Donsö Shipping orders engine coolers for new chemical tankers

Sep 06 2019

Swedish shipowner Donsö Shipping has placed an order with Norwegian technology company Hydroniq Coolers to deliver hull-integrated seawater cooling systems to two newbuilding oil products and chemical tankers.

They are being built at Wuhu Shipyard in China for delivery in 2021.

The vessels were designed by FKAB, based on a low-resistance hull design.

“The cooling principle of the Rack cooler secures safe, continuous and maintenance friendly cooling of the equipment on board the vessel in addition to being very energy efficient. Low maintenance requirements translate to lower operating expenditure for Donsö Shipping,” said Håvard Tveitane, Hydroniq Coolers sales manager.

Hydroniq Coolers will deliver both Hydroniq Rack seawater cooling systems next year. The company did not disclose the value of the contract.

The Rack seawater cooler’s unique feature is that it is integrated in the hull below the main engine room of the vessel. Marine cooling systems are used to reduce temperatures in the ships’ engines and other auxiliary systems through the use of seawater.

It is designed to increase intervals between each clean and reduce time when cleaning becomes necessary. No drydocking is required for maintenance and cleaning, as the coolers can be extracted from below the engine room, even while at sea.

Donsö Shipping’s seawater cooling systems will also feature a dedicated chilled water bundle, which allows seawater to bypass the chilled water unit and flow directly into the Rack cooler when the seawater temperature is below 14 deg C.

“This ingenious solution cuts energy consumption considerably, plus it further reduces maintenance requirements on the system. We are proud to be a supplier for these vessels,” Tveitane added.

The two 167.7 m long vessels will be built to Ice Class 1A, will be LNG powered, fitted with a shore connection for port operations, be prepared for a 1,000 kWh battery-pack to be fitted, plus several other advantages.

Each vessel will have a deadweight of 22,000 tonnes and a cargo capacity of 28,000 cu m.

The company is owned by Norwegian investment company SMV Invest (formerly Sperre Mek. Verksted). 


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