Friday, April 23, 2021

Tag: ship engines

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Factory acceptance for first 2-stroke low-pressure dual-fuel engine

  The first Wärtsilä low-speed two-stroke dual-fuel (DF) engine destined for a commercial application has successfully completed its Factory Acceptance Test (FAT) at a Chinese licensee of Winterthur Gas & Diesel (WinGD), the Switzerland-based designer, developer and licensor of Wärtsilä brand low-speed two-stroke engines. The engine is a five cylinder, 50 cm bore 5RT-flex50DF built by Yuchai Marine Power Co., Ltd. (YCMP) at its factory in Doumen, Zhuhai City, Guangdong Province, in the South of the People’s Republic of China. It will power a new “handy-size” LNG carrier, designed by MARIC, in the fleet of Chinese ship-owner and operator Zhejiang Huaxiang Shipping CO., Ltd. The new vessel is under construction at the shipyard of Qidong Fengshun Ship Heavy Industry CO., LTD, also in the People’s Republic of China. While designed to ocean-going standards, in service the LNG carrier will operate principally in Chinese coastal waters and deliver LNG to terminals in the estuaries of major Chinese rivers. WinGD’s scope-of-supply for this project also includes a gas valve unit (GVU), some ancillary equipment and the commissioning of both the engine and GVU aboard the LNG carrier. Technical Data of the LNG Carrier: Rated power: 6000kW at 124rpm LNG Capacity: ...

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Shell fuel offers smooth transition to ECAs

  Shipowners switching to low sulphur content fuels in line with their obligations in Emissions Control Areas (ECAs) have demanded confidence in the cylinder oils specified to lubricate their engines Shell Marine Products (SMP) can claim early insight into the way low sulphur fuels used with oils of too high a base number can harm engine efficiency. Many lubricant suppliers have concluded that, where fuel sulphur content is 0.1% or lower, the required level of cleanliness requires cylinder oils of 40BN and below. SMP’s answer for two stroke engines has been the 25BN Shell Alexia S3 (SAE50).  “Extended use of conventional, high base number (BN) cylinder lubricants in engines burning low-sulphur fuels may lead to the formation of harmful deposits, potentially resulting in liner scuffing and premature replacement,” says Jan Toschka, General Manager, Shell Marine Products. “However, it is not only about matching BN to sulphur content. Our intensive research has shown that, in addition to acid stress, the cylinder oil in low-speed, two-stroke engines is exposed to thermal, insolubles and humidity stress. An imbalance between the acid stress a cylinder oil faces and its BN can lead to excessive deposits on piston top lands, rings, and ring grooves, leading ...

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Wartsila 50DF engine certified to run on ethane

  The Wärtsilä 50DF marine engine has been successfully tested and certified to run on ethane (LEG) fuel. The extensive and successful testing programme was carried out by Wärtsilä in close collaboration with Evergas, a world renowned owner and operator of seaborne petrochemical and liquid gas transport vessels.  “We are very pleased that the Wärtsilä engines will be capable of utilising ethane boil-off gas as fuel. It increases our operational efficiency and improves flexibility in the bunkering of fuels. All in all it results in a significant reduction in operating costs, while also providing a minimal environmental footprint. It also enables us to offer our customers increased flexibility, which has a monetary value to them,” says Mr Steffen Jacobsen, the CEO of Evergas. The capability to efficiently burn ethane boil-off gas as engine fuel significantly reduces the need of gas re-liquefaction during the voyage. This means that less power is needed for the cargo handling, thus providing a more efficient and environmentally sound overall system. This technological breakthrough enables Wärtsilä´s customers to meet the International Maritime Organization’s (IMO) Tier III regulations without need of secondary emissions cleaning while using either LNG or LEG as fuel.  The engines have the capability ...

