NEW
www.stavoklima.eu
acoustic louvres
PHZe
New modelS: 200, 300, 400, 600 mm of depth
description and use:
bird protection grid in detail:
Acoustic louvres "PHZE" are made of plain galvanized steel or powder coated RAL (stainless steel or AlMg3 available upon reques). The louvres are filled with sound absorbing material covered with perforated metal plate for increased effectivity. There are 4 different depths available according to desired attenuation. The air inlets are equipped with bird protection grids as standard. Construction angle of the sound absorbing blades allows also the installation as an end piece of an air duct (direct installation or with a frame). Acoustic louvres are used for reduction of the noise comming out from various openings such as from engine rooms or noisy industrial areas.
dimensions (standard delivery): „a“ (width) [mm]: 200; 300; 400; 500; 630; 800; 1000; 1250; 1400; 1600; 1800; 2000; 2250; 2500
A+100
C
A
Bird protection grid
A
„c“ (depth) [mm]: 200; 300; 400; 600 Other dimensions available on demand.
B
B+100
„b“ (height) [mm]: 350; 400; 500; 630; 800; 1000; 1250; 1400; 1600; 1800; 2000; 2250; 2500
acoustic parameters and planning: The attenuating capacity of the acoustic louvre can be calculated in the sellection software . The louvre has to be calculated with respect to the air flow in the cross section in front of the louvre [AxB dimension], to the desired attenuation value [sound pressure value at the defined point] and to the noise source [sound capacity Lw(a)].
A
ŘEZ A-A
pcs
Dimension indicated as "A" and "B" are actually about 30mm smaller than the opening due to easy installation. (Example: For the duct of 1000x800mm acoustic louvres of the following dimensions will be delivered: "A" actual = 970mm, "B" actual = 770mm)
leVeliNg Screw detail (+frame)
filter adaPter eu3
iNSulatioN Izolační nástavec adaPter
Filtrační nástavec EU3
50
(á 20 mm)
min. 30 mm max. 500 mm
iNSulatioN adaPter + wall bracket Izolační nástavec + nástěnná konzola
30
50 BxA
BxA
BxA
BxA
CxD
50
50
Detail stavěcího šroubu ( + rámeček)
filter adaPter FiltračnímouNted) nástavec nástěnný EU3 (wall eu3
PHZE-KN
PHZe - NfN - c x d
PHZe - Nf - a x b
PHZ - NFN - C x D
wall bracket
PHZe - Ni - a x b / xx PHZ - NI - A x B / xx
PHZ - NF - A x B
back-to-back
coNtrol damPer
Spojování žaluzií PHZ za mouNtiNg sebou
Regulační klapka Nástěnná konzola
včetně rámečku PHZ - NI - A x B / xx + KN
(B-50) x (A-70)
ALT2
BxA
200
300
Number Počet konzol: Počet konzol: of brackets:
louVre couPliNg Side-by--Side witH frameS Spojování žaluzií PHZ vedle sebe
Spojka PHZE-V backplate PHZE-V
ALT1 200
PHZe - Ni - a x b / xx + kN
300
do 1000 mm - 2 pcs ks od 1000 mm - do 2000 mm - 3 ks od 2000 mm - do 3000 mm - 4 pcs ks
125 (115)
covering backplate
backplate PHZE - H
atypical frame 600
PHZ - KN
PHZe - kN
PHZe - rk - a x b
PHZe - SPV
PHZE - SPH PHZe - SPH
PHZ - RK A x B
PHZE
1
PHZ - SPV
Technical Data
"200" mm dePtH
Louvre weight [kg] and free cross section [%] Weight Free cross PHZE 200 per 1m2 section* Louvre Height [mm] kg % 350 46 19 400 46 19 500 40 32 630 37 38 800 37 38 1000 37 38 1250 33 41 1400 33 41 1600 33 41 1800 33 41 2000 33 41 2250 33 41 2500 33 41 * valid for the whole connection dimension (AxB)
