EN ISO 23993:2008
(Main)Thermal insulation products for building equipment and industrial installations - Determination of design thermal conductivity (ISO 23993:2008)
Thermal insulation products for building equipment and industrial installations - Determination of design thermal conductivity (ISO 23993:2008)
ISO 23993:2008 gives methods to calculate design thermal conductivities from declared thermal conductivities for the calculation of the thermal performance of building 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.
Wärmedämmung an betriebstechnischen Anlagen in der Industrie und der technischen Gebäudeausrüstung - Bestimmung der Betriebswärmeleitfähigkeit (ISO 23993:2008)
Diese Internationale Norm legt Verfahren zur Bestimmung von Betriebswärmeleitfähigkeiten aus Nennwerten der Wärmeleitfähigkeit für die Berechnung des wärmetechnischen Verhaltens von betriebstechnischen Anlagen fest.
Diese Verfahren gelten für Betriebstemperaturen von -200 °C bis -800 °C.
Die für die verschiedenen Einflüsse festgelegten Umrechnungsfaktoren gelten für die in den entsprechenden Abschnitten oder Anhängen angegebenen Temperatur¬bereiche.
Produits isolants thermiques pour l'équipements du bâtiment et les installations industrielles - Détermination de la conductivité thermique utile (ISO 23993:2008)
L'ISO 23993:2008 indique des m�thodes de calcul de la conductivit� thermique utile � partir de la conductivit� thermique d�clar�e pour le calcul de la performance �nerg�tique des �quipements de b�timents et des installations industrielles.
Ces m�thodes s'appliquent pour des temp�ratures de service comprises entre -200 �C et +800 �C.
Les facteurs de conversion, d�termin�s pour les diff�rentes influences, sont valables pour les plages de temp�rature indiqu�es dans les articles ou les annexes correspondants.
Toplotnoizolacijski proizvodi za opremo stavb in industrijske inštalacije - Določevanje projektne toplotne prevodnosti (ISO 23993:2008)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2008
7RSORWQRL]RODFLMVNLSURL]YRGL]DRSUHPRVWDYELQLQGXVWULMVNHLQãWDODFLMH
'RORþHYDQMHSURMHNWQHWRSORWQHSUHYRGQRVWL ,62
Thermal insulation products for building equipment and industrial installations -
Determination of design thermal conductivity (ISO 23993:2008)
Wärmedämmung an betriebstechnischen Anlagen in der Industrie und der technischen
Gebäudeausrichtung - Bestimmung der Betriebswärmeleitfähigkeit (ISO23993:2008)
Produits d'isolation thermique pour les équipements de bâtiment et des installations
industrielles - Détermination de la conception de la conductivité thermique (ISO
23993:2008)
Ta slovenski standard je istoveten z: EN ISO 23993:2008
ICS:
27.220 Rekuperacija toplote. Heat recovery. Thermal
Toplotna izolacija insulation
91.100.60 0DWHULDOL]DWRSORWQRLQ Thermal and sound insulating
]YRþQRL]RODFLMR materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 23993
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2008
ICS 91.120.10; 27.220
English Version
Thermal insulation products for building equipment and industrial
installations - Determination of design thermal conductivity (ISO
23993:2008)
Produits isolants thermiques pour l'équipements du Wärmedämmung an betriebstechnischen Anlagen in der
bâtiment et les installations industrielles - Détermination de Industrie und der technischen Gebäudeausrichtung -
la conductivité thermique utile (ISO 23993:2008) Bestimmung der Betriebswärmeleitfähigkeit (ISO
23993:2008)
This European Standard was approved by CEN on 3 January 2008.
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
standards may be obtained on application to the CEN 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 notified to the CEN Management Centre has the same status as the
official 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, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 23993:2008: E
worldwide for CEN national Members.
Contents Page
Foreword.3
Foreword
This document (EN ISO 23993:2008) has been prepared by Technical Committee CEN/TC 89 "Thermal
performance of buildings and building components", the secretariat of which is held by SIS, in collaboration
with Technical Committee ISO/TC 163 "Thermal performance and energy use in the built environment".
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 August 2008, and conflicting national standards shall be withdrawn at
the latest by August 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.
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, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 23993:2008 has been approved by CEN as a EN ISO 23993:2008 without any modification.
INTERNATIONAL ISO
STANDARD 23993
First edition
2008-02-01
Thermal insulation products for building
equipment and industrial installations —
Determination of design thermal
conductivity
Produits isolants thermiques pour l'équipement du bâtiment et les
installations industrielles — Détermination de la conductivité thermique
utile
Reference number
ISO 23993:2008(E)
©
ISO 2008
ISO 23993:2008(E)
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ii © ISO 2008 – All rights reserved
ISO 23993:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Symbols . 2
5 Determination of declared thermal conductivity . 2
6 Determination of the design value of thermal conductivity . 3
7 Conversion of available data . 3
7.1 General. 3
7.2 Conversion factor for temperature difference . 3
7.3 Conversion factor for moisture . 4
7.4 Conversion factor for ageing. 5
7.5 Conversion factor for compression. 5
7.6 Conversion factor for convection . 5
7.7 Conversion factor for thickness effect. 5
7.8 Conversion factor for regular joints . 5
7.9 Additional thermal conductivity for regularly insulation-related thermal bridges,
e.g. spacers . 6
Annex A (normative) Conversion factors . 7
Annex B (informative) Examples of determination of the design thermal conductivity. 19
Annex C (informative) Approximate values of conversion factors . 22
Bibliography . 30
ISO 23993:2008(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 23993 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 89, Thermal performance of buildings and building components, in collaboration with ISO Technical
Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 2,
Calculation methods, in accordance with the Agreement on technical cooperation between ISO and CEN
(Vienna Agreement).
This International Standard is one of a series of standards on methods for the design and evaluation of the
thermal performance of building equipment and industrial installations.
iv © ISO 2008 – All rights reserved
ISO 23993:2008(E)
Introduction
The establishment of design 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 operational
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 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 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 some 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 calculation has obeyed the rules of this International Standard.
INTERNATIONAL STANDARD ISO 23993:2008(E)
Thermal insulation products for building equipment and
industrial installations — Determination of design thermal
conductivity
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 equipment and industrial installations.
These methods are valid for operating temperatures from −200 °C to +800 °C.
...
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