EN 13141-5:2004

Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 5: Cowls and roof outlet terminal devices

This document specifies methods for measuring the aerodynamic and acoustic characteristics of cowls and roof outlets used in both natural and mechanical ventilation. Only those cowls and roof outlets fitted onto ducts which project above the roof surface are covered by the present standard.
Regarding the assisted cowls, only the fan assisted cowls are covered by the present standard, other types (such as injection assisted cowls) being too recent to be adequately considered for the time being.
The performance testing of the "assistance" provided by the auxiliary fan of an assisted cowl is excluded for the scope of this standard.

Lüftung von Gebäuden - Leistungsprüfung von Bauteilen/Produkten für die Lüftung von Wohnungen - Teil 5: Hauben und Dach-Fortluftdurchlässe

Diese Europäische Norm legt die Verfahren für die Messung der aerodynamischen und akustischen Kenngrößen von Hauben und Dach Fortluftdurchlässen fest, die in Anlagen für die freie und maschinelle Lüftung verwendet werden. Die vorliegende Norm gilt nur für die Hauben und Dach Fortluftdurchlässe, die auf Luftleitungen eingebaut sind, die über die Dachoberfläche hinausragen.
Von den Hauben mit Unterstützung sind hier nur ventilatorgestützte Hauben behandelt, da andere Arten (wie zum Beispiel Hauben mit Einblasunterstützung) noch zu neu sind, um auf angemessene Art berücksichtigt zu werden.
Die Leistungsprüfung der "Unterstützung", die durch den Hilfsventilator einer ventilatorgestützten Haube geboten wird, liegt außerhalb des Anwendungsbereichs dieser Norm.

Ventilation des bâtiments - Essais des performances des composants/produits pour la ventilation des logements - Partie 5 : Extracteurs statiques et dispositifs de sortie en toiture

La présente document spécifie des méthodes pour mesurer les caractéristiques aérauliques et acoustiques des extracteurs statiques et dispositifs de sortie en toiture utilisés en ventilation naturelle et en ventilation mécanique. Seuls les extracteurs statiques et dispositifs de sorties en toiture installés sur des conduits qui dépassent la surface du toit sont couverts par la présente norme.
En ce qui concerne les extracteurs statiques motorisés, seuls les extracteurs statiques assistés d'un ventilateur sont couverts par la présente norme, les autres catégories (comme les extracteurs statiques motorisés à injection) sont trop récentes pour être valablement prises en compte.
Les essais de performance de " l'assistance " apportée par le ventilateur auxiliaire d'un extracteur statique motorisé assisté d'un ventilateur est exclu du domaine d'application de la présente norme.

Prezračevanje stavb - Preskušanje lastnosti stanovanjskih prezračevalnih komponent/izdelkov - 5. del: Prezračevalne kape in strešni iztoki na strehah

General Information

• Status: Withdrawn
• Publication Date: 26-Oct-2004
• Withdrawal Date: 27-Oct-2020
• ICS: 91.140.30 - Ventilation and air-conditioning systems
• Technical Committee: CEN/TC 156 - Ventilation for buildings
• Drafting Committee: CEN/TC 156/WG 2 - Natural and mechanical powered residential ventilation
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 28-Oct-2020
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Ref Project: SIST EN 13141-5:2005 - Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 5: Cowls and roof outlet terminal devices

Relations

• Replaced By: EN 13141-5:2020 - Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 5: Cowls, assisted cowls and roof outlet terminal devices
• Effective Date: 04-Nov-2020

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HYDOQLKLüftung von Gebäuden - Leistungsprüfung von Bauteilen/Produkten für die Lüftung von Wohnungen - Teil 5: Hauben und Dach-FortluftdurchlässeVentilation des bâtiments - Essais des performances des composants/produits pour la ventilation des logements - Partie 5 : Extracteurs statiques et dispositifs de sortie en toitureVentilation for buildings - Performance testing of components/products for residential ventilation - Part 5: Cowls and roof outlet terminal devices91.140.30VLVWHPLVentilation and air-conditioningICS:Ta slovenski standard je istoveten z:EN 13141-5:2004SIST EN 13141-5:2005en01-januar-2005SIST EN 13141-5:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13141-5October 2004ICS 91.140.30English versionVentilation for buildings - Performance testing ofcomponents/products for residential ventilation - Part 5: Cowlsand roof outlet terminal devicesVentilation des bâtiments - Essais des performances descomposants/produits pour la ventilation des logements -Partie 5 : Extracteurs statiques et dispositifs de sortie entoitureLüftung von Gebäuden - Leistungsprüfung vonBauteilen/Produkten für die Lüftung von Wohnungen - Teil5: Hauben und Dach-FortluftdurchlässeThis European Standard was approved by CEN on 9 July 2004.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, 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© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13141-5:2004: ESIST EN 13141-5:2005

