LR-Approved Design Calls for Wärtsilä 20DF Engines
Netherlands-based Kooiman Marine has developed a push boat with a liquefied natural gas-diesel dual fuel propulsion system. The design is Lloyds Register- and CCNR/Central Commission for the Navigation of the Rhine-approved, Kooiman says.
“The newly designed push boat has four Wärtsilä 6L20 Dual Fuel engines plus a DF auxiliary engine,” the company said. The main engines are protected by a double-walled gas fuel system to reduce a engine room hazards.
The design employs batteries to store a surplus of power for sailing upstream, and enabling a downstream trip on only two engines using stored power for ship systems.
Retractable Flanking Wings
“It is not only the LNG installation that will reduce emissions dramatically,” states a Kooiman release: “The four-propulsion-line concept with larger overall propeller diameter, tunnel shaped hull and a complete novel design of retractable flanking wings will add another 16% to total ship’s efficiency, that also will reduce emissions on both sides of the chain. (fuel production and consumption).”Contact information is only available to premium subscribers. Click here to purchase a premium subscription.
Source: Kooiman Marine with HHP Insight follow-up