EN 13487:2019

Heat exchanger - Forced convection air cooled refrigerant condensers and dry coolers - Sound measurement

1.1   General
This document is one of a series dedicated to air-cooled heat exchangers.
-   forced convection air cooled refrigerant condensers as specified in EN 327;
-   forced convection unit air coolers for refrigeration as specified in EN 328;
-   air cooled liquid coolers "dry coolers" as specified in EN 1048.
This document provides information for assessing and presenting the acoustic emission characteristics of heat exchangers under stationary operating conditions.
This document is applicable to selfstanding forced convection air cooled refrigerant condensers and air cooled liquid coolers "dry coolers" and air coolers.
1.2   Size of source
The method specified in EN ISO 3744, EN ISO 3745, EN ISO 3746, EN ISO 9614 1, EN ISO 9614 2 and EN ISO 9614-3 is applicable to noise sources of any size. Limitations for the size of the source are given in 1.3 of EN ISO 3741:2010, EN ISO 3743 1:2010 and EN ISO 3743 2:2009.
1.3   Object
This document offers ways to determine the sound power level of units. Some of them are specifically adapted to provide results with low uncertainties, by using laboratory class or engineering class acoustic methods under highly controlled working conditions. Those results are suitable for certification, labeling and marking purposes.
This document is concerned with objective methods for determining sound power levels LW, expressed in decibels (dB) with reference to a sound power of one picowatt (1 pW), of airborne acoustical noise within the specified frequency range of interest and for prescribed operating conditions of the appliance to be measured:
-   A-weighted sound power level, LWA;
-   spectral sound power levels;
-   emission sound pressure level at workplace, LpA.

Wärmeübertrager - Ventilatorbelüftete Kältemittelverflüssiger und Trockenkühltürme - Schallmessung

1.1   Allgemeines
Dieses Dokument ist Bestandteil einer Normenreihe für luftgekühlte Wärmeaustauscher.
—   ventilatorbelüfteter Kältemittelverflüssiger, wie in EN 327 angegeben;
—   Ventilatorluftkühler zum Kühlen, wie in EN 328 angegeben;
—   luftgekühlte Flüssigkeitskühler („Trockenkühltürme“), wie in EN 1048 angegeben.
Dieses Dokument enthält Informationen zur Bewertung und Darstellung akustischer Merkmale eines Wärmeaustauschers unter stationären Betriebsbedingungen.
Dieses Dokument gilt für selbststehende ventilatorbelüftete Kältemittelverflüssiger und luftgekühlte Flüssigkeitskühler („Trockenkühltürme“) sowie Luftkühler.
1.2   Größe der Quelle
Das in EN ISO 3744, EN ISO 3745, EN ISO 3746, EN ISO 9614 1, EN ISO 9614 2 und EN ISO 9614 3 angegebene Verfahren gilt für Geräuschquellen jeglicher Größen. Einschränkungen zur Größe der Quelle sind unter 1.3 der EN ISO 3741:2010, EN ISO 3743 1:2010 und EN ISO 3743 2:2009 angegeben.
1.3   Prüfgegenstand
Dieses Dokument enthält Verfahren für die Ermittlung des Schallleistungspegels von Geräten. Einige dieser Verfahren sind speziell darauf ausgelegt Ergebnisse mit geringen Unsicherheiten unter Anwendung von „Präzisionsverfahren“ (Klasse 1) oder „Technischen Verfahren“ (Klasse 2) unter streng geregelten Betriebsbedingungen zu erzeugen. Diese Ergebnisse sind für die Zertifizierung, Etikettierung und Kennzeichnung geeignet.
Dieses Dokument befasst sich mit objektiven Verfahren zur Festlegung der Schallleistungspegel LW, der in Dezibel (dB) ausgedrückt wird, in Bezug auf eine Schallleistung von einem Picowatt (1 pW) der Luftschallemission innerhalb eines interessierenden angegebenen Frequenzbereichs und unter vorgegebenen Betriebsbedingungen des zu messenden Geräts:
—   A-bewerteter Schallleistungspegel LWA;
—   spektrale Schallleistungspegel;
—   Emissionsschalldruckpegel am Arbeitsplatz LpA.

