EN 13384-1-2015 en Chimneys - Thermal and fluid dynamic calculation methods - Part 1 Chimneys serving one heating appliance《烟囱 暖流及流体动力学计算方法 第1部分 一个烟囱加热器》.pdf

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1、BSI Standards PublicationBS EN 13384-1:2015Chimneys Thermal and fluiddynamic calculation methodsPart 1: Chimneys serving one heatingapplianceBS EN 13384-1:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13384-1:2015.It supersedes BS EN 13384-1:2002+A2:2008

2、which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/506, Chimneys.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. User

3、s are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 80847 0ICS 91.060.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of t

4、heStandards Policy and Strategy Committee on 30 April 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 13384-1:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13384-1 April 2015 ICS 91.060.40 Supersedes EN 13384-1:2002+A2:2008English Version Chimneys - Th

5、ermal and fluid dynamic calculation methods - Part 1: Chimneys serving one heating appliance Conduits de fume - Mthodes de calcul thermo-araulique - Partie 1: Conduits de fume ne desservant quun seul appareil Abgasanlagen - Wrme- und strmungstechnische Berechnungsverfahren - Teil 1: Abgasanlagen mit

6、 einer Feuersttte This European Standard was approved by CEN on 24 January 2015. 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 b

7、ibliographical 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 res

8、ponsibility 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, Former Yugoslav R

9、epublic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NO

10、RMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13384-1:2015 EBS EN 13384-1:2015EN 13384-1:2015 (E) 2 Contents Page Fo

11、reword 5 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Symbols and abbreviations . 10 5 Calculation method for non-balanced flue chimneys . 14 5.1 General principles. 14 5.2 Pressure requirements . 15 5.2.1 Negative pressure chimneys . 15 5.2.2 Positive pressure chimneys 16 5.3 Tem

12、perature requirement 16 5.4 Calculation procedure 17 5.5 Flue gas data characterising the heating appliance . 18 5.5.1 General . 18 5.5.2 Flue gas mass flow . 18 5.5.3 Flue gas temperature . 19 5.5.4 Minimum draught for the heating appliance (PW) for negative pressure chimney 19 5.5.5 Maximum draugh

13、t for the heating appliance (PWmax) for negative pressure chimney . 20 5.5.6 Maximum differential pressure of the heating appliance (PWO) for positive pressure chimney . 20 5.5.7 Minimum differential pressure of the heating appliance (PWOmin) for positive pressure chimney . 20 5.6 Characteristic dat

14、a for the calculation . 20 5.6.1 General . 20 5.6.2 Mean value for roughness (r) 20 5.6.3 Thermal resistance (1/) 20 5.7 Basic values for the calculation 21 5.7.1 Air temperatures . 21 5.7.2 External air pressure (pL) . 23 5.7.3 Gas constant . 23 5.7.4 Density of the external air (L) 24 5.7.5 Specif

15、ic heat capacity of the flue gas (cp) 24 5.7.6 Condensing temperature (Tsp) . 24 5.7.7 Correction factor for temperature instability (SH) 24 5.7.8 Flow safety coefficient (SE) 24 5.8 Determination of the temperatures . 25 5.8.1 General . 25 5.8.2 Calculation of the coefficient of cooling (K) 25 5.8.

16、3 Coefficient of heat transmission (kb) 26 5.9 Determination of the density of the flue gas and the velocity of the flue gas 28 5.9.1 Density of the flue gas (m) 28 5.9.2 Velocity of the flue gas (wm) . 28 5.10 Determination of the pressures . 29 5.10.1 Pressure at the flue gas inlet into the chimne

17、y . 29 5.10.2 Theoretical draught available due to chimney effect (PH) 30 5.10.3 Pressure resistance of the chimney (PR) 30 5.10.4 Wind velocity pressure (PL) . 31 BS EN 13384-1:2015EN 13384-1:2015 (E) 3 5.11 Minimum draught required at the flue gas inlet into the chimney and maximum allowed draught

