DIN EN 13141-9-2008 Ventilation for buildings - Performance testing of components products for residential ventilation - Part 9 Externally mounted humidity controlled air transfer .pdf

1、October 2008DEUTSCHE NORM English price group 12No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 91.140.30!$RSf“1474867

2、www.din.deDDIN EN 13141-9Ventilation for buildings Performance testing of components/products for residentialventilation Part 9: Externally mounted humidity controlled air transfer deviceEnglish version of DIN EN 13141-9:2008-10Lftung von Gebuden Leistungsprfung von Bauteilen/Produkten fr die Lftung

3、 von Wohnungen Teil 9: Feuchtegeregelte ZuluftdurchlsseEnglische Fassung DIN EN 13141-9:2008-10www.beuth.deDocument comprises 26 pagesDIN EN 13141-9:2008-10 2 National foreword This standard has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings” (Secretariat: BSI, United Kin

4、gdom). The responsible German body involved in its preparation was the Normenausschuss Heiz- und Raumluft-technik (Heating and Ventilation Technology Standards Committee), Technical Committee NA 041-02-51 AA Lftung von Wohnungen. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13141-9 May 2008

5、ICS 91.140.30 English Version Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 9: Externally mounted humidity controlled air transfer device Ventilation des btiments - Essais de performance des composants/produits pour la ventilation des logem

6、ents - Partie 9: Dispositif de transfert dair hygrorglable mont en extrieur Lftung von Gebuden - Leistungsprfung von Bauteilen/Produkten fr die Lftung von Wohnungen - Teil 9: Feuchtegeregelte Zuluftdurchlsse This European Standard was approved by CEN on 11 April 2008. CEN members are bound to comply

7、 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 Managemen

8、t 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 Management Centre has the same status as the o

9、fficial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,

10、Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for

11、 CEN national Members. Ref. No. EN 13141-9:2008: EEN 13141-9:2008 (E) 2 Contents Foreword. 3 1 Scope 5 2 Normative references . 5 3 Terms and definitions. 5 4 Symbols and abbreviations . 6 5 Performance testing of aerodynamic characteristics. 6 5.1 Aero and hygro-dynamic performance. 6 5.1.1 Princip

12、le . 6 5.1.2 Test installation, conditions and uncertainty of measurement 6 5.1.3 Test procedure 9 5.1.4 Analysis of results 17 5.1.5 Test report . 18 5.2 Other tests . 18 5.2.1 Time response test . 18 5.2.2 Air tightness when closed (for closeable externally mounted air transfer device) . 19 5.2.3

13、Air diffusion in the occupied zone 19 5.2.4 Sound insulation . 20 Annex A (normative) Calculation method for the temperature coefficient 21 A.1 General. 21 A.2 Analysis . 21 A.3 Procedure 22 Bibliography . 24 Page DIN EN 13141-9:2008-10 EN 13141-9:2008 (E) 3 Foreword This document (EN 13141-9:2008)

14、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 November 2008, and conflic

15、ting national standards shall be withdrawn at the latest by November 2008. 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. This docume

16、nt is one of a series of standards on residential ventilation. The performance characteristics of the components/products for residential ventilation are given in EN 13142. The position of this document in the field of mechanical building services is shown in Figure 1. According to the CEN/CENELEC I

17、nternal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,

18、 Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 13141-9:2008-10 EN 13141-9:2008 (E) 4 Figure 1 Position of EN 13141-9 in the field of mechanical building services DIN EN 13141-9:2008-10 EN 13141-9:2008 (E) 5 1 Scop

19、e This European Standard specifies laboratory methods for testing humidity controlled air inlets operating under pressure differences. It applies to all devices located between one room and outside and controlled on indoor humidity. For instance, devices of the following types: humidity controlled d

20、evices with fixed setting; manually openable or closable humidity controlled devices; humidity controlled devices self-adjusting on pressure difference. It describes tests intended to characterise: aero and hygro-dynamic performance; air tightness when closed (for closable humidity controlled air in

