1、October 2008DEUTSCHE NORM English price group 11No 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!$RRs“1474780
2、www.din.deDDIN EN 13141-10Ventilation for buildings Performance testing of components/products for residentialventilation Part 10: Humidity controlled extract air terminal deviceEnglish version of DIN EN 13141-10:2008-10Lftung von Gebuden Leistungsprfung von Bauteilen/Produkten fr die Lftung von Woh
3、nungen Teil 10: Feuchtegeregelte AbluftdurchlsseEnglische Fassung DIN EN 13141-10:2008-10www.beuth.deDocument comprises 18 pagesDIN EN 13141-10:2008-10 2 National foreword This standard has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings” (Secretariat: BSI, United Kingdom)
4、 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 13141-10 May 2008 ICS
5、91.140.30 English Version Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 10: Humidity controlled extract air terminal device Ventilation des btiments - Essais de performance des composants/produits pour la ventilation des logements - Partie
6、10: Bouche dextraction dair hygrorglable Lftung von Gebuden - Leistungsprfungen von Bauteilen/Produkten fr die Lftung von Wohnungen - Teil 10: Feuchtegeregelte Abluftdurchlsse This European Standard was approved by CEN on 11 April 2008. CEN members are bound to comply with the CEN/CENELEC Internal R
7、egulations 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 Management Centre or to any CEN member. T
8、his 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 official versions. CEN members ar
9、e 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, Slovenia, Spain, Sweden, Switzer
10、land 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 CEN national Members. Ref. No.
11、EN 13141-10:2008: EEN 13141-10:2008 (E) 2 Contents Foreword. 3 1 Scope 5 2 Normative references . 5 3 Terms and definitions. 5 4 Symbols and abbreviations . 5 5 Performance testing of aerodynamic and hygro-dynamic characteristics. 6 5.1 Aero and hygro-dynamic performances.6 5.1.1 Principle . 6 5.1.2
12、 Test installation, conditions and uncertainty of measurement 6 5.1.3 Test procedure 8 5.1.4 Analysis of results 14 5.1.5 Test report . 14 5.2 Other tests . 14 5.2.1 Time response test . 14 5.2.2 Performance testing of acoustic characteristics. 15 Bibliography . 16 DIN EN 13141-10:2008-10 Page EN 13
13、141-10:2008 (E) 3 Foreword This document (EN 13141-10:2008) 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
14、 by endorsement, at the latest by November 2008, and conflicting 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 responsibl
15、e for identifying any or all such patent rights. This document 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 the mechanical buildi
16、ng services is shown in Figure 1. According to the CEN/CENELEC Internal 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,
17、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 13141-10:2008-10EN 13141-10:2008 (E) 4 Figure 1 Position of EN 13141-10 in the field of the mechanical
18、 building services DIN EN 13141-10:2008-10 EN 13141-10:2008 (E) 5 1 Scope This European Standard specifies laboratory methods for testing humidity controlled exhaust air terminal devices. This European Standard applies to all controlled devices on indoor humidity, used in mechanical and natural powe
19、red residential ventilation systems. For instance, devices of the following types: humidity controlled devices with a manually adjustable opening; humidity controlled devices with fixed setting; humidity controlled devices self-adjusting on pressure difference. This European Standard describes tests
20、 intended to characterize: aero and hygro-dynamic performance; acoustic characteristics (including noise production of the device; insertion loss of the device; sound insulation); time response. 2 Normative references The following referenced documents are indispensable for the application of this d
21、ocument. 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 13141-2:2004, Ventilation for buildings Perf
22、ormance testing of components/products for residential ventilation - Part 2: Exhaust and supply air terminal devices 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12792:2003, EN 13141-2:2004 and the following apply. 3.1 hysteresis value defined as t
23、he difference of relative humidity, read on the response curve for the same flow, in % RH 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. DIN EN 13141-10:2008-10EN 13141-10:2008 (E) 6 Table
24、1 Symbols and units Term Symbol Unit humidity minimum airflow qv minl. s-1maximum airflow qv maxl. 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 and hygro-dynamic charact
25、eristics 5.1 Aero and hygro-dynamic performances 5.1.1 Principle This test consists of measuring several volume flow rates induced through a device by humidity conditions, under an applied static pressure difference, to define the flow rate/humidity characteristic curve. In the case of manually adju
26、stable devices, a test according to EN 13141-2 shall be carried out at specific opening conditions specified by the manufacturer. Some exhaust air terminal devices are designed to work under both natural and mechanical ventilation systems. In this case the manufacturer may have to specify two operat
27、ional ranges, and the device shall be tested for each of them. 5.1.2 Test installation, conditions and uncertainty of measurement 5.1.2.1 Test installation and conditions The test facility shall include one room controlled both in humidity and temperature, representing indoor conditions. The airflow
28、 test rig may be either in this room or outside but in this case, it shall be verified that all test conditions are still valid, i.e leakages shall be included to achieve the overall uncertainty of measurement that is required. The test installation shall comply with those of EN 13141-2:2004, 4.1.2.
