1、February 2011 Translation by DIN-Sprachendienst.English price group 17No part of this translation 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).I
2、CS 27.220; 91.120.10!$my.“1748611www.din.deDDIN EN ISO 23993Thermal insulation products for building equipment and industrialinstallations Determination of design thermal conductivity (ISO 23993:2008,Corrected version 2009-10-01)English translation of DIN EN ISO 23993:2011-02Wrmedmmung an betriebste
3、chnischen Anlagen in der Industrie und der technischenGebudeausrstung Bestimmung der Betriebswrmeleitfhigkeit (ISO 23993:2008, korrigierte Fassung2009-10-01)Englische bersetzung von DIN EN ISO 23993:2011-02Produits isolants thermiques pour lquipement du btiment et les installationsindustrielles Dter
4、mination de la conductivit thermique utile (ISO 23993:2008, Version corrige2009-10-01)Traduction anglaise de DIN EN ISO 23993:2011-02SupersedesDIN EN ISO 23993:2008-05www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.4002.11 DIN EN I
5、SO 23993:2011-02 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 163 “Thermal performance and energy use in the built environment”, Subcommittee SC 2 “Calculation methods” in collaboration with Technical Committee CEN/TC 89 “Th
6、ermal performance of buildings and building components” (Secretariat: SIS, Sweden). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-56-10 AA Dmmarbeiten an tech-nischen Anlagen. Th
7、e DIN Standards corresponding to the European and International Standards referred to in this document are as follows: ISO 7345 DIN EN ISO 7345 ISO 8497 DIN EN ISO 8497 ISO 9229 DIN EN ISO 9229 ISO 10456 DIN EN ISO 10456 ISO 12572 DIN EN ISO 12572 ISO 13787 DIN EN ISO 13787 ISO 15758 DIN EN 14114 Th
8、is standard is part of a series of standards specifying methods for the determination and evaluation of the thermal performance of building equipment and industrial installations. Amendments This standard differs from DIN EN 23993:2008-05 as follows: a) the table in Clause 4 “Symbols” has been exten
9、ded; b) a new Equation (6) has been included in Subclause 7.9.2.2 “Spacers for sheet metal jackets for walls”; c) Annex B “Examples of determination of the design thermal conductivity” has been restructured. Previous editions DIN EN 23993: 2008-05 DIN EN ISO 23993:2011-02 3 National Annex NA (inform
10、ative) Bibliography DIN EN 12088, Thermal insulating products for building applications Determination of long term water absorption by diffusion DIN EN 14114, Hygrothermal performance of building equipment and industrial installations Calculation of water vapour diffusion Cold pipe insulation system
11、s DIN EN ISO 7345, Thermal insulation Physical quantities and definitions DIN EN ISO 8497, Thermal insulation Determination of steady-state thermal transmission properties of thermal insulation for circular pipes DIN EN ISO 9229, Thermal insulation Vocabulary DIN EN ISO 10456, Building materials and
12、 products Hygrothermal properties Tabulated design values and procedures for determining declared and design thermal values DIN EN ISO 12572, Hygrothermal performance of building materials and products Determination of water vapour transmission properties DIN EN ISO 13787, Thermal insulation product
13、s for building equipment and industrial installations Determination of declared thermal conductivity DIN EN ISO 23993:2011-02 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 23993 November 2010 ICS 27.220; 91.120.10; 91.100.60 Supersedes EN ISO 23993:2008E
14、nglish Version Thermal insulation products for building equipment and industrial installations - Determination of design thermal conductivity (ISO 23993:2008, Corrected version 2009-10-01) Produits isolants thermiques pour lquipement du btiment et les installations industrielles - Dtermination de la
15、 conductivit thermique utile (ISO 23993:2008, Version corrige 2009-10-01) Wrmedmmung an betriebstechnischen Anlagen in der Industrie und der technischen Gebudeausrstung - Bestimmung der Betriebswrmeleitfhigkeit (ISO 23993:2008, korrigierte Fassung 2009-10-01) This European Standard was approved by C
16、EN on 11 October 2010. CEN members are bound to comply 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 standar
17、ds may be obtained on application to the CEN-CENELEC Management 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 noti
18、fied to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuani
19、a, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN
20、All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 23993:2010: EContents Page Foreword3 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Symbols 7 5 Determination of declared thermal conductivity7 6 Dete
21、rmination of the design value of thermal conductivity 8 7 Conversion of available data8 7.1 General8 7.2 Conversion factor for temperature difference 9 7.3 Conversion factor for moisture9 7.4 Conversion factor for ageing10 7.5 Conversion factor for compression.10 7.6 Conversion factor for convection
22、 10 7.7 Conversion factor for thickness effect10 7.8 Conversion factor for regular joints 10 7.9 Additional thermal conductivity for regularly insulation-related thermal bridges, e.g. spacers 11 Annex A (normative) Conversion factors .13 Annex B (informative) Examples of determination of the design
23、thermal conductivity25 Annex C (informative) Approximate values of conversion factors 28 Bibliography 36 2 DIN EN ISO 23993:2011-02 EN ISO 23993:2010 (E) Foreword The text of ISO 23993:2008, Corrected version 2009-10-01 has been prepared by Technical Committee ISO/TC 163 “Thermal performance and ene
24、rgy use in the built environment” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 23993:2010 by Technical Committee CEN/TC 89 “Thermal performance of buildings and building components” the secretariat of which is held by SIS. This European Standard shall
25、 be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2011, and conflicting national standards shall be withdrawn at the latest by May 2011. Attention is drawn to the possibility that some of the elements of this document may
26、be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 23993:2008. This corrected version of ISO 23993:2008 incorporates the following corrections plus other minor editorial modifications. Claus
27、e 4: The following two rows have been added to the table: N number of spacers per square metre sq thermal conductivity per spacer per square metre W/(m.K) Clause 6: Equations (1) and (2) have been re-inserted: dF (1) ma cdjCF F F FF FFF (2) 7.9.2.2: The calculations have been modified as follows (i.