Derivation of values through the similitude law.13 Bibliography.14
Figure 1 - Position of EN 13141-5 in the field of the mechanical building services
Mechanical Building ServicesControl systemsVentilation and airconditioning systemsHeating systemsDuctworkAir terminaldevicesAir handlingunitsMechanical andnatural residentialventilationDesign criteriafor the indoorenvironmentSystemperformanceInstallationComponents/productsfor residential ventilation -Required and optionalperformancecharacteristicsPerformance testing ofcomponents/productsfor residential ventilationSimplifiedcalculation methodsfor residential ventilationsystemsDesign anddimensioningfor residential ventilationsystemsPerformance testingfor residential ventilationsystemsPart 1: Externally and internally mounted air transfer devicesPart 2: Exhaust and supply air terminal devicesPart 3: Range hoods for residential usePart 4: Fans used in residential ventilation systemsPart 5: Cowls and roof outlet terminal devicesPart 6: Exhaust ventilation system packages used in a singledwellingSIST EN 13141-5:2005

EN 1506:1997, Ventilation for buildings - Sheet metal air ducts and fittings with circular cross-section – Dimensions. EN 12792:2003, Ventilation for buildings - Symbols, terminology and graphical symbols. EN 13141-4:2004, Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 4: Fans used in residential ventilation systems. ISO 5801, Industrial Fans - Performance testing using standardized airways.
3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12792:2003 and the following apply. 3.1 cowl air terminal device with or without moving component, intended to be fitted on top of an exhaust duct, with aim, by creating negative pressure depending of the wind speed, to avoid reverse flow and to increase the extracted flow rate in presence of wind 3.2 assisted cowl cowl fitted with an auxiliary device using other energy source than wind to compensate for lack of suction effect 3.3 fan assisted cowl assisted cowl where the auxiliary device is a fan 3.4 roof outlet air terminal device used for mechanical ventilation systems 3.5 pressure factor measure of the suction effect due to the wind. Ratio of the measured pressure difference to the dynamic pressure of the wind at a given vertical wind approach angle 3.6 test-voltage voltage to be used for supplying the motorised cowl during the testing SIST EN 13141-5:2005

 means to stabilize the flow and pressure upstream the test duct, for example an airtight plenum chamber (side length at least 4 times the smallest diameter of the test duct) containing flow settling screens at the air entry zone and a smooth outlet;
 an airtight test circular duct to carry the cowl or roof outlet under test, of diameter D chosen according to EN 1506:1997, Table 1 to suit this cowl or roof outlet and of length : DL6
=. 4.1.2 Test procedure When testing a fan assisted cowl, the auxiliary fan shall be switched-off. The test shall be carried out by varying the air flow rate through the cowl or roof outlet to give static pressure differences between the test duct and the room in which the test is carried out, of 5 Pa, 10 Pa, 20 Pa and 50 Pa. The parameters to be measured are:  air volume flow rate through the cowl or roof outlet;
 total pressure difference between the test duct and the room in which the test is carried out. The pressure tapping in the test duct shall be 3D upstream of the cowl or roof outlet under test (D being the smallest diameter of the test duct). The total pressure in the duct is calculated by measuring the static pressure and the averaged air velocity in the duct (the volume flow rate divided by the duct area) The uncertainty of the air flow measurement shall be lower than : 0,3 + 0,03 x (measured value), in dm3/s. The uncertainty of the pressure measurement shall be lower than : 0,5 + 0,03 × (measured value), in Pa. The environmental conditions existing during the tests such as temperature, air pressure shall be recorded. SIST EN 13141-5:2005

Key 1 Wind tunnel 7 Sealed for preliminary suction test 12 Fan with flow rate adjusting device 2 Wind velocity 8 Flow setting screens 13 Air supply 3 Cowl 9 Plenum chamber 4 Pressure sensor in the wind 10 Flow measuring device 5 Test duct 11 Flow straightener 6 Static pressure
measurement device Figure 2 - Typical example of a test installation SIST EN 13141-5:2005

273(293aameas vcor vp+=qq where: qv is the volume flow rate, in dm3/s qv cor is the corrected volume flow rate, in dm3/s qv meas
is the measured volume flow rate, in dm3/s pa is the ambient pressure, in Pa θa is the ambient temperature, in °C 4.2 Suction effect of a cowl 4.2.1 Test installation and conditions The suction effect characteristics of the cowl shall be tested in a test installation such as shown in Figure 2 and described in 4.1.1. For the suction effect test the wind tunnel is required. Static pressure shall be measured with two pressure probes (and more) located in the working section far enough the cowl, at each side of the wind cross section. Reference
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