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MAN ES to develop methanol retrofit solutions for medium-speed marine engines

Development is part of research project CliNeR-ECo which aims to develop concepts for medium-speed marine engines that will enable retrofitting of ship fleets at reasonable economic and technical costs.

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MAN Energy Solutions on Wednesday (19 July) announced that it will begin developing retrofit solutions for medium-speed marine engines as part of a research association including WTZ Roßlau gGmbh and TU-Darmstadt. 

The three-year research project, CliNeR-ECo, is funded by the German Federal Ministry for Economic Affairs and Climate Action (BMWK) with initial work having already commenced at the beginning of 2023.

CliNeR-ECo aims to develop concepts for diverse, medium-speed, marine engines that will enable the retrofitting of entire ship fleets at reasonable economic and technical costs. The project is focusing on the climate-neutral fuel, methanol, which is produced from green hydrogen with the intention being that results should quickly spawn other developmental projects for series production.

In this respect, MAN Energy Solutions is currently planning a first retrofit project based on an MAN 48/60 engine; the first retrofit of a fully functional test engine is scheduled to reach the testbed in 2024.

With these maritime retrofit technologies, ship owners will be offered solutions that enable their existing fleets to comply with future emission targets for greenhouse gases. These will be introduced by the International Maritime Organization (IMO) and the EU in increasingly stringent stages from 2025 onwards in order to ultimately realise climate-neutral maritime shipping.

Dr Alexander Knafl, Head of R&D Four-Stroke Engines at MAN Energy Solutions in Augsburg, said: “MAN Energy Solutions is pursuing this project in close alignment with its own strategy for developing sustainable technologies and welcomes the opportunity to work with external research partners. For us, the path to the decarbonisation of the maritime economy begins with the switch to climate-neutral fuels. In this context, methanol is an excellent candidate as it is climate-neutral when produced from green hydrogen.”

Christian Kunkel, Head of Combustion Development, R&D Four-Stroke Engines at MAN Energy Solutions, added: “Electrification of the maritime industry is only possible in niche segments but not in so-called ‘long-distance shipping’. Energy sources such as carbon-neutral methanol and ammonia will therefore play a prominent role in the maritime sector in the future.”

“Methanol is an ideal fuel for converting engines on existing ships and methanol tanks can usually be integrated into existing ship designs without too much trouble, while engine conversion costs can be kept within reasonable limits. Thus, with climate-neutral methanol production, the climate effect of the maritime industry can be improved very quickly while dispensing with the need for newbuilding construction. This is a crucial point as ship lifespans can last several decades in some cases and newbuildings demand a lot of resources.”

Dr Christian Reiser, CEO of WTZ Roßlau gGmbH, said: “Together with our partners, we are pleased to launch this ambitious project for CO2 reduction in shipping. The development of a retrofit-capable, methanol-combustion process presents us with exciting challenges, which we will solve together in this strong alliance.”

Prof. Dr.-Ing. Christian Hasse, Head of the Department of Simulation of Reactive Thermo-Fluid Systems at TU Darmstadt, said, “Carbon-neutral and carbon-free fuels play a prominent role in our current research with methanol as a fuel for retrofitting marine engines playing a special role. The investigation of mixtures is, scientifically, highly exciting and directly related to the technical solution we will eventually develop. Ultimately, we will gain new insights into the dynamics of flow, injection and their interaction with the combustion chamber walls by combining high-resolution simulations and optical measurement techniques. This transfer of basic research into practical application is a strength of engineering research.”

Project partner roles

WTZ Roßlau gGmbH is a specialist in the field of energy conversion and will use a medium-speed test engine to develop combustion-process strategies for the retrofit concepts. This will be done in close cooperation with MAN Energy Solutions and will also form the basis for defining requirements for exhaust-gas aftertreatment.

The Technical University of Darmstadt will use a flow bench to work out the fundamentals of methanol mixtures in engines at its ‘Reactive Flows and Measurement Technology’ and ‘Simulation of Reactive Thermo-Fluid Systems’ departments. Together with MAN Energy Solutions, it will also develop the CFD simulation models required for adapting the technology to different engine sizes.

