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Statements

Subject Item
n2:RIV%2F68407700%3A21220%2F03%3A02089217%21RIV%2F2004%2FMSM%2F212204%2FN
rdf:type
skos:Concept n17:Vysledek
dcterms:description
During last years several problematic projects of boiler houses gave grievance for the sake of an excessive noise in outside of them. Experience from realized sound measurements on many boilers show, that noise generated in outside by the chimney is very depending not only on noise of a burner but mainly on a transmission loss or an amplification of boiler incl. smoke-flu and chimney too. In the paper are presented some findings which were obtained by theoretical and experimental works on a array of boiler houses. It was demonstrated, that own frequencies of particular pipes and cavities inside of boiler must not be the same as own frequencies of e smoke-flu and a chimney. In case,it is all acoustic system in tune, the chimney radiates more acoustic energy on own frequencies as a big organ. Boiler and burner design would be respect a condition, that any part of boiler pipes a cavities in the first case must not to have the same own frequencies. The theoretic formulae for a calculation During last years several problematic projects of boiler houses gave grievance for the sake of an excessive noise in outside of them. Experience from realized sound measurements on many boilers show, that noise generated in outside by the chimney is very depending not only on noise of a burner but mainly on a transmission loss or an amplification of boiler incl. smoke-flu and chimney too. In the paper are presented some findings which were obtained by theoretical and experimental works on a array of boiler houses. It was demonstrated, that own frequencies of particular pipes and cavities inside of boiler must not be the same as own frequencies of e smoke-flu and a chimney. In case,it is all acoustic system in tune, the chimney radiates more acoustic energy on own frequencies as a big organ. Boiler and burner design would be respect a condition, that any part of boiler pipes a cavities in the first case must not to have the same own frequencies. The theoretic formulae for a calculation
dcterms:title
Sound Transmission by Boilers and Chimneys Sound Transmission by Boilers and Chimneys
skos:prefLabel
Sound Transmission by Boilers and Chimneys Sound Transmission by Boilers and Chimneys
skos:notation
RIV/68407700:21220/03:02089217!RIV/2004/MSM/212204/N
n3:strany
104 ; 104
n3:aktivita
n16:Z
n3:aktivity
Z(MSM 210000011)
n3:dodaniDat
n20:2004
n3:domaciTvurceVysledku
n8:3175375
n3:druhVysledku
n7:D
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
627942
n3:idVysledku
RIV/68407700:21220/03:02089217
n3:jazykVysledku
n19:eng
n3:klicovaSlova
boiler; burner; noise
n3:klicoveSlovo
n6:boiler n6:noise n6:burner
n3:kontrolniKodProRIV
[0E3E656C401F]
n3:mistoKonaniAkce
Stockholm
n3:mistoVydani
Auburn
n3:nazevZdroje
Proceedings of the Tenth International Congress on Sound and Vibration
n3:obor
n14:JE
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:rokUplatneniVysledku
n20:2003
n3:tvurceVysledku
Nový, Richard
n3:typAkce
n5:WRD
n3:zahajeniAkce
2003-06-07+02:00
n3:zamer
n4:MSM%20210000011
s:numberOfPages
1
n18:hasPublisher
International Institute of Acoustics and Vibration
n10:organizacniJednotka
21220