Monday, April 6, 2020

Diesel Engines News

Picture source: PRBX / FOTOGRIN / Shutterstock

New Dual Channel Power Supply for Marine Engine Control

Powerbox has announced the release of a new dual channel power supply for Marine engine control. Based on a ruggedized platform for use in harsh environments, the ENMA500D24/2x27-CC provides two 27V/20A isolated outputs and a total power of 540W. The power supply is housed in a robust IP56 case, it is mechanically designed for efficient conduction cooling, and it complies with DNV/GL standards.From local low power DC/DC converters powering sensors to high power DC generators powering the whole boat…

View of an MAN B&W 11G90ME-GI engine during its recent shop test. (Photo: MAN Energy Solutions)

Low-Speed, Dual-Fuel Engines Pass 1 Million Operating Hours

Mk II ME-GI and Otto-cycle ME-GA recently added to two-stroke portfolio MAN Energy Solutions reports that its portfolio of two-stroke, dual-fuel engines has accumulated 1 million operating hours.Bjarne Foldager – Senior Vice President, Head of Two-Stroke Business at MAN Energy Solutions – said: “This significant milestone owes everything to the dual fuel strategy we have laid over the past decade.”MAN Energy Solutions’ ME-GI (-Gas Injection) and ME-LGI (-Liquid Gas Injection) engines form the core of its two-stroke…

Photo: Hydrex

Underwater Bow Thruster Removal in Rotterdam

Last month a Hydrex team removed a bow thruster from a 170-meter container ship. This was done during a stop in Rotterdam. The unit needed to be overhauled and the operation had to be carried out within a very short window that would fit the schedule available to the vessel’s owner.The team mobilized to the ship’s location using a workboat loaded with all the needed equipment. These workboats are fully equipped as dive support stations with hydraulic cranes, winches, nautical and communication equipment and a dive control room.

During the coming weeks, MR tanker Stena Immortal will run on 100% biofuel (Photo: Stena Bulk)

Stena Bulk to Run MR Tanker on 100% Biofuel

Swedish based tanker shipping company Stena Bulk will become the latest to run a ship on biofuel as owners and operators explore alternative fuels to help slash emissions.During the coming weeks, Stena Bulk will perform a test running MR tanker Stena Immortal on 100% MR1-100 bio-fuel oil, produced from used cooking oil and supplied by GoodFuels in Rotterdam.The clean fuel made from used cooking oil has been bunkered onto the Stena Immortal and will be used to power the main engine in normal operations to test and prove the technical and operational feasibility…

Electric Motor Selection for Underwater Vehicles: Considerations of Partial Load Efficiency

It is easy to appreciate why permanent magnet synchronous motors (PMSMs) are popular for use in underwater vehicles (UVs). They are compact and efficient with a high power density. More importantly, perhaps, they allow for effective operation across a broad RPM range which is beneficial for vehicles with multiple operating conditions. That said, we find vehicle product developers are often uncertain about a motor’s “efficiency”. This article offers a few comments from the perspective of a propeller designer…

Photo: SCHOTTEL

​​​​SCHOTTEL to Equip US Navy Tugs

SCHOTTEL said it has secured several orders to provide propulsion systems for U.S. Navy vessels. This additional order of five Workboat Docking vessels and two YTL tugs – all of which are to be built at the Modutech Marine Inc. yard in Tacoma, Wash. Construction of the lead tug is to commence in 2020.The main propulsion for each Workboat Docking vessel consists of a SCHOTTEL SRP 150 azimuthing unit with fixed pitch propellers with a diameter of 1.05 m and an input power of 335 kW. These are driven by diesel engines.

MAN-ES two stroke engine with EGR   (Photo:  Marinfloc)

New Combined Separator for EGR and Bilge

Marinfloc has introduced its combined Exhaust Gas Recirculation Bleed Off water treatment system and Bilge water separator. The solution is approved by both DNV GL and MAN Energy Solutions and fulfills the requirements of MEPC 107(49) and MEPC 307(73). The approval means that only one separator is required instead of two. Reducing the amount of equipment needed on a vessel will provide shipyards, engine makers and ship owners with a significant cost saving solution. Exhaust Gas Recirculation (EGR) is used to reduce NOx as per the Tier III requirements when use with compliant fuel.

