THE NOISE ANALYSIS OF A TOUCHLESS CAR WASH
Аннотация
The study examines the environmental noise levels associated with operation of a touchless car wash. As the number of automated car wash facilities is steadily increasing, their noise impacts are becoming a major
concern. Measurements and analysis of noise allowed for identification of the dominant noise sources, evaluation of their environmental impacts and sound characteristics. Results are provided in the form of plotted time histories, spectral analysis data and spectrograms. It was found that the main source is the noise of nozzles supplied with water under high pressure. Calculations were taken of sound levels generated by the noise sources within the car wash and the results were used to determine the noise level exposure at varying distances for several modes of the car wash operation. Due to the high share of higher frequency components in the noise spectrum of sources, it is important in numerical simulations to assume full power spectrum (e.g. in octave bands) in exchange for the global value for the “A” correction filter. It appears that noise generated by the car wash can have an adverse effect on the existing noise environment and that effective monitoring and control measures will be required when pursuing the issuance of the construction permit and then during the car wash operation.
Литература
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