18、 (PZeand PZemax) and maximum and minimum differential pressure at the flue gas inlet into the chimney (PZOeand PZOemin) 32 5.11.1 General . 32 5.11.2 Minimum and maximum draught for the heating appliance (PWand PWmax) and maximum and minimum differential pressure of the heating appliance (PWOand PWO

19、min) 33 5.11.3 Effective pressure resistance of the connecting flue pipe (PFV) . 33 5.11.4 Pressure resistance of the air supply (PB) 34 5.12 Calculation of the inner wall temperature at the chimney outlet (Tiob) 35 6 Secondary air for negative pressure chimneys . 37 6.1 General . 37 6.2 Calculation

20、 method . 37 6.3 Basic values for the calculation of secondary air 37 6.3.1 General . 37 6.3.2 Mixing calculations . 37 6.4 Pressures . 38 6.4.1 Pressure resistance for the air supply with secondary air (PBNL) . 38 6.4.2 Draught required for the secondary air devices (PNL) . 39 6.4.3 Pressure resist

21、ance for that part of the connecting flue pipe before the secondary air device (PFV1) 40 6.4.4 Pressure requirement with secondary air . 41 6.5 Temperature requirement with secondary air 41 7 Calculation method for balanced flue chimneys . 41 7.1 General principles . 41 7.2 Pressure requirements . 4

22、2 7.3 Temperature requirements . 43 7.4 Calculation procedure . 43 7.5 Flue gas data characterizing the heating appliance 43 7.6 Characteristic data for the calculation 44 7.7 Basic values for the calculation . 44 7.7.1 Air temperatures 44 7.7.2 Other basic values . 45 7.8 Determination of the tempe

23、ratures 45 7.8.1 Non-concentric (separate) ducts . 45 7.8.2 Concentric ducts calculation based on a correction factor for heat radiation 45 7.8.3 Concentric ducts calculation based on calculated heat radiation 60 7.8.4 Mean temperatures for pressure calculation 64 7.9 Determination of densities and

24、velocities 65 7.9.1 Density and velocity of the flue gas 65 7.9.2 Density and velocity of the supply air . 65 7.10 Determination of pressures 66 7.10.1 Pressure at the flue gas inlet into the chimney 66 7.10.2 Theoretical draught due to chimney effect in the chimney segment (PH) . 66 7.10.3 Pressure

25、 resistance in the chimney segment (PR) . 66 7.10.4 Wind velocity pressure (PL) 66 7.11 Minimum draught required at the flue gas inlet into the chimney and maximum allowed draught (PZeand PZemax) and maximum and minimum differential pressure at the flue gas inlet into the chimney (PZOeand PZOemin) 6

26、6 7.11.1 General . 66 7.11.2 Minimum and maximum draught for the heating appliance (PWand PWmax) and maximum and minimum differential pressure of the heating appliance (PWOand PWOmin) 67 7.11.3 Effective pressure resistance of the connection pipe (PFV) 67 7.11.4 Pressure resistance of the air supply

27、 . 67 7.12 Calculation of the inner wall temperature at the chimney outlet (Tiob) 70 8 Consideration of the condensation heat of the flue gas water vapour . 70 BS EN 13384-1:2015EN 13384-1:2015 (E) 4 8.1 General . 70 8.2 Onset of condensation . 71 8.3 Calculation of the flue gas temperature at the o

28、utlet of a chimney segment with condensation (j NsegK) 73 9 Consideration of chimney fans . 78 9.1 General . 78 9.2 Inline fans 79 9.3 Exhaust fans 80 Annex A (informative) Calculation of thermal resistance 82 Annex B (informative) Tables 83 Annex C (informative) Chimney outlet with regard to adjace

29、nt buildings . 98 Annex D (informative) Determination of the gas constant R considering the condensation . 99 BS EN 13384-1:2015EN 13384-1:2015 (E) 5 Foreword This document (EN 13384-1:2015) has been prepared by Technical Committee CEN/TC 166 “Chimneys”, the secretariat of which is held by ASI. This

