Free-standing chimneys - Part 1: General requirements

This document deals with the general requirements and the basic performance criteria for the design and construction of all types of structurally independent chimneys including their liners.
This document also applies to chimneys connected to buildings when at least one of the following criteria is met:
-   the distance between the lateral guides is more than 4 m;
-   the free-standing height above the uppermost structural support attachment is more than 3 m;
-   the free-standing height above the uppermost structural support attachment for chimneys with rectangular cross section is more than five times the smallest external dimension.
Structurally independent chimneys take into account in their design: operational conditions and other actions to verify mechanical resistance and stability and safety in use. Detailed requirements relating to specialized designs are given in the standards for concrete chimneys, steel chimneys and their liners, as well as masts construction with satellite components.
In other parts of the EN 13084 series, rules will be given where system chimney products in accordance with EN 1443 (and the relating product standards) are used in structurally independent chimneys.
This document does not cover the design and construction of connecting flue pipes.

Freistehende Schornsteine - Teil 1: Allgemeine Anforderungen

Dieses Dokument behandelt die allgemeinen Anforderungen und die Grundkriterien für Entwurf, Berechnung und Konstruktion aller Arten von freistehenden Abgasanlagen, einschließlich deren Innenrohre.
Dieses Dokument ist auch anwendbar auf mit Gebäuden verbundene Schornsteine, wenn mindestens eines der folgenden Kriterien erfüllt wird:
-   der Abstand zwischen den seitlichen Führungen ist größer als 4 m;
-   die freistehende Höhe über der obersten statisch wirksamen Abstützung ist größer als 3 m;
-   die freistehende Höhe über der obersten statisch wirksamen Abstützung bei Schornsteinen mit einem rechtwinkligen Querschnitt beträgt mehr als das Fünffache des kleinsten Außenmaßes.
Bei der Bemessung von freistehenden Abgasanlagen werden die Betriebsbedingungen und sonstige Einwirkungen berücksichtigt, um die mechanische Festigkeit, Standsicherheit und Nutzungssicherheit nachzuweisen. Detaillierte Anforderungen bezüglich der einzelnen Konstruktionsarten werden in den Normen für Betonschornsteine, Stahlschornsteine und deren Innenrohre sowie Tragmastkonstruktionen mit angehängten Abgasanlagen gegeben.
Regeln für die Verwendung von System-Abgasanlagenprodukten nach EN 1443 (und der damit verbundenen Produktnormen) in freistehenden Abgasanlagen werden in anderen Teilen von EN 13084 angegeben.
Dieses Dokument ist nicht anwendbar auf die Bemessung und Konstruktion von Verbindungsstücken.

Cheminées autoportantes - Partie 1 : Exigences générales

Le présent document traite des exigences générales et des critères de performances fondamentaux concernant la conception et la réalisation de tous les types de cheminées autoportantes, y compris leur conduit intérieur.
Le présent document s’applique également aux cheminées attachées aux bâtiments lorsqu’au moins l’un des critères suivants est respecté :
-   la distance entre les guides latéraux est supérieure à 4 m ;
-   la hauteur autoportante au-dessus de la fixation la plus haute des supports à la structure est supérieure à 3 m ;
-   la hauteur libre au-dessus de la fixation la plus haute des supports à la structure pour les conduits de fumée avec section rectangulaire est supérieure à cinq fois la plus petite dimension extérieure.
La conception des cheminées autoportantes tient compte de ce qui suit : les conditions d’opération et d’autres effets pour vérifier la résistance mécanique, la stabilité et la sécurité d’utilisation. Des exigences détaillées relatives aux conceptions particulières sont fournies dans les normes pour cheminées en béton, cheminées en acier et conduits intérieurs, ainsi que pour conception des mâts intégrant des conduits systèmes métalliques.
D’autres parties de la série de normes EN 13084 énoncent des règles selon lesquelles des produits de conduits de fumée conformément à l’EN 1443 (et aux normes de produits associées) sont utilisés dans des cheminées autoportantes.
Le présent document ne couvre pas la conception et la construction des conduits de raccordement.

