12
16
24
29
29
28
26
23
9
25
33
38
38
37
35
32
18
32
40
45
45
44
42
39
25
38
46
51
51
50
48
45
31
42
50
55
55
54
52
49
35
46
54
59
59
58
56
53
39
49
57
62
62
61
59
56
42
50
58
63
63
62
60
57
43
53
61
66
66
65
63
60
46
55
63
68
68
67
65
62
48
57
65
70
70
69
67
64
50
w - air velocity in the free cross section (AxB) - i.e. before blades
f - frequency of octave band
Sound power level corrected with filter A
Δp
s
- static pressure drop
w - air velocity in the free cross section (AxB)
B - height of the damper
0
10
20
30
40
50
60
70
80
90
100
110
120
2
3
4
5
6
7
8
9
10
11
12
B=200/400/600/800/1000/1200mm
B=250mm
B=300/450mm
B=350/500/700/900/1100mm
w (m/s)
Δ
p
s
(Pa)
Summary of Contents for SEDS-L
Page 1: ......
