Catalogue PHZE ENG

8/10/2019 Catalogue PHZE ENG

1/8

www.stavoklima.eu

Acoustic louvres

PHZE

N

NEW MODELS:

200, 300, 400, 600 mm of depth


2/8

1PHZE Technical Data

A+100

B + 1 0 0

B

A

A

A

C

EZ A-A

200

3 0 0

Poet konzol: do 1000 mm - 2 ksod 1000 mm - do 2000 mm - 3 ksod 2000 mm - do 3000 mm - 4 ks

ALT1 ALT2

300

2 0 0

WALL BRACKET

PHZE - KN

( B - 5

0 ) x

( A - 7

0 )

125 (115)

B x

A

CONTROL DAMPER

PHZE - RK - A x B

600

Spojka PHZE-V

BACK-TO-BACKMOUNTING

PHZE - SPV

backplate PHZE - H

covering backplate

atypical frame

LOUVRE COUPLINGSIDE-BY--SIDE WITH FRAMES

PHZ - SPV

LEVELING SCREW

DETAIL (+FRAME)

50

5 0

B x

A

C x

D

FILTER ADAPTER

(WALL MOUNTED) EU3

PHZE - NFN - C x D

30 B x

A

FILTER

ADAPTER EU3

PHZE - NF - A x B

max. 500 mm

5 0

min. 30 mm( 20 mm)

B x

A

INSULATION

ADAPTER

PHZE - NI - A x B / xx

5 0

B x

A

PHZE-KN

PHZE - NI - A x B / xx + KN

INSULATION ADAPTER

+ WALL BRACKET

Bird protectiongrid

Description and use:

Acoustic louvres "PHZE" are made of plain galvanized steel or powder coated RAL (stainless steelor AlMg3 available upon reques). The louvres are lled with sound absorbing material covered with per-forated metal plate for increased effectivity. There are 4 different depths available according to desiredattenuation. 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 anair duct (direct installation or with a frame).

Acoustic louvres are used for reduction of the noise comming out from various openings such as fromengine rooms or noisy industrial areas.

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)

backplate PHZE-V

Poet konzol:

pcs

pcs

pcs

Dimensions (standard delivery): A (width) [mm]:200; 300; 400; 500; 630; 800; 1000; 1250; 1400; 1600; 1800; 2000; 2250; 2500

B (height) [mm]:350; 400; 500; 630; 800; 1000; 1250; 1400; 1600; 1800; 2000; 2250; 2500

C (depth) [mm]:200; 300; 400; 600

Other dimensions available on demand.

Acoustic parameters and planning:The attenuating capacity of the acoustic louvre can be calculated in thesellection software . The louvre has to be calculated with respectto the air ow in the cross section in front of the louvre [AxB dimension],to the desired attenuation value [sound pressure value at the denedpoint] and to the noise source [sound capacity Lw(a)].

Bird protection gridin detail:

Numberof brackets:


3/8


2 0 0

"200" MM DEPTH

Louvre attenuation D [dB]

PHZE 200frequency [Hz]

63 125 250 500 1000 2000 4000 8000attenuation [dB] 4 6 7 12 12 13 14 14

Correction of the louvre self-noise according to its surface Lw [dB]

PHZE 200surface of the louvre m 2

0,3 0,5 0,7 0,8 1 1,5 2 4 6 10correction [dB] -5,2 -3 -1,5 -1 0 1,8 3 6 7,8 10

Correction of the pressure loss by the way of air flow and type of connectiontype of louvre F-IN F-OUT K-IN K-OUT

200 0,9 0,98 0,9 1

Correction according to the way of air flow and type of connection Lw atype of louvre F-IN F-OUT K-IN K-OUT

200 -4 -3 -3 0

Louvre weight [kg] and free cross section [%]

PHZE 200 Weightper 1m 2Free crosssection* Characteristic

Louvre Height [mm] kg %350 46 19 A400 46 19 A500 40 32 B630 37 38 C800 37 38 C

1000 37 38 C

1250 33 41 D1400 33 41 D1600 33 41 D1800 33 41 D2000 33 41 D2250 33 41 D2500 33 41 D

* valid for the whole connection dimension (AxB)

Correction of the louvre self-noise according to the wayof air flow and type of connection Lw a oct - frequencies