Echangeurs thermiques - Aérocondenseur à convection forcée et batterie froide - Mesurage du bruit

1.1   Généralités
La présente Norme européenne fait partie d'une série de Normes européennes relatives aux échangeurs thermiques à air.
-   les aérocondenseurs à convection forcée tels que spécifiés dans l’EN 327 ;
-   les aérofrigorifères à convection forcée pour la réfrigération tels que spécifiés dans l’EN 328 ;
-   les refroidisseurs de liquide à convection forcée "aéroréfrigérant sec" tels que spécifiés dans l’EN 1048 ;
La présente Norme européenne fournit les informations pour l'évaluation et la présentation des caractéristiques acoustiques des échangeurs thermiques dans des conditions de fonctionnement stationnaires.
La présente Norme européenne s’applique aux aérocondenseurs à convection forcée et aux refroidisseurs de liquide à convection forcée "aéroréfrigérant sec" et aérofrigorifères autonomes.
1.2   Taille de la source
La méthode spécifiée dans l’EN ISO 3744, l’EN ISO 3745, l’EN ISO 3746, l’EN ISO 9614-1 et l’EN ISO 9614 2 s’applique aux sources de bruit de toute taille. Les limites de taille de la source sont données en 1.3 de l'EN ISO 3741:2010, l'EN ISO 3743-1:2010 et l'EN ISO 3743-2:2009.
1.3   Objet
La présente Norme européenne fournit des moyens pour déterminer le niveau de puissance acoustique des appareils. Certains sont spécifiquement adaptés pour fournir des résultats avec des incertitudes faibles, à l'aide de méthodes acoustiques de classe laboratoire ou de classe expertise dans des conditions de travail hautement contrôlées. Ces résultats sont adaptés à des fins de certification, d'étiquetage et de marquage.
La présente norme donne des méthodes objectives pour déterminer les niveaux de puissance acoustique LW, exprimés en décibels (dB) en référence à la puissance acoustique d'un picowatt (1 pW), du bruit aérien dans la plage de fréquence d'intérêt spécifiée et pour les conditions de fonctionnement prescrites du dispositif à mesurer :
-   le niveau de puissance acoustique pondéré A, LWA ;
-   les niveaux de spectre de la puissance acoustique ;
- le niveau de pression acoustique d’émission sur le lieu de travail, LpA.

Prenosniki toplote - Zračno hlajeni kondenzatorji in hladilniki kapljevine s prisilno konvekcijo - Merjenje hrupa

Ta evropski standard spada v skupino evropskih standardov, namenjenih zračno hlajenim prenosnikom toplote:
-   zračno hlajenim kondenzatorjem hladiva s prisilno konvekcijo, kot je opredeljeno v standardu EN 327;
-   hladilnikom zraka s prisilno konvekcijo za hlajenje, kot je opredeljeno v standardu EN 328;
-   zračno hlajenim hladilnikom tekočin, kot je opredeljeno v standardu EN 1048.
Ta standard podaja informacije za ocenjevanje in predstavitev karakteristik akustičnih emisij prenosnikov toplote pri stacionarnem obratovanju. Ta evropski standard se uporablja za samostoječe zračno hlajene kondenzatorje in hladilnike kapljevine ter hladilnike zraka s prisilno konvekcijo.

General Information

• Status: Published
• Publication Date: 06-Aug-2019
• Withdrawal Date: 28-Feb-2020
• ICS: 17.140.20 - Noise emitted by machines and equipment
• ICS: 27.060.30 - Boilers and heat exchangers
• Technical Committee: CEN/TC 110 - Heat exchangers
• Drafting Committee: CEN/TC 110/WG 1 - Heat exchangers used in the field of refrigeration and air conditioning
• Current Stage: 9020 - Submission to 2 Year Review Enquiry - Review Enquiry
• Start Date: 15-Oct-2024
• Completion Date: 15-Oct-2024
• Ref Project: SIST EN 13487:2019 - Heat exchangers - Forced convection air cooled refrigerant condensers and dry coolers - Sound measurement

Relations

• Replaces: EN 13487:2003 - Heat exchangers - Forced convection air cooled refrigerant condensers and dry coolers - Sound measurement
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2019
Nadomešča:
SIST EN 13487:2004
Prenosniki toplote - Zračno hlajeni kondenzatorji in hladilniki kapljevine s prisilno
konvekcijo - Merjenje hrupa
Heat exchangers - Forced convection air cooled refrigerant condensers and dry coolers -
Sound measurement
Wärmeübertrager - Ventilatorbelüftete Kältemittelverflüssiger und Trockenkühltürme -
Schallmessung
Echangeurs thermiques - Aérocondenseur à convection forcée et batterie froide -
Mesurage du bruit
Ta slovenski standard je istoveten z: EN 13487:2019
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
27.060.30 Grelniki vode in prenosniki Boilers and heat exchangers
toplote
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13487
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2019
EUROPÄISCHE NORM
ICS 17.140.20; 27.060.30 Supersedes EN 13487:2003
English Version
Heat exchanger - Forced convection air cooled refrigerant
condensers and dry coolers - Sound measurement
Echangeurs thermiques - Aérocondenseur à convection Wärmeübertrager - Ventilatorbelüftete
forcée et batterie froide - Mesurage du bruit Kältemittelverflüssiger und Trockenkühltürme -
Schallmessung
This European Standard was approved by CEN on 17 June 2019.