MAN Energy Solutions will transfer the retrofit concepts developed to large-volume four-stroke engines and prepare commercial development and production.

 

Photo credit: MAN Energy Solutions
Published: 21 July, 2023

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Alternative Fuels

Yang Ming orders six LNG dual-fuel, ammonia-ready containerships from Hanwha Ocean

Each of the six new vessels will have a capacity of up to 13,650 TEU and feature LNG dual-fuel propulsion and Ammonia Fuel Ready specifications.

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Yang Ming orders six LNG dual-fuel, ammonia-ready containerships from Hanwha Ocean

Taiwanese shipping firm Yang Ming Marine Transport Corporation (Yang Ming) and South Korean shipbuilder Hanwha Ocean on Wednesday (2 September) signed a shipbuilding contract for six 13,000 TEU class LNG dual-fuel container vessels. 

The contract was signed by Dr. Chuck Tsai, Chairman of Yang Ming, and Mr. Charles Kim, CEO of Hanwha Ocean. The vessels are scheduled for delivery between 2028 and 2029. 

They will complement Yang Ming’s existing fleet of 10,000+ TEU vessels and serve as key vessels on East-West services, with deployment flexibility across trade lanes connecting Asia with the East and West Coasts of North America, South America, and the Mediterranean. 

Each of the six new vessels will have a capacity of up to 13,650 TEU and feature LNG dual-fuel propulsion and Ammonia Fuel Ready specifications.

“As Yang Ming transitions toward net-zero emissions, LNG provides a relatively mature and economically viable alternative fuel solution, capable of reducing greenhouse gas emissions by approximately 20%,” the company said. 

“At the same time, ammonia can serve as a carbon-free fuel by utilising converted LNG storage facilities, while offering relatively lower conversion costs and comparatively well-developed supply chains and infrastructure. The Ammonia Fuel Ready design will therefore provide Yang Ming with greater flexibility in responding to increasingly stringent international regulations on greenhouse gas emissions.”

In addition, the vessels will be equipped with Type B LNG fuel tanks with a design pressure of 1.0 bar to enhance the safety and efficiency of LNG operations, together with a range of energy-saving technologies, including Wind Shields, Rudder Bulbs, Pre-Swirl Stators, and Shore Power Systems. Smart ship technologies and cybersecurity protection features will also be incorporated to enhance operational efficiency, safety, and reliability while effectively reducing fuel consumption and greenhouse gas emissions.

Deliveries under Yang Ming’s next-generation fleet optimization plan commenced earlier this year. By 2030, a total of 24 new vessels are expected to enter service. 

This includes 18 LNG dual-fuel vessels—comprising five 15,500 TEU, seven 16,000 TEU, and the six 13,000 TEU vessels under this contract—alongside six 8,000 TEU methanol dual-fuel-ready ships. 

 

Photo credit: Yang Ming Marine Transport
Published: 4 September, 2026

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LR, China’s MARIC unveil tanker concept ready for three future bunker fuels

Both secured AiP for a new 114,000 DWT product and crude oil tanker designed to accommodate future conversion to LNG, methanol or ammonia.

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LR, China’s MARIC unveil tanker concept ready for three future bunker fuels

Lloyd’s Register (LR) and the Marine Design and Research Institute of China (MARIC) on Thursday (3 September) have secured Approval in Principle (AiP) for a new 114,000 DWT product and crude oil tanker designed to accommodate future conversion to LNG, methanol or ammonia.

Announced at SMM 2026, the concept addresses one of the biggest investment challenges facing shipping today: the need to develop vessels and capabilities that can support a range of alternative fuel options and pathways as technologies, infrastructure and regulations evolve.

While LNG is already a mature fuel pathway, methanol and ammonia remain at an earlier stage of development, with questions around global fuel availability, infrastructure development, economics and long-term adoption.

