ACOUSTIC  TREATMENTS WITH INNOVATIVE PANELS PRODUCED FROM OLIVE OIL WASTES

Umberto Berardi; Gino Iannace; Antonella Bevilacqua; Amelia Trematerra

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Summary

Paper Title

ACOUSTIC TREATMENTS WITH INNOVATIVE PANELS PRODUCED FROM OLIVE OIL WASTES

Authors

Umberto Berardi
Gino Iannace
Antonella Bevilacqua
Amelia Trematerra

Modality

Onsite-Oral

Subject area

13.0. Materials & Passive Treatments: General

Publishing Date

25/09/2025

Country of Publishing

Brazil | Brasil

Language of Publishing

en-US

Paper Page

https://www.even3.com.br/anais/international-congress-exposition-noise-control-engineering/1074737-acoustic--treatments-with-innovative-panels-produced-from-olive-oil-wastes

ISBN

978-65-272-1573-8

Keywords

green materials; sustainability; noise control

Summary

In the Mediterranean region, placing olive tree is a common practice. Historically, these trees were cultivated along the coasts of Magna Graecia, and today the European community is the largest global producer of olive oil. Spain accounts for 42% of production, followed by Italy with 17% and Greece with 11%. Olive oil has been traditionally extracted for food, cosmetics, medicine, and, in ancient times, also for lighting. One significant by-product of olive cultivation is the waste generated from cut tree trunks and foliage. This study aims to describe the possibility of utilizing these waste materials for sound absorption applications. The proposed system for the acoustic absorption involves triturating small trunks into particles ranging from 1.5 mm to 4 mm. The absorption coefficients were measured for samples with varying thicknesses, providing insights into the potential of these materials for sound absorption. This approach highlights a sustainable pathway for repurposing agricultural waste. Moving from the Delany-Bazley model, this study compares the impedance tube results with the theoretically predicted ones. Finally, using a least-square fit procedure based on the Nelder-Mead method, the coefficients that best predict both the acoustic impedance and the propagation constant laws are reported.

Title of the Event: Inter-Noise 2025
City of the Event: São Paulo
Title of the Proceedings of the event: Proceedings of the 54th International Congress and Exposition on Noise Control Engineering
Name of the Publisher: Even3
Means of Dissemination: Meio Digital

How to cite

BERARDI, Umberto et al.. ACOUSTIC TREATMENTS WITH INNOVATIVE PANELS PRODUCED FROM OLIVE OIL WASTES.. In: Proceedings of the 54th International Congress and Exposition on Noise Control Engineering. Anais...Sao Paulo(SP) WTC Events Center, 2025. Available in: https//www.even3.com.br/anais/international-congress-exposition-noise-control-engineering/1074737-ACOUSTIC--TREATMENTS-WITH-INNOVATIVE-PANELS-PRODUCED-FROM-OLIVE-OIL-WASTES. Access in: 20/01/2026