SIST EN 13141-5:2005
(Main)Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 5: Cowls and roof outlet terminal devices
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 a injection) sont trop récentes pour etre 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
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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
SIST EN 13141-5:2005
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
EN 13141-5:2004 (E) 2 Contents page Foreword.3 Introduction.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Performance testing of aerodynamic characteristics.6 4.1 Pressure drop.6 4.1.1 Test installation.6 4.1.2 Test procedure.6 4.1.3 Analysis of results.8 4.2 Suction effect of a cowl.8 4.2.1 Test installation and conditions.8 4.2.2 Measurement conditions and uncertainties.9 4.2.3 Preliminary test.10 4.2.4 Wind effect and flow rate tests.10 4.2.5 Test procedure.10 4.2.6 Analysis of results.11 4.3 Presentation of results.12 5 Additional testing for fan assisted cowls.12 5.1 General.12 5.2 Aerodynamic testing.12 5.3 Acoustic testing.12 5.4 Effective power input.12 5.4.1 Test Method.12 5.4.2 Analysis of results.12 5.4.3 Presentation of results.12 Annex A (normative)
Derivation of values through the similitude law.13 Bibliography.14
SIST EN 13141-5:2005
EN 13141-5:2004 (E) 3 Foreword This document (EN 13141-5:2004) has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings”, the secretariat of which is held by BSI. 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 April 2005, and conflicting national standards shall be withdrawn at the latest by April 2005. 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 13141-5:2005
EN 13141-5:2004 (E) 4 Introduction
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 13141-5:2004 (E) 5 1 Scope 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. 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 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
EN 13141-5:2004 (E) 6 4 Performance testing of aerodynamic characteristics 4.1 Pressure drop 4.1.1 Test installation The pressure drop characteristics of the cowl or roof outlet shall be tested in a test installation such as is shown in Figure 2 but without the wind tunnel. The test installation shall comprise the following : an adjustable air supply incorporating an air flow rate measuring device with an uncertainty in accordance with 4.1.2 (e.g. orifice plate or venturi tube conforming with EN ISO 5167-1, or other flow meter such as a rotameter). The air supply passes via an airtight duct;
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 P
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