Wärtsilä successfully tests new 2-stroke dual-fuel gas engine technology to comply with IMO Tier III emission limits
The on-going tests show that the Wärtsilä 2-stroke gas engine performance is in compliance with the upcoming IMO Tier III NOx emission limits, thereby setting a new benchmark for low-speed engines running on gas.
Wärtsilä, the marine industry’s leading solutions provider, has successfully tested its new low-speed gas engine technology in trials conducted at the company’s facilities in Trieste, Italy. The tests were carried out on September 19 in conjunction with Wärtsilä’s Licensees Conference in Trieste. Wärtsilä successfully demonstrated that the engine performance fully complies with the upcoming IMO Tier III nitrogen oxide (NOx) limits, thereby setting a new benchmark for low-speed engines running on gas.
The new RTX5 2-stroke test engine is part of Wärtsilä’s 2-stroke dual-fuel gas engine technology development programme. This is an important part of the company’s strategy to lower emissions, increase efficiency and to develop its low-speed engine portfolio to include dual-fuel gas engines alongside its medium-speed dual-fuel engines.
World Premiere of the MAN B&W ME-GI Engine. Gas engine debuts at ceremony in Copenhagen.
At a major event at its Diesel Research Centre in Copenhagen in May 2011, MAN Diesel & Turbo presented its ME-GI gas engine to a 300-strong invited audience of customers, licensees and journalists. The unveiling of the two-stroke engine represented the culmination of many years’ work that began in the 1990s with the company’s prototype MC-GI dualfuel engine.
First Orders Signal Acceptance of G-Type Engine
MAN Diesel & Turbo’s assessment of the two-stroke market has borne fruit with a number of Greek shipowners showing concrete interest in the company’s new, G-type, ultralong-
stroke engine programme.
Keep Your Engines in Tip-Top Condition PrimeServLab monitors engine fluids as part of preventative maintenance package
Norwegians Take Delivery of MAN-Powered Offshore Vessel
GC Rieber Shipping of Bergen, Norway recently took delivery of the offshore ROV-survey vessel – the ‘Polar King’ – constructed by CNP Freire shipyard in Spain.
The newbuilding has a diesel-electric propulsion system that features 6 × MAN 9L21/31 engines and will support activities in the hydrocarbon sector.
Independent Brand More Than Ready to Salvage Success On-site machining specialist ‘Metalock Denmark’ primes itself for expansion
MAN Diesel & Turbo Technology Delivers Clear Boost to Efficiency
MAN Diesel & Turbo used the world premiere of its MAN B&W ME-GI gas engine in Copenhagen to present efficiency technologies for its twostroke engines, namely its WHR (Waste Heat Recovery) systems, that include its TCS-PTG (Turbo Compund System with Power Turbine and Generator) turbines, and which are offered as an integrated solution.
World’s Largest Bulk Carrier Uses Low-Speed B&W Power on Chinese Route Massive dimensions
Korea’s Daewoo Shipbuilding & Marine Engineering recently held a naming ceremony for what is the world’s first 400,000-dwt VLOC. At 362 m long, 65 m wide and 30.4 m high, the ‘Vale Brasil’ is the world’s largest bulk carrier and is powered by an MAN B&W 7S80ME-C8 two-stroke engine.
Chinese Turbochargers Prepare to Grow Strategic relocation to Changzhou will galvanise domestic production
MAN Diesel & Turbo has consolidated its Chinese turbocharger organisation and moved its existing production facilities from Shanghai the short distance northwest to the former
‘MAN Turbo’ plant at Changzhou.
Cat® 3500 Series Marine Emissions Kits Certified by the EPA
Caterpillar Marine Power Systems and Caterpillar Emissions Solutions are pleased to announce that the United States Environmental Protection Agency (EPA) has certified Cat® 3500 Series Marine Emissions Kits according to EPA Rule 40 CFR Part 1042. This Marine Remanufacture Program applies to many commercial engines flagged or registered in the United States, and the requirements include a 25 percent particulate matter reduction at overhaul. By replacing the mechanical unit injector (MUI) system and other associated components on the engine, the upgrade kits offer vessel owners an in-hull solution that exceeds the requirements, and offers operational benefits.
