DETERMINATION OF THE DOMINANT NOISE SOURCE IN AN AIR PRODUCTION PLANT OF A PETROCHEMICAL INDUSTRY AND ASSESSING THE EFFECTIVENESS OF ITS ENCLOSING

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MONAZZAM M.R.; FARHANG DEHGHAN S.; NASSIRI P.; JAHANGIRI M.

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Journal: Tibbi- i- kar Year:2015 | Volume:7 | Issue:2 Page(s): 44-56

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Title

DETERMINATION OF THE DOMINANT NOISE SOURCE IN AN AIR PRODUCTION PLANT OF A PETROCHEMICAL INDUSTRY AND ASSESSING THE EFFECTIVENESS OF ITS ENCLOSING

Author(s)

MONAZZAM M.R. | FARHANG DEHGHAN S. | NASSIRI P. | JAHANGIRI M. | Issue Writer Certificate

Keywords

NOISE POLLUTIONQ3

ENVIRONMENTAL NOISE MEASUREMENTQ2

NOISE CONTROL ENCLOSUREQ2

AIR PRODUCTION PLANTQ2

PETROCHEMICAL INDUSTRYQ2

Abstract

Introduction: The purpose of this study was to assess the NOISE POLLUTION and determine the dominant noise source in AIR PRODUCTION PLANT of a PETROCHEMICAL INDUSTRY, and also it aimed to evaluate the effect of encapsulation of noise source on its overall noise level.Methods: The first step, the ENVIRONMENTAL NOISE MEASUREMENT was done to measure the levels of NOISE POLLUTION in air units of a PETROCHEMICAL INDUSTRY. Then, in order to determine the dominant noise source of each air units, isosonic curves were drawn. In the third phase, the efficacy of encapsulation method was selected as the best way to reduce the sound pressure level SPL of the main source (Dryer) of This unit.Results: Results of the assessment of environmental noise revealed that the average sound pressure level in all of the AIR PRODUCTION PLANT was calculated over than 88.9 dB A. Considering hazard zone at isosonic curve, it was obvious that in the location of Dryer machinery, sound pressure level has increased more and SPL has been measured to 100 dB A. Compressed air dryer, was known as the main noise source. According to the efficacy of conventional methods of noise control, considering the dryer’s frequency analysis, and the condition of the unit sound enclosure was chosen as the best engineering control of noise. It was predicted that by providing the sound enclosure, overall sound pressure level will be reduced about 19.4 dB A.Conclusion: However, more than half of the investigated unit was in caution zone , the various problems of exposure to these noise level can reveal in the short term or long term. So, in order to prevent the auditory and non-auditory effects of noise, it is necessary to provide appropriat measures to implement control projects on the other resources, which made noise in this PETROCHEMICAL INDUSTRY.

Cites

HEARING LOSS AMONG FASA SUGAR FACTORY WORKERS’, FARS PROVINCRE, IRAN (2016)

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APA: Copy

MONAZZAM, M.R., FARHANG DEHGHAN, S., NASSIRI, P., & JAHANGIRI, M.. (2015). DETERMINATION OF THE DOMINANT NOISE SOURCE IN AN AIR PRODUCTION PLANT OF A PETROCHEMICAL INDUSTRY AND ASSESSING THE EFFECTIVENESS OF ITS ENCLOSING. OCCUPATIONAL MEDICINE, 7(2), 44-56. SID. https://sid.ir/paper/207000/en

Vancouver: Copy

MONAZZAM M.R., FARHANG DEHGHAN S., NASSIRI P., JAHANGIRI M.. DETERMINATION OF THE DOMINANT NOISE SOURCE IN AN AIR PRODUCTION PLANT OF A PETROCHEMICAL INDUSTRY AND ASSESSING THE EFFECTIVENESS OF ITS ENCLOSING. OCCUPATIONAL MEDICINE[Internet]. 2015;7(2):44-56. Available from: https://sid.ir/paper/207000/en

IEEE: Copy

M.R. MONAZZAM, S. FARHANG DEHGHAN, P. NASSIRI, and M. JAHANGIRI, “DETERMINATION OF THE DOMINANT NOISE SOURCE IN AN AIR PRODUCTION PLANT OF A PETROCHEMICAL INDUSTRY AND ASSESSING THE EFFECTIVENESS OF ITS ENCLOSING,” OCCUPATIONAL MEDICINE, vol. 7, no. 2, pp. 44–56, 2015, [Online]. Available: https://sid.ir/paper/207000/en

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