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A primary noise source in oxygen cutting
Luleå tekniska universitet.
Luleå tekniska universitet.
1988 (engelsk)Inngår i: Inter-noise 88: proceedings : 1988 International Conference on Noise Control Engineering, Avignon, France, 30 August - 1 September 1988 / [ed] Michel Bockhoff, Poughkeepsie, N.Y.: SFA , 1988, s. 715-718Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Oxygen cutting of steel is a process of oxidation at raised temperatures. A very high massrate of oxygen is needed. The exit velocity of the oxygen is often supersonic. Convergent-divergent nozzles of Laval type are used. The cutting gives rise to very high noise levels. Levels of up to 110 dB(A) at 1 meter distance from two burners have been measured at a steel plant. The central supersonic oxygen jet is surrounded by a burning coaxial jet. The noise source is a combination of the jet and the combustion. A reduction of the noise at the source is attempted by redesigning the nozzles used. This paper discusses the theoretical background and the experimental results relating to the redesigned nozzle.

sted, utgiver, år, opplag, sider
Poughkeepsie, N.Y.: SFA , 1988. s. 715-718
HSV kategori
Forskningsprogram
Teknisk akustik
Identifikatorer
URN: urn:nbn:se:ltu:diva-37372Lokal ID: b5fcfba0-86c0-11db-8975-000ea68e967bOAI: oai:DiVA.org:ltu-37372DiVA, id: diva2:1010870
Konferanse
International Conference on Noise Control Engineering : 30/08/1988 - 01/09/1988
Merknad
Godkänd; 1988; 20061208 (biem)Tilgjengelig fra: 2016-10-03 Laget: 2016-10-03 Sist oppdatert: 2021-02-11bibliografisk kontrollert

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