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Articoli Scientifici

V. 48 N. 1 (2024)

Design di pannelli fonoassorbenti sostenibili costituiti da macroalga bruna Sargassum

DOI
https://doi.org/10.3280/ria1-2024oa17362
Inviata
27 febbraio 2024
Pubblicato
22-07-2024

Abstract

L’alga marina bruna Sargassum costituisce un problema ambientale sempre più importante sulle coste affacciate all’Oceano Atlantico, ed in particolare nella zona caraibica e nell’africa equatoriale. Enormi distese galleggianti di queste alghe si ammassano in mare e lungo le coste rendendo più difficile le attività turistiche e di pesca. Negli ultimi anni si è cercato di sviluppare diversi progetti che consentano l’utilizzo di tali alghe come risorsa per varie applicazioni industriali. In questo ambito, nel seguente articolo verrà proposto un percorso di design di pannelli fonoassorbenti ricavati a partire da Sargassum essiccato al sole, che comprende una caratterizzazione acustica e fisica del materiale in funzione della sua densità apparente, una modellazione analitica del campo acustico all’interno del materiale considerato come un fluido dissipativo equivalente ed una proposta prototipale di pannelli modulari fonoassorbenti con notevole contenuto di design.

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