calculation: lv = 10log (10
lpv/10
Lpv = Lw1 + 10 log
Q 2 (4x π xR )
Characteristic A A B C C C D D D D D D D
200 Lv = desired accoustic pressure at defined point Lpv = noise dispersion in the air duct reduced by the attenuation "D" of the acoustic louvre and routing Lpž = self noise of the louvre dL = correction of reverberation noise in the outside (constant = 3)
lpž/10
) + dl
+ 10
Lpž = Lwž (A) + 10 log
Q 2 (4x π xR )
Lw1 = sound power lever of the system "dB(A)" LwA = sound power of the noise source "dB(A)" Dt = attenuation of the transmission D = louvre attenuation
Lw1 = LwA - Dt - D
Lwž(A)= level of the louvre acoustic output at air speed given just before the louvre R = distance of the point from the core of the louvre "m" Q = directional coefficient (determined by the designer - most common value is 2)
Lwž(A) = Lw (diagram) + ∆ Lw + Lwa + Lwa oct (for the relevant frequency) Louvre attenuation D [dB]
PHZE 200 attenuation [dB]
63 4
125 6
Correction of the louvre self-noise according to its surface Δ Lw [dB]
frequency [Hz] 250 500 1000 2000 4000 8000 7 12 12 13 14 14
PHZE 200
0,3 0,5 correction [dB] -5,2 -3
surface of the louvre m2 0,7 0,8 1 1,5 2 4 -1,5 -1 0 1,8 3 6
6 7,8
10 10
Correction of the louvre self-noise according to the way of air flow and type of connection lwa oct - frequencies
F-OUT
F-IN
K-IN
F-IN F-OUT K-IN K-OUT
K-OUT
125 5 3 5 1
250 7 3 5 3
500 -2 -4 -3 -2
1000 -5 -5 -5 -5
2000 -12 -10 -7 -9
4000 -22 -19 -14 -12
8000 -29 -24 -20 -19
diagram of the self noise lw due to the air flow [db]
200
self noise ofhluk the louvre vlastní žaluzieLw Lw [dB]
pressure loss [Pa] tlaková ztráta
diagram of the pressure loss [Pa]
63 -3 -2 4 6
175 A
150
B
125
C
100
D
90 80 70 B 60
A
D
50
75
40
50
30
25
20
0
C
0 0
0,5
1
1,5
2
2,5
3
3,5
4
4,5
0
airrychlost velocityvprofile profilu AxB AxB [m/s] [m/s]
0,5
1
1,5
2
2,5
3
3,5
4
4,5
airrychlost velocityv profile [m/s] profilu AxB [m/s]
Correction of the pressure loss by the way of air flow and type of connection
Correction according to the way of air flow and type of connection lwa
type of louvre 200
type of louvre 200
PHZE
F-IN 0,9
F-OUT 0,98
K-IN 0,9
K-OUT 1
2
F-IN -4
F-OUT -3
K-IN -3
K-OUT 0
Technical Data
"300" mm dePtH
Louvre weight [kg] and free cross section [%] Weight Free cross PHZE 300 per 1m2 section* Louvre Height [mm] kg % 350 58 19 400 58 19 500 55 32 600 47 38 800 47 38 1000 47 38 1250 43 41 1400 43 41 1600 43 41 1800 43 41 2000 43 41 2250 43 41 2500 43 41 * valid for the whole connection dimension (AxB)
calculation: lv = 10log (10
lpv/10
Q 2 (4x π xR )
Lpv = Lw1 + 10 log
Characteristic A A B C C C D D D D D D D
300 Lv = desired accoustic pressure at defined point Lpv = noise dispersion in the air duct reduced by the attenuation "D" of the acoustic louvre and routing Lpž = self noise of the louvre dL = correction of reverberation noise in the outside (constant = 3)
lpž/10
) + dl
+ 10
Lpž = Lwž (A) + 10 log
Q 2 (4x π xR )
Lw1 = sound power lever of the system "dB(A)" LwA = sound power of the noise source "dB(A)" Dt = attenuation of the transmission D = louvre attenuation
Lw1 = LwA - Dt - D
