A primary noise source in oxygen cutting
1988 (English)In: 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, 715-718 p.Conference paper (Refereed)
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.
Place, publisher, year, edition, pages
Poughkeepsie, N.Y.: SFA , 1988. 715-718 p.
Research subject Engineering Acoustics
IdentifiersURN: urn:nbn:se:ltu:diva-37372Local ID: b5fcfba0-86c0-11db-8975-000ea68e967bOAI: oai:DiVA.org:ltu-37372DiVA: diva2:1010870
International Conference on Noise Control Engineering : 30/08/1988 - 01/09/1988
Godkänd; 1988; 20061208 (biem)2016-10-032016-10-03Bibliographically approved