Acoustic louvres
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Acoustic louvres PHZE Technical Data Acoustic louvres

Acoustic louvres PHZE Technical Data Description and use: bird protection grid in detail: Bird protection Síto proti grid vletu ptactva 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...

STaVOKLIM Technical Data Louvre weight [kg] and free cross section [%] * valid for the whole connection dimension (AxB) Calculation: Lv = 10log (10Lpv/10 + 10L*/10) + dL Lpv=Lwi + 10 |og (4x rcxR2) LPz=Lwz (A) + 10 log Lw1= Lwa - Dt - D DEPTH „200" mm 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 Lp^ = self noise of the louvre dL = correction of reverberation noise in the outside (constant = 3) Lw-| = sound power lever of the system "dB(A)" Lwa = sound power of the noise source...

Acoustic louvres PHZE Technical Data Louvre weight [kg] and free cross section [%] * valid for the whole connection dimension (AxB) 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 Lp^ = self noise of the louvre dL = correction of reverberation noise in the outside (constant = 3) Lw-| = 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 Lw^(A) = Lw (diagram) + A Lw + Lwa + Lwa oct (for the...

STaVOKLIM Technical Data Louvre weight [kg] and free cross section [%] * valid for the whole connection dimension (AxB) Calculation: Lv = 10log (10Lpv/10 + 10L*/10) + dL Lpv=Lwi + 10 |og (4x rcxR2) LPz=Lwz (A) + 10 log Lw1= Lwa - Dt - D Lwz(A) = Lw (diagram) + A Lw + Lwa + Lwa oct (for the relevant frequency) DEPTH „400" mm 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 Lp^ = self noise of the louvre dL = correction of reverberation noise in the outside (constant = 3) Lw-| = sound...

Louvre weight [kg] and free cross section [%] * valid for the whole connection dimension (AxB) 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 Lp^ = self noise of the louvre dL = correction of reverberation noise in the outside (constant = 3) Lw-| = 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 Lw.(A) = Lw (diagram) + A Lw + Lwa + Lwa oct (for the relevant frequency) Lw^(A) = level of the...

METHODICS OF DESIGNING ACOUSTIC LOUVER Lwz(A) = Lw (diagram) + A Lw + Lwa + Lwa oct 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 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 Lp^ = self noise of the louvre dL = correction of reverberation noise in the outside (constant = 3) LW|(A)= sound power level of the louvre at defined air stream speed right in front of the louvre R =...

Acoustic louvres PHZE 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 www.stavoklima.eu www.rucon-air.com Panel silencers Glideflow - GDE www.stavoklima.eu www.rucon-air.com „Colour finish“ „Material finish“ ZN – zinc-coated metal sheet AL – sheet aluminium NI – stainless steel XX – different finish (yellow brass, copper, etc.) STAVOKLIMA s.r.o. BUDĚJOVICKÁ 450 • 370 01 HOMOLE tel.: +420 387...