DIN EN 13384-2-2015 Chimneys - Thermal and fluid dynamic calculation methods - Part 2 Chimneys serving more than one heating appliance German version EN 13384-2 2015《烟囱 热和流体动态计算方法 .pdf

1、June 2015 Translation by DIN-Sprachendienst.English price group 27No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 9

2、1.060.40!%C;h“2322469www.din.deDDIN EN 13384-2Chimneys Thermal and fluid dynamic calculation methods Part 2: Chimneys serving more than one heating appliance;English version EN 13384-2:2015,English translation of DIN EN 13384-2:2015-06Abgasanlagen Wrme- und strmungstechnische Berechnungsverfahren Te

3、il 2: Abgasanlagen mit mehreren Feuersttten;Englische Fassung EN 13384-2:2015,Englische bersetzung von DIN EN 13384-2:2015-06Conduit de fume Mthodes de calcul thermo-araulique Partie 2: Conduits de fume desservant plus dun appareil de chauffage;Version anglaise EN 13384-2:2015,Traduction anglaise de

4、 DIN EN 13384-2:2015-06SupersedesDIN EN 13384-2:2009-07www.beuth.deDocument comprises 76 pagesIn case of doubt, the German-language original shall be considered authoritative.05.15 DIN EN 13384-2:2015-06 2 A comma is used as the decimal marker. National foreword This document (EN 13384-2:2015) has b

5、een prepared by Technical Committee CEN/TC 166 “Chimneys” (Secretariat: ASI, Austria), The responsible German body involved in its preparation was the DIN-Normenausschuss Bauwesen (DIN Standards Committee Building and Civil Engineering), Working Committee NA 005-11-39 AA Abgasanlagen (SpA zu CEN/TC

6、166, CEN/TC 166/ WG 1 und WG 2). The English term “chimney” generally corresponds to the German term senkrechter Teil der Abgasanlage. In the German version of this standard, however, the term Abgasanlage is used throughout. Amendments This standard differs from DIN EN 13384-2:2009-07 as follows: a)

7、 editorial mistakes have been corrected; b) mistakes in equations have been corrected; c) characteristic values for heating appliances for solid and liquid fuels in Annex B have been adapted to actual data; d) for the mixture of fuels, a clarification about the rise of the dew point has been added;

8、e) for non-concentric ducts the calculation of the mean temperature of the air supply has been amended; f) the process for iteration for appliances with low impact of the pressure to the flue gas mass flow (e.g. CHP with combustion engine) has been simplified; g) for chimney fans, a calculation proc

9、edure has been added. Previous editions DIN 4705-3: 1984-07 DIN V 4705-3: 1997-08 DIN EN 13384-2: 2003-12, 2009-07 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13384-2 April 2015 ICS 91.060.40 Supersedes EN 13384-2:2003+A1:2009English Version Chimneys - Thermal and fluid dynamic calculation

10、methods - Part 2: Chimneys serving more than one heating appliance Conduits de fume - Mthodes de calcul thermo-araulique - Partie 2: Conduits de fume desservant plus dun appareil de chauffage Abgasanlagen - Wrme- und strmungstechnische Berechnungsverfahren - Teil 2: Abgasanlagen mit mehreren Feuerst

11、tten 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 bibliographica

12、l 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 o

13、f 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 Republic of Ma

14、cedonia, 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 NORMALISATION E

15、UROPISCHES 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 13384-2:2015 EEN 13384-2:2015 (E) 2 Contents Page Foreword 5 Introduction .6 1 Scop

16、e 7 2 Normative references 7 3 Terms and definitions .8 4 General symbols and abbreviations 9 5 Calculation method9 5.1 General principles9 5.2 Pressure equilibrium condition . 11 5.2.1 Negative pressure chimneys . 11 5.2.2 Positive pressure chimneys 12 5.3 Mass flow requirement . 13 5.4 Pressure re

17、quirements . 13 5.4.1 Negative pressure chimneys . 13 5.4.2 Positive pressure chimneys 14 5.5 Temperature requirement 15 5.6 Calculation procedure 15 6 Flue gas data characterising the heating appliance . 18 7 Data for chimney and connecting flue pipes . 19 8 Basic data for the calculation 20 8.1 Ge

18、neral . 20 8.2 Air temperatures . 20 8.2.1 External air temperature (TL) . 20 8.2.2 Ambient air temperature (Tu) . 20 8.3 External air pressure (pL) . 20 8.4 Gas constant . 20 8.4.1 Gas constant of the air (RL) 20 8.4.2 Gas constant of flue gas (R) 20 8.5 Density of air (L) 20 8.6 Specific heat capa

19、city of the flue gas (cp) 20 8.7 Water vapour content (H2O),j) and condensing temperature (Tsp) . 20 8.8 Correction factor for temperature instability (SH) 21 8.9 Flow safety coefficient (SE) 21 8.10 External coefficient of heat transfer . 21 9 Determination of temperatures . 21 10 Mixing calculatio

20、ns . 23 10.1 General . 23 10.2 Flue gas mass flow (j,m ) 23 10.3 Flue gas temperature at the inlet of the chimney segment (Te,j) 23 10.4 CO2-content of the flue gas in the chimney segment (CO2),j) . 23 10.5 H2O-content of the flue gas (H2O),j) 24 10.6 Gas constant of the flue gas (R,j) 24 10.7 Flue

21、gas data . 24 10.7.1 Specific heat capacity (cpV,j), (cp,j) 24 DIN EN 13384-2:2015-06 EN 13384-2:2015 (E) 3 10.7.2 Thermal conductivity of the flue gas (AV,j), (A,j) 24 10.7.3 Dynamic viscosity (AV,j), (A,j) 25 10.7.4 Condensing temperature (TSP) . 25 11 Density and velocity of the flue gas 25 12 De