Wärtsilä is testing ammonia as a viable fuel for shipping and energy sector applications (Photo: Wärtsilä)

Wärtsilä Testing Ammonia as a Marine Fuel

As marine operators and euipment manufacturers continue to explore alternative marine fuels as a means to help lower vessel emissions, technology group Wärtsilä said it has initiated combustion trials using ammonia.As part of the tests, ammonia was injected into a combustion research unit to better understand its properties. Based on initial results, the tests will be continued on both dual-fuel and spark-ignited gas engines. These will be followed by field tests in collaboration with ship owners from 2022…

Photo: Incat Crowther

Made-to-Measure Ro-Pax Ferry for Bruny Island

A double-ended ro-pax ferry Nairana has been launched for service to Bruny Island in Tasmania. The Incat Crowther 44 design vessel was commissioned by Sealink Travel Group and built by Richardson Devine Marine in Hobart.According to Incat Crowther, Nairana will bring improvements in both transit and turn-around times. The vessel combines a robust aluminum structure, double-ended functionality and a catamaran platform with a generous beam offering fuel savings compared to a monohull.The ferry is configured to carry 36 cars and 192 passengers.

© JinnaritT / Adobe Stock

EPA Tier 4: Difficult and Contentious, 12 Years and Counting

When it comes to complying with EPA’s Tier 4 emissions regulations, there’s no shortage of creativity emerging from America’s maritime engineering firms. Companies such as Hug Engineering are offering flexible, customized aftertreatment-based control systems that can assemble almost in modular like fashion. Other companies, such as ABB Group, offer battery-hybrid power sources to complement combustion power and avoid threshold diesel emissions. Engine manufacturers, such as Cummins…

Total Lubmarine's Talusia Universal Gains NOL from WinGD

Total Lubmarine’s Talusia Universal (BN57) has received a No Objection Letter (NOL) from WinGD for all fuels (liquid and gas) with a sulphur content 0.00%S - 1.50%S.The NOL was awarded with no restrictions following the successful completion of two rigorous tests carried out on two different vessels fitted with W6X72 engines.The tests were conducted on split engines comparing Talusia Universal with a BN40 reference Cylinder Lube Oil (CLO). One test carried out with compliant VLSFO <0.5%S…

MV Ocean Endeavour (Photo courtesy of Royston)

Research Vessel Gets Turbocharger Overhaul

Marine propulsion engineers Royston has completed the overhaul of two turbocharger units as part of service work on a marine diesel engine onboard Gardline’s research vessel, MV Ocean Endeavour.The project saw the removal of the heavy-duty ABB VTR 200 turbochargers from the vessel’s Mirrlees Blackstone ES6 engines and transportation from Hull docks to Royston’s test and repair center on the banks of the River Tyne in the North East of England.There, the units were dismantled and inspected by engineers for signs of wear or damage before being cleaned…

(Image: Glosten)

SCHOTTEL to Propel St. Lawrence Seaway Tug

German propulsion manufacturer SCHOTTEL said it has been selected to equip a newly built harbor tugboat for the Saint Lawrence Seaway Development Corporation (SLSDC) with medium-sized azimuth thrusters. The vessel is under construction at the U.S. shipyard Washburn & Doughty in Maine. The HT-60, the smallest in the harbor tug series developed by the Seattle-based naval architecture firm Glosten, is scheduled for delivery in 2021.Craig Middlebrook, Deputy Administrator of the SLSDC, said, “This new vessel will be used to carry out a variety of construction and maintenance duties for the U.S.

The OLLIS Class: is a new class of vessels being built for Staten Island Ferries by Eastern Shipbuilding Group. Photos: Staten Island Ferries/ESG

Staten Island Ferries: A "New York State of Mind"

It takes a thick skin to live in New York City, let alone to run its Staten Island Ferry service. James C. DeSimone, Deputy Commissioner, Ferry Division, New York City Department of Transportation, has been charged with running the ferry service for the last 16 years. We met with him for his insights on the challenges of keeping the iconic ferry running safely and efficiently.Jim DeSimone has led a maritime life, with his time equally split between the private and public sectors. His maritime affiliation is literally in his blood, as his father Guy J.