Prostostoječi dimniki - 1. del: Splošne zahteve

General Information

Status
Published
Public Enquiry End Date
03-Oct-2023
Publication Date
15-Jan-2025
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
16-Jan-2025
Due Date
23-Mar-2025
Completion Date
16-Jan-2025

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SLOVENSKI STANDARD
01-marec-2025
Prostostoječi dimniki - 1. del: Splošne zahteve
Free-standing chimneys - Part 1: General requirements
Freistehende Schornsteine - Teil 1: Allgemeine Anforderungen
Cheminées autoportantes - Partie 1 : Exigences générales
Ta slovenski standard je istoveten z: EN 13084-1:2025
ICS:
91.060.40 Dimniki, jaški, kanali Chimneys, shafts, ducts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13084-1
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2025
EUROPÄISCHE NORM
ICS 91.060.40 Supersedes EN 13084-1:2007
English Version
Free-standing chimneys - Part 1: General requirements
Cheminées autoportantes - Partie 1 : Exigences Freistehende Schornsteine - Teil 1: Allgemeine
générales Anforderungen
This European Standard was approved by CEN on 25 November 2024.

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-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 notified 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, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13084-1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
3.1 General terms . 7
3.2 Terms for chimney parts . 8
3.3 Terms for operation . 9
4 General requirements .10
4.1 Materials.10
4.2 Flue gas considerations .10
4.2.1 General .10
4.2.2 Design parameters .11
4.2.3 Heat flow calculations .11
4.2.4 Flow calculations .14
4.2.5 Chemical attack .14
4.3 Environmental aspects .17
4.3.1 Pollutants dispersion.17
4.3.2 Noise .17
4.3.3 Temperature .17
4.3.4 Fire .17
4.3.5 Gas tightness .17
4.4 Connecting flue pipe.18
4.5 Insulation .18
4.6 Ventilation .19
4.7 Protective coatings .19
4.8 Foundation .20
4.9 Accessories .20
4.9.1 Access .20
4.9.2 Lightning protection .21
4.9.3 Aircraft warning system .21
4.9.4 Additional accessories .21
5 Performance requirements: Structural design .22
5.1 Basic design principles .22
5.2 Actions.23
5.2.1 General .23
5.2.2 Permanent actions .23
5.2.3 Variable actions .23
5.2.4 Accidental actions .25
5.3 Imperfections .25
5.4 Foundation .26
5.5 Liner .26
6 Site activities .26
7 Lifetime management, monitoring, inspection, maintenance, cleaning, repair and
remedial work including the reporting; operations and actions required . 26
8 Instrumentation . 26
Annex A (normative) Gas flow calculation . 28
A.1 Principal features of the method of calculation . 28
A.2 Parameters related to construction type . 28
A.2.1 Roughness . 28
A.2.2 Thermal resistance . 28
A.3 Basic values for the calculation . 29
A.3.1 Air temperature . 29
A.3.2 Outside air pressure . 29
A.3.3 Flue gas . 29
A.3.4 Gas constant . 30
A.3.5 Density of outside air . 31
A.3.6 Specific heat capacity . 31
A.3.7 Correction factor for temperature . 31
A.3.8 Flow safety coefficient . 32
A.4 Determination of temperatures . 32
A.4.1 Flue gas temperatures . 32
A.4.2 Coefficient of cooling . 32
A.4.3 Heat transmission coefficient . 33
A.4.4 Internal heat transfer coefficient . 33
A.5 Density of flue gas . 35
A.6 Flue gas velocity . 35
A.7 Pressure at entry of flue gas into chimney . 35
A.7.1 Calculation of pressure . 35
A.7.2 Theoretical draught available due to chimney effect . 36
A.7.3 Pressure resistance of the flue gas carrying tube . 36
A.7.4 Flue friction coefficient . 36
A.7.5 Individual resistance coefficient . 37
A.7.6 Change in pressure due to change of velocity . 37
A.7.7 Pressure caused by sudden interruption of the flue gas stream (Implosion) . 37
A.8 Minimum velocity . 38
Annex B (informative) Calculation method for combined flue gases with different
temperatures. 43
Bibliography . 46
European foreword
This document (EN 13084-1:2025) has been prepared by Technical Committee CEN/TC 297 “Free-
standing industrial chimneys”, the secretariat of which is held by AFNOR.
This document supersedes EN 13084-1:2007.
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 July 2025, and conflicting national standards shall be
withdrawn at the latest by July 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN
...

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