I.S. EN ISO 12241:2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
THERMAL INSULATION FOR BUILDING EQUIPMENT AND INDUSTRIAL INSTALLATIONS - CALCULATION RULES
Hardcopy , PDF
03-04-2023
English
01-01-2008
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Definition of symbols
3.3 Subscripts
4 Calculation methods for heat transfer
4.1 Fundamental equations for heat transfer
4.2 Surface temperature
4.3 Prevention of surface condensation
4.4 Determination of total heat flow rate for plane walls,
pipes and spheres
5 Calculation of the temperature change in pipes, vessels and
containers
5.1 Longitudinal temperature change in a pipe
5.2 Temperature change and cooling times in pipes, vessels
and containers
6 Calculation of cooling and freezing times of stationary liquids
6.1 Calculation of the cooling time for a given thickness of
insulation to prevent the freezing of water in a pipe
6.2 Calculation of the freezing time of water in a pipe
7 Determination of the influence of thermal bridges
7.1 General
7.2 Calculation of correction terms for plane surfaces
7.3 Calculation of correction terms for pipes
8 Underground pipelines
8.1 General
8.2 Calculation of heat loss (single line) without channels
8.3 Other cases
Annex A (normative) - Thermal bridges in pipe insulation
Annex B (informative) - Projecting thermal bridges of roughly
constant cross-section
Annex C (informative) - Examples
Bibliography
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