First-of-its-kind cargo vessel Captain Ben Moore delivers local produce and food across Long Island Sound. Built by Derecktor Shipyards, the aluminum catamaran is powered by two Cummins QSB 6.7 diesels, and lithium batteries connected to a pair of BAE Systems HybriDrive electric motors.  (Credit: Harbor Harvest)

Rewrite the Rules: The Path to Zero Emissions

With social media updates and conference agendas addressing the subjects of climate change, emissions reductions and alternative fuels, it’s a wonder we are not climbing the Himalayans in search of the Jedi Master that will provide us with the magic potion. Yoda’s blessing with a calming breath, “You have chosen wisely.”Government emissions intervention started with a move to reduce energy and fuel consumption measured in greenhouse gas (GHG), at a time when the world and our politicians spoke about global warming.

Navimag Ferries’ new ship Esperanza (Photo: Wärtsilä)

New Vessel Delivered for Navimag Ferries

Navimag Ferries’ newest vessel, Esperanza, has been delivered.The 150-meter-long vessel can carry up to 274 passengers and has 1,800 vehicle lane meters. It will operate exclusively in Chile, sailing between Puerto Montt and Puerto Natales, and providing a transportation link with Chile's south, in addition to ferry cruising in the Patagonian fjords.The newbuild's propulsion system includes two Wärtsilä 20 main engines, two Wärtsilä controlled pitch propellers (CPP) and two Wärtsilä gearboxes.

Photo: SAAM Towage

SAAM Towage Azimuth Tug Pair Ready to Work

The azimuth tugs SAAM Huasteca and SAAM Valparaíso, both owned by SAAM Towage, reached the ports of Veracruz and Colón, respectively, and will soon complete the process of registering and being licensed to operate.SAAM Huasteca is designed to perform escort functions, as required for large container ships to best enter the recently inaugurated northern area at the port of Veracruz, Mexico. It was built in Vietnam at the DAMEN SONGCAM shipyard, part of  the Dutch Damen Shipyards Group…

Graphical rendering of the ‘MySTAR’, which will be powered by 5 × MAN 8L51/60DF dual-fuel main engines (picture courtesy RMC)

MAN Reenters Finnish Market with Baltic Order

MAN Energy Solutions has won the order to supply the engines for a newbuild shuttle ferry for Estonian shipping company Tallink Grupp. A diesel-electric plant comprising five MAN 51/60DF dual-fuel main engines – with liquefied natural gas (LNG) as primary fuel – will power the MyStar, which Rauma Marine Constructions (RMC) will construct at its yard in Finland. Delivery to the customer is scheduled for early 2022. Upon entering service, the vessel will serve the Tallinn-Helsinki route.Jyrki Heinimaa…

The 24 X 5.5-meter MV Tricia on sea trials (Photo: Cummins)

Dongara Marine Delivers Ferry in Western Australia

Placing a board deck across two canoes, to make a broad flat and stable surface for transporting passengers and freight, was often done to form early ferries. The true catamaran is an evolution of that practical design concept. In recent decades, Australia has led in the development of all shapes and sizes for aluminum catamaran ferries.In December 2019, Dongara Marine of Port Denison delivered a very practical 148-seat, 24- by 5.5-meter ferry to Western Australia’s Public Transport Authority.

(Photo: SCHOTTEL)

Research Vessel Atair to be Commissioned this Spring

A new liquefied natural gas (LNG) powered survey, wreck-search and research vessel built by German Naval Yards Kiel is currently undergoing installation and finishing works at Fassmer in Berne, Germany prior to being commissioned this spring.Ordered by the German Federal Maritime and Hydrographic Agency (BSH), the new research vessel will be homeported in Hamburg, replacing the previous Atair, which entered operation in 1987.At 75 meters long and roughly 17 meters wide, the new Atair will be the largest research vessel in the BSH fleet.

From left: MSHS Vice President and General Manager Rodrigo Quilula; President of TurboUSA Willem Franken and MSHS Group President Are Friesecke, met at the MSHS corporate office in Fort Lauderdale, FL to complete the TurboUSA acquisition..

Motor-Services Hugo Stamp acquires TurboUSA

Motor-Services Hugo Stamp, Inc. (MSHS) a provider of diesel engine products and services, has entered into a definitive acquisition agreement with TurboUSA, Inc., a provider of maintenance and repair services for turbochargers. The acquisition became effective on February 20, 2020.Under the acquisition, leadership and staff of TurboUSA, Inc. will join the MSHS team and the TurboUSA brand will be retired.Are Friesecke, President of Motor-Services Hugo Stamp said: “This is an exciting event for MSHS and TurboUSA…

Image courtesy of Maid of the Mist Corp.

