Tag: ship engines

  Rolls-Royce gas engines have powered Fjord Line ferries Bergensfjord and Stavangerford to the top two positions in the World Ports Climate Environmental Ship Index (ESI). The liquefied natural gas (LNG) fuelled ferries are both powered by four Rolls-Royce BV12PG gas engines that drive highly efficient Rolls-Royce PROMAS integrated rudder and propellers. These ferries have achieved the top score in the index, which measured the emissions of over three thousand ships. Of the 3194 ships currently on the ESI list, Bergensfjord scored 93.9 points followed by sister vessel Stavangerfjord with 93.5. Only fifty vessels had a score higher than 49. It is clear that the Rolls-Royce engines have made these ferries more environmentally-friendly than other vessels on the ESI list. We continue to improve the efficiency of our vessels and, as an example, have recently moved to LED lighting to reduce further energy consumption onboard,” said Morten Larsen, Fjord Line’s Technical & Nautical Director. John Knudsen, President Commercial Marine, Rolls-Royce said: These remarkable ferries are driven exclusively by natural gas. One reason for the high ESI score is that the Rolls-RoyceBergen engines only use LNG and do not need oil fuel for pilot injection. The result is that the BV12PGs ...

  The first Wärtsilä two-stroke engine with a high pressure SCR (Selective Catalytic Reduction) system manufactured in China has been introduced. The system is fitted to a 5-cylinder Wärtsilä RT-flex58T-D 2-stroke, low speed engine produced at the Hudong Heavy Machinery Co Ltd (HHM) facilities. The SCR reactor was also manufactured by HHM. This is the first SCR system that complies with the IMO’s Tier III regulations for engine emissions of nitrogen oxide (NOx). The Wärtsilä engine with SCR is to be installed in a new 22,000 dwt multi-purpose vessel currently under construction at the Ouhua shipyard on behalf of China Navigation Co (CNCo). The ship, which is scheduled for delivery in the second quarter of this year, has been designed to allow sufficient space for the fitting of the SCR. This will enable the vessel to comply with the Tier III regulations for NOx control. The SCR system for this application has been jointly developed by HHM and Winterthur Gas & Diesel (WinGD), the joint venture company of Wärtsilä and China State Shipbuilding Company (CSSC), using a basic design concept from Wärtsilä which has been adapted to suit the particular requirements of the engine and ship. Wärtsilä has been producing ...

GE Marine announced that Bastø Fosen has chosen GE Marine’s International Maritime Organization (IMO) Tier III compliant marine diesel engines for new and re-powered vessels. Bastø Fosen will be among the first customers in Northern Europe to operate GE’s diesel engines that meet IMO Tier III emissions standards without Selective Catalytic Reduction (SCR) aftertreatment or urea injection. Bastø Fosen has ordered six, eight-cylinder in-line engines for three new ferries and two, 16-cylinder V engines to re-power two existing vessels– Bastø I and Bastø II. The re-powered vessels are scheduled to begin operating in early 2016, and the new vessels will launch later that year. “We chose the new GE Marine engines for their ability to meet IMO Tier III emissions requirements without urea aftertreatment. We value their reliability and low fuel consumption,” said Stein Andre Herigstad, CFO Bastø Fosen. Bastø Fosen, part of Torghatten Group ASA, is a major ferry operator in Norway providing annual transit service to more than 1.7 million vehicles and 3.4 million passengers. Local support for Bastø Fosen will be provided by GE’s distributor, Turner EPS. “We are extremely pleased Bastø Fosen selected GE. We look forward to providing our advanced technology IMO Tier III solution, ...

At a research facility in Copenhagen, a unique ship’s engine has been developed. Powered by both diesel and liquefied natural gas, it has been designed to reduce the emissions of gases like carbon dioxide and nitrogen oxides. Its performance differs little from normal diesel engines, say the scientists involved in this European research project Euronews reports that over 100 of these engines have already been sold to ship owners refitting their fleets. Buyers are convinced that, in a sector constantly submitted to ever stricter environmental regulation, their investment will eventually pay off, says Peter Andersson, Head of Ship Management at UECC: “You have to look at the long picture. You have a vessel that is going to operate between 25 and 30 years. And then, in this eco-zone when you can’t burn high sulphur fuel any more, so in that perspective we see it as a win-win situation.” The researchers are now looking ahead. The technology for 100 percent natural gas engines exists, they say, but the market needs to adapt. With around 99% of the world’s commercial fleets powered by diesel, the market potential of these engines is there to be exploited, researchers conclude. You can also watch the following related video: New Eco-friendly ...