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GE Marine engines receives LR approval

  GE Marine announced that its LM6000 aeroderivative marine gas turbine PC and PG models have received Lloyd’s Register’s Design Appraisal Document to the Marine Naval Vessel Rules (NVR). The LM6000 is the most fuel-efficient simple-cycle gas turbine in its size class, delivering over 40% thermal efficiency. The GE LM6000PC marine produces 42 megawatts (MW)/59,900 shaft horsepower (shp) and the more powerful PG model has an output of 52 MW/70,275 shp. “With the LM6000 Lloyd’s Register’s Design Appraisal to Naval Vessel Rules obtained, GE offers customers gas turbine-based propulsion solutions for a myriad of additional marine applications including military combatants,” said Brien Bolsinger, Vice President, Marine Operations, GE Marine. “The LM6000 already has a reliable track record in marine and industrial service logging more than 21 million operating hours. Over 1,110 PC models are used for land-based power generation, driving LNG compressors and on marine floating production storage and offloading ships, offshore platforms and power barges,” Bolsinger added. Both LM6000 models produce low emissions, can operate on a variety of fuels and offer customers reduced maintenance costs, increased availability and superior reliability. Source and Image Credit: GE MarineIn the beginning, I was explicit with you propecia before and after has ...

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MHI-MME Released UE Engine Technical Data Online

Mitsubishi Heavy Industries Marine Machinery & Engine (MHI-MME) released UE Engine Technical Data on its website. The new Technical Data can be browsed and downloaded from the company's website. The new search system, which complies with IMO NOx Tier III regulations, is designed to provide a broad range of useful information to our customers planning new vessels with UE engine. Formerly, MHI-MME shared the UE Engine Technical Data which comply with IMO NOx Tier II regulations, with a limited number of customers on the dedicated website. However, in order to provide better user-friendliness, MHI-MME renewed the system for IMO NOx Tier III compatible engines by improving the format, contents or design, and released the data widely on the website. At this moment, the data for two engine types, UEC50LSH-Eco-C2 and UEC45LSE-Eco-B2, are released to the public. Furthermore, MHI-MME is planning to release the data for all UE Engines that are control subjects of the IMO NOx Tier III regulations, on the website by the end of 2016. Meanwhile, MHI-MME will continue to provide the Technical Data which comply the IMO NOx Tier II through the existing dedicated site. On the strength of this renewal of UE Technical Engine Site, MHI-MME ...

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Two-Stroke Methanol Engine Successfully Completes Demonstration

On 17 March, 2015 at MAN Diesel & Turbo’s Diesel Research Centre in Copenhagen, the company successfully demonstrated the ME-LGI concept in front of existing ME-LGI customers and partners, including Westfal-Larsen, Marinvest, Waterfront Shipping/Methanex, MES, HHI-EMD, MOL, and Minaminippon. For the purposes of the event, the company rebuilt its 50MX test engine to an ME-LGI unit. Vice President and Head of R&D, Søren H. Jensen, said: “Attendees showed great interest in the demonstration and the accompanying technical presentations; their feedback has been very positive.” He continued: “A number of years ago we identified the need to develop an engine that could run on more environmentally-friendly, competitively-priced fuels as an alternative to MDO/MGO. We believe the ability of the ME-LGI engine to run on sulphur-free fuels offers great potential. Methanol carriers have already operated at sea for many years. With a viable, convenient and economic fuel already on-board, exploiting a fraction of the cargo to power a vessel makes sense.” To date, MAN Diesel & Turbo has received orders for 7 × ME-LGI engines – a mixture of 7S50ME-LGI and 6G50ME-LGI variants – from Mitsui O.S.K. Lines, Marinvest and Westfal-Larsen. The very first engine will be produced by Mitsui Engineering & ...

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Rolls-Royce gas engines powers two Fjord Line ferries

  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 ...

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First Wartsila two-stroke engine with high pressure SCR introduced

  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 ...

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GE Delivers fisrt IMO Tier III Engines to Northern European Market

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, ...

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Natural gas makes ship engines more eco-friendly

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 ...

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