30、 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 October 2015, and conflicting national standards shall be withdrawn at the latest by October 2015. Attention is drawn to the possibility that some of th

31、e elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13384-1:2002+A2:2008. According to EN 13384-1:2002+A2:2008 the following fundamental changes are given: editori

32、al mistakes have been corrected; mistakes in formulas have been corrected; for wood the rise of the dew point to take into account the acid condensation has been deleted; table for material characteristics in Table B.5 has been adapted to EN 15287-1 and supplemented by radiation coefficients; in Cal

33、culation of thermal resistance according to Annex A are linked to the method of EN 15287-1 for taking into account the temperature dependence has been added; for non-concentric ducts the calculation of the mean temperature of the air supply has been amended; for chimney fans a calculation procedure

34、has been added; This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This European Standard “Chimneys Thermal and fluid dynamic calculation methods” consists of three Parts: Part 1: Chimneys serving one heating appliance Par

35、t 2: Chimneys serving more than one heating appliance Part 3: Methods for the development of diagrams and tables for chimneys serving one heating appliance According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this E

36、uropean Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,

37、Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13384-1:2015EN 13384-1:2015 (E) 6 1 Scope 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 th

38、is 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 th

39、is 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

40、 chimneys serving one heating appliance. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the

41、 referenced document (including any amendments) applies. EN 1443, Chimneys - General requirements EN 1856-1, Chimneys - Requirements for metal chimneys - Part 1: System chimney products EN 1859, Chimneys Metal chimneys Test methods EN 13502, Chimneys - Requirements and test methods for clay/ceramic

42、flue terminals EN 15287-1:2007+A1:2010, Chimneys - Design, installation and commissioning of chimneys - Part 1: Chimneys for non-roomsealed heating appliances prEN 16475-2, Chimneys - Accessories - Part 2: Chimney fans - Requirements and test methods CEN/TR 1749, European scheme for the classificati

43、on of gas appliances according to the method of evacuation of the combustion products (types) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1443 and the following apply. 3.1 heat output Q amount of heat produced by a heating appliance per unit of ti

44、me 3.1.1 nominal heat output QNcontinuous heat output specified by the manufacturer of the heating appliance related to specified fuels BS EN 13384-1:2015EN 13384-1:2015 (E) 7 3.1.2 heat output range range of output below the nominal heat output specified by the manufacturer over which the appliance

45、 can be used 3.2 heat input QFamount of heat in unit time which is supplied to the heating appliance by the fuel based on its net caloric value Hu3.3 efficiency of the heating appliance Wratio of the heat output (Q) from the appliance to the heat input (QF) 3.4 flue gas mass flow m mass of flue gas

46、leaving the heating appliance through the connecting flue pipe per time unit 3.5 effective height of the chimney H difference in height between the axis of the flue gas inlet into the chimney and the outlet of the chimney 3.6 effective height of the connecting flue pipe HVdifference in height betwee

47、n the axis of the flue gas chimney outlet of the heating appliance and the axis of the flue gas inlet into the chimney Note 1 to entry In the case of open fire chimneys, HVis the difference in height between the height of the upper frame of the furnace and the axis of the flue gas inlet into the chi

48、mney. 3.7 draught positive value of the negative pressure in the flue 3.8 theoretical draught available due to chimney effect PHpressure difference caused by the difference in weight between the column of air equal to the effective height outside a chimney and the column of flue gas equal to the eff

49、ective height inside the chimney 3.9 pressure resistance of the chimney PRpressure which is necessary to overcome the resistance of the flue gas mass flow which exists when carrying the flue gases through the chimney 3.10 wind velocity pressure PLpressure generated on the chimney due to wind BS EN 13384-1:2015EN 13384-1:2015 (E) 8 3.11 minimum draught at the flue gas inlet into the chimney PZdifference between the minimum theoretical draught and the sum of the maximum pressure resistance of the chimney and the wind velocity pressure 3.1