28、e. with the substitution of sq, the thermal conductivity per spacer per square metre, for i.e., with the deletion of “/spacers/m2” from the units): Spacers of steel in the form of a flat bar 30 mm 3 mm sq 0,003 5 W/(mK) 40 mm 4 mm sq 0,006 0 W/(mK) 50 mm 5 mm sq 0,008 5 W/(mK) A new Equation (6) has
29、 been added to define the relationship between and sqand the original Equation (6) renumbered to Equation (7). 7.9.3: The units “W(mK)” have been corrected to “W/(mK)”. A.4.1 (twice) and A.4.2 (twice): The term “specific” has been added to the definition of W, “specific airflow resistance.” 3 DIN EN
30、 ISO 23993:2011-02 EN ISO 23993:2010 (E) Annex B: The additional subtitles and introductory text, “B.1 Insulation materials” and “B.2 Conditions” have been added. The line “Determination of the conversion factors and ” has been restyled as B.3 and introductory text added. Table C.1: The vertical lin
31、e separating the subheadings “calcium-magnesium silicate fibre” and “calcium silicate” and “microporous insulants” each from the subheading “Insulation” has been moved one column to the left, i.e. from between the pictures for the two pipes to between the column “Application.” and the picture of the
32、 horizontal pipe (consistent with other similar rows such as that for “mineral wool”). Table C.1 (four times): The term “airflow resistance” has been replaced with the term “airflow resistivity”. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
33、 countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
34、 Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 23993:2008, Corrected version 2009-10-01 has been approved by CEN as a EN ISO 23993:2010 without any modification. 4 DIN EN ISO 23993:2011-02 EN ISO 23993:2010 (E) Introduction The establishment of desig
35、n values for thermal conductivity for the calculation of the thermal performance of insulation systems for building equipment and industrial installations requires a consideration of various possible influences affecting the thermal properties of the insulation products employed due to the operation
36、al conditions of any individual insulation system. Among these influences could be: the non-linearity of the thermal conductivity curve over the temperature range in which the insulant may be employed; the thickness effect; the effect of moisture in the insulant; ageing effects, beyond those already
37、 incorporated in the declared value; special installation effects such as single- or multi-layered installation. In this International Standard, the conversion factors F, that need to be used in a variety of applications for a variety of insulation products, are given and the principles and general
38、equations as well as some guidance for the establishment of design values for the calculation of the thermal performance of insulation systems are described. The conversion factors valid for commonly employed insulation products are given in annexes. They are well established in some cases and for s
39、ome materials. Where experience is lacking and conversion factors cannot be established accurately, they are given in the form of an “educated estimate” so that the calculation result will be on the safe side, i.e. the calculated heat transfer will be greater than that actually occurring when the ca
40、lculation has obeyed the rules of this International Standard. 5 DIN EN ISO 23993:2011-02 EN ISO 23993:2010 (E) 1 Scope This International Standard gives methods to calculate design thermal conductivities from declared thermal conductivities for the calculation of the thermal performance of building
41、 equipment and industrial installations. These methods are valid for operating temperatures from 200 C to +800 C. The conversion factors, established for the different influences, are valid for the temperature ranges indicated in the relevant clauses or annexes. 2 Normative references The following
42、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. ISO 7345, Thermal insulation Physical quantities and definition
43、s ISO 8497, Thermal insulation Determination of steady-state thermal transmission properties of thermal insulation for circular pipes ISO 9053, Acoustics Material for acoustical applications Determination of airflow resistance ISO 9229, Thermal insulation Vocabulary ISO 13787, Thermal insulation pro
44、ducts for building equipment and industrial installations Determination of declared thermal conductivity 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 7345, ISO 9229 and the following apply. 3.1 declared thermal conductivity value of the thermal co
45、nductivity of a material or product used for building equipment and industrial installations: based on measured data at reference conditions of temperature and humidity; given as a limit value, in accordance with the determination method in ISO 13787; corresponding to a reasonable expected service l
46、ifetime under normal conditions 6 DIN EN ISO 23993:2011-02 EN ISO 23993:2010 (E) 3.2 design thermal conductivity value of thermal conductivity of an insulation material or product under specific external and internal conditions which can be considered as typical of the performance of that material o
47、r product when incorporated in a building equipment or industrial installation 4 Symbols Symbol Quantity Unit aCcompressibility coefficient m3/(kg.K) D internal diameter of the layer m d layer thickness m dgsystem thickness including air gap m F overall conversion factor for thermal conductivity Faa
48、geing conversion factor FCcompression conversion factor Fcconvection conversion factor Fdthickness conversion factor fdthickness conversion coefficient Fjjoint factor Fmmoisture conversion factor fmoisture conversion coefficient volume by volume m3/m3Ftemperature difference conversion factor N numbe
49、r of spacers per square metre u moisture content mass by mass kg/kg Celsius temperature C ddeclared thermal conductivity W/(m.K) design thermal conductivity W/(m.K) integrated thermal conductivity W/(m.K) additional thermal conductivity due to thermal bridges, such as spacers, which are regular parts of the insulation W/(m.K) sqthermal conductivity per spacer per square metre W/(m.K) apparent density kg/m3
