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Hydroniq Coolers to equip Donsötank’s new tankers

March 25, 2024

25 March 2024 – Norway-based Hydroniq Coolers has been contracted by Wuhu Shipyard Co. Ltd. to deliver a hull-integrated seawater cooling systems to two LNG-fuelled oil product and chemical tankers that the Chinese yard is building for Swedish tanker operator Donsötank.

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

Hydroniq Coolers will deliver both hull-integrated Rack seawater cooling systems by the end of the second quarter this year. The construction and equipment of the two vessel newbuilds – W2381 and W2382 – will follow the proven blueprints of Donsötank’s current oil products and chemical tankers, Prospero and Pacifico.

“We will manufacture and deliver our Rack systems in less than three months, which is a quicker turnaround than we normally have. This is possible as the systems are copies of former systems that we have delivered to Donsötank’s vessels,” says Jan Inge Johannesen, sales manager at Hydroniq Coolers.

The Rack system is designed to increase intervals between each clean and reduce cleaning time when cleaning is necessary. It does not require dry-docking for maintenance as the coolers can be extracted from below the engine room, even while at sea.

The seawater cooling system for Donsötank’s new tankers will also feature a dedicated chilled water bundle. This bundle allows seawater to bypass the chilled water unit and directly into the Rack cooler when the seawater temperature is below 14 degrees Celsius.

“The solution with the dedicated chilled water bundle reduces energy consumption further and reduces the system’s maintenance requirements. Both will decrease Donsötank’s operating expenditure for these vessels,” adds Jan Inge Johannesen.

Hydroniq Coolers will manufacture the Rack seawater coolers at its headquarters at Ellingsøy outside Ålesund, Norway, and ship the systems to Wuhu Shipyard. Hydroniq Coolers has not disclosed the value of the contract.

The two dual-fuel 22,500 dwt oil and chemical tankers are expected to be delivered from Wuhu Shipyard in 2025. They will have a cargo capacity of 27,800 cubic meters, a length overall (LOA) of 167 meters. The ships will feature dual-fuel propulsion (LNG-LBG/Diesel), shore power connection, and a waste heat recovery system. The vessels’ cargo tanks will be coated in a way to allow the company to load a wide range of emerging cargoes including bioproducts, biofuels, animal fats, and other upcoming commodities in the industry.

Hydroniq Coolers is a supplier of cooling solutions and heat exchangers to the shipbuilding market and selected land-based applications.

For further media information, please contact:

Endre Aaberg Johansen, Corporate Communications AS, tel: +47 41 61 06 05, email: endre.johansen@corpcom.no