Lwž(A)= level of the louvre acoustic output at air speed given just before the louvre R = distance of the point from the core of the louvre "m" Q = directional coefficient (determined by the designer - most common value is 2)
Lwž(A) = Lw (diagram) + ∆ Lw + Lwa + Lwa oct (for the relevant frequency) Louvre attenuation D [dB]
PHZE 300 attenuation [dB]
63 7
125 8
Correction of the louvre self-noise according to its surface Δ Lw [dB]
frequency [Hz] 250 500 1000 2000 4000 8000 8 17 18 19 18 19
surface of the louvre m2 0,7 0,8 1 1,5 2 4 -1,5 -1 0 1,8 3 6
PHZE 300
0,3 0,5 correction [dB] -5,2 -3
6 7,8
10 10
Correction of the louvre self-noise according to the way of air flow and type of connection lwa oct - frequencies
F-OUT
F-IN
K-IN
F-IN F-OUT K-IN K-OUT
K-OUT
125 5 3 5 1
250 7 3 5 3
500 -2 -4 -3 -2
1000 -5 -5 -5 -5
2000 -12 -10 -7 -9
4000 -22 -19 -14 -12
8000 -29 -24 -20 -19
diagram of the self noise lw due to the air flow [db]
200
vlastní žaluzieLw Lw [dB] self noise ofhluk the louvre
pressure loss [Pa] tlaková ztráta
diagram of the pressure loss [Pa]
63 -3 -2 4 6
175 150
C
125 A
D
B
100
90 80 70
B D
60 50
75
40
50
30
25
20
0
C
A
0 0
0,5
1
1,5
2
2,5
3
3,5
4
4,5
0
air rychlost velocityvprofile profiluAxB AxB[m/s] [m/s]
0,5
1
1,5
2
2,5
3
3,5
4
4,5
airrychlost velocityv profile profilu AxB [m/s] [m/s]
Correction of the pressure loss by the way of air flow and type of connection
Correction according to the way of air flow and type of connection lwa
type of louvre 300
type of louvre 300
PHZE
F-IN 0,9
F-OUT 0,98
K-IN 0,9
K-OUT 1
3
F-IN -4
F-OUT -3
K-IN -3
K-OUT 0
Technical Data
"400" mm dePtH
Louvre weight [kg] and free cross section [%] Weight Free cross PHZE 400 per 1m2 section* Louvre Height [mm] kg % 350 90 25 400 90 25 500 90 25 630 83 36 800 83 36 1000 83 36 1250 78 41 1400 78 41 1600 78 41 1800 78 41 2000 78 41 2250 78 41 2500 78 41 * valid for the whole connection dimension (AxB)
calculation: lv = 10log (10
lpv/10
Lpv = Lw1 + 10 log
Q 2 (4x π xR )
Characteristic A A A B B B C C C C C C C
400 Lv = desired accoustic pressure at defined point Lpv = noise dispersion in the air duct reduced by the attenuation "D" of the acoustic louvre and routing Lpž = self noise of the louvre dL = correction of reverberation noise in the outside (constant = 3)
lpž/10
) + dl
+ 10
Lpž = Lwž (A) + 10 log
Q 2 (4x π xR )
Lw1 = sound power lever of the system "dB(A)" LwA = sound power of the noise source "dB(A)" Dt = attenuation of the transmission D = louvre attenuation
Lw1 = LwA - Dt - D
Lwž(A)= level of the louvre acoustic output at air speed given just before the louvre R = distance of the point from the core of the louvre "m" Q = directional coefficient (determined by the designer - most common value is 2)
Lwž(A) = Lw (diagram) + ∆ Lw + Lwa + Lwa oct (for the relevant frequency) Louvre attenuation D [dB]
PHZE 400 attenuation [dB]
63 15
125 10
Correction of the louvre self-noise according to its surface Δ Lw [dB]
frequency [Hz] 250 500 1000 2000 4000 8000 12 22 23 23 23 24
PHZE 400
0,3 0,5 correction [dB] -5,2 -3
surface of the louvre m2 0,7 0,8 1 1,5 2 4 -1,5 -1 0 1,8 3 6
6 7,8
10 10
Correction of the louvre self-noise according to the way of air flow and type of connection lwa oct - frequencies
F-OUT
F-IN
K-IN
