The thesis I am bringing to your attention examines the functioning and wear of the motor vehicle brake components, responsible, together with the materials used, for the emission of particulates. Although the brake is the device used to slow down or block the movement of the motor vehicle ensuring its safety, at the same time, it is the main contributor to the emission of metal particles linked to transport, causing multiple problems for human health and environment. Erroneously, one might believe that particulate emissions from a motor vehicle are mainly caused by the engine, given that combustion takes place in it. In reality, thanks to technological and scientific progress, we have arrived at a release of particulate matter emitted by the engine and greater attention to the regulation of particulate emissions from non-exhaust sources, especially brakes. In conclusion, in addition to the dedication placed in describing and summarizing the materials that are used to make the disc and the brake friction material, I have exposed what the possible solutions could be to mitigate the consequences of the use of this mechanical component, in such a way as to more easily achieve the objectives set by the European Union on reducing pollutant emissions.
La tesi che sto portando alla vostra attenzione esamina il funzionamento e l’usura delle componenti del freno dell’autoveicolo, responsabile, insieme ai materiali adottati, dell’emissione di particolato. Sebbene il freno è il dispositivo utilizzato per rallentare o bloccare il movimento dell’autoveicolo garantendone la sicurezza, allo stesso tempo, risulta essere il principale contributore dell’emissione delle particelle metalliche legate al trasporto, causando molteplici problemi alla salute dell’uomo e all’ambiente. Erroneamente, si potrebbe ritenere che le emissioni di particolato di un autoveicolo siano causate prevalentemente dal motore, visto che in esso avviene la combustione. In realtà, grazie al progresso tecnologico e scientifico, siamo arrivati a una diminuzione del particolato emesso dal motore e una maggiore attenzione alla regolamentazione delle emissioni di particolato delle fonti non di scarico, in particolare dei freni. In conclusione, oltre alla dedizione posta nel descrivere e nel riepilogare i materiali che vengono utilizzati per realizzare il disco e il materiale d’attrito del freno, ho esposto quali possono essere le possibili soluzioni per mitigare le conseguenze dell’utilizzo di tale componente meccanico, in modo tale da raggiungere più facilmente gli obbiettivi posti dall’Unione Europea sulle riduzioni delle emissioni di inquinanti.
SISTEMI FRENANTI NELL’AUTOMOTIVE E LORO IMPATTO SULL’AMBIENTE
LOIUDICE, GIANVITO
2023/2024
Abstract
The thesis I am bringing to your attention examines the functioning and wear of the motor vehicle brake components, responsible, together with the materials used, for the emission of particulates. Although the brake is the device used to slow down or block the movement of the motor vehicle ensuring its safety, at the same time, it is the main contributor to the emission of metal particles linked to transport, causing multiple problems for human health and environment. Erroneously, one might believe that particulate emissions from a motor vehicle are mainly caused by the engine, given that combustion takes place in it. In reality, thanks to technological and scientific progress, we have arrived at a release of particulate matter emitted by the engine and greater attention to the regulation of particulate emissions from non-exhaust sources, especially brakes. In conclusion, in addition to the dedication placed in describing and summarizing the materials that are used to make the disc and the brake friction material, I have exposed what the possible solutions could be to mitigate the consequences of the use of this mechanical component, in such a way as to more easily achieve the objectives set by the European Union on reducing pollutant emissions.| File | Dimensione | Formato | |
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LOIUDICE_tesi.pdf
File consultabile da postazioni biblioteca
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1.45 MB
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1.45 MB | Adobe PDF |
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https://hdl.handle.net/20.500.14253/66925