Sea-trial verification of ultrasonic antifouling control.
Biofouling
; 34(1): 98-110, 2018 01.
Article
em En
| MEDLINE
| ID: mdl-29231075
ABSTRACT
An ultrasonic antifouling treatment was applied to a 96,000 m3 class drill-ship to verify its feasibility through a sea-trial. Soon after the hull cleaning had been performed, six ultrasonic projectors were evenly deployed around the starboard shell plate. Driven by a 23 kHz sinusoidal ultrasound in an intermittent manner, the projectors emitted a high-intensity sound reaching 214 dB at the source level causing cavitation around the adjacent water and eventually deterring the settlement of marine fouling organisms. Underwater photographs acquired after four months showed fairly clean slabs on the starboard side, but heavy fouling on the port side. This experiment revealed that ultrasound treatment is a promising method for inhibiting fouling accumulation, even for large-scale ship applications.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Navios
/
Incrustação Biológica
/
Ondas Ultrassônicas
Idioma:
En
Revista:
Biofouling
Assunto da revista:
BIOLOGIA
Ano de publicação:
2018
Tipo de documento:
Article