Slow Steaming Upgrade Kit Order For Wärtsilä
Wärtsilä has signed a contract with the German shipowner Jüngerhans, located in Haren (Ems), Germany, to refit two of its vessels with Wärtsilä Slow Steaming Upgrade Kits to cut fuel costs. The 1997-built vessels are equipped with seven-cylinder Wärtsilä RTA62U main engines.
In response to over-capacity in the market and a desire to cut overall fuel consumption, during recent months charterers have adjusted both their services and the speed of their ships. Slow steaming has become an established way of operating vessels, particularly in the container segment. Slow steaming offers clear benefits for charterers in terms of substantially reduced fuel consumption and considerable savings in overall ship operation costs.
For ships powered by Wärtsilä RTA and RT-flex low-speed engines with more than one turbocharger, Wärtsilä introduced its Slow Steaming Upgrade Kit in 2008. The kit enables ship owners and operators to achieve savings in fuel costs by allowing them to slow steam their ships. "The Slow Steaming Upgrade Kit both extends the load range of the engine for continuous operation, and significantly reduces BSFC (brake specific fuel consumption) in the low-load range," explains Jürgen Gerdes, Director, Services, Wärtsilä in Switzerland.
With the order from Jüngerhans, the total amount of ordered upgrade kits has increased to twelve, and Wärtsilä is already able to assess the initial operating results for its Slow Steaming Upgrade Kit. For an 8-cylinder Wärtsilä RTA62U engine, it was possible to achieve fuel savings of up to 6-10 g/kWh in the optimal load range. On a 12-cylinder Wärtsilä RT-flex96C engine equipped with three turbochargers, the measured fuel savings of 8 to 12 g/kWh were slightly higher because the achievable savings are related to the number of turbochargers.
For more information: www.wartsila.com