First engine emissions reducer fitted on Chinese research vessels

03 Aug 2017
Wärtsilä NOx Reducer (NOR)

The engine exhausts of the vessels will be cleaned with a Wärtsilä NOx Reducer (NOR) enabling them to comply with IMO regulations

Oceanographers in China are to deploy the first Wärtsilä NOx abatement application in the country onboard two newbuild research vessels.

The engine exhausts will be cleaned with a Wärtsilä NOx Reducer (NOR) enabling them to comply with the IMO’s nitrogen oxides emissions rules, and to be Engine International Air Pollution Prevention (EIAPP) certified.

Peter Hansten, area sales director, marine solutions at Wärtsilä, said: " We have a strong track record in providing reliable and efficient integrated solutions for research vessels. Our proven NOR system ensures Tier III compliance.”

Each vessel will be powered by two 4-cylinder Wärtsilä 20 engines and two Wärtsilä 26 engines, one with a 9-cylinder and one with an 8-cylinder configuration. They will also be fitted with Wärtsilä retractable thrusters.

The Wärtsilä retractable thrusters have an output of 850kW and 1000kW and provide the vessels with efficient manoeuvring and station keeping capabilities, stated Wärtsilä.

All auxiliary systems are pre-mounted on the unit to minimise the space required for them and the engines will also be mounted to minimise noise and vibration and make the data collected during survey activities as accurate as possible.

The 98m long Da Yang 2 Hao and a 90m long submersible support ship are being built for the China Ocean Mineral Resources R&D Association (COMRA) at the CSSC Huangpu Wenchong Shipbuilding and Wuchang Shipbuilding Industry Group yards.

The Wärtsilä equipment will be delivered at the end of the year and the vessels are scheduled for delivery in March 2019

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