Marine Engines News

Technology group Wärtsilä and TMS Cardiff Gas have renewed their existing Lifecycle Agreement, covering the two-stroke main engines onboard seven LNG Carrier vessels, for a further five years.The agreement is designed to ensure the vessels’ maximum operational reliability by enabling flexible maintenance scheduling and optimizing time between overhauls (TBO).The seven vessels each operate with two WinGD 5X72DF dual-fuel two stroke engines and Wärtsilä gas valve units.The scope of the agreement includes Wärtsilä’s Dynamic Maintenance Planning service…

Swiss marine power company WinGD will offer the first ethanol-fueled two-stroke marine engine next year, with deliveries for newbuild and retrofit applications starting in 2027.The announcement follows a decade of investigation into ethanol fuel, including full-scale engine tests in 2018, and the successful launch of a methanol-fueled engine that uses the same combustion concept and is subject to the same safety regulations as the new ethanol engine.The new engine will be adapted from the X DF-M methanol-fueled engine…

Höegh Autoliners has placed an order for four ammonia-burning Everllence B&W 7S60ME-LGIA (Liquid Gas Injection Ammonia) dual-fuel engines for four 9,100 CEU Aurora-class pure car truck carriers (PCTCs).The vessels will be the first in the PCTC segment to receive DNV’s ammonia-ready and methanol-ready notations.Everllence views the order as signalling a new era for clean propulsion within global shipping. HD Hyundai Heavy Industries Co. Ltd. will build the engines in South Korea.Bjarne Foldager – Head of Two-Stroke Business – Everllence…

A consortium, led by MAN Energy Solutions, has been formed to deliver  the NH3 Spark – FutureFlex project, which aims to develop a dual-fuel, four-stroke GenSet capable of operating purely on ammonia without the need for a pilot fuel, marking a first for a commercial, industrial engine.Sponsored by the Danish State initiative, the EUDP (Energy Technology Development and Demonstration Programme), the project brings together a consortium led by MAN Energy Solutions’ Holeby site along with the Technical University of Denmark (DTU) and Skovgaard Energy…

Mitsubishi Heavy Industries Marine Machinery & Equipment (MHI-MME) has begun demonstration testing of a methane oxidation catalyst system for LNG-fueled marine vessels which is being jointly developed with Daihatsu Infinearth Mfg.Methane oxidation is a chemical reaction in which methane (CH4) is converted into carbon dioxide (CO2) and water (H2O) through reaction with oxygen. The system’s purpose is to reduce methane slip – the release of unburnt methane in the exhaust gas of marine engines.The demonstration test…

MAN Energy Solutions has announced the successful Type Approval Test (TAT) of its dual-fuel MAN L35/44DF engine for application as auxiliary Genset and electric propulsion at constant speeds, respectively, of 720 and 750rpm.The TAT involved the testing of both 35/44DF variants, namely the methane-capable 35/44DF CD and the methanol-ready 35/44CD.Testing took place from April 7 – 11 at the Changwon headquarters of STX Engine in South Korea with the participation of six classification societies.The L35/44DF CD engine is an upgraded version of the L35/44DF CR engine, first launched in 2015.

The Royal Niestern Sander shipyard in the Netherlands has ordered 2 × MAN 16V175D MEM engines (2,400 kWm/1,800 rpm) in connection with the building of an MPV (Multi-Purpose Vessel) vessel – ‘Easymax 5’ – for Dutch outfit, Wagenborg Operator.The engines will be employed as gensets for power generation aboard the purpose-built CO2 carrier, which will be employed in the offshore, substrate storage of CO2.The vessel will be the fifth under the EasyMax concept jointly developed by Wagenborg and Niestern Sander with a cargo capacity of 14,000 tons.

AAM Towage and Caterpillar Marine signed a Memorandum of Understanding (MOU), to evaluate and implement alternative power solutions to diesel, including electrification and alternative fuels such as methanol and ethanol, for the tug fleet.Both companies are already working on a dual-fuel engine—the Cat® 3500E—which will use methanol and is expected to begin testing this year.SAAM Towage is active in towage and marine services at more than 90 ports in 13 countries in the Americas.

Technology group Wärtsilä has been selected to supply replacement engines for two inland waterway tug pusher vessels operating in Paraguayan rivers.The vessels are owned by ADM Naviera Chaco (ADM). The vessel modifications and new engine installations will be carried out in Asuncion-Paraguay.The new engines will enable a reduction of the environmental impact and increase the efficiency of the tug pushers.ADM’s stated target is to reduce emissions by 25% by 2035, and the advanced…

WinGD reports it has confirmed key parameters for its X-DF-A ammonia-fueled engine design after full-load testing at its Engine Research and Innovation Centre in Winterthur in Switzerland.The performance and emission measurements deliver timely assurance as the first users prepare their vessels and auxiliary systems for ammonia fuel.The tests confirm engine performance data that WinGD has published in its General Technical Data (GTD) software, available online, and guaranteed to customers.Operation on ammonia achieved the same thermal efficiency as for diesel fuel…

Swiss marine power company WinGD’s first methanol-fueled engine is to be delivered to shipyard after passing factory and type approval tests, ahead of installation in 16,000 TEU container ship.The ten-cylinder, 92 bore X-DF-M engine is said to be the biggest methanol-fueled engine built to date.There are 56 X-DF-M engines on order across bore sizes ranging from 52 to 92, in similar cylinder configurations and engine rating fields as diesel-fueled X-Engines.The addition of methanol…

