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WORKING PLACES NOISE REDUCTION MEASURES FOR MILK PROCESSING INDUSTRY |
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| รหัสดีโอไอ | |
| Creator | V.S. Shkrabak, A.P. Saveljev, S.A. Enaleeva, R.V. Shkrabak, Yu.N. Braginec, V.F. Bogatirev, O.G. Loretts |
| Title | WORKING PLACES NOISE REDUCTION MEASURES FOR MILK PROCESSING INDUSTRY |
| Contributor | - |
| Publisher | TuEngr Group |
| Publication Year | 2563 |
| Journal Title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| Journal Vol. | 11 |
| Journal No. | 10 |
| Page no. | 11A10F: 1-11 |
| Keyword | Dairy industry, Working conditions, Noise protection, Noise insulation construction, Sound absorption coefficient, Sound-absorbing panels. |
| URL Website | http://TuEngr.com/Vol11_10.html |
| Website title | ITJEMAST V11(10) 2020 @ TuEngr.com |
| ISSN | 2228-9860 |
| Abstract | Noise levels are exceeded in the workplaces of the dairy industry. For noise reduction, an original insulation construction was developed. Its basis is a honeycomb panel covered with a plate with perforation in the form of triangular holes. A cellular elastic mesh of 2mm-isolon is fixed on the outer side of the perforated plate. The panel is hermetically covered with a thin 50 microns film. Evaluation of noise protection effectiveness measures was carried out according to the influence of increased noise on labor productivity. The annual economic effects of three workshops were estimated by comparing the economic result and the reduced costs of the preparation and implementation of the soundproof structure. With noise protection, working conditions improved, labor productivity increased, and the amount of insurance contributions to the pension fund decreased. The influence of noise on labor productivity was carried out taking into account the actual duration of technological processes with the participation of employees of the milk processing enterprise. The time of natural technological processes was excluded from the time of the work shift. Also, time for sanitary treatment was excluded too. The annual reduced costs included the costs of the preparation and installation of the noise insulation construction. The economic effect of the introduction of insulation construction in the form of a suspended ceiling in three workshops amounted to 1,171.59 thousand rubles with a 0.98-year payback period. This study allows us to recommend the developed sound-absorbing panels for use in similar enterprises. |