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 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 under 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13487:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
1.1 General . 6
1.2 Size of source . 6
1.3 Object . 6
2 Normative references . 7
3 Terms and definitions . 8
4 Description of apparatus types . 11
5 Sound power determination . 13
5.1 General . 13
5.2 Microphone positions and measurement surface for essentially free field conditions
over reflecting plane and sound intensity measurements . 13
5.3 Microphone positions in hard-walled test rooms or special reverberation test rooms . 14
5.4 Background noise . 14
5.5 Calculation of sound power . 14
6 Emission sound pressure level determination . 14
7 Installation and mounting conditions . 15
7.1 Location . 15
7.2 Mounting . 15
8 Operating conditions . 15
8.1 General . 15
8.2 Supply of electrical energy. 15
8.3 Fan speed setting . 16
9 Measurement uncertainties . 16
10 Information to be recorded . 16
10.1 General . 16
10.2 Noise source under test . 16
10.3 Test environment . 17
10.4 Instrumentation . 17
10.5 Acoustical data . 17
11 Information to be reported . 18
11.1 General . 18
11.2 Noise source under test . 18
11.3 Test environment . 18
11.4 Instrumentation . 18
11.5 Acoustical data . 19
12 Declaration and verification of noise emission values . 19
Annex A (normative) Calculation of the sound power with different partial measuring
surfaces in accordance with EN ISO 3744 and EN ISO 3746 . 20
Annex B (normative) Simplified arrangement of measuring points . 21
Annex C (informative) Example of dual-number declaration . 25
Annex D (normative) Deviations from the test subject . 26
Annex E (informative) Directivity . 27
Bibliography . 28

European foreword
This document (EN 13487:2019) has been prepared by Technical Committee CEN/TC 110 “Heat
exchangers”, the secretariat of which is held by DIN.
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 February 2020 and conflicting national standards shall
be withdrawn at the latest by February 2020.
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 identifying any or all such patent rights.
This document supersedes EN 13487:2003.
The main changes compared to the previous edition are:
a) the Scope was completely revised;
b) the Normative references were updated;
c) Terms and Definitions were updated and new terms were introduced;
d) the whole document, including Annexes, was completely revised and rearranged.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Introduction
This document is one of a series dedicated to heat exchangers.
This document provides information for assessing and presenting the acoustic characteristics of heat
exchangers in fan operation.
This document also provides information necessary for specifying and selecting the product which best
suits the needs of the purchaser.
1 Scope
1.1 General
This document is one of a series dedicated to air-cooled heat exchangers.
— forced convection air cooled refrigerant condensers as specified in EN 327;
— forced convection unit air coolers for refrigeration as specified in EN 328;
— air cooled liquid coolers "dry coolers" as specified in EN 1048.
This document provides information for assessing and presenting the acoustic emission characteristics
of heat exchangers under stationary operating conditions.
This document is applicable to selfstanding forced convection air cooled refrigerant condensers and air
cooled liquid coolers "dry coolers" and air coolers.
1.2 Size of source
The method specified in EN ISO 3744, EN ISO 3745, EN ISO 3746, EN ISO 9614-1, EN ISO 9614-2 and
EN ISO 9614-3 is applicable to noise sources of any size. Limitations for the size of the source are given
in 1.3 of EN ISO 3741:2010, EN ISO 3743-1:2010 and EN ISO 3743-2:2009.
1.3 Object
This document offers ways to determine the sound power level of units. Some of them are specifically
adapted to provide results with low uncertainties, by using laboratory class or engineering class
acoustic methods under highly controlled working conditions. Those results are suitable for
certification, labeling and marking purposes.
This document is concerned with objective methods for determining sound power levels L , expressed
W
in decibels (dB) with reference to a sound power of one picowatt (1 pW), of airborne acoustical noise
within the specified frequency range of interest and for prescribed operating conditions of the
appliance to be measured:
— A-weighted sound power level, L ;
WA
— spectral sound power levels;
— emission sound pressure level at workplace, L .
pA
2 Normative references
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.
EN ISO 3741:2010, Acoustics - Determination of sound power levels and sound energy levels of noise
sources using sound pressure - Precision methods for reverberation test rooms (ISO 3741:2010)
EN ISO 3743-1:2010, Acoustics - Determination of sound power levels and sound energy levels of noise
sources using sound pressure - Engineering methods for small movable sources in reverberant fields - Part
1: Comparison method for a hard-walled test room (ISO 3743-1:2010)
EN ISO 3743-2:2009, Acoustics - Determination of sound power levels of noise sources using sound
pressure - Engineering methods for small, movable sources in reverb
...