EN 14114:2002
(Main)Hygrothermal performance of building equipment and industrial installations - Calculation of water vapour diffusion - Cold pipe insulation systems
Hygrothermal performance of building equipment and industrial installations - Calculation of water vapour diffusion - Cold pipe insulation systems
This standard specifies a method to calculate the density of water vapour flow rate for cold pipes, and the total amount of water absorption over time. This calculation method applies only when the water vapour partial pressure difference is perpendicular to the axis of the pipes and the water vapour partial pressure is constant at all points equidistant from the axis of the pipe.
Wärme- und feuchtetechnisches Verhalten von haus- und betriebstechnischen Anlagen - Berechnung der Wasserdampfdiffusion - Dämmung von Kälteleitungen
Diese Norm beschreibt Verfahren zur Berechnung der Wasserdampf-Diffusionsstromdichte für kälteleitungen und der Gesamtmenge an Wasserabsorption über die Zeit. Dieses Berechnungsverfahren gilt nur, wenn die Wasserdampfteildruckdifferenz senkrecht zur Rohrachse auftritt und der Wasserdampfteildruck an allen Punkten, die von der Rohrachse einen gleichen Abstand haben, konstant ist.
Performance hygrothermique des équipements de bâtiments et installations industrielles - Calcul de la diffusion de vapeur d'eau - Systèmes d'isolation de tuyauteries froides
La présente norme donne une méthode permettant de calculer la densité du flux de vapeur deau dans le cas des tuyauteries froides ainsi que la quantité totale d'eau absorbée en fonction du temps. Cette méthode de calcul ne s'applique que lorsque la différence de pression partielle de vapeur d'eau est perpendiculaire à l'axe du tuyau et que la pression partielle de vapeur d'eau est constante en tout point équidistant de l'axe du tuyau.
Higrotermalno obnašanje opreme stavb in industrijskih inštalacij - Izračun difuzije vodne pare - Sistemi za izoliranje hladnih cevi
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Wärme- und feuchtetechnisches Verhalten von haus- und betriebstechnischen Anlagen - Berechnung der Wasserdampfdiffusion - Dämmung von KälteleitungenPerformance hygrothermique des équipements de bâtiments et installations industrielles - Calcul de la diffusion de vapeur d'eau - Systemes d'isolation de tuyauteries froidesHygrothermal performance of building equipment and industrial installations - Calculation of water vapour diffusion - Cold pipe insulation systems91.120.10Toplotna izolacija stavbThermal insulationICS:Ta slovenski standard je istoveten z:EN 14114:2002SIST EN 14114:2002en01-november-2002SIST EN 14114:2002SLOVENSKI
STANDARD
SIST EN 14114:2002
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14114March 2002ICS 91.120.10English versionHygrothermal performance of building equipment and industrialinstallations - Calculation of water vapour diffusion - Cold pipeinsulation systemsPerformance hygrothermique des équipements debâtiments et installations industrielles - Calcul de ladiffusion de vapeur d'eau - Systèmes d'isolation detuyauteries froidesWärme- und feuchtetechnisches Verhalten von haus- undbetriebstechnischen Anlagen - Berechnung derWasserdampfdiffusion - Dämmung von KälteleitungenThis European Standard was approved by CEN on 28 June 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this 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 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14114:2002 ESIST EN 14114:2002
EN 14114:2002 (E)2ContentsPageForeword3Introduction41 Scope42 Normative references53 Terms, definitions, symbols and units54 Calculation equations75 Boundary conditions96 Calculation procedure10Annex A (informative)
Examples14Annex B (informative)
Experimental determination of the evaporation rate from the surfaceof a wet wick fabric16Bibliography18SIST EN 14114:2002
EN 14114:2002 (E)3ForewordThis document (EN 10264-1:2002) has been prepared by Technical Committee CEN/TC 89"Thermal performance of buildings and building components"", the secretariat of which isheld by SIS.This European Standard shall be given the status of a national standard, either by publicationof an identical text or by endorsement, at the latest by September 2002, and conflictingnational standards shall be withdrawn at the latest by September 2002.The enquiry version was designated prEN ISO 15758. However, as a result of the enquiry,ISO decided to decouple from the Vienna Agreement; CEN and ISO will proceed topublication on their own.This standard is one of a series of standards which specify calculation methods for the designand evaluation of the thermal and moisture related performance properties of buildings andbuilding components.The Annexes A and B are informative.According to the CEN/CENELEC Internal Regulations, the national standards organizationsof the following countries are bound to implement this European Standard: Austria, Belgium,Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and theUnited Kingdom.SIST EN 14114:2002
EN 14114:2002 (E)4IntroductionIf the thermal insulation of a cold pipe system is not completely water vapour tight, there willbe a flow of water vapour from the warm environment to the surface of the pipe, whenever thetemperature of the surface of the cold pipe is below the dew point of the ambient air.
Thisflow of water vapour leads to an interstitial condensation in the insulation layer and/or dewformation on the surface of the pipe itself.
Interstitial condensation may cause the insulationmaterial to deteriorate and dew formation on the surface of a metal pipe may cause corrosionover time.
If the temperature is below 0 C ice will be formed and the methods of thisstandard will not apply.In periods where the dew point of the ambient air is higher than the tempe
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