The 114,000 DWT tanker concept has been designed as a product and crude oil carrier that can accommodate future conversion to LNG, methanol or ammonia as technologies, regulations and fuel supply chains mature. By incorporating conversion readiness at the design stage, the concept aims to reduce future retrofit complexity and provide owners with greater confidence when planning long-term fleet investments.

The design concept was reviewed against LR’s July 2026 class rules and regulations, including requirements relating to ships using gases and other low-flashpoint fuels, alongside relevant IACS Common Structural Rules for oil tankers. Final classification and statutory approval remain subject to full compliance with all applicable rules and regulations.

Theo Kourmpelis, Global Business Director for Tankers, Lloyd’s Register, said: “Shipowners are being asked to make major investment decisions today despite continued uncertainty around which fuels will dominate in the decades ahead. Alternative fuel solutions each offer potential pathways to compliance, but fuel infrastructure, regulation and economics continue to evolve at different speeds around the world.

“Designs that preserve flexibility will be critical in helping owners manage risk while preparing for multiple future scenarios.”

Si Nan, Marine & Offshore Marketing Department Vice Director, MARIC, said: “As the industry explores different decarbonisation pathways, shipowners need vessel designs that can adapt alongside technological and regulatory developments. This concept was developed specifically to provide greater fuel flexibility and long-term resilience, allowing owners to respond to changing market requirements without being locked into a single fuel strategy.

“Receiving Approval in Principle from Lloyd’s Register is an important milestone that validates the design concept and supports its future development.”

 

Photo credit: Lloyd’s Register
Published: 4 September, 2026

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Alternative Fuels

DNV: Alternative-fuelled vessel orders hit highest monthly level since October 2024

LNG-fuelled vessels accounted for the vast majority of August activity while the strong summer performance marked a significant acceleration in ordering activity after a relatively slow start to the year.

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DNV: Alternative-fuelled vessel orders hit highest monthly level since October 2024

Latest data from classification society DNV’s Alternative Fuels Insight (AFI) platform alternative-fuelled vessel ordering was strong in August, with 52 new vessels added to the platform.

This is the highest monthly total since October 2024 and follows another active month in July, when 47 vessels were added to the database.

LNG-fuelled vessels accounted for the vast majority of August activity, with 46 orders recorded. The container segment led the way with 30 orders, while the car carrier segment contributed a further 12 LNG-fuelled vessels. In addition, four ethanol-fuelled bulk carriers and two hydrogen-powered bulk carriers were added during the month, as well as one LNG bunker vessel.

The strong summer performance marked a significant acceleration in ordering activity after a relatively slow start to the year. In total, 242 alternative-fuelled vessel orders have been placed in the first eight months of 2026, representing a 27% increase compared with the same period in 2025.

LNG remains the dominant fuel choice, accounting for 63% of all alternative-fuelled vessel orders registered so far this year. Container vessels represent the largest share of these LNG orders (59%), followed by car carriers (30%).

Jason Stefanatos, Global Decarbonization Director at DNV Maritime, said: “The past two months have been particularly strong for alternative-fuelled vessel ordering, with August recording the highest monthly total we’ve seen since October 2024. This has helped lift year-to-date orders to a level well above the same period last year.

“LNG remains the leading fuel choice, driven largely by activity in the container and car carrier segments. These sectors have been among the earliest adopters of alternative fuels, supported by predictable liner operations and increasing demand from cargo owners to reduce emissions across supply chains. 

“For many owners, LNG offers a combination of emissions reductions, fuel availability and future flexibility while the longer-term fuel landscape continues to evolve. 

“At the same time, the latest figures include orders for ethanol- and hydrogen-fuelled vessels, highlighting that owners continue to explore a range of decarbonization pathways. Different segments are making different fuel choices, but the overall level of activity demonstrates continued investment in lower-emission shipping.”

Screenshot 2026 09 04 at 12.29.26 PM Screenshot 2026 09 04 at 12.29.36 PM

 

Photo credit: DNV
Published: 4 September, 2026

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