scholarly journals Case History: Factory Noise Prediction Using Ray Tracing--Experimental Validation and the Effectiveness of Noise Control Measures

1989 ◽  
Vol 33 (3) ◽  
pp. 97 ◽  
Author(s):  
Murray Hodgson
Keyword(s):  
Ray Tracing ◽  
Case History ◽  
Experimental Validation ◽  
Noise Control ◽  
Control Measures ◽  
Noise Prediction

Urban planning-Simulation of noise control measures

2015 ◽  
Vol 63 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Fernando Bunn ◽  
Paulo Henrique Trombetta Zannin
Keyword(s):  
Urban Planning ◽  
Noise Control ◽  
Control Measures

Priorities for occupational noise in Britain

2021 ◽  
Vol 263 (5) ◽  
pp. 996-1007
Author(s):  
Chris Steel ◽  
Paul Brereton
Keyword(s):  
Noise Control ◽  
Control Measures ◽  
Occupational Noise ◽  
High Noise ◽  
Enforcement Action ◽  
High Incidence ◽  
Hearing Damage ◽  
Workplace Noise ◽  
Current Risk ◽  
Reduced Risk

Regulation of occupational exposure to noise in Britain for 50 years has reduced risk. However, statistics from around the globe (and in Britain alone) suggest that the range in harm is between around zero and more than 1 in 4 workers exposed to high noise. The uncertainty in statistics and the potential high incidence and prevalence of harm justifies investigation. In Britain, we will investigate the current risk of occupational hearing loss and the effectiveness of current noise control measures. We propose to gather data during inspections of industries that are known to have high levels of workplace noise. Finding high incidence of hearing damage will indicate a failure of immediate management of risk and likely result in enforcement action. We propose to review employers' control of noise propagation in the workplace through use and maintenance of noise controls supplied with machines and supplemented with acoustic barriers and noise havens. We propose to review suppliers design and build of noise control into their products and their reported noise emissions for noisiest typical use. We are looking to benefit from the experience of our global counterparts before finalising our plans.

Assessment of noise control measures for a model advanced ducted propulsor

1996 ◽  
Vol 33 (3) ◽  
pp. 505-510
Author(s):  
David G. Hall ◽  
Richard P. Woodward
Keyword(s):  
Noise Control ◽  
Control Measures

Noise Control Technology With Reference to Natural Gas Compressor Stations Under the Aspect of Investment Costs

1992 ◽  
Vol 114 (4) ◽  
pp. 737-739 ◽  
Author(s):  
M. Schneider ◽  
J. Mann
Keyword(s):  
Natural Gas ◽  
Gas Turbines ◽  
Noise Control ◽  
Control Measures ◽  
Control Technology ◽  
Noise Emission ◽  
Sound Sources ◽  
Control Techniques ◽  
Emission Regulations ◽  
And Storage

For the conveyance and storage of natural gas, compressor stations are required where the installed power output varies mostly between 1 MW and 20 MW. The noise control measures involved to meet the environmental noise emission regulations in Europe will be presented. The most economical noise control techniques are described particularly for the intake and exhaust systems of gas turbines, the housing of such engines, and peripheral sound sources like gas coolers, oil coolers, and aboveground piping.

Study on Acoustic Model of Transformer

2014 ◽  
Vol 1008-1009 ◽  
pp. 571-575
Author(s):  
Jing Zhu Hu ◽  
Di Chen Liu ◽  
Qing Fen Liao ◽  
Su Wei ◽  
Lei Yu
Keyword(s):  
Noise Level ◽  
Noise Control ◽  
Noise Source ◽  
Sound Field ◽  
Point Sources ◽  
Equivalent Model ◽  
Noise Prediction ◽  
Acoustic Model ◽  
Plane Source ◽  
Equivalent Source

The model of transformer as a noise source is very critical for substation noise prediction. The transformer is equivalent to several point sources on the basis of regarding the transformer as a combination of several planar sources. This equivalent model is based on equivalent source method and it is convenient and easy. The model of 9 equivalent point sources is simulated to verify that the rebuilt sound field is roughly the same as the actual sound field generated by the plane source. Moreover, the accuracy of the model with different settings was discussed. The acoustic model is accurate and feasible to calculate the noise level radiated by transformer and it is meaningful for substation noise control.

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