Linear Sources with Non-Linear Distribution of Soung Energy

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Linear Sources with Non-Linear Distribution of Soung Energy

Popis výsledku v původním jazyce

The present contribution introduces a method of calculation of linear sources with non-linear distribution of radiation of sound energy. In practical circumstances we often meet sources the structures of which approach those of current HVAC ducts but with dimensions and mode of radiation completely different. Concerned are light stacks of factories, refuse incinerating plants, etc. The core of the problem is that a stack must be considered as a linear source where sound power is radiated in two parts. The first at the top of the stack (point source) and the second, considerably greater, by the outer surface of the stack (linear source). Sound power, however, is radiated by the outer surface of the stack in a non-linear mode and drops from the flue gasinlet to the top of the stack. In projects it is therefore very difficult to predict how must a stack radiate sound energy in order to prevent exceeding hygienically permissible limits.

Název v anglickém jazyce

Linear Sources with Non-Linear Distribution of Soung Energy

Popis výsledku anglicky

The present contribution introduces a method of calculation of linear sources with non-linear distribution of radiation of sound energy. In practical circumstances we often meet sources the structures of which approach those of current HVAC ducts but with dimensions and mode of radiation completely different. Concerned are light stacks of factories, refuse incinerating plants, etc. The core of the problem is that a stack must be considered as a linear source where sound power is radiated in two parts. The first at the top of the stack (point source) and the second, considerably greater, by the outer surface of the stack (linear source). Sound power, however, is radiated by the outer surface of the stack in a non-linear mode and drops from the flue gasinlet to the top of the stack. In projects it is therefore very difficult to predict how must a stack radiate sound energy in order to prevent exceeding hygienically permissible limits.

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

2007

Kód důvěrnosti údajů

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

Název statě ve sborníku

14th International Congress on Sound and Vibration

ISBN

978-0-7334-2516-5

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

900-907

Název nakladatele

IIAV - International Institute of Acoustics and Vibration

Místo vydání

Auburn

Místo konání akce

Queensland

Datum konání akce

9. 7. 2007

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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