F-IN F-OUT K-IN K-OUT
K-OUT
125 9 9 3 2
250 6 6 -1 -2
500 -1 -1 -5 -5
1000 -2 -2 -5 -8
2000 -6 -6 -7 -8
4000 -9 -9 -11 -9
8000 -20 -20 -17 -14
diagram of the self noise lw due to the air flow [db]
200
self noise ofhluk the louvre vlastní žaluzieLw Lw [dB]
pressure loss [Pa] tlaková ztráta
diagram of the pressure loss [Pa]
63 0 0 2 2
175 150
A
C
B
125 100
90
B
A
70 60 50
75
40
50
30
25
20
0
C
80
0 0
0,5
1
1,5
2
2,5
3
3,5
4
4,5
0
airrychlost velocityvprofile profiluAxB AxB[m/s] [m/s]
0,5
1
1,5
2
2,5
3
3,5
4
4,5
airrychlost velocityv profile [m/s] profilu AxB [m/s]
Correction of the pressure loss by the way of air flow and type of connection
Correction according to the way of air flow and type of connection lwa
type of louvre 400
type of louvre 400
PHZE
F-IN 0,92
F-OUT 0,92
K-IN 0,9
K-OUT 1
4
F-IN 0
F-OUT -3
K-IN -3
K-OUT -4
Technical Data
"600" mm dePtH
Louvre weight [kg] and free cross section [%] Weight Free cross PHZE 600 per 1m2 section* Louvre Height [mm] kg % 350 116 19 400 116 19 500 110 32 630 94 38 800 94 38 1000 94 38 1250 86 41 1400 86 41 1600 86 41 1800 86 41 2000 86 41 2250 86 41 2500 86 41 * valid for the whole connection dimension (AxB)
calculation: lv = 10log (10
lpv/10
Q 2 (4x π xR )
Lpv = Lw1 + 10 log
Characteristic A A B C C C D D D D D D D
600 Lv = desired accoustic pressure at defined point Lpv = noise dispersion in the air duct reduced by the attenuation "D" of the acoustic louvre and routing Lpž = self noise of the louvre dL = correction of reverberation noise in the outside (constant = 3)
lpž/10
) + dl
+ 10
Lpž = Lwž (A) + 10 log
Q 2 (4x π xR )
Lw1 = sound power lever of the system "dB(A)" LwA = sound power of the noise source "dB(A)" Dt = attenuation of the transmission D = louvre attenuation
Lw1 = LwA - Dt - D
Lwž(A)= level of the louvre acoustic output at air speed given just before the louvre R = distance of the point from the core of the louvre "m" Q = directional coefficient (determined by the designer - most common value is 2)
Lwž(A) = Lw (diagram) + ∆ Lw + Lwa + Lwa oct (for the relevant frequency) Louvre attenuation D [dB]
PHZE 600 attenuation [dB]
63 7
125 9
Correction of the louvre self-noise according to its surface Δ Lw [dB]
frequency [Hz] 250 500 1000 2000 4000 8000 12 26 27 25 27 29
PHZE 600
0,3 0,5 correction [dB] -5,2 -3
surface of the louvre m2 0,7 0,8 1 1,5 2 4 -1,5 -1 0 1,8 3 6
6 7,8
10 10
Correction of the louvre self-noise according to the way of air flow and type of connection lwa oct - frequencies
F-OUT
F-IN
K-IN
F-IN F-OUT K-IN K-OUT
K-OUT
200 175 A
150
125 9 9 3 2
250 6 6 -1 -2
500 -1 -1 -5 -5
1000 -2 -2 -5 -8
2000 -6 -6 -7 -8
4000 -9 -9 -11 -9
8000 -20 -20 -17 -14
diagram of the self noise lw due to the air flow [db] vlastní žaluzieLw Lw [dB] self noise ofhluk the louvre
pressure loss [Pa] tlaková ztráta
diagram of the pressure loss [Pa]
63 0 0 2 2
B
C
D
125 100
90
A
70
C B
60 50
75
40
50
30
25
20
0
D
80
0 0
0,5
1
1,5
2
2,5
3
3,5
4
4,5
0
air rychlost velocity vprofile profiluAxB AxB[m/s] [m/s]
0,5
1
1,5
2
2,5
3
3,5
4
4,5
airrychlost velocityv profile profilu AxB [m/s] [m/s]
Correction of the pressure loss by the way of air flow and type of connection
Correction according to the way of air flow and type of connection lwa