21、let); air diffusion in the occupied zone; sound insulation; time response. This European Standard does not apply to the evaluation of air filtration, condensation risk and noise production. 2 Normative references The following referenced documents are indispensable for the application of this docume

22、nt. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12792:2003, Ventilation for buildings Symbols, terminology and graphical symbols EN 13141-1:2004, Ventilation for buildings Performan

23、ce testing of components/products for residential ventilation Part 1: Externally and internally mounted air transfer devices 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12792:2003, EN 13141-1:2004 and the following apply. 3.1 hysteresis value defi

24、ned as the difference of relative humidity, read on the response curve for the same flow, in % RH DIN EN 13141-9:2008-10 EN 13141-9:2008 (E) 6 4 Symbols and abbreviations For the purposes of this document the symbols and units given in EN 12792:2003 and the symbols and units given in Table 1 apply.

25、Table 1 Symbols and units Term Symbol Unit humidity minimum airflow qvmin l. s-1maximum airflow qvmax l. s-1relative humidity p% RH maximum relative humidity for minimum airflow p min % RH minimum relative humidity for maximum airflow p max% RH 5 Performance testing of aerodynamic characteristics 5.

26、1 Aero and hygro-dynamic performance 5.1.1 Principle This test consists of measuring several volume flow rates induced through a device controlled by humidity conditions, under an applied static pressure difference, to define the flow rate/humidity characteristic curve. 5.1.2 Test installation, cond

27、itions and uncertainty of measurement 5.1.2.1 Test installation and conditions The test facility shall include two rooms controlled both in humidity and temperature, the first one representing outside conditions, the other one indoor conditions as described in Figure 3. The test installation and the

28、 indoor room shall comply with 4.1.2.1 of EN 13141-1:2004. The test facilities shall have a range from 0 Pa to + 100 Pa. Special care to limit air velocities around the inlet in the test box should be taken: air velocities shall be measured at locations specified in Figure 2. The measures shall not

29、exceed 0,10 m.s-1at these points without air flow through the air inlet. DIN EN 13141-9:2008-10 EN 13141-9:2008 (E) 7 dllKey Locations of the measurement points d = 0,04 m l = 0,20 m Figure 2 Locations of measurement points DIN EN 13141-9:2008-10 EN 13141-9:2008 (E) 8 12354A B5Key A humidity and tem

30、perature controlled room for indoor conditions B humidity and temperature controlled room for outdoor conditions 1 device under test 2 test plate dimensions as in EN 13141-1 (see Figure 4) 3 insulated wall to avoid condensation in room A 4 avoid high air velocity around the air intake of the device

31、under test e.g. a perforated plate can be used 5 static pressure probes or piezometric ring Figure 3 Test installation To avoid difficulties in the control of the room (A), the volume shall be big enough, especially for non-isothermal conditions measurements for which the “outside air” room (B) may

32、strongly interfere with the climate in room (A). The size of room (B) is normally of lesser importance as the climate conditions are not to be so accurate as in room (A), nevertheless it shall not affect the low velocity on the air intake of the device under test. The wall between room (A) and room

33、(B) shall be insulated to avoid low temperature radiation on the device under test. Test plates shall conform to EN 13141-1. The air permeability of the test equipment between the air inlet and the airflow/pressure measurement devices shall be measured with the test specimen sealed, over the same ra

34、nge of pressure differences used during the performance testing of the specimen. The air permeability of the test equipment shall be reported and shall generate a leakage lower than 1 l. s-1 at 100 Pa. DIN EN 13141-9:2008-10 EN 13141-9:2008 (E) 9 For low airflow measurements, it may be necessary to

35、introduce some additional by-pass flow. This by-pass flow shall be measured alone and reported. In all cases, the leakage airflow shall be measured and used in the test report for correction of values and for uncertainty calculations. 5.1.2.2 Uncertainty of measurement The pressure shall be measured

36、 with an uncertainty lower than: 0,2 + 0,03 (measured value) (Pa) The volume flow rate shall be measured with an uncertainty lower than: 0,3 + 0,03 (measured value) (ls-1) The temperature shall be measured with an uncertainty lower than 0,5 K. The relative humidity shall be measured with an uncertai