Emissions upgrade kits for Cat 3500 Series marine propulsion engines are currently available for order from Caterpillar. The kits are also available internationally for customers but compliance will depend on local acceptance. Customers should contact their local Cat Dealer to determine applicability based on existing engine serial number and operation profile.
Please watch customer testimonials on the 3500 Emissions Upgrades kits.
Cat Marine 3500 Emissions Upgrade Customer Testimonial Testimonial on an emissions upgrade from MUI to EUI of a Cat 3500 on the vessel "Fierce Allegiance".
Man diesel & turbo launched new two-stage-turbocharged
18V48/60TS diesel engine
The engine was developed at MAN Diesel & Turbo’s headquarters in Augsburg, Germany, and is available in an 18-cylinder vee-configuration based on the wellknown and reliable engine – the MAN 48/60B type. The 48/60TS is assembled in Saint-Nazaire, France.
Since its launch in 1988, MAN Diesel & Turbo has sold nearly 800 × 48/60 units, bound for a broad range of power-generation and marine-propulsion applications. Thanks to its high efficiency, the 18-cylinder variant is the 48/60 engine family’s bestselling configuration.
The overall design of the two-stage turbocharged 18V48/60TS has been kept as simple as possible and differs in the form of just a few modifications from the standard engine. These include:
• modified fuel-injection nozzles for the higher power-output range
• a three-ring piston with higher compression ratio
• a modified camshaft for enhanced Miller timing
• an additional exhaust-gas bypass valve to avoid smoke during start-up. V48/60B cross section
The high-pressure turbocharger is directly mounted to the engine with the lowpressure turbocharger located upstream on its own steel frame. The combustion-air and exhaust-gas piping between both turbochargers is fitted with compensators, ensuring complete insulation from vibrations.
The two-stage turbocharged 18V48/60TS engine offers:
• an increased continuous power-output up to 1,200 kW/cyl
• NOx emissions of 1480 mg/Nm³ (@15% O2) while operating at an increased output of 1,200 kW/cyl
• a very-low specific fuel oil consumption of 171.1 g/kWh while retaining an output of 1,050 kW/cyl
• flexible operation between 1,050 and 1,200 kW/cyl that gives operators the choice between low fuel consumption or high power output
• the possibility to retrofit existing 18V48/60 engines to two-stage turbocharged installations.
The 18V48/60TS engine pictured on the testbed at MAN Diesel & Turbo, Saint Nazaire, France
Wartsila to supply liquid bio-fuel powered main engines for new Finnish cargo vessel
Wartsila's leading engine technology offers flexibility which enables switching of fuels without any interruption in operation should the need arise. This will be the first installation ever where a European commercial shipping operation is going to permanently use liquid bio-fuel.
Wartsila has been contracted by the STX Finland shipyard in Turku, Finland, to supply the main engines for a new multi-purpose cargo vessel "Aura II".
The vessel will be powered by three Wartsila 6L20 main generating sets, capable of operating on various types of liquid bio-fuels (LBF) fulfilling Wärtsilä’s liquid bio fuel specification. Liquid bio-fuels can be produced from various raw materials of vegetable and non-vegetable origin. The generating sets are also capable of using marine diesel oil as a backup fuel.
The onboard fuel system is prepared for regular operation with LBF, and the sea acceptance trials for the owner are to be conducted using liquid bio-fuel. The new vessel, the ‘Aura II’, is a deck carrier scheduled to be delivered in spring 2012.
This will be the first installation ever where a European commercial shipping operation is going to permanently use LBF as fuel.
The ‘Aura II’ will be a multi-purpose dry cargo ship that can also be used for oil recovery operations in the Baltic Sea. In addition, the ship is designed for the transport of heavy modules to the offshore industry in the North Sea basin. When not operating as a deck carrier, the 4,350 dwt ship is designed also as a container carrier.
