ДСТУ Б EN 13384-2:2010
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1 2 З? 4 5 5.1 5.2 5.2.1 5.2.2 5.3 5.4 5.4.1 5.4.2 5.5 5.6 6 7 8 8.1 8.1.1 . ,23 ..
8.1.2 T u ) 23
8.2 8.3 8.3.1 8.3.2 8.4 8.5 (c p ) 23 (c p ) 23
8.6 8.7 8.8 9 10 10.1 10.2 10.3 10.5 ( c pv,j )> ( c p,j ) 28
10.6 .2 10.6 .3 11 12 12.1 12.1.1 12.1.2 12.1.3 12.1.4 12.2. 1 12.2. 2 12.2. 3 12.2. 4 8.9 External coefficient of heat transfer 24
9 Determination of temperatures .... 25
10 Mixing calculations 27
10.1 Flue gas mass flow (m, 10.2 Flue gas temperature at the inlet
of the chimney segment (T e chimney segment (o (CO 2 ), 10.4 H 2 O-content of the flue gas (n(CO 2 ).y) 28
10.5 Gas constant oftheflue gas (Ry). . 28
10.6 Flue gas data 28
10.6.1 Specific heat capacity
( c pv,j)' ( c p,j) 28
10.6.2 Thermal conductivity of the flue
gas ( 10.6.3 Dynamic viscosity
(Wj).(TlAy) 29
11 Density and velocity of the flue gas . . 30
12 Determination of the pressures .... 31
12.1 Pressures at each inlet of the chimney segments 31
12.1.1 Draught 31
12.1.2 Positive pressure 31
12.1.3 Draught due to chimney effect
in the chimney segment ( chimney segment (P R 12.2.1 Minimum required and maximum allowed draught 35
12.2.2 Maximum available and minimum
allowed differential pressure . . 35
12.2.3 Calculated pressure resistance of the connecting flue pipe
Wj) 36
12.2.4 Calculated pressure resistance
of the air supply (P Sc 13 14 14.1 14.2 14.2.1 14.2.2 14.3 14.4 14.4.1 14.4.2 14.5 14.6 14.7 14.7.1 ( P ZC,j,l 14.7.2 (PzeC.j.K PzeOC,j,l') 51
14.8 15 15.1 15.2 15.3 15.4 15.4.1 15.4.2 15.5 15.6 15.7 15.8 15.8.1 15.8.2 13 Inner wall temperature 40
14 Cascade installations 41
14.1 Principle of the calculation method 41
14.2 Pressure equilibrium condition . . 41
14.2.1 Negative pressure cascade installation 41
14.2.2 Positive pressure cascade installation 43
14.3 Mass flow requirement 43
14.4 Pressure requirements 44
14.4.1 Negative pressure chimneys . . 44
14.4.2 Positive pressure chimneys . . 45
14.5 Temperature requirement .... 47
14.6 Calculation procedure 47
14.7 Pressures at the outlet of the connecting flue pipe and pressures at the inlet of the collector segment. . . 47
14.7.1 Pressure at the flue gas inlet into the collector segment (P zc Pzocj.l) "... 47
14.7.2 Pressures required or available at the outlet of the connecting flue
pipe (PzeC,j,l< PzeOCj.i) • ■? ■? • 51
14.8 Inner wall temperature
(JiobCJ.l) 54
15 Balanced flue chimney 54
15.1 Principle of the calculation method 54
15.2 Pressure equilibrium condition . . 56
15.3 Mass flow requirement 56
15.4 Pressure requirements 56
15.4.1 Negative pressure chimneys . . 56
15.4.2 Positive pressure chimneys. . . 57
15.5 Temperature requirements . ... 58
15.6 Calculation procedure for balanced flue chimneys 58
15.7 Mass flow of the supply air . ... 61
15.8 Determination of the temperatures in balanced flue chimneys .... 62
15.8.1 Separate ducts 62
15.8.2 Concentric ducts 62
15.8.3 15.9 15.9.1 15.9.2 15.9.3 15.9.4 15.10 15.10.1 15.10.2 15.8.3 Concentric connection pipes . . 70
15.9 Pressures of the air supply ducts 77
15.9.1 Draught due to chimney effect of the air supply duct of chimney segment j 1~I
15.9.2 Draught due to chimney effect of the air supply duct of connection pipes 78
15.9.3 Pressure resistance of the air supply duct of the chimney segment j (P RB j) 78
15.9.4 Pressure resistance of the air supply duct of the connection pipes y(P Rei/j ) 80
15.10 Density and velocity of the supply air 82
15.10.1 Density and velocity of the supply air in the air supply duct averaged over the length of the chimney segment 82
15.10.2 Density and velocity of the supply air averaged over the length of the connection pipes 83
Annex A (informative) Recommendations 85
Annex В? (informative)
Characteristics for the heating appliance 86 - - - " - - -
Engineering equipment of buildings and constructions
Part 2. Chimneys serving more than 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.
