagen für den Hausgebrauch - Teil 2: Geräuschprüfvorschrift (vibro-akustisch) zur Messung von Körperschall und FlüssigkeitsschallTa slovenski standard je istoveten z:EN 1151-2:2006SIST EN 1151-2:2007en23.080ýUSDONHPumpsICS:SIST EN 1151:20001DGRPHãþDSLOVENSKI
STANDARDSIST EN 1151-2:200701-januar-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1151-2April 2006ICS 23.080Supersedes EN 1151:1999
English VersionPumps - Rotodynamic pumps - Circulation pumps having a ratedpower input not exceeding 200 W for heating installations anddomestic hot water installations - Part 2: Noise test code (vibro-acoustics) for measuring structure- and fluid-borne noisePompes - Pompes rotodynamiques - Circulateurs depuissance absorbée n'excédant pas 200 W, destinés auxinstallations de chauffage central et d'eau chaude sanitairedomestique - Partie 2: Code d'essai acoustique (vibro-acoustique) pour le mesurage des bruits solidiens et deliquidePumpen - Kreiselpumpen - Umwälzpumpen mit elektrischerLeistungsaufnahme bis 200 W für Heizungsanlagen undBrauchwassererwärmungsanlagen für den Hausgebrauch -Teil 2: Geräuschprüfvorschrift (vibro-akustisch) zurMessung von Körperschall und FlüssigkeitsschallThis European Standard was approved by CEN on 27 February 2006.CEN members are bound to comply with 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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1151-2:2006: E
EN 1151-2:2006 (E) 2 Contents Page Foreword.4 Introduction.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 Test rig.7 4.1 General.7 4.2 Main components of test rig.7 4.3 Specification of test rig components.8 4.4 Assembly.11 4.5 Foundation.11 4.6 Qualifications.11 4.7 Instrumentation.11 4.7.1 Measurement of pressure fluctuations.11 4.7.2 Measurement of vibration.11 4.8 Calibration.12 4.8.1 Accelerometers.12 4.8.2 Pressure transducers.12 4.8.3 Calibration of accelerometers and pressure transducers.12 4.9 Propagation factors.12 5 Installation and operation of the tested pump.13 5.1 Installation of the pump.13 5.2 Operating parameters.14 5.3 Initial operation time.14 6 Factors influencing measurements.14 6.1 Electromagnetic surroundings.14 6.2 Earth loops.14 6.3 Vibration surroundings.14 7 Determination of fluid- and structure-borne powers.14 7.1 Frequency range.14 7.2 Measurement parameters.14 7.2.1 Pressure fluctuation measurement parameters.14 7.2.2 Vibration measurement parameters.15 7.3 Sense of power propagation.15 7.4 Fluid-borne power determination.15 7.4.1 General.15 7.4.2 Fluid-borne intensity.15 7.4.3 Fluid-borne power.16 7.5 Structure-borne power determination.16 7.5.1 General.16 7.5.2 Structure-borne intensity.16 7.5.3 Structure-borne power.17 7.6 Overall values of power.17 7.7 Coefficients of energy propagation and power levels.18 7.7.1 Coefficient of fluid-borne energy propagation.18 7.7.2 Coefficient of structure-borne energy propagation.18 7.7.3 Fluid-borne power level.18 7.7.4 Structure-borne power level.18
EN 1151-2:2006 (E) 3 8 Information to be reported.19 Annex A (informative) Bending wavenumber and intensity dimensional constant.20 Bibliography.21
EN 1151-2:2006 (E) 4 Foreword This document (EN 1151-2:2006) has been prepared by Technical Committee CEN/TC 197 “Pumps”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2006, and conflicting national standards shall be withdrawn at the latest by October 2006. This document, together with EN 1151-1:2006, supersedes EN 1151:1999.
EN 1151 consists of the following parts under the general title Pumps — Rotodynamic pumps — Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations: -Part 1: Non-automatic circulation pumps, requirements, testing, marking. -Part 2: Noise test code (vibro-acoustics) for measuring structure and fluid-borne noise. 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 or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 1151-2:2006 (E) 5 Introduction This part of EN 1151 covers the measurement of fluid and structure-borne noise as induced by small circulation pumps. It has been prepared in response to the need of having uniform procedures as requirements for noise levels especially in residential housing, tightened by national and European regulations. The issue of airborne noise is covered by other standards.
