CEN/TC 166/WG 2 - Thermal and fluid dynamic calculation methods for chimneys

This European Standard specifies methods for the calculation of the thermal and fluid dynamic characteristics of chimneys serving one heating appliance.
The methods in this part of this European Standard are applicable to negative or positive pressure chimneys with wet or dry operating conditions. It is valid for chimneys with heating appliances for fuels subject to the knowledge of the flue gas characteristics which are needed for the calculation.
The methods in this part of this European Standard are applicable to chimneys with one inlet connected with one appliance. The methods in Part 2 of this European Standard are applicable to chimneys with multiple inlets and one inlet with multiple appliances. Part 3 describes methods for the development of diagrams and tables for chimneys serving one heating appliance.

This part of EN 13384 specifies methods for calculation of the thermal and fluid dynamic characteristics of chimneys serving more than one heating appliance.
This part of EN 13384 covers both the cases, either
a)   where the chimney is connected with more than one connecting flue pipe from individual or several appliances in a multi-inlet arrangement; or
b)   where the chimney is connected with an individual connecting flue pipe connecting more than one appliance in a cascade arrangement.
The case of multiple inlet cascade arrangement is covered by the case a).
This part of EN 13384 deals with chimneys operating under negative pressure conditions (there can be positive pressure condition in the connecting flue pipe) and with chimneys operating under positive pressure conditions and is valid for chimneys serving heating appliances for liquid, gaseous and solid fuels.
This part of EN 13384 does not apply to:
-   chimneys with different thermal resistance or different cross-section in the various chimney segments. This part does not apply to calculate energy gain;
-   chimneys with open fire places, e.g. open fire chimneys or chimney inlets which are normally intended to operate open to the room;
-   chimneys which serve different kinds of heating appliances regarding natural draught, fan assisted, forced draught or combustion engine. Fan assisted appliances with draught diverter between the fan and the chimney are considered as natural draught appliances;
-   chimneys with multiple inlets from more than 5 storeys. (This does not apply to balanced flue chimney.);
-   chimneys serving heating appliances with open air supply through ventilation openings or air ducts, which are not installed in the same air supply pressure region (e.g. same side of building).
For positive pressure chimneys this part only applies if any heating appliance which is out of action can be positively isolated to prevent flue gas back flow.

This European Standard gives guidance for the development of diagrams and tables which can be used to simplify the determination of the performance of chimneys serving one heating appliance in accordance with EN 13384-1. The diagrams and tables can be developed in order to assist in the design of a chimney configuration which is suitable for the desired application without undertaking the full calculation of
EN 13384-1.
This European Standard does not itself provide the diagrams and/or tables for use in the design of a chimney; it provides only the method to create these diagrams and tables.

This European Standard specifies methods for the calculation of the thermal and fluid dynamic characteristics of chimneys serving one heating appliance.
The methods in this part of this European Standard are applicable to negative or positive pressure chimneys with wet or dry operating conditions. It is valid for chimneys with heating appliances for fuels subject to the knowledge of the flue gas characteristics which are needed for the calculation.
The methods in this part of this European Standard are applicable to chimneys with one inlet connected with one appliance. The methods in Part 2 of this European Standard are applicable to chimneys with multiple inlets and one inlet with multiple appliances. Part 3 describes methods for the development of diagrams and tables for chimneys serving one heating appliance.

This part of EN 13384 specifies methods for calculation of the thermal and fluid dynamic characteristics of chimneys serving more than one heating appliance.
This part of EN 13384 covers both the cases, either
a)   where the chimney is connected with more than one connecting flue pipe from individual or several appliances in a multi-inlet arrangement; or
b)   where the chimney is connected with an individual connecting flue pipe connecting more than one appliance in a cascade arrangement.
The case of multiple inlet cascade arrangement is covered by the case a).
This part of EN 13384 deals with chimneys operating under negative pressure conditions (there can be positive pressure condition in the connecting flue pipe) and with chimneys operating under positive pressure conditions and is valid for chimneys serving heating appliances for liquid, gaseous and solid fuels.
This part of EN 13384 does not apply to:
-   chimneys with different thermal resistance or different cross-section in the various chimney segments. This part does not apply to calculate energy gain;
-   chimneys with open fire places, e.g. open fire chimneys or chimney inlets which are normally intended to operate open to the room;
-   chimneys which serve different kinds of heating appliances regarding natural draught, fan assisted, forced draught or combustion engine. Fan assisted appliances with draught diverter between the fan and the chimney are considered as natural draught appliances;
-   chimneys with multiple inlets from more than 5 storeys. (This does not apply to balanced flue chimney.);
-   chimneys serving heating appliances with open air supply through ventilation openings or air ducts, which are not installed in the same air supply pressure region (e.g. same side of building).
For positive pressure chimneys this part only applies if any heating appliance which is out of action can be positively isolated to prevent flue gas back flow.

