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Noise Isolation System for Indoor Industrial Ventilation

Author

Listed:
  • Pedro Escudero-Villa

    (Centro de Investigaciones de Ciencias Humanas y de la Educación (CICHE), Universidad Indoamérica, Ambato 180103, Ecuador)

  • Patricio Fonseca-Gonzales

    (SISAu Research Group, Facultad de Ingeniería, Industria y Producción, Universidad Tecnológica Indoamérica, Ambato 180103, Ecuador)

  • Jéssica Núñez-Sánchez

    (Centro de Investigaciones de Ciencias Humanas y de la Educación (CICHE), Universidad Indoamérica, Ambato 180103, Ecuador)

Abstract

The prevalence of hearing loss among workers in Ecuador is concerning, with up to 40% affected. One of the root causes is the lack of insulation in sources of noise generation. This study presents a practical solution to reduce noise contamination in indoor industrial facilities and to extend the usability of functional old equipment by enabling the addition of accessories, specifically in the sanding and classification areas of an agglomerate manufacturing industry. An isolation camera was designed and implemented using a combination of insulating materials to reduce the noise of a main ventilator and to ensure compliance with local noise regulations. The design and simulation were carried out using CAD tools and the finite element method (FEM) to ensure a simple assembly design, and the camera was manufactured using rapid prototyping tools with lightweight and cost-effective materials, such as wood, foam, and metal. The camera was tested in situ, and its effectiveness was evaluated through functional tests and noise level measurements. The implementation of the camera resulted in a 16% reduction in pressure noise and a 95% reduction in noise frequency. With the additional use of earmuffs, the pressure reduction improved to 44%. These values ensured that noise levels remained 27% below the limit set by Decree 2393, significantly reducing the impact of noise on workers.

Suggested Citation

  • Pedro Escudero-Villa & Patricio Fonseca-Gonzales & Jéssica Núñez-Sánchez, 2023. "Noise Isolation System for Indoor Industrial Ventilation," Sustainability, MDPI, vol. 15(11), pages 1-13, June.
  • Handle: RePEc:gam:jsusta:v:15:y:2023:i:11:p:9083-:d:1163879
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    References listed on IDEAS

    as
    1. Chun-Won Kang & Mina K. Kim & Eun-Suk Jang, 2021. "An Experimental Study on the Performance of Corrugated Cardboard as a Sustainable Sound-Absorbing and Insulating Material," Sustainability, MDPI, vol. 13(10), pages 1-11, May.
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