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DSME Returns for More Dual-Fuel Engines
MAN Diesel & Turbo received an order for four MAN B&W 5G70ME-GI engines in connection with Daewoo Shipbuilding & Marine Engineering Co.,Ltd. (DSME) agreeing a deal with the BW Group to build two LNG carriers. The technical engine specification complies with IMO Tier II, with options to include remedies for Tier III compliance at a later stage. The 173,400 cu. m. vessels are scheduled for delivery in late 2017/early 2018 and will be built at DSME’s Okpo shipyard in Geoje, Korea. The deal represents the second LNG ME-GI contract for DSME after a previous order signed in 2012.
Compliance with IMO Tier III regulations requires an 80% reduction in NOx emissions– compared to Tier I– within the designated emission control areas (ECAs) over a defined test cycle. MAN Diesel & Turbo has developed two main approaches to comply with these challenges: Selective Catalytic Reduction (SCR), which involves the catalytically accelerated reaction of nitrogen oxides with ammonia to form water and nitrogen, and Exhaust Gas Recirculation (EGR), which works by re-circulating a portion of an engine’s exhaust gas back to the engine cylinders.
The ME-GI engine gives ship owners and operators fuel flexibility based on price and environmental considerations. MAN Diesel & Turbo sees significant opportunities arising for gas-fuelled tonnage as fuel prices rise and modern exhaust-emission limits tighten.
The G-Type
MAN Diesel & Turbo’s G-type program entered the market in October 2010 with the entry of the G80ME-C9 model. The G-types have designs that follow the principles of the large-bore, Mark 9 engine series that MAN Diesel & Turbo introduced in 2006. Their longer stroke reduces engine speed, there by paving the way for ship designs with unprecedented high-efficiency.
Such vessels may be more compatible with propellers with larger diameters than current designs, and facilitate higher efficiencies following adaptation of the aft-hull design to accommodate a larger propeller. It is estimated that such new designs offer potential fuel-consumption savings of some 4-7%, and a similar reduction in CO2 emissions. In this respect, the fuel savings and performance characteristics for propellers featuring MAN Diesel & Turbo’s unique Kappel blade design have been well documented in recent years. Simultaneously, the engine itself can achieve a high thermal efficiency using the latest engine process parameters and design features.
Since its introduction, close to 900 engines bearing the G-prefix have been ordered (including, now, 15 × G95 units), representing a total power output of some 15.9 GW. Of these, over 100 G-type engines have already entered service.
(As published in the November 2014 edition of Maritime Reporter & Engineering News - http://magazines.marinelink.com/Magazines/MaritimeReporter)
Other stories from November 2014 issue
Content
- Editorial: 75, 150 ... What’s in a Number? page: 6
- Is Glycerine the Next Marine Fuel? page: 16
- The Legal Consequences of 46 CFR Subchapter “M” page: 20
- Avoiding the Edges of the Sea page: 22
- Will Congress Pass Any Maritime Legislation in 2014? page: 26
- World’s Largest Containership First Tested at MARIN page: 30
- What’s All the Noise at IMO? page: 34
- From Security to Efficiency Modern Vessel Tracking page: 40
- Marine Insurance & the “Human Factor” page: 44
- Subsea Defense & the Changing Paradigm of Submarine Programs page: 48
- ZF Geared up for a Commerical Maritime Push page: 52
- Interview: Matthew Paxton, President, Shipbuilders Council Of America page: 58
- Offshore: Ulstein and the First U.S. Built X-Bow page: 66
- OilCraft’s TwinBow Challenge page: 74
- The McAllister Towing Legacy page: 76
- Denet Towing Repower Saves 20% in Fuel page: 92
- Eltorque Pushes into US Market page: 93
- AHTS Proves Strength on (in & through) Ice page: 94
- Kleven Orderbook Pumped up to $1.8b page: 96
- Z-Drive Use Spreads on US Inland Waterways page: 96
- Floating Production: Huge Opportunity for Shipyards, Manufacturers page: 98
- Special Vessels “Built by Flensburger” page: 100
- Danish Maritime Takes Center Stage page: 104
- Safety is Job One page: 110
- Focus: Heavy Duty Lifting page: 114
- Lifting Costa Concordia page: 118
- RV Sikuliaq: Modern Electric Propulsion & Power Management page: 122
- Talking Turbines with Bolsinger, VP at GE Marine page: 134
- DSME Returns for More Dual-Fuel Engines page: 138
- Volvo Penta Triple IPS and DP for New Fast Response Boat page: 138
- New Propulsion Couplings from Renold Hi-Tec page: 139
- Cummins Auxiliaries for New OSV page: 139
- Tier III Marine Power: Genset with SCR page: 140
- New Generation of Turbochargers page: 141
- Class Approval for Wärtsilä Steerable Thruster page: 142
- Cat, Deltamarin Develop Modular FPSO Power Unit page: 144
- WEG’s CFW11W Offers Higher Power page: 144
- John Deere Expands Tier 3 Engine Lineup page: 144
- Successful MTG Light Off for USS Zumwalt page: 145
- MJP Introduces Hybrid Waterject page: 145
- This is One, Big Specialty Valve page: 148
- DNV GL Updates Phast Software page: 148
- SGB 2000 Gyrocompass Class Approved page: 148
- B COOL A/S Acquires Memac page: 148
- Hatteland’s 20-inch Display page: 148
- New Cutting Machine from ESAB page: 148
- Shell Launches App to Track Marine Lube Orders page: 148
- Hempel Launches AvantGuard Primers page: 150
- Underwater Locator Beacons for VDR page: 150
- Automatic Lubrication System for Shell’s Prelude page: 150
- Livorsi Launches New Throttle Lineup page: 150
- Delta-Y Assembly for Offshore Oil Bulk Cement/Barite Piping Systems page: 150
- Cummins Debuts Mobile Tier 4 Generators page: 150
- New Heater Kits for Northern Sea Route Vessels page: 151
- New Plasma Cutting and Gouging System page: 151
- New Simulation Tool for Collision Reconstruction page: 151
- ACO Unveils New Plant for Upcoming Wastewater Rules page: 151
- Survitec Escape Slide for Norwegian Ferry page: 151
- New Rolling Bearing Grease from Klüber page: 151
- KO-LINK Towing Ring from Lankhorst Ropes page: 151
- New Gear Grease and Oils from Klüber page: 152
- Portable Fire Extinguishers page: 152
- Self-Leveling, Height Adjustable Chocks page: 152
- ESAB’s New Welding Wire page: 152
- PalmScope Video Inspection System page: 152
- J D Neuhaus Hydraulic Lifts page: 152
- Flow Control for Multi-pump Applications page: 152