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 Reporter March 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Austal Graduates 48 4-Yr Apprentices

Austal USA combined two classes to graduate a total of 48 members of Austal’s cutting-edge four-year apprenticeship program yesterday at a formal ceremony held at the Arthur R.

SimCity

Building Capacity, as Deadline for Trained Crews Nears   “You see that ship. That’s our ship,” says Karsten Saevik, as he directs our attention to the virtual

Maritime Training Five Years from Now: A Look Ahead

For anyone involved in maritime training, now is an incredibly exciting time full of opportunity. More than ever before, there are new advanced techniques and technologies

Marine Propulsion

Schmiedag and Wildauer Schmiedewerke: 'We Forge Partnerships'

Olaf Wiertz, Sales Director at Schmiedag GmbH (SDG) and Wildauer Schmiedewerke GmbH & Co. KG (WSW) said: “We are more than just a supplier to our customers – we are their partner.

Lack of Ship Definition is a Threat to Investors

AKD says the lack of an unambiguous term to describe a ‘ship’ in several jurisdictions represents a potential threat to asset security for financiers, particularly

Rolls-Royce Propulsion for Polar Research Vessel

Rolls-Royce informs it has been awarded a contract by shipbuilder Fincantieri to supply a fully integrated propulsion system for Norway’s new Polar Research Vessel,

Shipbuilding

First Supramax Vessel for Japan-Italy Venture

'DACC Tirreno' was delivered at the Oshima shipyard in Japan yesterday, the first of four Supramax bulk carriers for the dACC Maritime Limited fleet, the joint

Austal Graduates 48 4-Yr Apprentices

Austal USA combined two classes to graduate a total of 48 members of Austal’s cutting-edge four-year apprenticeship program yesterday at a formal ceremony held at the Arthur R.

BAE Systems to Expand San Diego Shipyard

BAE Systems announced it will invest approximately $100 million to expand drydocking capabilities at its San Diego shipyard.   The investment, which will include

Environmental

USCG Flush Ice down River Systems to Facilitate Shipping

The Coast Guard cutter fleet is flushing ice through the Great Lakes river systems to prevent ice jams and facilitate commercial shipping as the shipping season

Chile Desert Rains Sign of Climate Change

The heavy rainfall that battered Chile's usually arid north this week happened because of climate change, a senior meteorologist said, as the region gradually

Mexico Unveils National Strategy ahead of Paris Climate Talks

Mexico on Friday said it will cap its greenhouse gas emissions by 2026, becoming one of the first countries to formally submit its national climate plan the

Marine Power

Schmiedag and Wildauer Schmiedewerke: 'We Forge Partnerships'

Olaf Wiertz, Sales Director at Schmiedag GmbH (SDG) and Wildauer Schmiedewerke GmbH & Co. KG (WSW) said: “We are more than just a supplier to our customers – we are their partner.

Rolls-Royce Propulsion for Polar Research Vessel

Rolls-Royce informs it has been awarded a contract by shipbuilder Fincantieri to supply a fully integrated propulsion system for Norway’s new Polar Research Vessel,

Indonesia Partners with China on Maritime

Indonesian President Joko “Jokowi” Widodo and Chinese President Xi Jinping pledged increased maritime cooperation during the formers visit to China.   The joint

 
 
Maritime Careers / Shipboard Positions Naval Architecture Navigation Offshore Oil Pipelines Pod Propulsion Port Authority Salvage Ship Electronics Ship Repair
rss | archive | history | articles | privacy | terms and conditions | 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: 0.1395 sec (7 req/sec)