EN 1151-2:2006 (E) 6 1 Scope This part of EN 1151 specifies a test code for the vibro-acoustic characterisation of circulation pumps as defined in EN 1151-1, and is limited to circulation pumps with threaded connections of 1½ inch. The test code comprises the test rig, the measurement method and the test conditions. The characterisation principle is based on measuring the structure-borne and the fluid-borne power transmitted respectively by vibration and pressure fluctuations in the pipe connected to a circulation pump. 2 Normative references The 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. EN 1151-1:2006, Pumps — Rotodynamic pumps — Circulation pumps having a ratecd power input not exceeding 200 W for heating installations and domestic hot water installations — Part 1: Non-automatic circulation pumps, requirements, testing, marking. ISO 2016, Capillary solder fittings for copper tubes — Assembly dimensions and tests. 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1151-1:2006 and the following apply. 3.1 fluid-borne intensity Ifb
time averaged rate of flow of the acoustic energy per cross section of fluid transmitted lengthways the straight pipe by internal pressure fluctuations NOTE 1 Its sign can be positive or negative indicating the sense of energy propagation. NOTE 2 Fluid-borne intensity is expressed in W/m2. 3.2 fluid-borne power Pfb net acoustic power emitted by a source of pressure fluctuations in the connected straight pipe 〈circulation pumps〉
NOTE 1 Fluid-borne power is always positive. NOTE 2 Fluid-borne power is expressed in W. 3.3 structure-borne intensity Isb time averaged rate of flow of the vibrational energy per unit of length transmitted lengthways the straight pipe by vibration
NOTE 1 Its sign can be positive or negative indicating the sense of energy propagation. NOTE 2 Isb is an average of the structure borne intensity over the pipe wall thickness and is therefore expressed in W/m.
EN 1151-2:2006 (E) 7 3.4 structure-borne power Psb net vibration power emitted by a source of vibration in the connected straight pipe 〈circulation pumps〉 NOTE 1 Structure-borne power is always positive. NOTE 2 Structure-borne power is expressed in W. 3.5 coefficient of fluid-borne energy reflection Rfb ratio between the net fluid-borne power reflected by pipework discontinuities and the net fluid borne power emitted in a straight pipe by a pump 〈circulation pumps〉 NOTE 1 Pipework discontinuities covers bends, obstructions, section changes, pipe fixations etc.
NOTE 2 This coefficient is always positive and is non-dimensional. 3.6 coefficient of structure-borne energy reflection Rsb ratio between the net structure-borne power reflected by pipework discontinuities and the net structure borne power emitted in a straight pipe by a pump 〈circulation pumps〉 NOTE 1 Pipework discontinuities covers bends, obstructions, section changes, pipe fixations etc.
NOTE 2 This coefficient is always positive and is non-dimensional. 3.7 fluid-borne power level LWfb logarithmic measure of the fluid-borne power emitted in the straight pipe by a source 〈circulation pumps〉 3.8 structure-borne power level LWsb logarithmic measure of the structure-borne power emitted in the straight pipe by a source 〈circulation pumps〉 3.9 steady state temperature period of time during which the variation of temperature on the motor and on the body of the circulation pump is contained between limits specified by the manufacturer 4
Test rig 4.1
General The fluid- and structure-borne powers are determined from measurement data acquired from the test rig. Components and assembly of the test-rig are described below. To get repeatable and reproducible results of the measurements, it is essential to use a rig, which is in accordance with or corresponds to all specifications and assembly advice given here. 4.2
Main components of test rig The test rig is illustrated in Figure 1 and its main components are given in Table 1.
EN 1151-2:2006 (E) 8 Table 1 — Main components of test rig No. Component Purpose 1 Circulation pump Test object: source of pressure pulsation and vibration. 2 Vibration measurement pipe Acquisition of vibration data allowing the determination of the structure-borne power. 3 Solid anechoic termination Device absorbing structure-borne power. 4 Pressure pulsation measurement pipe Acquisition of pressure fluctuation data allowing the determination of the fluid-borne power. 5 Liquid anechoic termination Device absorbing fluid-borne power. 6 Water tank Acoustical isolation of the regulation valve. 7 Pressure vessel Device equalizing the system pressure. 8 Flow meter Measurement of flow rate 9 Regulation valve Flow rate regulation 10 Pipe supports Connecting devices of pipework with frame. 11 Frame Metal structure.
Figure 1 — Test rig 4.3 Specification of test rig components Table 2 provides the necessary overview of the specified components of the test rig.
EN 1151-2:2006 (E) 9 Table 2 — Specification of components Ref. Component/Part Qty. Specification/Remark 1
Circulation pu
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