Experimental evaluation of performance of ultrasonic antifouling system on the floating model in Persian Gulf

Biological fouling is a significant problem to the shipping industry causing increases in frictional resistance, decreases in ship speed and increases in fuel consumption. It can cause blockage of intake pipes and heat exchangers and decrease efficiency of cooling system. Had The use of sonication is one of the most unconventional and innovative methods for preventing moss growth and reducing the amount of marine sediments. In this study, experimental experiments were carried out to investigate the effect of ultrasound on preventing moss growth on box shaped models by installing ultrasound in the real environment of the sea near the port of Bandar Abbas. The results showed that the effect of ultrasound on uncoated sheet is much better than coated sheet, so that the amount of rust and sediment accumulation in the bermetal box (without color) was 5% compared to the stainless steel cover in the 60-day period. It was also found that the duration of the waves affected the absorption of moss, so that the absorption of moss on an anti-corrosive box in the mode of intermittent radiation is 1.3 times as long as the waves are continuously emitted to the box surface.