63 125 250 500 1000 2000 4000 8000F-IN -3 5 7 -2 -5 -12 -22 -29

F-OUT -2 3 3 -4 -5 -10 -19 -24K-IN 4 5 5 -3 -5 -7 -14 -20

K-OUT 6 1 3 -2 -5 -9 -12 -19F-IN F-OUT K-IN K-OUT

0

25

50

75

100

125

150

175

200

0 0,5 1 1,5 2 2,5 3 3,5 4 4,5

t l a k o v z t r t a [ P a ]

rychlost v profilu AxB [m/s]

A B

C

D

0

20

30

40

50

60

70

80

90

0 0,5 1 1,5 2 2,5 3 3,5 4 4,5

v l a s t n h l u k a l u z i e L w

[ d B ]


A

B

C

D

Diagram of the pressure loss [Pa] Diagram of the self noise Lw due to the air flow [dB]

Lw (A) = Lw (diagram) + Lw + Lw a + Lw a oct (for the relevant frequency)

Lv = desired accoustic pressure at defined pointLpv = noise dispersion in the air duct reduced by the attenuation "D" of the acoustic louvre and routingLp = self noise of the louvredL = correction of reverberation noise in the outside (constant = 3)

Lw 1 = sound power lever of the system "dB(A)"Lw A = sound power of the noise source "dB(A)"Dt = attenuation of the transmission

D = louvre attenuation

Lw (A)= level of the louvre acoustic output at air speed given just before the louvreR = distance of the point from the core of the louvre "m"Q = directional coefficient (determined by the designer - most common value is 2)

Lw 1 = Lw A - Dt - D

Calculation: Lv = 10log (10 Lpv /10 + 10Lp /10) + dL

Lpv= Lw 1 + 10 logQ

(4x xR2)Q

(4x xR2)Lp= Lw (A) + 10 log

air velocity prole AxB [m/s]air velocity prole AxB [m/s]

s e l f n o i s e o f t h e l o u v r e L w

p r e s s u r e l o s s


4/8


"300" MM DEPTH



63 125 250 500 1000 2000 4000 8000attenuation [dB] 7 8 8 17 18 19 18 19



0,3 0,5 0,7 0,8 1 1,5 2 4 6 10correction [dB] -5,2 -3 -1,5 -1 0 1,8 3 6 7,8 10


300 0,9 0,98 0,9 1


300 -4 -3 -3 0




1000 47 38 C

1250 43 41 D1400 43 41 D1600 43 41 D1800 43 41 D2000 43 41 D2250 43 41 D2500 43 41 D



63 125 250 500 1000 2000 4000 8000F-IN -3 5 7 -2 -5 -12 -22 -29

F-OUT -2 3 3 -4 -5 -10 -19 -24K-IN 4 5 5 -3 -5 -7 -14 -20

K-OUT 6 1 3 -2 -5 -9 -12 -19F-IN F-OUT K-IN K-OUT

0

25

50

75

100

125

150

175

200

0 0,5 1 1,5 2 2,5 3 3,5 4 4,5



A B

C

D

0

20

30

40

50

60

70

80

90

0 0,5 1 1,5 2 2,5 3 3,5 4 4,5


[ d B ]


A

B

C

D








Calculation: Lv = 10log (10 Lpv /10 + 10Lp /10 ) + dL

Lpv= Lw 1 + 10 logQ

(4x xR2)Q


3 0 0





5/8


"400" MM DEPTH



63 125 250 500 1000 2000 4000 8000attenuation [dB] 15 10 12 22 23 23 23 24



0,3 0,5 0,7 0,8 1 1,5 2 4 6 10correction [dB] -5,2 -3 -1,5 -1 0 1,8 3 6 7,8 10


400 0,92 0,92 0,9 1


400 0 -3 -3 -4



Louvre Height [mm] kg %350 90 25 A400 90 25 A500 90 25 A630 83 36 B800 83 36 B

1000 83 36 B

1250 78 41 C1400 78 41 C1600 78 41 C1800 78 41 C2000 78 41 C2250 78 41 C2500 78 41 C



63 125 250 500 1000 2000 4000 8000F-IN 0 9 6 -1 -2 -6 -9 -20

F-OUT 0 9 6 -1 -2 -6 -9 -20K-IN 2 3 -1 -5 -5 -7 -11 -17

K-OUT 2 2 -2 -5 -8 -8 -9 -14F-IN F-OUT K-IN K-OUT

0

25

50

75

100

125

150

175

200

0 0,5 1 1,5 2 2,5 3 3,5 4 4,5



A B C

0

20

30

40

50

60

70

80

90

0 0,5 1 1,5 2 2,5 3 3,5 4 4,5


[ d B ]

r chlost v rofilu AxB m/s

A B

C


4 0 0








Lpv= Lw 1 + 10 logQ

(4x xR2)Q






6/8


"600" MM DEPTH



63 125 250 500 1000 2000 4000 8000attenuation [dB] 7 9 12 26 27 25 27 29



0,3 0,5 0,7 0,8 1 1,5 2 4 6 10correction [dB] -5,2 -3 -1,5 -1 0 1,8 3 6 7,8 10

Correction of the pressure loss by the way of air flow and type of connectiontype of louvre F-IN F-OUT F-IN F-OUT