Advanced training on the Wärtsilä engines will be provided to the operator crews at the Wärtsilä Land & Sea Academy training centre in Turku, Finland. Wärtsilä already maintains and services the flagship vessel of Meriaura, the m/s ‘Aura’, under a maintenance contract agreement.
MAN diesel & turbo presented Gas Two-stroke Diesel Engine.
20 May, MAN Diesel & Turbo presented its ME-GI gas engine at Diesel Research Centre in Copenhagen. This is the culmination of many years’ work that began in the 1990s with the company’s prototype MC-GI dual-fuel engine.
Today’s successful, full-scale demonstration and performance verification test of the GI principle for all kinds of marine applications was carried out on MAN Diesel & Turbo’s 4T50ME-X R&D research engine, which has been rebuilt as a 4T50ME-GI engine operating on natural gas. Korea’s Daewoo Shipbuilding & Marine Engineering Co., Ltd. (DSME) has provided the ME-GI’s pertaining, high-pressure, cryogenic gas-supply system according to the terms of a development agreement signed in February 2010.
MAN Diesel & Turbo sees significant opportunities arising for gas-fuelled tonnage as fuel prices rise and modern exhaust-emission limits tighten.
MAN B&W ME-GI (Gas Injection) two-stroke engines possess economical and operational benefits compared to other, low-speed engine plants, irrespective of ship size. Based on the successful, electronically controlled ME heavy-fuel-burning diesel engines, the ME-GI design accommodates natural gas and liquid fuels.
Dual-fuel operation requires the injection of both pilot fuel-oil and gas fuel into the engine’s combustion chamber via different types of valves arranged in the cylinder head. The ME-GI engine head is fitted with two valves for gas injection and two for pilot fuel. The pilot-oil valve is a standard ME fuel-oil valve.
MAN B&W ME-C and ME-GI engines are broadly similar and share the same efficiency, output and dimensions. In comparison, the ME-GI engine’s key components are its modified exhaust receiver, modified cylinder cover with gas-injection valves and gas-control block, an expanding top gallery platform, high-pressure fuel-supply pipes, and mounted gas-control units.
The ME-GI engine contains many inherent benefits, including:
• low operational cost
• low investment cost
• flexible burning of HFO and gas
• clean exhaust gas
• conventional MAN B&W two-stroke technology:
- high reliability
- low maintenance
• simple technology
• maximum engine-room safety
• two-stroke dual-fuel experience since 1994
• proven technology.
Wartsila and Aker Solutions to jointly develop cutting edge High Performance Turbine Installation Vessel.
One chief engineer asked me: “Why MAN, Wartsila, Cat ... develops new engines? A diesel engine average lifetime is more than 20 years. Fuel Oil resources must run low in 20 years according to predicted.”
It was a good question, wasn’t it? I told that they thought about it. And they are working in this direction – Duel fuel engines, Gas Engines.
Reàd the Wartsila's news below.
Wartsila, the marine industry’s leading solutions provider, and Aker Solutions, the international oil and gas services company, have agreed to combine their fields of expertise to develop a new and environmentally sound concept for offshore wind farm installation vessels. According to the contract, which was signed earlier this year, Wärtsilä will provide the new installation vessels with the ship design, electrical power generation, propulsion machinery and high-end automation, whilst Aker Solutions will supply the jacking system. Wartsila, together with Aker Solutions, will also offer a 24/7 global support service for maintenance, repairs, and component supply to the vessels.
The two companies have selected the best technologies for this custom designed installation vessel, which enables a highly efficient way of setting up offshore wind power generation. The three Wärtsilä 6L34DF and two Wärtsilä 9L20DF dual-fuel engines, that will provide main and auxiliary power for the vessel, can operate on liquefied natural gas (LNG) with low emissions. Similarly, heat from the engine cooling system will be utilized to generate drinking water, and to supply hot water for use by the crew. The accommodation heating on board will also use the same heat source, while absorption chiller units will provide air conditioning during summer months.
