Transcription of 5 NOISE SOURCES - World Health Organization
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5 NOISE SOURCES - World Health Organization
5. NOISE SOURCES . Professor Samir Gerges Gustav A. Sehrndt* and Wolfgang Parthey Federal University of Santa Catarina Federal Institute for Occupational Mechanical Engineering Department Safety and Health NOISE and Vibration Laboratory Friedrich-Henkel-Weg 1-25. - Florian polis - SC 44149 Dortmund BRAZIL GERMANY. INTRODUCTION. Industrial machinery and processes are composed of various NOISE SOURCES such as rotors, stators, gears, fans, vibrating panels, turbulent fluid flow, impact processes, electrical machines, internal combustion engines etc. The mechanisms of NOISE generation depend on the particularly noisy operations and equipment including crushing, riveting, blasting (quarries and mines), shake-out (foundries), punch presses, drop forges, drilling, lathes, pneumatic equipment ( jack hammers, chipping hammers, etc.), tumbling barrels, plasma jets, cutting torches, sandblasting, electric furnaces, boiler making, machine tools for forming, dividing and metal cutting, such as punching, pressing and shearing, lathes, milling machines and grinders, as well as textile machines, beverage filling machines and print machines, pumps and compressors, drive units, hand-guided machines, self-propelled working machines, in-plant conveying systems and transport vehicles.
104 Noise sources Table 5.1. Workers exposed to daily LAeq exceeding 85 dB(A). (EPA, 1981) Agriculture 323000 Mining 400000 Construction 513000 Manufacturing and Utilities 5124000 Transportation 1934000
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