600 0,92 0,92 0,9 1

Correction according to the way of air flow and type of connection Lw atype of louvre K-OUT K-IN F-OUT F-IN

600 0 -3 -3 -4




1000 94 38 C

1250 86 41 D1400 86 41 D1600 86 41 D1800 86 41 D2000 86 41 D2250 86 41 D2500 86 41 D



63 125 250 500 1000 2000 4000 8000F-IN 0 9 6 -1 -2 -6 -9 -20

F-OUT 0 9 6 -1 -2 -6 -9 -20K-IN 2 3 -1 -5 -5 -7 -11 -17

K-OUT 2 2 -2 -5 -8 -8 -9 -14F-IN F-OUT K-IN K-OUT

0

25

50

75

100

125

150

175

200

0 0,5 1 1,5 2 2,5 3 3,5 4 4,5



A B C D

0

20

30

40

50

60

70

80

90

0 0,5 1 1,5 2 2,5 3 3,5 4 4,5


[ d B ]

r chlost v rofilu AxB m/s

A

B

C

D


6 0 0








Lpv= Lw 1 + 10 logQ

(4x xR2)Q






7/8

R = d i s t anc e o f t he po int f r o m t he c o r e o f t he l o uv r e (m)


Example of calculation:

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 distanceof 3m from the louvre.Depth of louvre 300 MM - selected size 1000/1000 MM Air mass 5500 m3 /hType of installation K-OUT Directional coeficient of sound reflection Q=2

Pressure loss according to the diagram: 17 Pa x correction for K-OUT

Calculation63 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 1,8 0,9 0,5 0,5 0,5 0,5 0,5

D - attenuation of the louvre 7 8 8 17 18 19 18 19

Lw(A) - self noise of the louvre 46,5 41,5 43,5 38,5 35,5 31,5 28,5 25

Lv - acoustic pressure [dB(A)] 52,7 52,7 54,6 46 43 40 36 29

TOT

58,7


Lw (A) = Lw (diagram) + Lw + Lw a + Lw a oct

Calculation: Lv = 10log (10Lpv /10 + 10Lp /10) + dL

Lpv= Lw 1 + 10 logQ

(4x xR2)

Q(4x xR2)

Lp= Lw (A) + 10 log

METHODICS OF DESIGNING ACOUSTIC LOUVER

Example of calculationin the software

Lv = desired accoustic pressure at defined pointLpv = noise dispersion in the air duct reduced by teh attenuation "D"

of the acoustic louvre and routingLp = self noise of the louvredL = correction of reverberation noise in the outside (constant = 3)

Lw 1 = sound power lever of the system "dB(A)"Lw A = sound power of the noise source "dB(A)"Dt = attenuation of the transmissionD = louvre attenuation

Lw (A)= sound power level of the louvre at defined air streamspeed 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)


8/8

P H Z E 0 2 / 1 1 - A

n

STAVOKLIMA V.O.S.HORN 22 CZ-370 04 ESK BUDJOVICEtel.: +420 387 001 946, +420 387 001 931fax: +420 387 001 950e-mail: [email protected]://www.stavoklima.eu

Representative:

KEY FOR AN ORDER:

Width 200 2500mm

Height 350 2500mm

Depth 200 mm

300 mm

400 mm

600 mm

Colournish

standardRAL 9010

(white) All RAL range

Material nish

Zn - zinc-coated metalsheet

Al - sheet aluminium

Ni - stainless steel

XX - different nish(yell ow brass,copper, etc.)

PHZE - 1250 / 1000 / 200 / RAL9010 / XX

In order to simplify the selection of the louvres and other insulatingproducts based on the complex noise situation and the sourceof the noise, the manufacturer created the computer software

CALCULATION SOFTWARE

Cell silencers JTH

Cell silencers JTHE

Panel silencersGlideow - GDE

JTH

www.stavoklima.eu

Jdrov tlumie hluku

JTHE

www.stavoklima.eu

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Documents

Catalogue PHZE ENG