29、1 for indoor rooms. The test facilities shall have a range from 300 Pa to 0 Pa. Special care to limit air velocities around the inlet in the test box shall be taken: air velocities shall be measured at locations specified in Figure 2. The measures shall not exceed 0,10 m.s-1at these points without a
30、irflow through the exhaust vent. DIN EN 13141-10:2008-10 EN 13141-10:2008 (E) 7 dllKey Locations of the measurement points d = 0,04 m l = 0,20 m Figure 2 Locations of measurement points To avoid difficulties in the control of the humidity and temperature controlled room, the volume should be big eno
31、ugh. The air permeability of the test equipment shall be measured with the test specimen sealed, over the same range 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 0,1 l
32、 s-1at 100 Pa. NOTE For low airflow measurements, it can be necessary to introduce some intentional leakage. In this case, 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 sha
33、ll be measured 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) (l.s-1) The temperature shall be measured with an uncertainty lower than 0,5 K. The relative humidity shall be measured w
34、ith an uncertainty lower than 2 % RH. DIN EN 13141-10:2008-10EN 13141-10:2008 (E) 8 5.1.3 Test procedure 5.1.3.1 Choice of tests to be performed For fixed setting devices and manually adjustable, all the specified positions shall be tested with at least the minimum and maximum open positions. For a
35、device or position humidity controlled, the measurements shall be taken (see 5.1.3.2) for at least one pressure difference (chosen by the manufacturer) in the following pressure difference ranges (bands) given in Table 2. For positions without humidity control, the same measurements as for fixed dev
36、ice (according to EN 13141-2) in specific conditions shall be performed. For pressure difference controlled devices, self regulation shall be verified (see 5.1.3.3). For non pressure difference controlled devices, an additional and optional test shall be done according to EN 13141-1 to determine the
37、 flow exponent at the middle point of the response curve to measure the impact of pressure on the aperture: use description in 5.1.3.3. The environmental conditions existing during the tests, such as temperature and barometric pressure, shall be recorded. The volume flow rate qv measshould be direct
38、ly measured or alternatively calculated from the measured value of mass flow rate qm. Table 2 Pressure difference rangesPressure difference, p Permissible deviation during test Pa Pa 10 1 20 1 50 2 80 5 100 5 160 5 The report shall give values of the flow exponent for the corresponding pressure diff
39、erence as shown in Table 3. If the regression law coefficient is lower or equal to 0,95, a unique value of the flow exponent shall be provided. DIN EN 13141-10:2008-10 EN 13141-10:2008 (E) 9 Table 3 Values of the flow exponent for the corresponding pressure difference Pressure difference, p Flow exp
40、onent, Kp (Pa) 10 Kp10 20 Kp20 50 Kp50 80 Kp80 100 Kp100 160 Kp160 The values Kp10 to Kp160 shall be calculated according to the following: qv(p) = qv(p nom) (p / p nom)KpFor humidity controlled extract air without pressure difference controlled device, the following correction shall be applied: mea
41、snomvmeasvppqq= where qv meas= measured value at pmeas, in l. s-1pmeas= test pressure, in Pa pnom= nominal test pressure given by the manufacturer, in Pa With qv = corrected value for the nominal pressure, in l. s-1For humidity controlled extract air with pressure difference controlled device, this
42、correction shall not be applied. 5.1.3.2 Tests of humidity control The characteristic curve airflow vs indoor relative humidity shall be measured at the pressure difference defined by the manufacturer. The range of humidity during the test shall also be defined by the manufacturers declaration. The
43、minimum value of humidity shall be the minimum declared less 20 % RH, so that minp1pmin pRH%20 NOTE 1 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. DIN EN 13141-10:2008-10EN 13141-10:2008 (E) 10 The maximum valu
44、e of humidity shall be the maximum declared plus 20 % RH, so that: RH%20maxp2pmax p+ NOTE 2 If this value is greater than 85 % RH, a maximum value of 85 % can be accepted for test conditions due to the difficulty of realisation. The tests shall be performed with first an increase of humidity from mi
45、nimum 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 three humidity regularly spaced in between minimum and maximum (one in the middle point) and then at maximum for the incr
46、easing cycle. If necessary, more points shall be tested to avoid steps of humidity larger than 10 % RH. Same points down to the minimum shall be measured while decreasing, which induces a minimum of 9 test points. Before measurements, the device shall at least realise such one cycle of humidity. The
47、 parameters are illustrated in Figure 3. Key X humidity Y airflow If p185 % RH then the maximum measurement point may be limited at 85 % RH. Figure 3 Test parameters The humidity declared range pmin,pmax and the declared airflow range qvmin,qvmax under the test pressure difference shall be given by
48、the manufacturer. The repartition of the measurement points shall be equally distributed on the declared range. DIN EN 13141-10:2008-10 EN 13141-10:2008 (E) 11 Key X humidity Y airflow Figure 4 Example of distribution of measurement points The condition p 10 % RH shall be applied: the number of meas
49、urement points shall be chosen to ensure a relative humidity difference lower than 10 % RH between 2 points (see Figure 4). The number of measuring points shall be chosen accordingly if the declared range is wider than 40 %. The nine minimum measurement points shall be detailed as follows: one for qv min, three for the increasing humidity within the range (p min,p max), one for qv max, three for the decreasing humidity within the range (p min,