type of louvre 600
type of louvre 600
PHZE
F-IN 0,92
F-OUT 0,92
F-IN 0,9
F-OUT 1
5
K-OUT 0
K-IN -3
F-OUT -3
F-IN -4
Technical Data
example of calculation:
calculation: lv = 10log (10lp /10 + 10lp /10) + dl
metHodicS of deSigNiNg acouStic louVer
v
Lpv = Lw1 + 10 log
ž
Q 2 (4x π xR )
Lpž = Lwž (A) + 10 log
Q 2 (4x π xR )
Lw1 = LwA - Dt - D R = distance of
the point from
Lv = desired accoustic pressure at defined point Lpv = noise dispersion in the air duct reduced by teh attenuation "D" of the acoustic louvre and routing Lpž = self noise of the louvre dL = correction of reverberation noise in the outside (constant = 3)
the core of the
Lwž(A) = Lw (diagram) + ∆ Lw + Lwa + Lwa oct
louvre (m)
Lw1 = sound power lever of the system "dB(A)" LwA = sound power of the noise source "dB(A)" Dt = attenuation of the transmission D = louvre attenuation
Lwž(A)= sound power level of the louvre at defined air stream speed right in front of the louvre R = distance of the point from the core of the louvre "m" Q = directional coefficient (determined by the designer - most common value is 2)
example of calculation: To design the louvre based on the parameters of the source of the noise in order to achieve the value of 60 dB(A) in distance of 3m from the louvre. Depth of louvre 300 MM - selected size 1000/1000 MM Air mass 5500 m3/h Type of installation K-OUT Directional coeficient of sound reflection Q=2
Calculation 63
125
250
500
1000
2000
4000
8000
LwA - Source of the noise
79
80
81
81
79
77
72
66
Dt - attenuation of the transmittion
1,8
800 mm m 1,880
0,9
0,5
0,5
0,5
0,5
0,5
17
18
19
18
19
D - attenuation of the louvre
7
630 mm
8
8 22mm
Lwž(A) - self noise of the louvre
46,5
41,5
43,5
38,5
35,5
31,5
28,5
25
tot
lv - acoustic pressure [db(a)]
52,7
52,7
54,6
46
43
40
36
29
58,7
Pressure loss according to the diagram: 17 Pa x correction for K-OUT
example of calculation in the software
PHZE
6
Technical Data
calculatioN Software In order to simplify the selection of the louvres and other insulating products based on the complex noise situation and the source of the noise, the manufacturer created the computer software
Cell silencers JTHE VLASTNÍ HLUK TLUMIČŮ HLUKU Vlastní hluk tlumičů Glideflow je s porovnáním s tlumiči standardní konstrukce výrazně nižší, který je zajištěn díky speciální aerodynamickému tvaru tlumiče. Vlastní hluk tlumičů hluku je měřen dle CSN ISO 7235 akreditovanou akustickou laboratoří. Uvedená data jsou platná pro 1m2 plochy.
MONTÁŽ TLUMIČŮ DO POTRUBÍ - SPOJOVÁNÍ A KOTVENÍ TLUMIČE Vlastní hluk tlumiče Lw
čelní rychlost m/s
63
125
250
500
2000
4000
8000
3
34
31
28
22
20
16
12
<10
<10
5
46
43
38
32
29
26
22
19
16
32
1000
7
54
50
46
39
36
32
29
27
24
9
60
55
52
44
42
38
34
32
29
11
66
60
56
49
47
42
38
36
33
13
69
64
61
54
51
47
43
40
15
73
68
65
57
54
50
46
43
41
17
77
71
68
60
57
53
50
47
44
19
81
74
70
63
59
55
51
49
46
37
KOREKCE pro (A) 32 -39
63
125
-26
-16
250
500
-9
-3
1000
2000
0
1
4000
8000
1
-1
dB
0,2
0,4
0,6
-7
-4
-3
0,8
1,0
-1
0
2,0
3,0
4,0
3
5
6
6,0
8,0
7
9
PŘÍKLAD VÝPOČTU Příklad: vzt jednotka 9000 m3/h , potrubí -rychlost 5 m/s, navrhnuté tlumiče GDE 200 Požadavek navrhnout tlumič, aby za tlumičem byl hluk 65 dB.
