Increasing safety of thermal and nuclear power stations energy equipment by reducing noise

Tupov, V. B.

doi:10.1088/1742-6596/891/1/012186

Cited by 6 publications

(5 citation statements)

References 2 publications

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“…The acoustic calculations performed make it possible to determine the main sources of noise responsible for the exceedance of the sanitary limits in the area surrounding the sanitary protection zone. For example, for supercritical pressure units, this is the noise from exit nozzles of axial smoke exhausters [3][4]; for TPPs with gas turbine units, this in some cases may be the noise from dry fan cooling towers [14].…”

Section: Results Of Calculations Of Spz Aroundgtu and Ccgtmentioning

confidence: 99%

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Problems of acoustic safety in power engineering

Tupov

Taratorin

Skvortsov

et al. 2022

J. Phys.: Conf. Ser.

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Environmental safety issues are becoming increasingly important in the life of society. Among environmental safety issues in power engineering, acoustic safety occupies a special place. The problem of acoustic safety is associated with the fact that the regular operation of power equipment leads to an increased noise level, and power facilities are located in close proximity to residential areas. In this work, acoustic calculations were performed to determine the sanitary protection zone for gas turbines units (GTU) and combined cycle gas turbine units (CCGT) of various capacities. A formula was obtained for calculating the width of the sanitary protection zone depending on the capacity of gas turbine units and combined cycle plants and their number. It is shown that the sanitary protection zone (SPZ) of a power unit of high capacity is smaller than the sanitary protection zone of several power units of the same capacity. It is found that the noise levels from individual groups of equipment can determine the noise level at the entire border of the sanitary protection zone or in its individual sections. At the same time, noise suppression measures should be taken for all sources that generate noise levels in excess of standards. It is necessary to start noise suppression measures from those sources that generate excess noise in a larger section of the sanitary protection zone.

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Section: Results Of Calculations Of Spz Aroundgtu and Ccgtmentioning

confidence: 99%

“…Axial draft machines are much more noisy than centrifugal ones. A classification of noise sources in turbine power plants (TPPs) is given in [3][4]. The most significant source of noise is the release of steam into the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Problems of acoustic safety in power engineering

Tupov

Taratorin

Skvortsov

et al. 2022

J. Phys.: Conf. Ser.

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“…According to the results of theoretical studies [5,6], a boiler case near the burner can be used. In addition to this recommendation, other studies have been conducted in this article on the influence of acoustic treatments on noise reduction.…”

Section: Discussionmentioning

confidence: 99%

“…Regarding the boilers, there are a lot of parameters that can be potentially influential in amplifying the noise emission [4,5,6,7]. Another purpose of this article is to determine which of these parameters actually have a negligible influence on noise emissions.…”

Section: Introductionmentioning

confidence: 99%

3. Experimental Investigation on the Sound Pressure Level for Different Acoustic Treatment of Boiler Rooms

Bailescu¹,

Iordache²

2020

Proceedings of International Conference Building Services and Energy Efficiency

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Noise pollution is the cause of many health problems, and the inhabitants of the neighborhoods from crowded cities exposed to high noise is growing in Europe. Noise from thermal power plants represents the main factor of the acoustic discomfort in the residential buildings for the occupants, but also for the people who operate the equipment. The goal of this article is the experimental analysis of the efficiency of acoustic treatment solutions and their effect in reducing the noise level inside thermal power plants. Although the thermal performance and efficiency of the equipment in a boiler room have increased, the noise level produced by thermal power plants has not decreased considerably. Current measurements of the sound level in boiler plants have shown an increase in the noise level due to the fact that modern burners are noisier than old atmospheric burners, the quality of materials of the burner-boiler fixing system is poor and the volume of the boiler space becomes getting smaller. Covering the burner with a housing can reduce the noise at the source because it absorbs the noise at high frequencies. Instead, this measure is less effective in terms of low frequencies which are also the best transmitted by the structure of the building to the apartments. Regarding the chimney, the noise inside it comes from the combustion process and can be a problem in new buildings for which sound insulation or outdoor installation can be recommended. Another solution to reduce the noise level is to remove the noise source. The boiler rooms must be placed from the design stage as far as possible from the apartments, in another building, in the basement of the building or at least there should be a buffer space between the living rooms and bedrooms represented by common spaces, halls, closets, storage spaces, sheds. The results obtained by the experimental comparisons proved to be satisfactory. This article is expected to assist design engineers in improving compliance with legislation, analysis, and optimization of boiler rooms.

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“…An effective method of reducing noise from gas-air paths of boilers is the use of noise silencers [4,5,6,7].…”

Section: Introductionmentioning

confidence: 99%

Improving the acoustic efficiency of laminated dissipative noise silencers for boiler gas-air paths

2019

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The operation of thermal power facilities is associated with the negative impact on the environment and humans of such factors as air, water, soil pollution, electromagnetic radiation, and noise. This article is devoted to improving the noise reduction efficiency of gas and air paths of boilers of thermal power plants. In world practice, to reduce noise in gas-air ducts, dissipative noise silencers are used. The authors propose a new design of sound attenuation elements for dissipative plate-type silencers. The article defines the acoustic and aerodynamic characteristics of noise silencers with new sound attenuation elements. We compare the characteristics of silencers made of new silencing elements and the characteristics of silencers consisting of plates of common design with flat surfaces of the side walls, and demonstrate an increase in acoustic efficiency and a decrease in pressure loss when using the proposed new silencing elements in noise silencers. Recommendations on the use of dissipative plate-type silencers with developed sound attenuation elements for gas-air paths of boilers are given.

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Increasing safety of thermal and nuclear power stations energy equipment by reducing noise

Cited by 6 publications

References 2 publications

Problems of acoustic safety in power engineering

Problems of acoustic safety in power engineering

3. Experimental Investigation on the Sound Pressure Level for Different Acoustic Treatment of Boiler Rooms

Improving the acoustic efficiency of laminated dissipative noise silencers for boiler gas-air paths

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