This work is related to a feasibility study for the implementation of an active noise control system to reduce the hydraulic turbomachine's noise in the Presenzano power plant. Previous studies showed that interested turbines are low frequencies noise sources, generating pure tones at 150 and 200 Hz (third and fourth harmonics of the turbine's BPF). At these frequencies passive noise control systems are ineffective in front of relevant costs and an active approach was so decided to be tested. In accordance with a classical ...
Active noise within the generating/pumping groups of a large hydroelectric plant / Lecce, Leonardo; Viscardi, Massimo; Bruno, Maja; Vincenzo, Limone; Mario, D?ischia; Francesco Di, Maso. - In: THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA. - ISSN 0001-4966. - STAMPA. - 105:(1999), pp. 1301-1301. [10.1121/1.426644]
Active noise within the generating/pumping groups of a large hydroelectric plant
LECCE, LEONARDO;VISCARDI, MASSIMO;
1999
Abstract
This work is related to a feasibility study for the implementation of an active noise control system to reduce the hydraulic turbomachine's noise in the Presenzano power plant. Previous studies showed that interested turbines are low frequencies noise sources, generating pure tones at 150 and 200 Hz (third and fourth harmonics of the turbine's BPF). At these frequencies passive noise control systems are ineffective in front of relevant costs and an active approach was so decided to be tested. In accordance with a classical ...I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.