Swiss marine power company WinGD has conducted early testing of its new X-DF-A ammonia-fueled engine design, proving that the key parameters are in line with expectations.A 52-bore single-cylinder version of the X-DF-A engine is running at the company’s Engine Research and Innovation Centre (ERIC) in Winterthur, with final validation to be completed in time for the first engine deliveries in June 2025.Single-cylinder testing will allow rapid validation of the ammonia combustion system under engine conditions…

Swiss marine power company WinGD has received an order for 16 X-DF dual-fuel engines for eight liquefied natural gas (LNG) carriers, after a late-stage switch by a major ship owner.The order was received relatively late in the newbuilding planning phase as operational and delivery concerns arose around the engines originally selected, according to WinGD.Despite the timing, close collaboration with engine builder, yard and shipowner – which already uses X-DF engines on several…

As the industry shifts towards alternative fuels in response to environmental regulations and sustainability goals, the safety risks associated with these fuels cannot be overlooked, says the International Association of Classification Societies (IACS). Crankcase explosions, a critical hazard in engine operation, becomes even more concerning in the context of gas and low flashpoint fuels. IACS has therefore published the latest edition of Unified Requirement (UR) M10, which introduces…

Vessel owners are making new fuel choices, but increasingly, they have options to help reduce the risk of doing so.The latest engine developments aim to make it easier for owners to avoid the chicken-and-egg fuel price and availability risks of new fuels.As Roger Holm, President of Wärtsilä Marine and Executive Vice President at Wärtsilä Corporation recently pointed out, the challenge is that owners won’t commit to a fuel today that is expensive, only produced in small quantities and may be usurped by another fuel that scales faster and more affordably.

In the course of the market launch of the MAN D3872 for workboats, MAN Engines is expanding its portfolio with additional performance for heavy-duty applications. The new MAN D3872 in the LE427 variant for heavy-duty applications has an output of 920 kW (1,250 hp) at 1,800 rpm and is equipped with an exhaust gas aftertreatment system consisting of a diesel particulate filter and SCR system.This means that the engine meets the strict emission standards of the EU Stage V for inland navigation with the limits of 1.8 g/kWh nitrogen oxides (NOx)…

Ships trials reportedly confirmed that CM Technologies’ new scuffing sensor can detect early onset cylinder wear in marine diesel engines. Trials onboard a number of large containerships and a two-stroke engine Baltic ferry showed it was possible to measure the friction in the cylinder when the engine is running.CMT noted a trend in cylinder liner scuffing following the widespread use of 0-0.50% low sulphur fuel (LSF). These fuels together with insufficient or over lubrication…

On October 1, 2024, NYK began operation of a test engine facility in Chiba Prefecture to evaluate the safety of new fuels.The introduction of new marine fuels used to necessitate testing and analysis at external engine facilities, in addition to trial operations, all of which would require about two years to complete. Shortening this period and reducing the cost of testing have been key to meeting the increasing demand for new fuels, such as biofuels, and satisfying the environmental regulatory measures of various countries.

MAN Engines has introduced its MAN D3872 LE432 workboat engine with a displacement of 30 liters.The V12 engine has an output of 1,213kW (1,650hp) at 2,100rpm, making it suitable for medium-duty applications such as wind farm supply vessels, ferries, passenger ships and fishing boats.Further power variants of the MAN D3872 (1,471 and 1,618kW or 2,000 and 2,200hp at 2,300 rpm) for light applications have already started in production.The MAN D3872 engine has a completely new basic engine and benefits from improved coolant delivery through a new coolant pump and thermostat housing…

MAN Energy Solutions has announced a new generation of its Common Rail injection system for its medium-speed, four-stroke engine portfolio.Its core components comprise an optimised and uniform high-pressure pump and a newly developed injector, integrating the CR 1.6 valve group and making the entire system setup more coherent. It is initially being introduced via the MAN 49/60DF engine.MAN Energy Solutions reports that CR 2.2 can boast of up to 38% increased rail-pressure for all applications, and over 33% increased target time-between-overhaul intervals for most components.

Auramarine has launched an ammonia fuel supply system designed in adherence to all safety, design and material requirements for the fuel.The system is suitable for both two-stroke and four-stroke engines as well as other ammonia consumers. Safety measures include gas and leak detection, ammonia capture, reliquefying and ammonia release mitigation functions.The system has been developed in collaboration with experts on ammonia as well as using findings from the HENNES research…

Chevron Marine Lubricants has experts at SMM 2024 demonstrating how the company is leveraging the synergy across its products and services to develop a suite of solutions designed to help lower the carbon intensity of the marine sector while aligning with global carbon emission goals.One example is Chevron’s taro ultra advanced 40 which has been granted gas validation status by WinGD. It covers all WinGD gas (LNG burning) engines and follows the previously granted ‘gas general use’ approval…

The Transport Emission Control Team at VTT Technical Research Centre of Finland has released a study of methane slip and other emissions from an LNG-powered marine engine operating under real-life conditions.The now published study ‘Methane slip and other emissions from newbuild LNG engine under real-world operation of a state-of-the art cruise ship' details the results of a study conducted on the newbuild cruise ship MSC World Europa. One of its five engines, a Wartsila 46DF…