Hluk generovaný regulačními klapkami

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F08%3A02149313" target="_blank" >RIV/68407700:21220/08:02149313 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Noise Generated by Control Dampers

Popis výsledku v původním jazyce

Control elements are an integral part of all HVAC equipment. Most frequently used are butterfly (single-blade) or multiblade dampers which throttle the flow of air through ducts. This results in an increase of the flow rate of the fluid in the place of contraction of the flow and in subsequent enhanced generation of noise. This paper is focused mainly on analysis of the working characteristics of a damper in a circular-section duct in terms of generation of noise. This contribution presents results of experimental measurements and analyses of causes of generation of acoustic energy from a circular-section blade in the following cases : normal stop damper with full control blade, control damper with improved control characteristic (dimensional improvement of control blade) and tight damper with improved control (perforated control blade) leading to reduction of radiated acoustic energy at simultaneous reduction of the pressure gradient.

Název v anglickém jazyce

Noise Generated by Control Dampers

Popis výsledku anglicky

Control elements are an integral part of all HVAC equipment. Most frequently used are butterfly (single-blade) or multiblade dampers which throttle the flow of air through ducts. This results in an increase of the flow rate of the fluid in the place of contraction of the flow and in subsequent enhanced generation of noise. This paper is focused mainly on analysis of the working characteristics of a damper in a circular-section duct in terms of generation of noise. This contribution presents results of experimental measurements and analyses of causes of generation of acoustic energy from a circular-section blade in the following cases : normal stop damper with full control blade, control damper with improved control characteristic (dimensional improvement of control blade) and tight damper with improved control (perforated control blade) leading to reduction of radiated acoustic energy at simultaneous reduction of the pressure gradient.

Druh

D - Stať ve sborníku

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Fifteenth International Congress on Sound and Vibration (ICSV15)

ISBN

978-89-961284-1-0

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

The Korean Society for Noise and Vibration Engineering (KSNVE)

Místo vydání

Daejeon

Místo konání akce

Daejeon

Datum konání akce

6. 7. 2008

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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