Volume 8, Issue 3 (Autumn 2021)                   johe 2021, 8(3): 50-58 | Back to browse issues page

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Askari A, Golmohammadi R, Alinia A, Honairi Haghighi A. Study the Impact of Acoustic Barrier on Noise Reduction of Generator Building, Case Study: North Azadegan Oil Field. johe 2021; 8 (3) :50-58
URL: http://johe.umsha.ac.ir/article-1-594-en.html
1- Department of Occupational health, School of Public Health, Tehran University of Medical Sciences , a-askari@razi.tums.ac.ir
2- OICO health and environment expert at Sarvak Azar oil field, Ilam, Iran
Abstract:   (2081 Views)
Background and Objective: Noise is a kind of mechanical energy that is sensed by the human auditory system. It can cause physiological and psychological disturbances, therefore controlling the exposure to this harmful factor is highly important in industrial and non-industrial work environments. The present study aimed to determine the effectiveness of acoustic barriers on noise reduction in one generator building.
Materials and Methods: This case study was conducted in four stages in January 2020, which included: determining the purpose of the measurement, gathering information from the site, selecting the proper material, designing, installing the noise barrier, and evaluating its effectiveness. The level of environmental noise was measured according to ISO 9612-2009 [E] using Casella CEL-450 Sound Level Meter.
Results: The average noise reduction, 1 m from the noise barrier was 19.5 dB, the highest recorded transmission loss was 22.4 dB. at 8000 Hz.
Conclusion: The sound barrier introduced in this project is recommended for similar conditions with effectiveness of 19±0.5 dB due to the simplicity of the design, ease of implementation, and efficiency.
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Type of Study: Case Report | Subject: Physical agents

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