Maritime's 'Path to Zero': The Case for Ferries

Ferries have pioneered zero-emission technology deployment for good reason. Short routes and regular port visits provide opportunities for shipboard stored energy technology, and it is the commercial case that is turning the tide towards zero emissions where the ferry market is concerned. Supported by shoreside charging infrastructure, a fully charged battery pack can be used to propel a ship along a predictable route at relatively low operating cost and little wear and tear,…

Image: Ribcraft

Ribcraft Wins $43m USN Contract

Ribcraft announced that the United States Navy (USN) has awarded a five-year indefinite quantity contract worth up to $43 million to build and deliver an estimated 48 of the 11-Meter Expeditionary Mine Counter Measure Boat. Ribcraft has also been providing the U.S. Navy with 7-Meter shipboard RIBs since 2014.The 11-Meter RIBs will serve to support explosive ordinance disposal mine counter measure platoons in both shallow and deep water operations. To achieve this, Ribcraft will build two configurations for mine counter measure operations…

© Sergii Figurnyi / Adobe Stock

Amsterdam's Boats Go Electric Ahead of 2025 Diesel Ban

The century-old Amsterdam canal boat Gerarda Johanna looks like a classic with wood paneling, but beneath its floorboards lies a high-tech underbelly: rows of lithium ion batteries, 66 in all, with an electric drive train powering its propeller.The boat is part of a push by Amsterdam’s new Green Party mayor to ban diesel engines from the center’s ancient canals by 2025, helping the city’s efforts to combat climate change.The transition among commercial vessels is well underway…

MV Tricia  -- named after Perth Zoo's popular 62-year-old Asian Elephant -- is the third ferry in Transperth fleet. Photo: Dongara Marine

New Cat Ferry MV Tricia for Transperth Fleet

A new passenger ferry built by Dongara Marine has been introduced to the public transport system in Perth, Western Australia. MV Tricia  - named after Perth Zoo's popular 62-year-old Asian Elephant - is the third ferry in the Transperth fleet, joining two other low-wash catamarans introduced in 1997 and 2009. Operating across the Swan River between Elizabeth Quay and South Perth, the 23.7-m aluminium catamaran can carry up to 148 passengers and has a loaded top speed in excess of 16 knots.With two ferries each providing departures every 15 minutes in peak periods…

M/V Autosky (Photo: UECC)

UECC to Trial Marine Biofuels

Short sea ro-ro operator UECC and marine biofuel company GoodFuels have launched a joint trial of GoodFuels Bio-Fuel Oil (MR1-100 or BFO) on UECC’s ro-ro vessel M/V Autosky, the companies announced Thursday.The three month trial will test 3,000 metric tons of sustainable biofuel on the 140m, 2,080 vehicle carrier – a step in advancing marine biofuel for the ro-ro segment. The biobunkering, which will take place in the Port of Rotterdam, will be the first in a series of bunkering operations between March and May 2020.

Photo: SCHOTTEL

SCHOTTEL to Supply EcoPellers to Norled

SCHOTTEL has won a contract from Ada Shipyard in Turkey to supply propulsion units for two double-ended Ro-Pax ferries. As part of the deal, the German propulsion manufacturer will provide a total of four SCHOTTEL Rudder EcoPellers (SRE) for the LMG 60 DE design vessels ordered recently by Norwegian ferry operator Norled.The ferries’ main propulsion consists of two SCHOTTEL EcoPellers type SRE 270 (810 kW each) with 1.85 m diameter fixed pitch propellers (one at each end of the ferry). Each of the azimuth thrusters is driven by two bio-diesel engines through a twin-in-single-out gearbox.

Jaakko Eskola, President & CEO of Wärtsilä Corporation (Photo: Wärtsilä)

Wärtsilä Reorganizes Its Marine Business

Wärtsilä announced it will reorganize its marine business into three independent entities, with the objective to accelerate strategy execution and simplify the business structure.The new businesses, consisting of Marine Power, Marine Systems and Marine Voyage, will be operational as of July 1, 2020.The organizational structure change is a continuation to the shifts made in 2019, whereby Wärtsilä's equipment and service businesses were integrated to strengthen the focus on complete lifecycle solutions…

Image courtesy Fairbanks Morse.

