Feature 4
Norwegian coast guard gets gas
powered
Roll-Royce has announced its latest involvement with a series of Norwegian coast
guard vessels that has hybrid machinery allowing the ships to run on either diesel
fuel or LNG, giving maximum flexibility and reduced exhaust emissions.
T
he electrical power system contract was The latest coast guard trio follow offshore the front end of the Bergen engine, the same
originally awarded to Scandinavian vessel design to a large extent, in view of the gearbox driving the pump for the vessel’s FiFi1
Electric. During the build process towing requirement. They are 93m long, 16.6m fire-fighting system.
Scandinavian electric became part of beam, and classed with DNV. An unusual A flap rudder provides steering, assisted
Rolls-Royce, with the main diesel engine, hybrid machinery system has been adopted, for manoeuvring and dynamic positioning
the propulsion system, deck machinery and with liquefied natural gas (LNG) and diesel by 735kW tunnel thrusters fore and aft, and
controls in which it was to supply. oil as alternative fuels and both mechanical an 883kW vertically retractable azimuth bow
KV Barentshav is the first to go into and electrical transmissions. The single thruster, all from Rolls-Royce. On trials, KV
service, to be followed by KV Bergen and 4m diameter controllable pitch (CP) main Barentshav achieved a bollard pull of just over
KV Sortland. The building contract went to propeller can be mechanically coupled to the 100tonnes. On the mechanical drive, the vessel
Myklebust Verft, part of Kleven Maritime Bergen 32:40 L8P diesel engine, which is rated will reach speeds up to 18knots, while 20knots
group, based on hull steelwork fabricated at 4000kW, and/or to a 2500kW electric motor is obtainable with the electrical addition. On
in Romania. KV Barentshav is based in the feeding power into the reduction gearbox. gas power alone the ship can sail at up to
northern part of Norway and its duties The motor is supplied by a selection of 15.5knots.
include; Exclusive Economic Zone (EEZ) gensets, powered by Mitsubishi high speed In keeping with a long standing
protection with fisheries control, emergency gas engines in a separate engine room. LNG arrangement, the three Norwegian coast
towing, search and rescue, and pollution is bunkered into a single 234m
3
insulated flask guard vessels are privately owned, by
prevention. Given these diverse duties, the and the liquid is warmed to low pressure gas Remøy Management. The vessels are on 15
vessel has a propulsion system that is efficient before being fed to the engines. The main year charters to Kystvakt. KV Barentshav
under widely varying conditions of load and engine can also generate electricity by means has accommodation for up to 40 persons
speed. of a shaft generator driven from a gearbox on and an 18-person crew. NA
STX delivers Stolt Groenland
STX Norway has announced the delivery of the parcel tanker Stolt Groenland to
owner Stolt Tankers BV.
S
tolt Groenland is the fifth vessel depth of 15.6m, and a deadweight of 70% of Stolt Tankers’ business is, in
in a series of six advanced parcel 43,500dwt. fact, contract based. Granted, this
tankers to be delivered to Stolt The vessels are double-hulled strategic focus prevents us from fully
Tankers BV. The vessel will join the and meet both Marpol Annex I and benefiting from high spot-market
other four vessels that have entered Annex II cargo requirements and are prices at the top of the cycle. But we
service from Stolt-Nielsen’s hub in International Maritime Organization have always held that the trade-off is
Rotterdam and will service the rest of (IMO) ship type I, II and III capabilities. more than justified by the downside
the world. The vessels are also equipped with 24 protection afforded at the bottom of
The fore and aft sections of the vessel stainless steel tanks and 15 coated tanks the cycle, as well as the benefits of the
were built at Wadan Yards Okean. The and are capable of transporting a range close working relationships we enjoy
mid section, with stainless steel tanks, of difficult-to-handle cargoes. with our contract customers.”
was constructed in Florø, Norway. Stolt Tankers says that all vessels To date four vessels Stolt Sagaland,
The sections were joined together in ordered will be delivered. Jacob Stolt Sneland, Stolt Island and Stolt
Florø, where also the final outfitting Stolt-Nielsen, Chairman, Stolt-Nielsen Norland have been delivered to Stolt
and commissioning of the ship was S.A., said: “…Stolt is unique in that the tankers BV; with the last of the vessels,
done. Stolt Groenland has a length focus of our business is on long-term hull number 154, scheduled to be
of 182m, a breadth of 32.2m with a contracts, not the spot market. About delivered in March 2010. NA
The Naval Architect January 2010 69
NA Jan 10 - p69.indd 69 12/01/2010 10:30:00
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