This part of EN 13384 specifies methods for calculation of the thermal and fluid dynamic characteristics of chimneys serving more than one heating appliance.
This part of EN 13384 covers both the cases, either
a)   where the chimney is connected with more than one connecting flue pipe from individual or several appliances in a multi-inlet arrangement; or
b)   where the chimney is connected with an individual connecting flue pipe connecting more than one appliance in a cascade arrangement.
The case of multiple inlet cascade arrangement is covered by the case a).
This part of EN 13384 deals with chimneys operating under negative pressure conditions (there can be positive pressure condition in the connecting flue pipe) and with chimneys operating under positive pressure conditions and is valid for chimneys serving heating appliances for liquid, gaseous and solid fuels.
This part of EN 13384 does not apply to:
-   chimneys with different thermal resistance or different cross-section in the various chimney segments. This part does not apply to calculate energy gain;
-   chimneys with open fire places, e.g. open fire chimneys or chimney inlets which are normally intended to operate open to the room;
-   chimneys which serve different kinds of heating appliances regarding natural draught, fan assisted, forced draught or combustion engine. Fan assisted appliances with draught diverter between the fan and the chimney are considered as natural draught appliances;
-   chimneys with multiple inlets from more than 5 storeys. (This does not apply to balanced flue chimney.);
-   chimneys serving heating appliances with open air supply through ventilation openings or air ducts, which are not installed in the same air supply pressure region (e.g. same side of building).
For positive pressure chimneys this part only applies if any heating appliance which is out of action can be positively isolated to prevent flue gas back flow.

This European Standard specifies methods for the calculation of the thermal and fluid dynamic characteristics of chimneys serving one heating appliance.
The methods in this part of this European Standard are applicable to negative or positive pressure chimneys with wet or dry operating conditions. It is valid for chimneys with heating appliances for fuels subject to the knowledge of the flue gas characteristics which are needed for the calculation.
The methods in this part of this European Standard are applicable to chimneys with one inlet connected with one appliance. The methods in Part 2 of this European Standard are applicable to chimneys with multiple inlets and one inlet with multiple appliances. Part 3 describes methods for the development of diagrams and tables for chimneys serving one heating appliance.

This part of EN 13384 specifies methods for calculation of the thermal and fluid dynamic characteristics of chimneys serving more than one heating appliance.
This part of EN 13384 covers both the cases, either
(1)   where the chimney is connected with more than one connecting flue pipe from individual or several appliances in a multi-inlet arrangement or
(2)   where the chimney is connected with an individual connecting flue pipe connecting more than one appliance in a cascade arrangement.
The case of multiple inlet cascade arrangement is covered by the case (1).
This part of EN 13384 deals with chimneys operating under negative pressure conditions (there can be positive pressure condition in the connecting flue pipe) and with chimneys operating under positive pressure conditions and is valid for chimneys serving heating appliances for liquid, gaseous and solid fuels.
This part of EN 13384 does not apply to:
-   chimneys with different thermal resistance or different cross-section in the various chimney segments. This part does not apply to calculate energy gain.
-   chimneys with open fire places, e.g. open fire chimneys or chimney inlets which are normally intended to operate open to the room
-   chimneys which serve a mixture of fan assisted or forced draught burners or natural draught appliances. Fan assisted appliances with draught diverter between the fan and the chimney are considered as natural draught appliances.
-   chimneys with multiple inlets from more than 5 storeys. (This does not apply to balanced flue chimney.)
-   chimneys serving heating appliances with open air supply through ventilation openings or air ducts, which are not installed in the same air supply pressure region (e.g. same side of building).
For positive pressure chimneys this part only applies if any heating appliance which is out of action can be positively isolated to prevent flue gas back flow.

This standard specifies methods for calculation of the thermal and fluid dynamic characteristics of chimneys. This standard deals with chimneys with negative or positive pressure with wet or dry operating conditions valid for chimneys with heating appliances for fuels subject to the knowledge of the flue gas characteristics which are needed for the calculation. The fuels which are explicitly covered in this standard are: liquefied petroleum gas, manufactured gas (town gas), domestic heating oil and residual fuel oil, solid mineral fuel (natural and manufactured), wood.

This European Standard specifies methods for calculation of the thermal and fluid dynamic characteristics of chimneys serving more than one heating appliances. A chimney is serving more than one appliance when either it is connected with more than one flue pipe to the appliances or there is one or more flue pipes connected with more than one appliances. This standard deals with chimneys with negative and positive pressure conditions and is valid for chimneys serving heating appliances for liquid, gazeous and solid fuels.

Introduction on a calculation method for concentric balanced flue chimney configurations

This standard specifies methods for calculation of the thermal and fluid dynamic characteristics of chimneys. This standard deals with chimneys with negative or positive pressure with wet or dry operating conditions valid for chimneys with heating appliances for fuels subject to the knowledge of the flue gas characteristics which are needed for the calculation. The fuels which are explicitly covered in this standard are: liquefied petroleum gas, manufactured gas (town gas), domestic heating oil and residual fuel oil, solid mineral fuel (natural and manufactured), wood.

TC - Modification to 5.10.1, Equation 30