Efficiency PACKS for installation vessel
The Green Jade will have four Wärtsilä 46DF engines on board, each equipped with two efficiency PACKs which use the waste heat from the engine cooling water and exhaust gases. A heat exchanger transfers this waste heat to the organic rankine cycle circuit, where the refrigerant is evaporated and routed to the expansion machine as superheated vapour.
The highly pressurised 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.
“Environmental considerations are an important element of Green Jade’s design,” said Hedwig Vanlishout, chief executive of CDWE. “Waste heat recovery is a key technology in this respect, in addition to various other fuel-saving measures on board of the vessel. We chose Orcan Energy because the efficiency PACKs adapt optimally to load fluctuations and also work well at low load.”
The 216.5m Green Jade will be equipped with a 4,000 tonne capacity crane and dynamic positioning system and 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.
