ANTIFOULING SEA AND INLAND VESSELS

  • Contains no biocides such as copper

  • Fuel saving up to 50% ( source TNO report )

  • CO2 reduction up to 50%

  • Fast payback time

  • Environmentally friendly

USAF (UltraSound AntiFouling) systems are used on ships to keep the ship’s skin and box coolers free of fouling such as barnacles, mussels and oysters.

A successful test has been carried out on the Nova Cura. Two years after starting the test a positive inspection in Montenegro was carried out.

The pressure waves have a repellent effect on larvae of crustaceans such as barnacles, mussels and oysters. This means that larvae do not like to be in the pressure waves of the transmitter. That is why larvae will not attach to, for example, ships or coolers in a protected area.

Ultrasonic sound waves therefore prevent the larvae of crustaceans from attaching. USAF works preventively. Fouling must be prevented by permanent protection. It is not possible to remove crustaceans that already have been attached.

For various reports regarding testing see:
Artikel Nova Cura   Article in trade magazine shipping companies: Schuttevaer  (Dutch)
AA report  final report test Nova cura after 6 months
Inspection report Montenegro   Reporting Nova Cura after 2 years

 

COMBINATION WITH A SO CALLED “EASY RELEASE COATING”.

In combination with a so-called “easy release coating”, tests have shown that also the soft macro fouling such as thread algae and seaweed do not adhere. See “Summary test NIOZ“.

Only slime and microalgae were still present on the test plates. Slime and microalgae are not the biggest problem with fouling. A portion of the slime will be removed by sailing.

A similar test was also carried out in Fort Lauderdale in the USA, with similar positive results.

REGULATION COPPERING ANTIFOULING PAINTS AND BUYER IONIZATION

According to several experts, copper-based paint and other copper-producing equipment will soon be banned. When exactly is not yet known. For the yachts the use of copper-based paint is already banned in several countries.

Articles that go into this can be found at the following links.

USAF in combination with an “easy release coating” is currently the best solution to prevent fouling without the use of biocides

BOX COOLERS.

Various tests have shown that USAF can keep the box coolers free of fouling. Last year, 2017, a test was done at a ferry in Sweden.

Starboard was not USAF installed and port side was. Other protective equipment were not present, no ICAF. See enclosure box coolers. The USAF transmitters were installed near the coolers that normally caused the most problems. After 11 months these coolers were virtually clean and they achieved the full cooling capacity. The box coolers on the starboard side had grown.

EFFECTS ON SEA MAMMALS

The pressure waves have no effect on larger organisms such as fish. Investigation by the US Navy with our equipment shows that even marine mammals, who use ultrasound to communicate and turtles, have no adverse effects and do not respond to our transmitters.

Moreover, the equipment is only working when the ship is sailing below a certain speed and when the vessel is in the harbor. Sea mammals do not belong in ports anyway.

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