Fairbanks Morse Power for USS Cleveland (LCS 31)

Fairbanks Morse received a purchase order from Lockheed Martin – the U.S. Navy’s prime contractor on Littoral Combat Ship’s (LCS) Freedom variant – to build and deliver the main propulsion diesel engines (MPDE's) for the 16th ship of the class, USS Cleveland (LCS-31).USS Cleveland (LCS 31) will receive a pair of 16-cylinder FM Colt-Pielstick PA6B Sequentially Turbo Charged (STC) diesel engines; together providing more than 12 MW of propulsion power. The USS Cleveland (LCS 31) will rely on the Fairbanks Morse engines for its low speed cruising and mid-range speed propulsion demands.

BC Ferries’ Salish Class vessels feature Wärtsilä’s integrated propulsion system with LNG fueled Wärtsilä engines.(Photo: BC Ferries)

Wärtsilä to Supply Propulsion for BC Ferries Newbuild

Wärtsilä said it booked an order in January to provide an integrated system consisting of the liquefied natural gas (LNG) plant, dual-fuel engines and electrical propulsion system for the latest addition to Vancouver, Canada based BC Ferries’ series of Salish Class vessels.Three similar ferries, all operating on Wärtsilä engines fueled by LNG, have already been delivered. As with the previous three ferries, Remontowa Shipbuilding (RSB), located in Gdansk, Poland, will also build this latest ship.The Wärtsilä scope of supply includes three Wärtsilä 20DF dual-fuel engines…

Photo: Torqeedo

Hybrid Hydrographic Boat Delivered in France

French builder Alumarine Shipyard has delivered a new hydrographic survey boat to the Port of La Rochelle.The eight-meter aluminum vessel, dubbed Cassiopée, is powered by a dual electric/diesel propulsion system. The newbuild is designed to transit at 20-25 knots under diesel power between the home port and the acquisition area, then shift to the electric outboards while performing scans of the seafloor.Electric propulsion and hybrid drives manufacturer Torqeedo said it worked closely with the naval architect and shipyard to specify…

Amsterdam's Boats Go Electric Ahead of 2025 Diesel Ban

The century-old Amsterdam canal boat Gerarda Johanna looks like a classic with wood paneling, but beneath its floorboards lies a high-tech underbelly: rows of lithium ion batteries, 66 in all, with an electric drive train powering its propeller.The boat is part of a push by Amsterdam's new Green Party mayor to ban diesel engines from the center's ancient canals by 2025, helping the city's efforts to combat climate change.The transition among commercial vessels is well underway…

(Image: Wärtsilä)

EU-backed Project Targets Improved Fuel Efficiency

A consortium of maritime industry and academic partners have been awarded EU funding for a project aimed at reducing fuel consumption and lowering emission levels for shipping.The SeaTech project consortium, led by technology group Wärtsilä, has been formed to develop two symbiotic ship engine and propulsion innovations that when combined, could lead to a 30% reduction in fuel consumption. At the same time, the project envisions 99% reductions in emissions of sulphur oxides (SOx) and nitrogen oxides (NOx)…

MAN EngineVault prepares shipowners for developments within the increasingly important
area of marine cybersecurity (Photo: MAN Energy Solutions)

MAN Rolls Out Cyber Security Solution

MAN Energy Solutions’ after-sales division MAN PrimeServ announced a new digital addition to its retrofit portfolio to prepare shipowners for developments within the area of marine cyber security.MAN EngineVault aims to revitalize existing engines, machinery, auxiliary systems, instrumentation and control systems that have already operated in the field for multiple years, protecting main-engine networks from online and physical cyber attacks.Set to come as come as standard in newbuilt ME-engines from May 2020…

Ceremonial launch of Sanmar’s Bogaçay38 tug (Photo: Caterpillar Marine)

Sanmar Launches First Tug with Cat AVD

Caterpillar Marine has announced the ceremonial launch of Sanmar’s new hydraulic hybrid tug,  BOĞAÇAY XXXVIII (38), completely equipped with a Cat Marine Advanced Variable Drive (AVD). The BOĞAÇAY 38 enters the industry as the world’s first AVD vessel. The ceremony took place in January 2020 at the Sanmar shipyard in Istanbul, Turkey, and the tug is scheduled to soon join the Sanmar towage fleet.BOĞAÇAY XXXVIII  is a Robert Allan Ltd. designed Ramparts 2400SX harbor tug, including an integrated Caterpillar AVD system of 3512 main engines…

Image: SCHOTTEL

SCHOTTEL Equips Six Polish Navy Tugs

Bolko, the first of a total of six multi-role tugs built by Remontowa Shipyard in Poland has recently been delivered to the Polish Navy. Further five tugs – Gniewko, Mieszko, Semko, Leszko and Przemko – are scheduled for delivery in the near future. Each of the ASD tugs is equipped with two SCHOTTEL Rudderpropellers type SRP 360 FP. They will be used for military and logistic operations support at sea and in ports.The propulsion system of the Navy tugs consists of two ice-classed SCHOTTEL Rudderpropellers type SRP 360 with 2.0 m fixed pitch propellers.

