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Exhaust Noise Reduction by Application of Expanded Collecting System in Pneumatic Tools and Machines

Author

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  • Dominik Gryboś

    (Department of Thermal and Fluid Flow Machines, Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland)

  • Jacek S. Leszczyński

    (Department of Thermal and Fluid Flow Machines, Faculty of Energy and Fuels, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland)

  • Dorota Czopek

    (Department of Mechanics and Vibroacoustics, Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland)

  • Jerzy Wiciak

    (Department of Mechanics and Vibroacoustics, Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland)

Abstract

In this paper, we demonstrate how to reduce the noise level of expanded air from pneumatic tools. Instead of a muffler, we propose the expanded collecting system, where the air expands through the pneumatic tube and expansion collector. We have elaborated a mathematical model which illustrates the dynamics of the air flow, as well as the acoustic pressure at the end of the tube. The computational results were compared with experimental data to check the air dynamics and sound pressure. Moreover, the study presents the methodology of noise measurement generated in a pneumatic screwdriver in a quiet back room and on a window-fitting stand in a production hall. In addition, we have performed noise measurements for the pneumatic screwdriver and the pneumatic screwdriver on an industrial scale. These measurements prove the noise reduction of the pneumatic tools when the expanded collecting system is used. When the expanded collecting system was applied to the screwdriver, the measured Sound Pressure Level (SPL) decreased from 87 to 80 dB(A).

Suggested Citation

  • Dominik Gryboś & Jacek S. Leszczyński & Dorota Czopek & Jerzy Wiciak, 2021. "Exhaust Noise Reduction by Application of Expanded Collecting System in Pneumatic Tools and Machines," Energies, MDPI, vol. 14(6), pages 1-17, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:6:p:1592-:d:516208
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    References listed on IDEAS

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    1. Leszczynski, J.S. & Grybos, D., 2019. "Compensation for the complexity and over-scaling in industrial pneumatic systems by the accumulation and reuse of exhaust air," Applied Energy, Elsevier, vol. 239(C), pages 1130-1141.
    2. Susanne V. Krichel & Oliver Sawodny, 2014. "Non-linear friction modelling and simulation of long pneumatic transmission lines," Mathematical and Computer Modelling of Dynamical Systems, Taylor & Francis Journals, vol. 20(1), pages 23-44, January.
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    Cited by:

    1. Ryszard Dindorf & Jakub Takosoglu & Piotr Wos, 2021. "Advances in Fluid Power Systems," Energies, MDPI, vol. 14(24), pages 1-6, December.
    2. Czopek, Dorota & Gryboś, Dominik & Leszczyński, Jacek & Wiciak, Jerzy, 2022. "Identification of energy wastes through sound analysis in compressed air systems," Energy, Elsevier, vol. 239(PB).

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