Aker Solutions has applied its in-depth knowledge of the offshore drilling market to develop a continuous hydraulic jacking system for truss legs, which has been customized for high performance turbine installation vessels. This jack system has great benefits in regard to redundancy, and has a robust design for operations in harsh environments.
Also read the recent presentation “Sustainable Marine Power – The Methapu Project” by Edward Fort (Lloyd’s Register annual Technology Days event 2011). The EC METHAPU project set out to evaluate the use of both SOFC (Solid Oxide Fuel Cell) technology and methanol as a means for converting chemical energy into electrical power for essential services on board an internationally trading cargo vessel covered by the SOLAS convention and ‘in class’.
Korea provides setting for classification-society approval and subsequent, successful sea trial MAN Diesel & Turbo has announced that its latest, mark-9, 80-cm-bore engine recently passed its Type Approval Test (TAT). The super-longstroke S80ME-C9 engine now powers a Maersk Line container vessel and successfully completed its TAT at HHI-EMD, the Engine & Machinery Division of Hyundai Heavy Industries Co., Ltd., in Korea.
The S80ME-C9 engine that underwent the TAT is the fourth in a series of 22 ordered by Maersk Line for its new fleet of 4,500-teu container vessels. Constructed at Hyundai Heavy Industries in Korea, each engine is delivered with waste-heat recovery (WHR) technology, including power-turbine and steam-turbine installations.
With WHR, exhaust gas is removed from the main engine before the turbocharger(s), which results in less air passing through the engine and, accordingly, a slightly increased fuel-oil consumption. However, by utilising the extra energy in the exhaust gas in the power and steam turbines, the overall efficiency of the complete system is increased significantly. When this is calculated in terms of fuel-oil consumption, a reduction of approximately 10 - 15% can be achieved.
Overall, the S80ME-C9 engine performed well both as an individual unit and in combination with WHR. Recently, MAN B&W engines introduced a new efficiency optimised layout that includes increased scavenge-air and maximum-combustion pressures. With the latest technology, it is possible to reduce specific fuel-oil consumption by 2 g/kWh without increasing NOx emissions, a fact confirmed by the S80ME-C9 engine during testing.
Upgraded Wärtsilä RT-flex68-D successfully tested for IMO Tier II compliance
The first upgraded Wärtsilä RT-flex68-D engine equipped with a Variable Turbine Geometry (VTG) turbocharger was successfully tested at Doosan Engine Co Ltd in South Korea. It is fully compliant with the International Maritime Organization’s (IMO) Tier II regulations.
The engine has a slimmer outline to better suit installation requirements for container ships. Moreover, the engine provides extended flexibility over a broader load range when equipped with a VTG turbocharger. The tested engine is the first of eight for installation in eight ships for a Chinese owner at a Chinese shipyard. The engine has a contracted maximum continuous power of 21,910 kW at 95 rpm.
The main objective in upgrading this particular engine has been to reduce the width of the engine to suit container ships with hulls having fine afterbody lines. This is achieved primarily by introducing a simplified supply unit and a new design for the scavenge air receiver, as well as RT-flex components. This offers also improved engine maintenance. The greater commonality of parts with other engine types reduces both component costs and the spares inventory. Components were also made more manufacturing-friendly. In implementing these modifications, there has been no compromise on safety and reliability.
Wärtsilä introduces new waterjet series for ferries, yachts and naval vessels.
The new midsize range of Wärtsilä waterjet solutions features convenient ‘plug & play’ installation that simplifies the shipyard work. This series features inboard hydraulics, as standard, for ease of maintenance and better economic and environmental performance.
Wärtsilä, the marine industry’s leading solutions provider, has introduced a new series of waterjet solutions. This new midsize series enhances Wärtsilä’s competitive range of stainless steel jets to include all sizes from 510 mm to 3250 mm. This makes Wärtsilä the only supplier serving both midsize and the lower range of large Waterjet applications with a single product. The new series is aimed particularly at the high speed ferry, high speed patrol craft, and customized yachting segments.
