7.2.2 MCD120E
BCD
1
2
3
4
3
2
4
1
3
2
4
1
3
2
4
1
A
SetupA:Allductsconnected 1. Ductworkfordryair
SetupB:Processinletnotconnectedtoduct 2. Ductworkforprocessair
SetupC:Reactivationinletnotconnectedtoduct 3. Ductworkforreactivationair
SetupD:Reactivationandprocessinletnotconnectedto duct 4. Ductworkforwetair
Noise to r oom
CorrectionKokdBatISO-bandcentrefrequency,Hz
Setup
Lp(A)100m
2
Lwt
(dB)
63 125 250 500 1000 2000 4000 8000
A 79 101
-7
-3
-7
-12 -13 -17 -18 -18
B 81 102 -8 -4
-7 -7
-14 -19 -19 -18
C
79 101 -7 -3 -8 -13 -13 -18 -19 -18
D 81 102 -7 -4 -8 -8 -14 -17 -20 -18
Table7.3Noisetoroom
Lp(A) 100 m
2
= Rated pressure sound level at 100 m
2
room abs o rption (A–weig hted).
Lwt = Total sound power level (db) (rel. 10–12 W)
Kok = Correction for calculating Lw (Lw = Lwt + Kok)
Noise in ducts
Corre c tion Kok dB at IS O-band c e ntre frequency,Hz
Ductwork
Lwt(dB) 63 125 250 500 100 0 2000 4000 8000
1. Dry air 112
-7
-6 -3 -9 -18 -24 -30 -37
2. Processair 95 -2
-7
-12 -21 -27 -33 -40 -50
3. Reactivationair 91 -1 -8 -22 -24 -30 -34 -39 -52
4. Wetair 103 -6 -4 -8 -29 -14 -17 -24 -29
Table7.4Noiseinducts
190TEN–106 5–J1408
Te chnicalspecification
39
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