The first Wärtsilä X62 two-stroke engine has successfully passed its design validation and type approval tests and has performed exceptionally well during the necessary sea trials. It is, therefore, now ready for full market availability. The Wärtsilä X62 is the latest in Wärtsilä’s X-Generation of engines that was introduced in 2012 and which has been well received by the marine sector. Thus far orders have been received for 127 X-Generation engines. These engines feature a high stroke-to-bore ratio, thus achieving a lower engine speed and reduced brake specific fuel consumption (BSFC). Most prominently, the X62 incorporates Wärtsilä’s second generation electronically controlled, common-rail fuel injection system. The system facilitates high levels of combustion efficiency to give exceptional fuel savings across the entire load range of the engine. Another important feature of the Wärtsilä X-Generation engines is that a single electronic control system, the Wärtsilä UNIC, controls the fuel injection, the exhaust valve operation, and the cylinder lubrication. This allows excellent flexibility in the optimised operation of the engine. The first Wärtsilä X62 engines to enter actual service will be used to power four 115,000 dwt LR2 product tankers being built for the Greek ship owner Kyklades Maritime Corp at the Gunsan ...

Broken bolts on Wartsila Engines

YANMAR America has announced the introduction of its new EPA Tier III compliant commercial marine diesel engine. Rated at 755 mHP and 1900 RPM, the new 20.38-liter 6AYAM-ET uses a fully mechanical control system for easy servicing and reliable performance. The four-cycle, in-line six-cylinder 6AYAM-ET offers several key features and benefits that make it a top choice for commercial vessel operators. First, the torque characteristics allow for stable cruising with the least amount of speed reduction even with sudden load changes. The engine also offers its globally acclaimed low fuel consumption and a continuous rating suitable for river push boats, tugboats, trawlers and other applications with uninterrupted operations or load cycles. Plus, a 500-hour service interval aided by a purpose-built marine design featuring a long stroke, water cooled exhaust manifold, special coated liner and nodular cast iron piston with coated piston rings assure minimum downtime to keep vessels on the water and out of the shop. To comply with emissions regulations, the 6AYAM-ET uses an internal exhaust gas recirculation (EGR) system. This design does not require any external control devices or significant engine structure changes. In addition, the micro-sized multiple holes in the all-new injectors produce an even finer fuel ...

Tenneco  announced that it has introduced a complete urea dosing control, fluid handling and catalyst solution for selective catalytic reduction (SCR) after treatment, enabling large engines to meet EPA Tier IV and IMO Tier III regulations. The company will showcase the complete system at the 2014 WorkBoat Show in New Orleans Dec. 3-5, 2014 (Booth #2152). The system is designed specifically for high-horsepower engines in the marine, stationary and locomotive markets, providing precise and reliable delivery of liquid urea. It includes a proprietary, high-performance injector design, a precision mechatronic fluid delivery pump and customizable remote monitoring and controls. “We’re excited to introduce an advanced SCR system specifically designed and purpose-built for large engine applications,” said Timothy Jackson, chief technology officer, Tenneco. “The system provides a turnkey dosing solution which is compatible with a wide range of engine and after treatment architectures, and is supported by Tenneco’s extensive full systems integration expertise.” Tenneco’s large engine SCR system is designed to meet the requirements of major maritime classification societies including the ABS (American Bureau of Shipping), DNV (Det Norske Veritas), CCS (China Classification Society), KR (Korean Register of Shipping) and Class NK (Nippon Kaiji Kyokai). The system is currently being validated with ...

The HERCULES R&D programme to develop large engine technologies, which was initiated in 2004 as a joint vision by the two major European engine manufacturing groups, Wärtsilä and MAN Diesel & Turbo, is to continue with a new HERCULES-2 project, pending approval under the Horizon 2020 EU Framework Programme for Research and Innovation. The HERCULES-2 project is aimed at developing a fuel-flexible marine engine that is optimally adaptive to its operating environment. The work will focus on four areas of integrated R&D divided into Work Package Groups (WPG), as follows: WPG 1 - a fuel flexible engine; WPG II - new materials (for engine applications); WPG III - an adaptive powerplant for lifetime performance; and WPG IV - a near zero emissions engine. This work will build upon and surpass the targets of the previous HERCULES projects by going beyond the limits set by the regulatory authorities. By combining the very latest technologies, and through the use of integrated solutions, the new project aims to achieve significant reductions in fuel consumption and exhaust emissions. The project includes several full-scale prototypes and shipboard demonstrators that will speed the development of commercially available products. This co-operation between Wärtsilä and MAN Diesel & ...