The CleanTech company - Orcan Energy has signed a contract with CDWE for the supply of eight efficiency PACKs for the recovery of waste heat on board the vast floating offshore installation vessel - 'Green Jade'.
The EPCI company - CDWE is a joint venture of CSBC, one of the largest shipbuilders in Taiwan, and the European marine contractor DEME Offshore.
First-class equipment for the 'Green Jade'
The ship will be equipped with a crane with a capacity of 4,000 tons and a Dynamic Positioning System (DP3). The deck space of the vessel has been maximized so that a large number of the heaviest monopiles as well as wind turbine components and structures can be transported in a single shipment and installed at great water depths.
With a length of 216.5 meters, the ship can accommodate a crew of up to 160 people
This makes the ship suitable for the transport and installation of next-generation foundations and huge multi-megawatt wind turbines even under the most difficult conditions.
With a length of 216.5 meters, the ship can accommodate a crew of up to 160 people. The ship is currently being built at the Kaohsing shipyard in Taiwan and is scheduled for deployment in 2022 in the flourishing local offshore wind market.
efficiency PACKs
To make profitable use of the waste heat on board and to save energy, the four Wärtsilä 46DF engines on board are each equipped with two efficiency PACKs. The efficiency PACKs use the waste heat from the engine cooling water and exhaust gases. A heat exchanger transfers this to the ORC circuit. Here, the refrigerant is evaporated, a non-toxic, non-flammable hydrocarbon, and routed to the expansion machine as superheated vapor.
The highly pressurized refrigerant is expanded, thereby driving the rotary screws in the expansion machine. The rotational energy is used to drive a generator that produces electricity. When all engines are running, more than 500 kW of electrical power is generated from waste heat on board the 'Green Jade'.
Waste heat recovery
"Environmental considerations are an important element of Green Jade’s design. Waste heat recovery is a key technology in this respect, in addition to various other fuel-saving measures on board the vessel. We chose Orcan Energy because the efficiency PACKs adapt optimally to load fluctuations and also work well at low loads," says Hedwig Vanlishout, CEO of CDWE.
environmentally friendly
"Many players around the world are working on making ships more environmentally friendly," says Andreas Sichert, CEO of Orcan Energy, adding "The fact that we as a German CleanTech company are now even on board Taiwan's first offshore installation ship with several of our waste heat recovery solutions and thus part of a huge wind farm project in Asia confirms this trend. The use of excess waste heat is an important and economical component of the decarbonization of shipping."
