ДСТУ EN 13384-1:2022 Дымовые трубы. Тепловые и флюидодинамические методы расчета. Часть 1. Дымовые трубы, обслуживающие один сжигающий прибор (EN 13384-1:2015+A1:2019, IDT)

ДСТУ EN 13384-1:2022
(EN 13384-1:2015+A1:2019, IDT)

Димові труби. Теплові та флюїдодинамічні методи розрахунку.
Частина 1. Димові труби, що обслуговують один спалювальний прилад

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

European foreword

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols and abbreviations

5 Calculation method for non-balanced flue chimneys

5.1 General principles

5.2 Pressure requirements

5.2.1 Negative pressure chimneys

5.2.2 Positive pressure chimneys

5.3 Temperature requirement

5.4 Calculation procedure

5.5 Flue gas data characterising the combustion appliance

5.5.1 General

5.5.2 Flue gas mass flow and combustion air mass flow

5.5.3 Flue gas temperature

5.5.4 Minimum draught for the combustion appliance (P_w) for negative pressure chimney

5.5.5 Maximum draught for the combustion appliance (P_wmax) for negative pressure chimney

5.5.6 Maximum differential pressure of the combustion appliance (P_wO) for positive pressure chimney

5.5.7 Minimum differential pressure of the combustion appliance (P_wOmin) for positive pressure chimney

5.6 Characteristic data for the calculation

5.6.1 General

5.6.2 Mean value for roughness (r)

5.6.3 Thermal resistance (1/Λ)

5.7 Basic values for the calculation

5.7.1 Air temperatures

5.7.2 External air pressure (p_L)

5.7.3 Gas constant

5.7.4 Density of the external air (ρ_L)

5.7.5 Specific heat capacity of the flue gas (c_p)

5.7.6 Condensing temperature (T_sp)

5.7.7 Correction factor for temperature instability (S_H)

5.7.8 Flow safety coefficient (S_E)

5.8 Determination of the temperatures

5.8.1 General

5.8.2 Calculation of the coefficient of cooling (K)

5.8.3 Coefficient of heat transmission (k_h)

5.9 Determination of the density of the flue gas and the velocity of the flue gas

5.9.1 Density of the flue gas (ρ_m)

5.9.2 Velocity of the flue gas (w_m)

5.10 Determination of the pressures

5.10.1 Pressure at the flue gas inlet into the chimney

5.10.2 Theoretical draught available due to chimney effect (P_H)

5.10.3 Pressure resistance of the chimney (P_R)

5.10.4 Wind velocity pressure (P_L)

5.11 Minimum draught required at the flue gas inlet into the chimney and maximum allowed draught (P_Ze and P_Zemax) and maximum and minimum differential pressure at the flue gas inlet into the chimney (P_WOe and P_WOemin)

5.11.1 General

5.11.2 Minimum and maximum draught for the combustion appliance (P_W and P_Wmax) and maximum and minimum differential pressure of the combustion appliance (P_WD and P_WOmin)

5.11.3 Effective pressure resistance of the connecting flue pipe (P_FV)

5.11.4 Pressure resistance of the air supply (P_B)

5.12 Calculation of the inner wall temperature at the chimney outlet (T_iob)

6 Secondary air for negative pressure chimneys

6.1 General

6.2 Calculation method

6.3 Basic values for the calculation of secondary air

6.3.1 General

6.3.2 Mixing calculations

6.4 Pressures

6.4.1 Pressure resistance for the air supply with secondary air (P_BNL)

6.4.2 Draught required for the secondary air devices (P_NL)

6.4.3 Pressure resistance for that part of the connecting flue pipe before the secondary air device (P_FV1)

6.4.4 Pressure requirement with secondary air

6.5 Temperature requirement with secondary air

7 Calculation method for balanced flue chimneys

7.1 General principles

7.2 Pressure requirements

7.3 Temperature requirements

7.4 Calculation procedure

7.5 Flue gas data characterizing the combustion appliance

7.6 Characteristic data for the calculation

7.7 Basic values for the calculation

7.7.1 Air temperatures

7.7.2 Other basic values

7.8 Determination of the temperatures

7.8.1 Non-concentric (separate) ducts

7.8.2 Concentric ducts – calculation based on a correction factor for heat radiation

7.8.3 Concentric ducts – calculation based on calculated heat radiation

7.8.4 Mean temperatures for pressure calculation

7.9 Determination of densities and velocities

7.9.1 Density and velocity of the flue gas

7.9.2 Density and velocity of the combustion air

7.10 Determination of pressures

7.10.1 Pressure at the flue gas inlet into the chimney

7.10.2 Theoretical draught due to chimney effect in the chimney segment (P_H)

7.10.3 Pressure resistance in the chimney segment (P_R)

7.10.4 Wind velocity pressure (P_L)

7.11 Minimum draught required at the flue gas inlet into the chimney and maximum allowed draught (P_Ze and P_Zemax) and maximum and minimum differential pressure at the flue gas inlet into the chimney (P_WOe and P_WOemin)

7.11.1 General

7.11.2 Minimum and maximum draught for the combustion appliance (P_W and P_Wmax) and maximum and minimum differential pressure of the combustion appliance (P_WD and P_WOmin)

7.11.3 Effective pressure resistance of the connection pipe (P_FV)

7.11.4 Pressure resistance of the air supply

7.12 Calculation of the inner wall temperature at the chimney outlet (T_iob)

8 Consideration of the condensation heat of the flue gas water vapour

8.1 General

8.2 Onset of condensation

8.3 Calculation of the flue gas temperature at the outlet of a chimney segment with condensation (j ≥ NsegK)

9 Consideration of chimney fans

9.1 General

9.2 Inline fans

9.3 Exhaust fans

Annex A (informative) Calculation of thermal resistance

Annex B (informative) Tables

Annex C (informative) Chimney outlet with regard to adjacent buildings

Annex D (informative) Determination of the gas constant R considering the condensation