1、July 2009DEUTSCHE NORM English price group 14No 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!$XlW“1537352www
2、.din.deDDIN EN 15665Ventilation for buildings Determining performance criteria for residential ventilation systemsEnglish version of DIN EN 15665:2009-07Lftung von Gebuden Bestimmung von Leistungskriterien fr Lftungssysteme in WohngebudenEnglische Fassung DIN EN 15665:2009-07www.beuth.deDocument com
3、prises 38 pagesDIN EN 15665:2009-07 2 National foreword This standard has been prepared by Technical Committee CEN/TC 156 “Ventilation for buildings” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Heiz- und Raumlufttechnik (Heating
4、 and Ventilation Technology Standards Committee), Technical Committee NA 041-02-51 AA Lftung von Wohnungen. The German national mirror committees voted against the publication of this standard. However, because all other CEN Members voted for the publication of the final draft in the final voting st
5、age, the standard was accepted as an EN. Germany is therefore obliged to adopt this European Standard. The present standard is addressed to the relevant national committees who are responsible for developing standards and guidelines for the design of residential ventilation systems. It is not addres
6、sed to commercial organizations who are involved in the design, construction and operation of residential ventilation systems. In Germany the design of residential ventilation systems is governed by DIN 1946-6 and DIN 18017-3. The requirements of DIN EN 15665 will be taken into consideration in futu
7、re revisions of these standards. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15665March 2009ICS 91.140.30English VersionVentilation for buildings - Determining performance criteria forresidential ventilation systemsVentilation des btiments - Dtermination des critres deperformance pour les syst
8、mes de ventilation rsidentielleLftung von Gebuden - Bestimmung vonLeistungskriterien fr Lftungssysteme in WohngebudenThis European Standard was approved by CEN on 7 February 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
9、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 CEN Management Centre or to any CEN member.This European Standard exists in three official versions (Engl
10、ish, 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, C
11、yprus, 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, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOM
12、IT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15665:2009: EEN 15665:2009 (E) 2 Contents Page Foreword . 3Introductio
13、n 41 Scope 52 Normative references . 53 Terms and definitions . 54 Symbols and units 65 Needs for residential ventilation: main issues 65.1 General . 65.2 General sources of pollutants . 6 5.3 Consequences of this pollution inside a dwelling 75.4 Expectations about ventilation 7 6 General approach 7
14、6.1 Questions, assumptions and way of proceeding 76.2 Requirements for designing a ventilation system . 96.2.1 General . 96.2.2 Assumptions and criteria chosen for ventilation airflow rates values (level 1) . 96.2.3 Assumptions and criteria chosen for a single calculation representing point (level 2
15、) 106.2.4 Assumptions and criteria chosen for a yearly calculation done for design days (level 3)127 Criteria 157.1 General . 157.2 Threshold or limit of the level 157.3 Weighted average concentration 177.4 Average concentration above a threshold with limited compensation . 187.5 Average concentrati
16、on above a limit 197.6 Dose above a given value 207.7 Decay criteria . 217.8 Use of criteria depending on pollutant . 217.8.1 General . 217.8.2 Criteria for humidity 217.8.3 Criteria for specific activities . 227.8.4 Criteria for background pollutant 22Annex A (informative) Example of general requir
17、ements (from Switzerland) 23A.1 General requirements for all ventilation systems . 23A.2 Exhaust ventilation systems 23A.2.1 General . 23A.2.2 Requirements for devices (only for exhaust ventilation systems) 23A.2.3 Mechanical Ventilation (with supply and exhaust fans) . 23A.3 Assumptions and criteri
18、a chosen for ventilation airflow rates values (level 1) . 27A.3.1 Exhaust ventilation systems 27A.3.2 Mechanical ventilation (with supply and exhaust fans) 27Annex B (informative) Example of occupancy scenario 29DIN EN 15665:2009-07 EN 15665:2009 (E) 3 Foreword This document (EN 15665:2009) has been
19、 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 September 2009, and conflicting na
20、tional standards shall be withdrawn at the latest by September 2009. 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. According to the
21、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, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania
22、, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15665:2009-07 EN 15665:2009 (E) 4 Introduction Nowadays most ventilation requirements either in regulations or in standards are based on required airflow
23、 rates. Also, there is relatively limited knowledge about the basis for ventilation flow rates. Airflow rates are however probably the easiest way to express ventilation requirements. Nevertheless it is worthwhile to consider in a more detailed way the influence of the dilution due to air change on
24、human exposure, in order to understand the ventilation requirements expressed in terms of flow rates. Figure 1 explains the process from pollutant to health risk. This European Standard does not deal with health effects, health risks (linked to noise, tobacco), dose and energy impact. This European
25、Standard is not intended to design and/or dimension a ventilation system. This European Standard is intended to support any regulation or standard. This European Standard is intended to give guidance to those with responsibility for producing requirements and standards for residential ventilation sy
26、stems. It is recommended that future revisions of relevant regulations and standards should consider the content of this European Standard. Figure 1 Pollutant process DIN EN 15665:2009-07 EN 15665:2009 (E) 5 1 Scope This European Standard sets out criteria to assess the performance of residential ve
27、ntilation systems (for new, existing and refurbished buildings) which serve single family, multi family and apartment type dwellings throughout the year. This European Standard specifies ways to determine performance criteria to be used for design levels in regulations and/or standards. These criter
