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Statements

Subject Item
n2:RIV%2F68407700%3A21220%2F11%3A00182826%21RIV12-MSM-21220___
rdf:type
skos:Concept n11:Vysledek
dcterms:description
Air flowing around bodies in HVAC units is responsible in such places for a significant increase of pressure losses and/or low velocity and consequently for enhanced generation of sound energy into the surrounding environment. The aim of the project is to decrease the sound power of HVAC elements via a decrease of the turbulence of air. The principle of such a reduction is based on an analysis of the spectrum of turbulence and its correlation with the spectrum of sound power. The contribution presents the processes and pitfalls of experimental measurements which monitors correlations between the hydraulic characteristics of air flow turbulence such as turbulence intensity, flow velocity and/or their spectral dependences in relation with the spectral dependence of the sound power levels of an inlet induction element or an independent inlet/outlet. Air flowing around bodies in HVAC units is responsible in such places for a significant increase of pressure losses and/or low velocity and consequently for enhanced generation of sound energy into the surrounding environment. The aim of the project is to decrease the sound power of HVAC elements via a decrease of the turbulence of air. The principle of such a reduction is based on an analysis of the spectrum of turbulence and its correlation with the spectrum of sound power. The contribution presents the processes and pitfalls of experimental measurements which monitors correlations between the hydraulic characteristics of air flow turbulence such as turbulence intensity, flow velocity and/or their spectral dependences in relation with the spectral dependence of the sound power levels of an inlet induction element or an independent inlet/outlet.
dcterms:title
NOISE GENERATED BY TURBULENT AIR FLOW NOISE GENERATED BY TURBULENT AIR FLOW
skos:prefLabel
NOISE GENERATED BY TURBULENT AIR FLOW NOISE GENERATED BY TURBULENT AIR FLOW
skos:notation
RIV/68407700:21220/11:00182826!RIV12-MSM-21220___
n11:predkladatel
n12:orjk%3A21220
n3:aktivita
n6:Z
n3:aktivity
Z(MSM6840770011)
n3:dodaniDat
n10:2012
n3:domaciTvurceVysledku
n13:5730112 n13:3175375
n3:druhVysledku
n18:D
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
216137
n3:idVysledku
RIV/68407700:21220/11:00182826
n3:jazykVysledku
n19:eng
n3:klicovaSlova
Noise of HVAC equipment, Duct acoustics, Control Dampers, turbulent flow
n3:klicoveSlovo
n15:Duct%20acoustics n15:Control%20Dampers n15:turbulent%20flow n15:Noise%20of%20HVAC%20equipment
n3:kontrolniKodProRIV
[54540E0D5510]
n3:mistoKonaniAkce
Brazílie
n3:mistoVydani
Rio de Janeiro
n3:nazevZdroje
Eighteenth International Congress on Sound and Vibration (ICSV18)
n3:obor
n21:JE
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n10:2011
n3:tvurceVysledku
Nový, Richard Kučera, Miroslav
n3:typAkce
n16:WRD
n3:zahajeniAkce
2011-07-10+02:00
n3:zamer
n22:MSM6840770011
s:numberOfPages
8
n17:hasPublisher
Brazilian Acoustical Society
n8:isbn
978-85-63243-01-0
n14:organizacniJednotka
21220