The Influence of Climatic Factors on Noise from «Dry» Fan Cooling Towers

The article examines the influence of regional climatic factors on sound pressure level (SPL) and sound level (SL) at calculated points for various cities in the Russian Federation from «dry» cooling towers with axial fans of a thermal power plant (TPP). The analysis was carried out by constructing a model of a thermal power plant (TPP) with a capacity of 464 MW. It has been determined that changes in climatic factors for the cities of Sochi, Yakutsk, Kaliningrad, Dikson throughout the year significantly affect the sound pressure level at octave bands 1000–8000 Hz. It was determined that the greatest influence of climatic factors on the noise level is observed for the conditions of the city of Yakutsk. The maximum difference between sound pressure levels at different times of the year can be as high as 42.0 dB. Climate factors should be considered when developing noise-reducing measures for «dry» cooling towers of different capacity.