37、nty lower than 2 % RH. 5.1.3 Test procedure 5.1.3.1 Choice of tests to be performed To check the humidity control of the devices, the measurements shall be taken in isothermal conditions (see 5.1.3.2) for at least one pressure difference (chosen by the manufacturer) in the following pressure differe

38、nce ranges (bands) given in Table 2: 1, 2, 4, 10 or 20 Pa. Measurements in non-isothermal conditions (see 5.1.3.3) at the same chosen pressure shall be made if the sensor can be influenced by outdoor air temperature. Table 2 Pressure difference ranges Pressure difference, p Permissible deviation dur

39、ing test Pa Pa 1 0,25 2 0,5 4 1 10 1 20 1 For manually openable or closable devices, in addition, the tests of EN 13141-1 shall be done in open and closed conditions. For pressure difference controlled devices, in addition self regulation shall be verified (see 5.1.3.4) in isothermal conditions. DIN

40、 EN 13141-9:2008-10 EN 13141-9:2008 (E) 10 For non pressure difference controlled devices, an additional test shall be done according to EN 13141-1 to determine the flow exponent at the middle point of the response curve to measure the impact of pressure on the aperture. The test procedure of 5.1.3.

41、4 of this document and 4.1.3 of EN 13141-1:2004 shall be used for fixed devices. The report shall give values of the flow exponent for the corresponding pressure difference as shown in Table 3. If the regression law coefficient is lower than or equal to 0.95, a unique value of the flow exponent shal

42、l be provided. Table 3 Values of the flow exponent for the corresponding pressure difference Pressure difference, p Flow exponent, Kp (Pa) 1 Kp1 2 Kp2 4 Kp4 10 Kp10 20 Kp20 The values Kp1 to Kp20 shall be calculated according to the following: qv(p) = qv(p nom) (p / p nom)KpThe environmental conditi

43、ons existing during the tests such as temperature, barometric pressure shall be recorded. For humidity controlled air inlet without self regulating device, the following correction shall be applied: measnomvmeasvppqq= where qv measis the measured value at pmeas, in ls-1pmeasis the test pressure, in

44、Pa pnomis the nominal test pressure given by the manufacturer, in Pa With qvis the corrected value for the nominal pressure, in ls-1For humidity controlled air inlet with self regulating device, this correction shall not be applied. 5.1.3.2 Isothermal tests of humidity control 5.1.3.2.1 General In t

45、his test the outdoor air conditions (temperature, humidity) shall be fixed. The indoor temperature shall be fixed and the relative humidity varies. Indoor and outdoor temperature shall be equal. DIN EN 13141-9:2008-10 EN 13141-9:2008 (E) 11 5.1.3.2.2 Outdoors conditions Fixed temperature: (21 +/- 1)

46、 C Fixed relative humidity: (55 +/- 5) % RH 5.1.3.2.3 Indoors conditions The characteristic curve airflow vs indoor relative humidity shall be measured at the pressure difference defined by the inlet manufacturer. The range of humidity during the test shall also be defined in the manufacturers decla

47、ration. The minimum value of humidity p1shall be the minimum declared less 20 % RH, so that minp1pmin pRH%20 NOTE If this value is lower than 30 % RH, a minimum value of 30 % may be accepted for test conditions due to the difficulty of realisation. The maximum value of humidity shall be the maximum

48、declared plus 20 % RH, so that RH%20maxp2pmax p+ The tests shall be performed with first an increase of humidity from minimum p1to maximum p2,then a decrease back. This test shall be done in the same conditions as for isothermal measurements. The measurements shall be done at minimum humidity, in th

49、ree humidity regularly spaced in between minimum and maximum (one in the middle point) and then at maximum for the increasing cycle. If necessary, more points shall be tested to avoid steps of humidity larger than 10 % RH. Similar points shall be measured while decreasing, which induces a minimum of nine test points. Before measurements, the inlet shall at least realise such one cycle of humidity. DIN EN 13141-9:2008-10 EN 13141-9:2008 (E) 12 Key X humidity Y airf