Vzt jednotka – zdroj hluku Lw (A)
www.stavoklima.eu
Utlum tlumiče
32
63
61
68
125
250
500
1000
2000
4000
8000 60
75
77
74
69
65
64
17
38
43
46
37
23
19
26
22
19
16
30
29
41
41
2
7
Vlastní hluk tlumiče
46
43
38
32
29
Výsledek za tlumičem hluku
59
61
58
40
33
GS GCS
U tlumičů hluku vyšších než 1000 mm je nutné provést osazení tlumiči dílčí výšky a provést spojení pomocí čelních a bočních spojek. Čelní spojka – GCS 100, 200. Boční spojka – GS universální pro velikost 100 a 200 mm.
tlumiče umístěny v potrubí od výrobce
PGDE
-
Typ osazeného tlumiče GD - kulisa s rezonátory GDE - kulisa absorbční GDH - kulisa s rezonátory hyg. Provedení GDHE - kulisa absorbční hygienické provedení GDX - jiné provedení www.stavoklima.eu (teplotní odolnost, nerez. Provedení atd.)
900
/
900 Šířka potrubí MM
500
-1000
500 Výška potrubí MM
1000 Délka potrubí MM
/
GD
-
200 šířka 100 200
Jádrové tlumiče hluku
JTH
/
500 výška 100-1000
/
Deskové tlumiče hluku Glideflow - GDE
1000
Pro účely snadného návrhu a výběru vhodných tlumičů hluku v závislosti na zdroji hluku a komplexní hlukové situace v potrubí byl vyvinut výrobcem speciální program pro výpočet -
Kontakt:
vertikálně správné umistění deskových tlumičů hluku
N3 N3 Počet tlumičů umístěných v potrubí
délka 500-2500
JTHE horizontálně deskové tlumiče hluku GDE nelze umisťovat horizontálně
-
www.stavoklima.eu
Typ tlumiče GD - kulisa s rezonátory GDE - kulisa absorbční GDH - kulisa s rezonátory hyg. Provedení GDHE - kulisa absorbční hygienické provedení GDX - jiné provedení (teplotní odolnost, nerez. Provedení atd.)
UMÍSTĚNÍ TLUMIČŮ HLUKU DO POTRUBÍ NEBO STAVEBNÍHO OTVORU
T200 T200 Šířka osazeného tlumiče
VÝPOČETNÍ PROGRAM
KLÍČ PRO TLUMIČE:
TOT hluk za tlumičem – 64 dB(A) => Tlumič splnuje požadovaný výsledek
Jádrové tlumiče hluku
Montáž tlumičů hluku do potrubí se provádí samořeznými šrouby nebo nýty. Při umístování tlumiče je nutno dbát na přesném rozmístění a dodržení vzdálenosti mezi tlumiči.
KLÍČ PRO TLUMIČE INTEGROVANÉ DO POTRUBÍ:
KOREKCE pro plochu potrubí dB AxB (m2)
fm v HZ
Panel silencers Glideflow - GDE
GLIDEFLOW
Cell silencers JTH
STAVOKLIMA V.O.S. HORNÍ 22 • CZ-370 04 • ČESKÉ BUDĚJOVICE tel.: +420 387 428 990, +420 387 438 912 fax: +420 387 001 950 e-mail:
[email protected] http://www.stavoklima.eu
LW dB p P kW
LW dB p P kW
Technické změny vyhrazeny I www.stavoklima.eu
KEY FOR AN ORDER:
-
1250
/
1000
/
200
„Width“
„Height“
„Depth“
200 ÷ 2500 mm
350 ÷ 2500 mm
200 mm 300 mm 400 mm 600 mm
Representative:
/
RAL9010
/
„Colour finish“
„Material finish“
standard RAL 9010 (white) All RAL range
XX
Zn - zinc-coated metal sheet Al - sheet aluminium Ni - stainless steel XX - different finish (yellow brass, copper, etc.)
StaVoklima V.o.S. HORNÍ 22 • CZ-370 04 • ČESKÉ BUDĚJOVICE tel.: +420 387 001 946, +420 387 001 931 fax: +420 387 001 950 e-mail:
[email protected] http://www.stavoklima.eu
PHZE 02/11-An
PHZE