Hygrothermal performance of building equipment and industrial installations. Calculation of water vapour diffusion. Cold pipe insulation systems

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-05-2014

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Calculation formulae
5 Boundary conditions
6 Calculation procedure
Annex A (informative) - Examples
Annex B (informative) - System with capacity for
        drying and experimental determination of
        evaporation rate from surface of wet wick
        fabric
Bibliography

Provides a method for calculating the density of the water vapour flow rate in cold pipe insulation systems, and the total amount of water diffused into the insulation over time.

This International Standard specifies a method for calculating the density of the water vapour flow rate in cold pipe insulation systems, and the total amount of water diffused into the insulation over time. The calculation method presupposes that water vapour can only migrate into the insulation system by diffusion, with no contribution from airflow. It also assumes the use of homogeneous, isotropic insulation materials so that the water vapour partial pressure is constant at all points equidistant from the axis of the pipe.

This International Standard is applicable when the temperature of the medium in the pipe is above 0°C. It applies to pipes inside buildings as well as in the open air.

Committee	B/540
DevelopmentNote	Supersedes BS EN 14114 & 12/30242979 DC. (05/2014)
DocumentType	Standard
Pages	26
PublisherName	British Standards Institution
Status	Current
Supersedes	12/30242979 DC : DRAFT JULY 2012 BS EN 14114:2002

Standards	Relationship
EN ISO 15758:2014	Identical
ISO 15758:2014	Identical

ISO 13788:2012	Hygrothermal performance of building components and building elements — Internal surface temperature to avoid critical surface humidity and interstitial condensation — Calculation methods
ISO 9346:2007	Hygrothermal performance of buildings and building materials — Physical quantities for mass transfer — Vocabulary
DIN 4140:2014-04	Insulation work on industrial installations and building equipment - Execution of thermal and cold insulations
ISO 12572:2016	Hygrothermal performance of building materials and products Determination of water vapour transmission properties Cup method
ISO 12241:2008	Thermal insulation for building equipment and industrial installations Calculation rules
AGI Q 112 : 1980

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BS EN ISO 15758:2014

Current

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory

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