Photo: Kongsberg Maritime

Kongsberg to Equip Mystic Cruises Newbuilds

Kongsberg Maritime said it has won contracts worth approximately 300 million NOK ($32 million) to equip three adventure cruise ships, with a fourth to follow, for Portuguese cruise company Mystic Cruises.Built by WestSea Viana Shipyard in Portugal, the vessels are to be used for expeditions in the polar regions.The 126-meter, 9,300-metric-ton luxury craft will join an existing trio of sister ships to bring the fleet to seven identical vessels, the first of which – World Explorer – entered service in 2019.

A robot’s battle against emissions: Siemens articulated robots of different sizes assemble battery stacks at Trondheim, Norway. 
Credit: William Stoichevski

Hybrid drives: Siemens sends in the machines

Encouraged by the success of a hybrid drives program, Siemens is going all out in Norway to automate production of that core marine energy storage enabler, the lithium battery. Offshore service vessel charterers, rig owners, ferry operators and ship owners are the target market. Trondheim’s technical university and a recent history of hosting battery makers and system integrators has made it launchpad for new applications involving the new BlueDrive Plus C drives and batteries.Siemens’ Norwegian head of strategy and business development…

Team celebrating SCR-HP  (Photo: PBST)

High-pressure SCR System Seals Class Approval

MAKITA Corporation and MAN Energy Solutions have announced that the first ever PBST-branded and -built cluster-3 SCR-HP system has passed its ClassNK approval test at the MAKITA works in Japan.The most compact of its type in the market, the SCR system is one of four – originally ordered in 2018 and 2019 – for vessels featuring MAN B&W two-stroke engines with two now delivered and the others currently en route to customers. An MAN B&W 6S46ME-B8.5 engine will power each vessel, with the SCR-HP system making each vessel Tier III-compatible.

Corvus Energy batteries will be installed on another four of BC Ferries’ new Island Class hybrid ferries under construction at Damen Shipyards. (Image: Corvus Energy)

Corvus to Supply ESS for BC Ferries Newbuilds

Corvus Energy reports it has been selected by Damen Shipyards to supply the energy storage system (ESS) for four new battery-hybrid ferries for BC Ferries.BC Ferries placed a repeat order with Damen Shipyards Group for four Damen Road Ferries 8117 E3 design—known by BC Ferries as the 'Island Class' vessels. The diesel-electric hybrid ferries are prepared for fully battery-powered, zero-emissions operation in the future. Until electrical charging systems are in place, the ferries…

Photo: MAN Energy Solutions

MAN Propulsion for Royal Canadian Navy Tugs

OCEAN Industries Inc. has ordered 8 × MAN 12V175D-MM, IMO Tier III-compliant engines in connection with the construction of 4 × 24-meter ASD tugs for the Royal Canadian Navy. The vessels are set respectively for delivery to Canada’s major naval bases at Esquimalt, British Columbia and Halifax, Nova Scotia, with each location set to receive two tugs. Under the contract, MAN Energy Solutions will also provide SCR (Selective Catalytic Reduction) technology for the engines, facilitating Tier III compliance, as well as ship service diesel-generator sets.

Photo: Wärtsilä

Wärtsilä's LFSS Undergoes Engine Testing

Wärtsilä’s liquefied petroleum gas (LPG) Fuel Supply System (LFSS) has completed full scale testing with a full sized two-stroke marine engine burning LPG as fuel. This was the world’s first such testing protocol, according to Wärtsilä.It was initially decided to retrofit the Wärtsilä LFSS to four very large gas carrier (VLGC) vessels owned by Oslo-listed BW LPG. However, following the tests, in which the performance exceeded expectations, BW LPG decided to exercise their option to retrofit an additional four vessels, making a total of eight ships to benefit from this technology.

