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E93.1607.900 CB CH handleiding
40
9.10 Rookgas- en luchttoevoer -weerstandstabel
In het volgende gedeelte worden voor vijf kenmerkende rookgasuitlaat en luchtinlaatconfiguraties de maximale
lengten van de rechte pijpen berekend. Eerst worden alle weerstandswaarden voor componenten weergegeven
in de volgende tabel:
PARALLEL CB 85 CB 105 CB 125 CB 155
Ø
WEERSTAND
[Pa]
ROOKGAS
100
Rechte buis/m
2
.
8
4
.
0
6
.
0
45° bocht
6
.
4
9
.
0
13
.
6
90° bocht
10
.
2
14
.
5
21
.
9
Rookgasafvoer zeta=0.05
0
.
5
0
.
8
1
.
2
Rookgasafvoer zeta=1.0
10
.
8
15
.
3
23
.
0
Rookgasafvoer zeta=1.5
16
.
2
22
.
9
34
.
5
130
Rechte buis/m 0.7 1.0 1.5 2.2
45° bocht 1.3 1.8 2.7 4.0
90° bocht 3.0 4.3 6.4 9.5
Rookgasafvoer zeta=0.05 0.2 0.3 0.4 0.6
Rookgasafvoer zeta=1.0 3.6 5.1 7.7 11.4
Rookgasafvoer zeta=1.5 5.4 7.7 11.6 17.2
150
Rechte buis/m 0.4 0.6 0.9
1
.
3
45° bocht 0.7 0.9 1.4
2
.
1
90° bocht 1.6 2.2 3.3
4
.
9
Rookgasafvoer zeta=0.05 0.1 0.1 0.2
0
.
3
Rookgasafvoer zeta=1.0 2.0 2.8 4.3
6
.
3
Rookgasafvoer zeta=1.5 3.0 4.3 6.4
9
.
5
Dak terminal 3.4 4.8 7.3
10
.
8
verloopstuk 150 tot 130 2.1 3.0 4.5
6
.
6
LUCHTTOEVOER
100
Rechte buis/m 3.2
4.6
6.9
45° bocht 7.4
10.5
15.7
90° bocht 11.9
16.8
25.3
luchtinvoer zeta=1.0 12.5
17.7
26.7
130
Rechte buis/m 0.8 1.1 1.7 2.5
45° bocht 1.5 2.1 3.1 4.6
90° bocht 3.5 4.9 7.4 11.0
luchtinvoer zeta=1.0 4.2 5.9 9.0 13.3
150
Rechte buis/m 0.5 0.7 1.0
1
.
5
45° bocht 0.8 1.1 1.6
2
.
4
90° bocht 1.8 2.6 3.9
5
.
7
luchtinvoer zeta=1.0 2.3 3.3 5.0
7
.
3
LET OP: Deze tabel mag slechts gebruikt worden voor separate rookgasafvoer-
/luchttoevoersystemen en niet voor gemeenschappelijke rookgassystemen van
ketels in cascade.
* Reduceer nooit de buisdiameters t.o.v. de ketelaansluitingen
Waarden afgedrukt in grijs gelden voor buisdiameters groter dan de ketelaansluiting.
LET OP: Deze tabel mag slechts gebruikt worden voor separate rookgasafvoer-/luchttoevoersystemen en niet
voor gemeenschappelijke rookgassystemen van ketels in cascade.
Ketel
CB 85
CB
105
CB 125
CB 155
Ø mm
CONCENTRISCH
WEERSTAND
[Pa]
ROOKGAS
100/150
rechte buis/m
2
.
9
4
.
1
6
.
2
45° bocht
6
.
4
9
.
0
13
.
6
90° bocht
10
.
2
14
.
5
21
.
9
dak terminal
31
.
2
44
.
3
66
.
7
muur terminal
10
.
8
15
.
3
23
.
0
adapter
0
.
4
0
.
6
0
.
9
LUCHTTOE-
VOER
100/150
Rechte buis/m
9
.
2
13
.
1
19
.
7
45° bocht
8
.
1
11
.
4
17
.
2
90° bocht
11
.
7
16
.
6
25
.
1
dak terminal
43
.
3
61
.
4
92
.
4
muur terminal
43
.
3
61
.
4
92
.
4
adapter
39
.
2
55
.
6
83
.
8
ROOKGASUITLAAT
zeta=0
open uitlaat
zeta=0,05
conische uitlaat
H/D=1,0
zeta=1,0
H/D=0,5
zeta=1,5
LUCHTINLAAT
H/D=1,0
zeta=1,0
CONCENTRISCHE
ROOKGASUITLAAT
LUCHTINLAAT
DAK
MUUR
40


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