28、ia are meant to be applied to, in particular: mechanically ventilated building (mechanical exhaust, mechanical supply or balanced system); natural ventilation with stack effect for passive ducts; hybrid system switching between mechanical and natural modes; windows opening by manual operation for ai
29、ring or summer comfort issues. This European Standard considers aspects of hygiene and indoor air quality. Health risk from exposure to tobacco smoke is excluded from this European Standard. 2 Normative references The following referenced documents are indispensable for the application of this docum
30、ent. 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 15242:2007, Ventilation for buildings Calculatio
31、n methods for the determination of air flow rates in buildings including infiltration 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 background pollutants group of indoor pollutants which are continuous and dif
32、fuse NOTE 1 These pollutants are represented by materials, furnishings and products used in the dwelling. NOTE 2 These pollutants also include those resulting from human occupation such as water vapour and carbon dioxide from respiration. 3.2 specific pollutants group of indoor pollutants which are
33、of short duration, and in specific locations in the dwelling NOTE These pollutants are mainly represented by water vapour, carbon dioxide and odours, whose production is related to specific human activities in the dwelling (such as cooking, washing, bathing). DIN EN 15665:2009-07 EN 15665:2009 (E) 6
34、 3.3 parameter pollutant or marker that is used in the expression of a requirement NOTE 1 More than one parameter may be used at the same time and combined. NOTE 2 Relative humidity, odours, CO2are examples of parameters. 3.4 criteria way (method) to express the required performance NOTE Criteria ca
35、n be, for example, numbers of hours above 70 % RH in living room calculated on a standard week basis, number of minutes to reach 25 % of the initial pollution concentration based on a standard pollutant emission in a toilet, average level of CO2above outside in bedroom on a 10 hours night with two s
36、tandard persons. 3.5 requirement level of required performance NOTE Requirements can be, for example, “maximum of 100 hours above 70 % in living room“, “less than 10 minutes to reach 25 % of initial “, “less than 800 10-6CO2(generally named ppm) as an average“, “minimum of 8 l/s in toilet“, “35 l/s
37、for global ventilation in standard inside/outside conditions“. 4 Symbols and units For the purposes of this document, the symbols and units given in EN 12792:2003 apply. 5 Needs for residential ventilation: main issues 5.1 General There shall be adequate means of ventilation provided for the buildin
38、g and its occupants. 5.2 General sources of pollutants The following sources of pollutants influencing the ventilation in dwelling shall be considered: Outside environment, such as climate, earth (which can provide radon); Human respiration, odours; Human behaviour, such as cooking, bathing, drying
39、machine, cleaning; Emissions of building materials and furniture; Emissions of cleaning material; Combustion appliance. Each of these sources can produce pollutants. DIN EN 15665:2009-07 EN 15665:2009 (E) 7 5.3 Consequences of this pollution inside a dwelling Depending on the pollutant sources given
40、 in 5.2, the following consequences can be observed: a) For the building: risk of condensation, risk of dryness, mould growth, fungis, dust mites, interstitial condensation; b) For human health and comfort: carbon monoxide, CO2level and water vapour, temperature, air velocity, germs, microorganisms,
41、 formaldehydes, VOC (volatile organic compounds), “volatile organic compound, odours, noise from outside. 5.4 Expectations about ventilation Considering the pollutant sources and their consequences, the adequate means of ventilation should be provided for one or more of the following purposes: a) Di
42、lution and/or removal of background pollutants such as substances emitted by furnishings and building materials and cleaning materials used in the building, odours, metabolic CO2and water vapour; b) Dilution and/or removal of specific pollutants from identifiable local sources such as toilet odours,
43、 cooking odours, water vapour from cooking or bathing, combustion products; c) Provision of outdoor air for occupants; d) Provision of control of temperature effects (over heating and draught); e) Provision of air for combustion appliances. All these purposes shall be considered with regard to the h
44、ealth and comfort of the occupants and integrity of the building. NOTE 1 Ventilation is primarily concerned with the first three purposes (a) to c) but it is linked to the last two (d and e). NOTE 2 When providing ventilation, other aspects of performance including thermal comfort, durability, fire
45、safety, noise and energy use should be considered. 6 General approach 6.1 Questions, assumptions and way of proceeding Before designing a ventilation system, the people involved in regulations and/or standards shall answer lots of questions and assumptions that have to be taken into account for calc
46、ulation. The result of this calculation can be expressed by a continuous explicit airflow rate (e.g. mechanical ventilation with constant airflow rate) or an equivalent airflow in terms of air quality according to conventional assumptions applicable in each country (e.g. Technical Approvals). The fo
47、llowing way of proceeding shall be used in order to determine airflow rates (see Figure 2): a) Step 1: verify if there is any applicable regulation (health, fire protection, noise, gas, etc.) in the country that leads to certain limit in airflows; b) Step 2: identify the parameters which are taken i
48、nto account or which are considered as relevant; c) Step 3: at this step of the procedure, take into account the 3 following points: DIN EN 15665:2009-07 EN 15665:2009 (E) 8 1) for each parameter, a detailed description shall be made of the nature, sources, distribution and time dependence; 2) for e
49、ach parameter, the appropriate criteria shall be chosen as described in Clause 7; 3) assumptions for buildings, ventilation systems, outdoor conditions and occupancy patterns shall be described corresponding to the table at the chosen level described in 6.2; d) Step 4: use the appropriate calculation method able to handle the chosen criteria and assumptions; e) Step 5: make requirem
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