Photo courtesy of SCHOTTEL

SCHOTTEL Propulsion for Turkish-built Tug

SCHOTTEL said it has secured a contract with Turkish shipbuilder Med Marine to provide propulsion units for a newly built escort and harbor tug. The Robert-Allan-designed tugboat is under construction at the Ereğli Shipyard in Northern Turkey. It will be used for harbor and terminal operations as well as for coastal towing.The main propulsion for the RAmparts 3200 tug consists of a pair of SCHOTTEL Rudderpropellers type SRP 460 CP – each driven by a diesel engine with 2,350 kW.

(Photo: Mike Fourtner/Cummins)

Repower of the Tug Gretchen H

As sometimes happens with boats in the maritime world, the recent repower of a tug shone a light on a pair of well known independent companies. The tug Gretchen H. (ex Harry Olsen, Polar Breeze) was built by Rodriguez Shipbuilding of Coden Alabama in 1997 and is currently owned, since 2005, by Boyer Towing.The Gretchen H is a good solid boat and her owners decided she was well worth a new set of engines. At 80 by 30 feet she has an eleven foot depth. As with many tugs out of the Rodriguez yard she has triple propellers and triple engines. She had an older set of engines rated at 700 HP each.

Photo: SCHOTTEL

Schottel Propulsion for Chinese Harbor Tug

Schottel won a contract to provide propulsion units for a new harbor tug under construction at Tongfang Jiangxin Shipbuilding in China. Ordered by the Taizhou Maritime Safety Administration, it will be equipped with SCHOTTEL Rudderpropellers type SRP 430. Each of the azimuth thrusters will be driven by a 1,920 kW diesel engine at 750 rpm. This configuration aims to provide an expected bollard pull of 60 tonnes and a free running speed of approximately 13 knots.The 45 x 12.6m tug is built primarily for vessel rescue and pollution prevention near shore as well as for towing operations.

Photo courtesy of Torqeedo

Capbreton's All-Electric Passenger Ferry

Capbreton is turning to green technologies to reduce pollution of its air and waterways. The popular holiday destination on the Atlantic coast of France saw its first all-electric passenger ferry go into service in July 2019, replacing an older diesel-burning vessel.The 35-passenger aluminium vessel, called e-Boucarot, is powered by an integrated electric propulsion system developed by Torqeedo. It consists of two 10 kW electric outboards and four 48V 5 kWh lithium batteries with…

© Siarhei / Adobe Stock

MAN's New Digital Platform Aims to Link OEM Data

Engines manufacturer MAN Energy Solutions has launched a new digital platform designed to enable the integration and exchange of original equipment manufacturers’ (OEM) data to promote industry collaboration in realizing the benefits of digital technology.The new platform, mýa, provides asset owners with a single, secure interface to data from multiple equipment manufacturers across the marine, power, and energy industries, among others.“Given the unique transformational challenges most industries are facing today…

© JEGAS RA/AdobeStock

Future Ship Fuels: Cut through the Smoke

Ship owners increasingly face complex investment decisions as they try to navigate the most efficient course to the low-carbon future. Ever since the IMO set the industry’s ambitious emission-reduction targets for 2030 and 2050, owners have been inundated with information about future fuels and technologies that may, or may not, ultimately lower the carbon footprints of their fleet.Some of the new technologies hold promise, but the day-to-day viability of too many of them remains unproven; the same can be said for many of the potential fuels.

(Photo: BW LPG)

BW Lines Up Four More LPG Conversions

Singapore-based ship owner BW LPG said it exercised an option for the delivery of four additional liquefied petroleum gas (LPG) dual-fuel engines. With this, BW LPG has committed to retrofit eight vessels with pioneering propulsion technology.In August 2018, BW LPG announced its plans four very large gas carriers (VLGCs) in its fleet with LPG dual-fuel engines – a world's first.The ship owner, together with classification society DNV GL, Wärtsilä Gas Solutions and MAN Energy Solutions…

(Image: Glosten)

Partners Developing Electric Launch for Canaveral Pilots

Glosten said it is working with fellow naval architecture firm Ray Hunt Design and the Canaveral Pilots Association on a pilot/demonstration project for the design, construction and operation of an electric pilot boat.Marking a first for a pilot boat in the U.S., the vessel will feature a battery-electric propulsion system with an emergency ‘get home’ diesel engine.During the feasibility-level engineering, the team established that a Ray Hunt hull form outfitted with a Glosten…