Emergency Response Tugboat 'Nordic' – Diesel Engines & Crew Kept Gas-safe

By George Backwell at September 04, 2011 05:16
Filed Under: General
North Sea emergency response tugboat Nordic has a remarkable ability to move in close to an oil tanker or a liquid natural gas carrier leaking toxic and flammable gas in order to fight any fire and take the stricken vessel in tow. Nordic has been strategically stationed by the German authorities on the North Sea coast, ready, willing and able to cope with that sort of eventuality since early 2011.In an environment heavily contaminated with gas the crew would be encapsulated safely in the tugboat’s air-sealed superstructure stronghold to breathe from an eight-hour supply of  oxygen; all the while, ingeniously gas-protected MTU (Tognum subsidiary MTU Friedrichshafen) diesel engines would continue to pound away down below decks. North Sea Rescue Tugboat Nordic: Photo credit – Pedwiki   Gas-protected MTU Diesel EnginesNordic’s main propulsion engines are two specially equipped 20-cylinder MTU Series 8000 diesel engines rated at 17,200 kW, while two MTU type... [More]

America's First LNG Dual-fuel PSV on the Horizon

By George Backwell at August 07, 2011 05:17
Filed Under: Company News, General
  “It is a matter of when, not if, LNG will be a commonly-selected fuel source and we need a sound basis for ship designs." So said Christopher J. Wiernicki, President of  ABS a few months ago as he announced his classification society’s issue of a technical guide to the installation of LNG propulsion and auxiliaries in ships. Cut to the chase, and just last week Harvey Gulf Corp. said that the next phase of their ‘Green’ constructions will include two dual-fuel Platform Supply Vessels (PSV’s) which will have the distinction of becoming the first ever U.S. Flagged PSVs to be powered by LNG. Gulf International Marine’s Chairman & CEO Shane J. Guidry said that a contract will be awarded to a U.S. shipyard on or before August 28, 2011. PSV SV310DF Design:    Courtesy of  STXM   U.S. Ship Registry Slow to Embrace LNG Marine Diesel Engine TechnologyDuel-fuel diesel engines (able to burn natural gas ignited by liquid... [More]

LNG powered cruise ship

By Keith Henderson at August 02, 2011 07:18
Filed Under:
Resulting from a cooperation of the French STX Europe and Stirling Design International, a radical new concept for a cruise ship called EOSEAS was developed. EOSEAS is a cruise ship of 105,000 dwt: Electric power is provided by four dual fuel LNG diesel electric gensets each of 8 MW, supplemented by photovoltaic panels on side and upper deck. There are four screws, two pump propellers with shaft lines on the outriggers and two pump propellers on the main hull. The design claims to have met its objective of reducing green house gas (GHG) emissions by 50 per cent, the reduction in CO2 was aimed at 50 per cent but is expected to be 52 per cent [More]

LNG Powered PSV Order

By Keith Henderson at May 03, 2011 08:37
Filed Under:
Kleven Maritime, Norway has received and order from Rem Offshore to build one LNG powered Platform Supply Vessel for delivery in December 2012. This new vessel is of the type VS 499 LNG PSV from Wärtsilä Ship Design and will be built by Kleven Verft in Ulsteinvik, Norway. She has a length of 89,6 meters, beam 21.0 meters with a deck space of 1 030m2 and dead weight of about 6,500 tonnes. A twin fuel LNG/diesel electric propulsion configuration is used. She is built to Light ice class (Ice C) classification, is equipped for oil recovery and rescue missions as a Standby Vessel. [More]

The Application of LNG as a Fuel for Medium and High Speed Ferries

By Keith Henderson at April 19, 2011 08:26
Filed Under:
Austal Ltd, has just completed an 18 month study on the development of several new types of fast ferry. Their study concluded that the most promising solutions for future regulations are multi-hulled HSC code compliant ferries running at a significantly slower speeds than present fast ferries. Austal gives three examples of new designs using LNG as the main fuel. The largest example is a 127 m trimaran ferry powered by twin dual fuel GE LM2500 gas turbines. A smaller 102 m trimaran ferry uses three 4 MW Wärtsilä 9L34DF dual fuel, medium speed engines. The smallest design example is a 72 m catamaran ferry using a dual fuel diesel/LNG electric propulsion system of four 2.3 MW Bergen dual fuel engines. [More]

