zvezek 1 - ANG.indd - Hidria

SLOT DIFFUSERS LD-13, LD-14 TECHNICAL DATA
Sound power level and pressure drop:
t
t
p (Pa)
200
100
50
20
10
8
6
4
3
2
1.5
1
LD 14/1
15
L wA (dB(A) )
20
25
30
35
100 150 200 300 400 500 700 1000
Q (m 3 /h)
40
45
500
50
1000
1500
2000
p (Pa)
200
100
50
20
10
8
6
4
3
2
1.5
1
LD 14/2
LwA (dB(A) )
15
20
25
30
100 150 200 300 400 500 700 1000
Q (m 3 /h)
35
40
45
500
50
1000
1500
2000
Correction factors applicable to LD-14/1
Type of discharge vertical horizontal
Flow rate control damper open closed open closed
L=500 x 1 x 1,81 x 0,76 x 1,31
L=1000 x 1 x 3,83 x 0,42 x 3,23
L=1500 x 1 x 5,80 x 0,28 x 5,11
L=2000 x 1 x 7,87 x 0,19 x 7,07
Correction factors applicable to LD-14/2
Type of discharge vertical horizontal
Flow rate control damper open closed open closed
L=500 x 1 x 2,11 x 0,53 x 1,59
L=1000 x 1 x 8,84 x 0,29 x 7,96
L=1500 x 1 x 15,36 x 0,20 x 14,14
L=2000 x 1 x 22,32 x 0,14 x 20,70
Example:
Q = 300 m 3 /h
L = 1000 mm
Δp t = 33 Pa (vertical; damper opened)
Δp t = 33 x 3,83 = 126,4 Pa (vertical; damper closed)
Δp t = 33 x 0,42 = 14,0 Pa (horizontal; damper opened)
Δp t = 33 x 3,23 = 107,0 Pa (horizontal; damper closed)
L WA = 38 dB(A)
Example:
Q = 300 m 3 /h
L = 500 mm
Δp t = 47 Pa (vertical; damper opened)
Δp t = 47 x 2,11 = 99,2 Pa (vertical; damper closed)
Δp t = 47 x 0,53 = 24,9 Pa (horizontal; damper opened)
Δp t = 47 x 1,59 = 74,7 Pa (horizontal; damper closed)
L WA = 36 dB(A)
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