MHI to Develop"UEC-LSGi," Low-speed, 2-stroke, Dual-fuel Marine Diesel

(MarineLink)
Thursday, July 05, 2012
Mitsubishi-UE Diesel Engine(6UEC85LSII): Mitsubishi-UEC diesel engine was developed by us in1955. The Mitsubishi UEC series low-speed marine diesel engines are long range of ship types, including handymax and panamax bulk carriers, multi purpose cargo ships.

Mitsubishi Heavy Industries, Ltd. (MHI) has begun  developing "UEC-LSGi," low-speed, dual-fuel, marine diesel engines capable of using not only conventional heavy oil but also natural gas for their fuel.
The new engine will be added to the lineup of the Mitsubishi UEC Engine Series, the company's 2-stroke, low-speed marine diesel engine brand. Scheduled to be launched onto the market in 2015, MHI aims to reduce the economic and environmental burden on ship operators.
For the new engine, MHI will engage in the development of new components requisite for dual-fuel use, including a new direct fuel injection system, a gas-fuel supply system and control system, targeting to complete preliminary testing by a single cylinder testing machine within fiscal year 2013 (by the end of March 2014). The company will then conduct verification tests for full-scale engines with dual-fuel use capability and bring an 11,000 – 18,000 kW class power output UEC-LSGi engine with a cylinder bore of 600mm onto the market.
The price of heavy oil used as fuel for low-speed, 2-stroke marine diesel is expected to rise in the future. In contrast, the price of natural gas fluctuates in a relatively narrow range, and the supply of shale gas, a non-conventional type gas, has stabilized due to the advances and sophistication of production technology. Under these conditions, the interest and expectation of concerned parties in the development of natural-gas firing low-speed, 2-stroke marine diesel engines has been increasing.
In addition, IMO (International Maritime Organization) is progressively strengthening regulations on sulfur content in fuel oil aiming to reduce SOx (sulfur oxides) contained in gas emitted from ships. Ultimately, the sulfur content in the fuel used for marine ships will be required to be less than 0.5% in 2020, considerably lower than the current figure of under 3.5%. Operators of ships using heavy oil fuel are required either to use the costly low sulfur content fuel or install sulfur removal exhaust gas treatment systems to engines. If a low-speed marine diesel engine that is capable of using natural gas for its fuel is developed, those measures will become unnecessary as natural gas does not contain sulfur.
MHI develops UEC-LSGi engines in response to these market needs. For the engine, MHI will use the diffusional combustion method, in which high-pressure gas, about 300 bar, is injected in the air compressed by the cylinder stroke and ignited by the pilot flame by a very small amount of fuel oil. The method excels in responsiveness for changes in gas fuel composition and sudden changes in engine load, compared with the pre-mixed combustion method, in which low-pressure gas is mixed with air and then compressed. Leveraging this feature, MHI will develop the engine with high combustion stability.
The UEC-LSGi will also be designed to be capable to operate with heavy fuel only to the 100% engine load, which enables it to meet various operational needs. For NOx (nitrogen oxide), natural gas is slightly advantageous compared with conventionally used heavy oil. MHI will apply its EGR (exhaust gas recirculation) technology, currently in development, and others for the new engine to comply with IMO rules.
MHI is the only licensor of the low-speed, 2-stroke marine diesels in Japan. By functionally combining a wide range of marine-use machinery and technologies, the company is promoting"Project MEET (Mitsubishi Marine Energy & Environmental Technical Solution System)" that proposes solutions to comply with the strengthening of environmental regulations and satisfying needs for energy-saving operations. For the Mitsubishi UEC marine diesel engine, the core product of the project, the company energetically engages in the development of UEC-LSGi, at the same time further endorsing the development of energy-saving technologies to lead the world's marine diesel engine industry. Through these initiatives, MHI strengthens its development activities of products that fully match the needs of customers as well as continues to provide enhanced services.
 

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter May 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

P&I Club warns on Enclosed Space Entry and Testing procedures

The London P&I Club says it continues to see cases of injuries and fatalities associated with entry into enclosed onboard spaces, including cargo holds on bulk

OOCL Renews VOD Training Contract

Videotel, producer and distributor of training videos, 3D animation, and e-Learning courses to the maritime market and part of KVH Industries, Inc., (Nasdaq: KVHI),

Tech & Design Solutions for Modern Workboats

EPA Tier 4 regulations (for engines of 804 hp and higher) and propulsion advancements have many manufacturers and vessel designers changing course to adapt to new requirements and customer demands.

Marine Propulsion

Wärtsilä Donates Engine to Texas A&M University

Wärtsilä has donated an 8-cylinder Wärtsilä 20 engine and generating set, to the Marine Engineering Technology Department at Texas A&M University at Galveston.

Tech & Design Solutions for Modern Workboats

EPA Tier 4 regulations (for engines of 804 hp and higher) and propulsion advancements have many manufacturers and vessel designers changing course to adapt to new requirements and customer demands.

WSS: Post-combustion Fuel Treatment Cuts Vessel Costs, Risk

Wilhelmsen Ships Service, a provider of products and services to the shipping industry, is advising vessel operators to wage war on soot. According to WSS, soot

Shipbuilding

Bay Shipbuilding Delivers ATB to Moran

Fincantieri Marine Group’s Fincantieri Bay Shipbuilding (FBS) has delivered the Articulated Tug Barge unit (ATB) Barbara Carol Ann Moran and the 110,000-barrel

Conrad Shipyard Christens Woods Hole Ferry

M/V Woods Hole, a 235-foot long passenger ferry built for the Steamship Authority of Woods Hole, Mass., was christened on May 20 at Conrad Aluminum in Amelia, La.

Tech & Design Solutions for Modern Workboats

EPA Tier 4 regulations (for engines of 804 hp and higher) and propulsion advancements have many manufacturers and vessel designers changing course to adapt to new requirements and customer demands.

Environmental

IACS Recommendations for Emergency Response

Following a further round of discussions on 'Places of Refuge' at the IMO last week, prompted by a submission from the EU Member States, the European Commission,

Saint Lucia Accedes to Four IMO Treaties

Saint Lucia has acceded to four International Maritime Organization (IMO) treaties, including conventions covering ballast water management (BWM Convention) and

PureBallast Nears Completion of USCG Testing Procedures

Alfa Laval saiys it continues to move swiftly towards the submission of a U.S. Coast Guard (USCG) type approval application for Alfa Laval PureBallast 3.1. The

Marine Power

Wärtsilä Donates Engine to Texas A&M University

Wärtsilä has donated an 8-cylinder Wärtsilä 20 engine and generating set, to the Marine Engineering Technology Department at Texas A&M University at Galveston.

Tech & Design Solutions for Modern Workboats

EPA Tier 4 regulations (for engines of 804 hp and higher) and propulsion advancements have many manufacturers and vessel designers changing course to adapt to new requirements and customer demands.

MAN Bags Danaos Shipping Propeller Order

MAN Diesel & Turbo has won the order to supply Danaos Shipping Co. Ltd. with fixed pitch Kappel propellers, propeller boss caps with fins, and Engine Power Limitation

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Pipelines Pod Propulsion Salvage Ship Electronics Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.0992 sec (10 req/sec)