- - - - - 2 EN 1443:2003 Chimneys- General requirements EN 13384-1:2008 Chimneys - Thermal and fluid dynamic calculation methods - Part 1: Chimneys serving one appliance
EN 15287-1:2007 Chimneys - Design, installation and commissioning of chimneys - Part 1: Chimneys for non-roomsealed heating appliances
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 doe's 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.
The following referenced documents are indispensable for the application of this document. For dated references, only ,the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1443:2003 Chimneys - General requirements EN 13384-1:2008 Chimneys - Thermal and fluid dynamic calculation methods - Part 1: Chimneys serving one appliance
EN 15287-1:2007 Chimneys - Design, installation and commissioning of chimneys - Part 1: Chimneys for non-roomsealed heating appliances
EN 15287-2:2008 Chimneys - Design, installation and commissioning of chimneys - Part 2: Chimneys for roomsealed appliances
EN 15287-2:2008 Chimneys - Design, installation and commissioning of chimneys - Part 2: Chimneys for roomsealed appliances
EN 15287-2:2008.
For the purposes of this document, the terms and definitions given in EN 1443:2003, EN 13384-1:2002, EN 15287-1:2007,
EN 15287-2:2008 and the following apply.
3.1 chimney segment
part of a chimney between two consecutive flue gas connections or between the last flue gas connection and the chimney outlet -
3.2 collector segment
part of a connecting flue pipe between two consecutive flue gas connections or between the last flue gas connection and the chimney inlet
3.3 air-flue gas system
system of concentric or non concentric ducts or parallel ducts for transport of combustion air from the open air to the heating appliances and products of combustion from the heating appliances to the open air
3.4 3.4.1 3.4.2 3.5 3.6 3.7 3.8 3.9 3.4 flue gas mass flow (m)
mass of the flue gas leaving the heating appliance through the connecting flue pipe per unit of time. In case of a chimney serving more than one heating appliance, the air being transported through an appliance which is out of action is also given the term flue gas mass flow
3.4.1 declared flue gas mass flow(m vv j)
flue gas mass flow given by the manufacturer of the heating appliance j with respect to the heat output used in the calculation
3.4.2 calculated flue gas mass flow (rh Wc j)
flue gas mass flow calculated with respect to calculated draught and the working conditions of the heating appliance j
3.5 calculated flue gas temperature (7 Wc j)
flue gas temperature at the outlet of the heating appliance j depending on the calculated flue gas mass flow
3.6 calculated draught of the flue gas of the heating appliance (Pwcj)
draught at the flue gas outlet of the heating appliance j depending on the calculated flue gas mass flow
3.7 flue damper
device to close or partially close the flue
3.8 balanced flue chimney
chimney where the point of air entry to the combustion air duct is adjacent to the point of discharge of combustion products from the flue, the inlet and outlet being so positioned that wind effects are substantially balanced
3.9 cascade arrangement
arrangement where two or more appliances situated in the same space are connected by a common connecting flue pipe to the chimney
3.10 3.11 3.12 4 3.10 multi inlet arrangement
arrangement where two or more appliances situated in different spaces are connected to the chimney by individual connecting flue pipes
3.11 air duct
independent duct in a building or a structural part of a flue terminal conveying combustion air to a roomsealed appliance
3.12 pressure equalising opening
opening or duct that directly connects the air duct with the flue at its base
Symbols, terminology and Cinits are given to make the text of this standard understandable, although a part of them is already listed in part 1 of this standard series. Indices