MAN Diesel & Turbo build new emissions test centre in Augsburg
On 25 January 2011 the manufacturer of large-bore diesel engines and turbomachinery, MAN Diesel & Turbo SE, is holding the topping out ceremony for a new emissions test centre at the headquarters in Augsburg. The test facility, which goes by the name of “CentAur”, is going to be used to test measures aimed at reducing emissions from marine and power generation engines. Above all, the investment of around a million euros is being made in the service of optimisation and further development of environmental technologies.
Wärtsilä 32 diesel is very successful engine. More than 4000 units were sold to the marine industry since 1980. The engine is used for both main engine and auxiliary engine applications.
Today Wärtsilä has introduced a more powerful version for marine applications of Wärtsilä 32 engine.
The new and upgraded version is available with an increased power output of 580 kW per cylinder at 750 RPM (50 Hz version). This represents a 15 percent increase in power output over the earlier 32 engine, despite having the same external dimensions. This increased output means that the Wärtsilä 32 now covers a power range from 3 MW to 9,3 MW. One area where this new power output is of particular interest is in the offshore drillship market. It is felt that in combination with Wärtsilä’s Low Loss Concept, the new engine can offer a powerful yet compact package for diesel electric propulsion.
The Wärtsilä 32 engine is fully equipped with all essential ancillaries, and has a thoroughly planned interface for the plant or ship’s control system. This ensures easy installation and reliable engine operation.
It is very important that the engine is able to operate efficiently and economically on low sulphur fuels (<0.1% S), making it suitable for operation in emission-controlled areas. It can also be equipped with a SCR catalyst, such as the NOR (nitrogen oxide reducer), which can reduce NOx emissions by as much as 95 percent. This means that, already today, the machinery is IMO Tier III compliant. The standard Wärtsilä 32 entirely fulfils IMO Tier II regulations. Regardless of the fuel used, the consumption efficiency is consistently excellent over a wide load range.
Huge Deal - Alfa Laval Acquires Aalborg Industries.
Alfa Laval – a leader in heat transfer, centrifugal separation and fluid handling –signed an agreement to acquire Aalborg Industries Holding A/S for a total cash consideration of $729.6m, on an enterprise value basis, from Altor 2003 Fund, LD Equity and the Company’s management. Aalborg Industries has some 2,600 employees and is expected to generate sales of about $481.5m in 2010. The acquisition will be accretive to EPS from 2011. The closing of the transaction is subject to clearance from regulatory authorities.
Headquartered in Aalborg, Denmark, the company is a provider of products, systems and service solutions, today mainly to the marine and off-hore markets, but it also has an increasing exposure to the power industry as well as to other industrial end markets. Its offering includes boiler systems, thermal fluid systems, waste heat recovery systems and inert gas systems. The company complements and further strengthens Alfa Laval’s leading global position, by adding a strong product offering that focuses on energy efficiency. As a result, meaningful top and bottom line synergies are expected to be derived from this combination.
Since its launch in 1988, MAN Diesel & Turbo has sold nearly 800 × 48/60 units, bound for a broad range of power-generation and marine-propulsion applications. Thanks to its high efficiency, the 18-cylinder variant is the 48/60 engine family’s bestselling configuration.
The high-pressure turbocharger is directly mounted to the engine with the lowpressure turbocharger located upstream on its own steel frame. The combustion-air and exhaust-gas piping between both turbochargers is fitted with compensators, ensuring complete insulation from vibrations.
The new and upgraded version is available with an increased power output of 580 kW per cylinder at 750 RPM (50 Hz version). This represents a 15 percent increase in power output over the earlier 32 engine, despite having the same external dimensions. This increased output means that the Wärtsilä 32 now covers a power range from 3 MW to 9,3 MW. One area where this new power output is of particular interest is in the offshore drillship market. It is felt that in combination with Wärtsilä’s Low Loss Concept, the new engine can offer a powerful yet compact package for diesel electric propulsion.
