Hull-cleaning technology cuts fuel consumption

A new technology to clean ship hulls without the use of abrasives that can damage or remove anti-fouling paint is said to be attracting world wide interest. Commercial Diving Services’ Hull Service Treatment (HST) in Australia says its process is cost-effective, environmentally friendly and will help vessels reduce fuel consumption.

The company’s hull cleaning service uses heat via thermal shock to kill marine algae and weed growth without its immediate removal. It is later washed from the hull by the natural pounding forces of the open sea. Anti-fouling reportedly costs shipowners worldwide about $1.85 billion a year.

A Commercial Diving Services spokesman says recent surveys suggested that the average fouling resistance for a commercial ship is 30% if the condition is not corrected. “It appears that at least 10% may be saved in average fuel costs if regular anti-fouling procedures are undertaken and for an average ship which burns 100 tonnes of fuel per day, that represents a saving of around $5,800 a day,” he was quoted saying. Commercial Diving Services was earlier this year honoured with the Eco-Innovation in Business Award by the Futureworld Eco-Technology Centre at Coniston. Last week, the HST technology won three Australian Business Awards for best new product, innovation and best eco-friendly product.