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Integr8 Fuels: Are bunkers too easy a target when problems alleged onboard vessels?

Problem fuels do exist and can result in difficulties, but without adequate precautions even an on specification VLSFO has the potential to cause damage, it advises.

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Integr8 Fuels, the bunker trading and brokerage arm of Navig8, on Wednesday (22 July) published an article outlining other often overlooked factors that could damage components onboard vessels apart from bunkers; it was written by Chris Turner, Global Manager for Quality and Claims:

Prior to IMO 2020 there was a lot of conjecture mingled with a fair spattering of trepidation as to the perceived level of quality issues we would see with many stakeholders suggesting significant problems were on the horizon using analogies of our old foe 1% Sulphur LSFO and the relatively recent Houston problem among others.

Overview

As it happened and as widely reported many of these gloomy predictions did not come to pass, Q1 2020 passed with all stakeholders relatively unscathed despite the new world of a patchwork quilt of VLSFO qualities. Things have changed more recently however with ARA being thrust into the spotlight as a result of high TSPs and an increase in the prevalence of Estonian Shale Oil in VLSFO blends.

Circumstances of high TSP of course allow the buyer to lodge a claim against the seller given the value exceeds a maximum contractual guarantee however what has become apparent is an increasing frequency of fuels that appear on specification to Table 2 parameters of ISO 8217 yet have been alleged to have caused fuel management related issues as well as equipment component damage.

Curiously still,many of these fuels when examined forensically have been found not to contain any sinister contaminants and do not correlate with a “problem” fuel according to testing experts.

Food for thought

It would of course be remiss of us to not acknowledge that problem fuels do exist and can result in difficulties or damage onboard vessels, however it is important to make the point that without adequate precautions even an on specification VLSFO has the potential to cause damage.

This is nothing new, indeed HSFO routinely contained 30 to 60mg/kg of Aluminium and Silicon (cat fines). Even these levels of abrasive catfines would have to be removed to below 15mg/kg by purification and of course if this was not efficient or effective then harmful particles could reach the engine resulting in catastrophic damage to cylinder liners etc.

Indeed whilst catfines are generally lower in VLSFOs almost a quarter of all VLSFOs however in Singapore for example still have catfines of greater than 40mg/kg and still require extensive purification.

This should not be too difficult a task given the lower density and viscosity of VLSFOs when comparing to HSFO but it is vital to remember that purifiers still need to be set up correctly considering the pour point of the fuel as well as its density and viscosity.

It is also entirely possible that the reason for a chocked purifier may be as a result of mixing with previous ROB, not in the storage tank – as this is hardly ever noted these days – but in the settling tank itself.

VLSFO’s also require to be injected at the correct viscosity, generally speaking most OEMs require a viscosity of 12cSt at the engine inlet. Indeed it may be that in extreme cases of low viscosity that this may not be possible to achieve without a cooler being employed or without being in close proximity of the pour point if it is waxy.

Finally, an increasingly new and important area of focus is engine lubrication and an increase in engine wear which may result should this not be optimized to the new fuels.

Prior to IMO 2020 It was well publicized that as an Industry we would have to move to a lower Base Number (BN) Cylinder Lubrication Oils (CLOs) given prolonged running on 0.5% Sulphur fuels however what appears to have developed is a pattern of vessels suffering major engine damage since switching to VLSFO despite also all switching to BN 40 CLOs and all fuels meeting the ISO 8217 specification.

Evidence has been published of red tinged piston tops and abrasion as a result of calcium deposits which have not been removed due to the reduced detergency of BN 40 CLO’s.

Indeed you could argue that some of these issues were foreseen as early as March 2018 when MAN indeed recommended the introduction of Cermet (Chromium) coated piston rings at next overhaul given their experiences with ULSFOs. MAN have also issued a number of service letters in recent months describing the benefits including providing a “seizure resistant surface against the liner.. avoiding micro seizures and lowering scuffing risks”

Conclusion

Therefore all things considered, whilst it is absolutely prudent to put the fuel supplier on notice of alleged damage at the earliest opportunity so as to avoid the robust time bar clauses in the bunker contract we must not lose sight of the fact that these issues may well be as a result of other factors rather than the fuel itself.

It is therefore important to go into every investigation with an open mind, work on fact and not assumption, collate and document evidence which would survive robust cross examination and more importantly do so in a transparent manner.


Photo credit and source:
Integr8 Fuels
Published: 23 July, 2020

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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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Alternative Fuels

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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