DNV Quantum 9000 Concept Container Ship

By Keith Henderson at March 15, 2011 04:47
Filed Under:
Yesterday in London, DNV announce the new Quantum 9000 concept container ship with twin island layout. Considerably larger than the Quantum of 6,200 TEU announced last year, the new 9000 model has a design speed of 22 kn and target capacity of 9,000 TEU yet will be able to use the post 2014 Panama Canal opening up routes from East Asia to the west and east coast ports in USA. The new ship is powered by a single slow speed dual fuel MAN B&W 9S80ME-C9.2-GI rated at 40 MW at 78 rpm. An Exhaust Gas Recirculation (EGR) system on the engine reduces NOx emissions substantially and the addition of a Waste Heat Recovery (WHR) system improves overall efficiency. The payback time for the increased cost of this ship with all its features is estimated to be five to eight years depending on the cost of fuel. [More]

Refineries May Foil IMO Aims to Cut SOx Emissions in Exhaust Gas

By George Backwell at January 31, 2011 00:31
Filed Under: General
'Refiners threaten anti-pollution efforts in shipping', blared the caption of a Reuters article by correspondents Kan and Fabi on 17, January 2011, then coincidentally, came news a couple of days later that Wärtsilä was to retrofit the Containerships Vll, 13,995 dwt,  (owned by Helsinki based Containerships Ltd. OY) with their diesel engine exhaust-gas scrubber. Wärtsilä's first ever installation of a commercial marine scrubber (to serve their W7L64 main diesel engine) is intended to enable the ship to meet impending targets for reduced exhaust gas emissions of SOx in Emission Control Areas's while continuing to burn diesel fuel with sulfur content above the set limits. Containerships Vll: Photo Credit, Jens Boldt Bunkers With Minimal Sulfur to Become Scarce? Experts in the field pronounce that SOx emissions in diesel engine exhaust gas‚ which mostly comprise sulphur dioxide with a small amount of sulphur trioxide‚ are a function of the amount ... [More]

Eidesvik Orders LNG Powered PSV from Wärtsilä

By Jocelyn Redfern at December 28, 2010 11:19
Filed Under: Company News
Wärtsilä Corporation, Trade & Technical Press release, December 2010 [More]

Dual-fuel to LNG Marine Engines – One Step Closer

By George Backwell at December 26, 2010 23:00
Filed Under: General
Dual-fuel marine diesel engines are increasingly being fitted to new-buildings where twin benefits of negligible noxious gas emissions (thanks to squeaky-clean combustion) and  economical performance come to bear when the engine operates in LNG mode. Indeed analysts are agreed that it is only the sparse availability of LNG bunkering facilities world-wide that limits installation of far greater numbers of dual-fuel systems at a time when prices for oil fuels are uncertain, and when environmental regulations are becoming increasingly stringent. For vessels with ready access to LNG as a fuel source, there has been a natural progression in the fitting of dual-fuel engines, beginning with large LNG carriers themselves using boil-off cargo gas when loaded.  Now that progression has extended to include far smaller ships (with a no less an important role in drilling operations) which also have ready access to the fuel  – LNG Platform Supply Vessels (PSV's). PSV's in the... [More]

New Era for Tanker Shipping

By Keith Henderson at December 07, 2010 07:43
Filed Under:
Yesterday in London, the DNV classification society unveiled the Triality VLCC concept vessel. The vessel is fueled by liquified natural gas (LNG), has a special hull shape that does not require the use of ballast water and virtually eliminates harmful exhaust emissions. A further bonus is its attention to the problem of vapors emitted by the cargo and providing a solution to use them. The LNG fuel carried is sufficient for 25 000 nautical miles of operation. The new vee shaped hull with revised cargo tank layout dispenses with the use of ballast water in the empty condition: rendering a higher net efficiency for a round trip. Cargo vapors are collected , liquefied and stored as LPG for later use during the trip. DNV estimate that the capital cost of their new design will be 10-15 per cent more however the through life cost saving will be 25 per cent less than an equivalent VLCC of conventional design. [More]

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