Implemented
progressively over the past decade, the fleet-wide rollout has established a
common testing platform enabling consistent fuel and lubricating oil analysis
across its fleet regardless of vessel type, trade route or operating
profile. CMT claims that the rollout
represents a significant shift in the way ship managers and owners carry out
onboard engine condition monitoring across large fleets. “Rather than being treated solely as a
vessel-level engineering function, fuel and oil analysis is becoming part of a
broader operational control framework that supports fleet-wide decision-making,
maintenance planning and risk management,” said CMT managing director Uwe
Krüger. “Shipping companies are looking for solutions that provide immediate
results onboard. They want monitoring consistency across their fleets.” According to CMT the trend to standardized diesel engine performance
monitoring followed the increased use of very low sulfur fuel oils (VLSFO) and other
blended fuels after the entry into force of the IMO 2020 rules. “This created new challenges for ship
operators in terms of fuel stability, compatibility and contamination, which are
becoming more frequent,” said Krüger. Traditionally,
operators have relied on shore-based laboratories to analyze fuel and oil
samples. But while laboratory analysis remains an important part of machinery
condition monitoring, the time required to obtain results limits the ability to
respond effectively to developing issues, notes CMY. “More and more shipping
companies are equipping their vessels with our onboard fuel and lube test
cabinets to make day-to-day fuel and lube analysis easier for crews,” Krüger
said. “Regular testing is now the norm, routinely testing for water content,
cat fines, viscosity, density, iron wear, and lubricating oil conditions.” Water contamination, if undetected, promotes
corrosion in engine components. Cat fines (catalytic particles of aluminium and
silicon from the refining process) can pass through fuel treatment systems and
cause rapid wear in pumps, injectors and cylinder liners. Viscosity and density
checks at delivery give operators independent verification of bunker quality
rather than reliance on supplier paperwork. And iron content analysis in
cylinder drain oil tracks wear rates over time, flagging deterioration before
it becomes a serious problem. “Testing
is such an important consideration it is now being built into daily operations
onboard rather than carried out periodically or outsourced. A key benefit of
the standardised approach is the ability to compare results directly between
vessels,” said Krüger. “Because measurements are generated using the same equipment
and procedures, technical teams can benchmark performance across sister ships,
identify abnormal trends and investigate any deviations. This has transformed
onboard testing into a fleet-wide intelligence tool.” More recently, the shipmanager has upgraded
its testing program with the replacement of traditional wet chemical iron test
kits with CMT’s ferrous wear measurement device. The change has reduced
dependence on reagents while improving repeatability and consistency in wear
monitoring. “Earlier identification of abnormal wear gives crews and technical
managers more time to investigate and address problems before they develop into
catastrophic engine failure and costly disruption. A single testing platform
also cuts procurement complexity and ensures consistent training and data
interpretation across the fleet,” Kruger noted.