NOISE CONTROL OF FEED WATER PUMPS IN A THERMAL POWER PLANT

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JAHANGIRI MOHAMAD; GOLMOHAMMADI ROSTAM; ALIABADI MOHSEN; JALALI MEHDI

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Journal: Iran Occupational Health Year:2017 | Volume:14 | Issue:1 Page(s): 81-92

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Information Journal Paper

Title

NOISE CONTROL OF FEED WATER PUMPS IN A THERMAL POWER PLANT

Author(s)

JAHANGIRI MOHAMAD | GOLMOHAMMADI ROSTAM | ALIABADI MOHSEN | JALALI MEHDI | Issue Writer Certificate

Keywords

NOISE CONTROLQ1

THERMAL POWER PLANTQ2

ENCLOSUREQ1

FEED WATER PUMPQ1

Abstract

Background and aims: The power plants as an important industry of the country produce a lot of noise and their workers are exposed to harmful levels of occupational noise. The aim of this study was designing ENCLOSUREs to NOISE CONTROL in the FEED WATER PUMPs in a power plant.Methods: This cross-sectional interventional study was carried out in the ground floor of the turbine unit of a THERMAL POWER PLANT in 2014. The FEED WATER PUMPs in the ground floor was determined as the major source of noise. The sound power level of the main sources were estimated according to the ISO 3746. To determine the distribution of the sound pressure level and frequency analysis on the vertical axis for the study sources we used the SLM model TES 1358. Measuring was by small scale mesh networking. The SURFER software was used for interpolation calculation and noise map drawing. Eventually, in order to control the noise we designed a multilayer ENCLOSURE for this pump and the effectiveness of this layer was estimated.Results: The results of the noise analysis of these pumps showed that the dominant frequency of the noise were 2000 Hz. The results of the noise separation in the vertical axis of the sources confirms that the main pump and gearbox have the largest share in the noise distribution. The results also showed that the sound power level of the main pump is 107dB and of the gearbox is 108 dB. The design of the ENCLOSURE contains a primary layer made of steel and the inner layer made of rubber foam. In this design, including a percentage of noise leakage, the sound pressure level of the main parts of the pump will be reduced by 20 dB.Conclusion: Enclosing technique can reduce noise levels for boiler FEED WATER PUMPs. This could protect the workers against harmful noise to the permissible limits.

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APA: Copy

JAHANGIRI, MOHAMAD, GOLMOHAMMADI, ROSTAM, ALIABADI, MOHSEN, & JALALI, MEHDI. (2017). NOISE CONTROL OF FEED WATER PUMPS IN A THERMAL POWER PLANT. IRAN OCCUPATIONAL HEALTH JOURNAL, 14(1), 81-92. SID. https://sid.ir/paper/129211/en

Vancouver: Copy

JAHANGIRI MOHAMAD, GOLMOHAMMADI ROSTAM, ALIABADI MOHSEN, JALALI MEHDI. NOISE CONTROL OF FEED WATER PUMPS IN A THERMAL POWER PLANT. IRAN OCCUPATIONAL HEALTH JOURNAL[Internet]. 2017;14(1):81-92. Available from: https://sid.ir/paper/129211/en

IEEE: Copy

MOHAMAD JAHANGIRI, ROSTAM GOLMOHAMMADI, MOHSEN ALIABADI, and MEHDI JALALI, “NOISE CONTROL OF FEED WATER PUMPS IN A THERMAL POWER PLANT,” IRAN OCCUPATIONAL HEALTH JOURNAL, vol. 14, no. 1, pp. 81–92, 2017, [Online]. Available: https://sid.ir/paper/129211/en

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