A method to reduce wall mounted boiler noise pollution by a sustainable approach

Document Type : Research Article

Authors

1 Assistant Professor, Tabriz Islamic Art University, Faculty of Design, Tabriz IRAN

2 MSc Student, Tabriz Islamic Art University, Faculty of Design, Tabriz IRAN

Abstract

The mechanisms involved in the operation of the wall-mounted boilers are the primary source of noise pollution, which bothers users while operating. One of the most basic solutions is to control the amount of noise by using insulator materials. The material must have acoustic absorption characteristics and high heat resistance. In this study, four acoustic materials based on polymer resins, glass wool and stone, and jute fabrics that have good degradability in nature have been studied as noise control materials. Based on the physical and chemical properties of the acoustic insulating polymers, high noise absorption is generated and flammability is preserved at high temperatures too. The nature of acoustic absorption and high degradability is also noticeable in jute fabrics. For the shell sound control tests, several wall-mounted boilers have been used in this study, and the sound waves have been measured using a B&K 2260 measuring device. The overall rate of noise reduction in monolayer and blended double-layer insulators has been compared. Although the monolayer or double-layer insulators perform better than jute ones, the acoustic absorption standard of the wall-mounted boilers can also be achieved by using jute. Therefore, due to environmental conditions, the jute is approved as a sound insulator.

Highlights

  • Four materials (Foam, Glasswool, Rockwool, and Jute) were prepared as sound insulators.
  • Insulators made monolayer and double-layer by the combination of two types of materials.
  • Noise reduction in monolayer and double-layer insulators was compared.
  • Natural jute fibers can be used as a good sound insulator.
  • Jute is one of the cheapest natural, biodegradable and recyclable fibers

Keywords

Main Subjects

References

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Journal of Theoretical and Applied Vibration and Acoustics
Volume 6, Issue 1 - Serial Number 1
January 2020
Pages 133-142

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