CEN/TC 297 - Free-standing industrial chimneys

This document covers the general requirements and the basic criteria for lifetime management of all kinds of free-standing chimneys, comprising monitoring, inspection, maintenance, repair, reporting, and necessary actions and procedures. This document applies to any windshield, single stack, tower, mast and liner covered by the EN 13084 series.
The Lifetime management considers the original structural and operating design of the structurally independent chimneys under operational conditions and other actions to verify that mechanical resistance and stability and safety in use are continued at the designed for level as expected and/or adapted to changes in the operational requirements of the structure and/or its environment.
NOTE   In other parts of the EN 13084 series, rules will be given where chimney products in accordance with EN 1443 (and the relating product standards) can be used in structurally independent chimneys.

This document deals with special requirements and performance criteria for the design of lining systems made of steel for free standing chimneys. It specifies the requirements for cylindrical steel liners as stated in EN 13084 1.
This document covers the design of the following three basic types of liners located in a load bearing structure:
a)   base supported liner;
b)   sectional liner;
c)   top hung liner.
Additionally this document also applies to single wall chimneys whose surface is in contact with flue gases.
Liners built from prefabricated metal chimneys in accordance with EN 1856-1 and EN 1856-2 are installed as base supported liners with additional supports and guides as defined in this document.

This European Standard deals with steel products for single wall steel chimneys and liners which are produced either in series or as single items. It is a product standard which specifies the performance requirements of cylindrical steel fabrications for use in single wall steel chimneys and steel liners for free-standing chimneys used to convey the flue gas to the outside atmosphere. It also specifies the requirements for insulation and cladding being part of the single wall steel chimney and liner. It provides for the evaluation of conformity of single wall steel chimneys and liners to this European Standard.

This European Standard specifies particular requirements and performance criteria for the design and construction of cast-in-situ concrete chimneys as well as prefabricated concrete chimneys. It identifies requirements to ensure the mechanical resistance and stability of concrete chimneys in accordance with the general requirements given in EN 13084-1.
As for chimneys attached to buildings the criteria given in Clause 1 of EN 13084-1:2000 apply.
Unless otherwise stated in the following clauses the basic standard for the design of concrete structures, EN 1992 1 1, applies.

This European Standard deals with the general requirements and the basic performance criteria for the design and construction of all types of free standing chimneys including their liners. A chimney may also be considered as free standing, if it is guyed or laterally supported or if it stands on another structure.
Chimneys attached to buildings should be considered as free-standing chimneys in accordance with this European Standard when at least one of the following criteria is met:
   the distance between the lateral supports is more than 4 m;
   the free-standing height above the uppermost structural attachment is more than 3 m;
   the free-standing height above the uppermost structural attachment for chimneys with rectangular cross section is more than five times the smallest external dimension;
   the horizontal distance between the building and the outer surface of the chimney is more than 1 m.
Chimneys attached to free-standing masts are considered as free-standing chimneys.
The structural design of free-standing chimneys takes into account 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 liners.
NOTE   In other parts of the series EN 13084 rules will be given where chimney products in accordance with EN 1443
(and the relating product standards) may be used in free-standing chimneys.

This European Standard specifies performance requirements and test methods for clay/ceramic bricks and factory made mortars used for the construction of brick liners in free-standing industrial chimneys. The structural design of the brick liners is specified in EN 13084-4.
The marking requirement for bricks and mortar covered by this European Standard is included. This European Standard provides for the evaluation of conformity of material for brick liners to this European Standard.

2020-03-05: WI transferred from WG 4 (disbanded by CEN/BT C167/2019)
TC - Various modifications throughout text

2020-03-05: WI transferred from WG 4 (disbanded by CEN/BT C167/2019)
CMC - Modification to Contents and Foreword (Editorial error)
TC - Various modifications throughout text

This European Standard specifies special requirements and performance criteria for the design and construction of lining systems made of brickwork for free-standing industrial chimneys. Current European practice favours sectional liners and the statements of the standard are mainly devoted to such solutions but are also largely applicable to base supported independent and stayed liners. The differences in the design and construction of the two last types are covered by Annex A. This European Standard identifies requirements to ensure mechanical resistance and stability of liners in accordance with the general requirements given in EN 13084-1.
Lining systems comprise some or all of the following:
chimney liner including duct entry;
insulation;
liner support;
space between liner and concrete windshield.
Gas flow calculations to determine liner sizes are covered by EN 13084-1.

This document describes the method of specifying the design criteria and the installation method for a free-standing mast with satellite pipes using welded pipes in accordance with prEN 13084-7 or using prefabricated metal chimney elements in accordance with Table D.1 of EN 1856-1:2003.

This document deals with special requirements and performance criteria for the design of lining systems made of steel for free standing chimneys. It specifies the requirements for cylindrical steel liners as stated in EN 13084 1.
This document covers the design of the following three basic types of liners located in a load bearing structure:
a)   base supported liner;
b)   sectional liner;
c)   top hung liner.
Additionally this document applies to single wall chimneys regarding their contact with flue gases.
For simplicity, these various designs will generally be referred to herein as "liners".
The mechanical requirement is not part of this document, for information see prEN 1993 3.
NOTE   Liners built from prefabricated metal chimneys in accordance with EN 1856 1:2009 and
EN 1856 2:2009 are installed as base supported liners with additional supports and guides as defined in this document.

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.

This European Standard deals with special requirements and performance criteria for the design of lining systems made of steel for free standing chimneys. It specifies the requirements for cylindrical steel liners as stated in
EN 13084-1.
This European Standard covers the design of the following three basic types of liners located in a load bearing structure:
a)   base supported liner;
b)   sectional liner;
c)   top hung liner.
Additionally this European Standard also applies to single wall chimneys whose surface is in contact with flue gases.
Liners built from prefabricated metal chimneys in accordance with EN 1856-1 and prEN 1856-2 are installed as base supported liners with additional supports and guides as defined in this standard.

TC - Modification to Table 4.

This European Standard is a product standard which specifies the performance requirements of cylindrical steel fabrications for use in single wall steel chimneys and steel liners for free-standing chimneys used to convey the flue gas from appliances to the outside atmosphere. It specifies also the requirements for insulation and cladding being part of the single wall steel chimney and liner, it provides for the evaluation of conformity of steel chimney/liners to this EN.
It is essential that the steel chimneys/steel chimney products manufactured in accordance with this European Standard comply with the requirements given in EN 13084-1 and ENV 1993-3-2.

This Part of this European Standard specifies particular requirements and performance criteria for the design and construction of cast-in-situ concrete chimneys as well as prefabricated concrete chimneys. It identifies requirements to ensure the mechanical resistance and stability of concrete chimneys in accordance with the general requirements given in EN 13084-1.
As for chimneys attached to buildings the criteria given in clause 1 of EN 13084-1:2000 apply.
Unless otherwise stated in the following clauses the basic standard for the design of concrete structures, ENV 1992-1-1, applies.

TC - Few editorial upates throughout the text

This European Standard deals with the general requirements and the basic performance criteria for the design and construction of all types of free-standing chimneys including their liners. A chimney may also be considered as free-standing, if it is guyed or laterally supported or if it stands on another structure.

This European standard deals with special requirements and performance criteria for the design and construction of lining systems made of brickwork for free-standing industrial chimneys. Current European practice favours sectional liners and the statements of the standard are mainly devoted to such solutions but are also largely applicable to independent and base supported liners. The differences in the design and construction of the two last types are covered in Annex C.