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Base de datos CISDOC

ID (ISN) del documento109028
Número CIS 09-174
ISSN - Título de la serie 1545-9624 - Journal of Occupational and Environmental Hygiene
Año 2007
Número de serie
Autor(es) Sheen S.C., Hsiao Y.H.
Título On using multiple-jet nozzles to suppress industrial jet noise
Información bibliográfica Sep. 2007, Vol.4, No.9, p.669-677. Illus. 13 ref.
Resumen This study investigated the efficacy of multiple-jet nozzles in reducing exposure to noise radiated from high-speed jet flows that are frequently used for cleaning and other purposes. By replacing a single-jet nozzle by a nozzle with multiple and smaller outlets with the same combined exit area, the noise generated would shift to higher frequencies due to the smaller openings; thus it is hypothesized that a portion of the sound energy is moved to the ultrasonic range and the audible noise levels will be reduced. Nozzle outlet diameters of 2.2mm, 2mm, 1mm, and 0.7mm were tested at various flow rates. Results show that the noise-abating effect of using smaller outlets is significant.
Descriptores (primarios) ruido aerodinámico; limpieza con chorro a presión; lucha contra el ruido
Descriptores (secundarios) valoración del material; diseno del material; ultrasonido
Tipo de documento D - Artículos periódicos
País / Estado o ProvinciaTaiwan (China)
Tema(s) Ruido, audición, vibraciones
Broad subject area(s) Riesgos físicos
Navegación por categoria(s) Noise