The stand-off distance is one of the running parameters which has a considerable influence on the noise emission generated by different mine engineering applications of high pressure water jet technology. As a part of a broader research programme aimed to the definition of the role played by operating parameters in sound power emission of plain water jets, a set of tests was conducted to correlate the measured sound power levels (1/3-octave band spectral levels) with the corresponding stand-off distances, for different combinations of pressure and nozzle diameter. The paper illustrates the procedures adopted and the results obtained, highlighting the influence of stand-off distance on plain water jet sound power level and providing some indications about the noise contribution of different jet portions.

Plain water jet noise emission: effect of stand-off distance variation

Bortolussi A;
2007

Abstract

The stand-off distance is one of the running parameters which has a considerable influence on the noise emission generated by different mine engineering applications of high pressure water jet technology. As a part of a broader research programme aimed to the definition of the role played by operating parameters in sound power emission of plain water jets, a set of tests was conducted to correlate the measured sound power levels (1/3-octave band spectral levels) with the corresponding stand-off distances, for different combinations of pressure and nozzle diameter. The paper illustrates the procedures adopted and the results obtained, highlighting the influence of stand-off distance on plain water jet sound power level and providing some indications about the noise contribution of different jet portions.
2007
Istituto di Geologia Ambientale e Geoingegneria - IGAG
978-0-9784416-0-9
water jet technology; noise emission; dimension stone processing; occupational health and safety.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/68349
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