22、termination of the pressures . 26 12.1 Pressures at each inlet of the chimney segments . 26 12.1.1 Draught . 26 12.1.2 Positive pressure . 26 12.1.3 Draught due to chimney effect in the chimney segment (PH,j) 27 12.1.4 Pressure resistance in the chimney segment (PR,j) . 27 12.2 Minimum draught requi

23、red 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) 29 12.2.1 Minimum required and maximum allowed draught . 29 12.2.2 Maximum available and minimum allowed diffe

24、rential pressure . 29 12.2.3 Calculated pressure resistance of the connecting flue pipe (PV,j) 30 12.2.4 Calculated pressure resistance of the air supply (PBc,j) 32 13 Inner wall temperature 33 14 Cascade installations 33 14.1 Principle of the calculation method . 33 14.2 Pressure equilibrium condit

25、ion . 34 14.2.1 Negative pressure cascade installation 34 14.2.2 Positive pressure cascade installation . 35 14.3 Mass flow requirement 36 14.4 Pressure requirements . 36 14.4.1 Negative pressure chimneys 36 14.4.2 Positive pressure chimneys . 37 14.5 Temperature requirement . 38 14.6 Calculation pr

26、ocedure . 38 14.7 Pressures at the outlet of the connecting flue pipe and pressures at the inlet of the collector segment 38 14.7.1 Pressure at the flue gas inlet into the collector segment (PZC,j,lor PZOC,j,l). 38 14.7.2 Pressures required or available at the outlet of the connecting flue pipe (PZe

27、C,j,l, PZOeC,j,l) 42 14.8 Inner wall temperature (TiobC,j,l) . 44 15 Balanced flue chimney 44 15.1 Principle of the calculation method . 44 15.2 Pressure equilibrium condition . 44 15.3 Mass flow requirement 45 15.4 Pressure requirements . 45 15.4.1 Negative pressure chimneys 45 15.4.2 Positive pres

28、sure chimneys . 45 15.5 Temperature requirements . 47 15.6 Calculation procedure for balanced flue chimneys . 47 15.7 Mass flow of the supply air 49 15.8 Determination of the temperatures in balanced flue chimneys 50 15.8.1 Separate ducts . 50 15.8.2 Concentric ducts . 50 15.8.3 Concentric connectio

29、n pipes . 58 15.9 Pressures of the air supply ducts 64 15.9.1 Draught due to chimney effect of the air supply duct of chimney segment j . 64 15.9.2 Draught due to chimney effect of the air supply duct of connection pipes 64 15.9.3 Pressure resistance of the air supply duct of the chimney segment j (

30、PRB,j) 64 15.9.4 Pressure resistance of the air supply duct of the connection pipe j (PRBV,j) . 66 15.10 Density and velocity of the supply air . 68 DIN EN 13384-2:2015-06 EN 13384-2:2015 (E) 4 15.10.1 Density and velocity of the supply air in the air supply duct averaged over the length of the chim

31、ney segment . 68 15.10.2 Density and velocity of the supply air averaged over the length of the connection pipes 68 16 Consideration of chimney fans . 69 16.1 General . 69 16.2 Inline fans 70 16.3 Exhaust fans 71 Annex A (informative) Recommendations . 72 A.1 General . 72 A.2 Recommendations for the

32、 chimney and heating appliances . 72 A.3 Recommendations for connecting flue pipes 72 Annex B (informative) Characteristics for the heating appliance . 73 DIN EN 13384-2:2015-06 EN 13384-2:2015 (E) 5 Foreword This document (EN 13384-2:2015) has been prepared by Technical Committee CEN/TC 166 “Chimne

33、ys”, the secretariat of which is held by ASI. 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 October 2015, and conflicting national standards shall be withdrawn at the latest by October 2015. Att

34、ention is drawn to the possibility that some of the 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 13384-2:2003+A1:2009. According to EN 13384-2:2003+A1:2009 th

35、e following fundamental changes are given: editorial mistakes have been corrected; mistakes in formulas have been corrected; characteristic values for heating appliances for solid fuel and for liquid fuels in Annex B have been adapted to actual data; for the mixture of fuels a clarification about th

36、e rise of the dew point has been added; for non-concentric ducts the calculation of the mean temperature of the air supply has been amended; the process for iteration for appliances with low impact of the pressure to the flue gas mass flow (e.g. CHP with combustion engine) has been simplified; for c

37、himney fans a calculation procedure has been added; This standard is one of a series of standards prepared by CEN/TC 166 comprising product standards and execution standards for chimneys. National installation rules are not regarded in the standard. This document has been prepared under a mandate gi

38、ven 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 Part 2: Chimneys serving more than one heating appliance Part 3: Meth

39、ods 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 European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Cze

40、ch 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, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdo

41、m. DIN EN 13384-2:2015-06 EN 13384-2:2015 (E) 6 Introduction The calculation described in this standard is complex and is intended to be solved by using a computer programme. The general principles of this calculation method of EN 13384-1 also apply to this standard. This standard is in support of t

42、he execution standards for a chimney installation serving more than one heating appliance. The execution standard identifies limitations and safety considerations associated with the design, installation, commissioning and maintenance of a chimney serving more than one heating appliance (not dealt w

43、ithin the calculation method). DIN EN 13384-2:2015-06 EN 13384-2:2015 (E) 7 1 Scope 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) whe

44、re 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

45、 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 servi

46、ng 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

47、 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

48、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 flo