Integrity has applications in a number of marine industry operations. Follow the
menu links to discover the benefits of INtegrity in the following operations:
- “Due Cause” determination by Port State Authorities
- Fuel quality assurance for suppliers for fuel management and for use during fuel
- Fuel quality assurance for vessels and for use during bunkering
- Fuel quality assurance and Continuous Emissions Reporting Systems at the engine for
These applications are all based on the Integrity Principle.
The Importance of Fuel Quality:
Fuel quality is defined by measurements made in the laboratory. Laboratory analysis
is recognised commercially, in dispute resolution and by legislation.
Fuel quality is defined for a range of properties, typically those defined by the
ISO 8217 standards or as agreed by contract. The range of properties, the difficulties
associated with their measurement online and the cost of these measurements together
with the burden they place or would place on crew are all such as to place the burden
of quality determination on the laboratory analysis.
Online measurement of quality is not commonly used and is not recognised or legitimised
in any way.
The fuel quality is an unknown during many critical operations, or at least, it is
only as good as the last laboratory analysis and since that analysis the fuel quality
may have been compromised either deliberately or inadvertently, by a range of mechanisms
commonly encountered in the management and transfer of fuel.
Until now the industry has accommodated the limitations of only knowing the fuel
quality through the laboratory analysis but in today’s market the high cost of fuel
and that for many operators it is the single biggest operating cost, or the second
largest operating cost, and the advent of marine pollution legislation impacting
on fuel quality, means that these limitations must be addressed.
The options are:
- Continue as before
- Online “Alternative Measurement” methods
- The Integrity Solution
The continue as before or “do nothing” option is less and less tenable each day especially
as it involves significant financial risks for suppliers and vessels. That means
that sooner or later the industry will need or or be obliged to opt either for alternative
measurement or the Integrity Solutions.
The Alternative Measurement option requires that critical parameters are measured
online and not in the laboratory. This would require a change in the legislation
but more importantly, it means that each property of interest must be measured and
such measurements may be individually, and certainly cumulatively, very expensive
and may add to the crew burden.
They may also be vulnerable to misrepresenting the suitability of the fuel. For example,
MARPOL requires an exact density and an exact sulphur content are reported. These
may both now be measured online. However, supposing the fuel has an original sulphur
content of 1.6% and is adulterated with water. When bunkered the density (used to
account for the amount of fuel invoiced) will be higher and the sulphur content will
be lower, sufficiently so as to appear to be suitable for use in a SECA. However,
the fuel treatment system may remove most or all of the water before it reaches the
engine. Thus the fuel being burnt will again have a sulphur content in excess of
the permitted amount.
These problems are all resolved by the Integrity Solutions.
The Integrity Principle:
Integrity recognises that fuel quality is best determined in the laboratory.
The laboratory analysis reports on all fuel properties including the density at 15°C
and the kinematic viscosity at 50°C and 100°C. These are both properties that can
be easily and affordably measured online with a single instruments, the digital viscometer.
By measuring these two parameters in real time and continuously, they may be compared
continuously to the values reported from the laboratory analysis.
If the density or the viscosity does not match the fuel certificate values, then
the fuel quality has changed and the certificate is no longer valid.
If the density and the viscosity match the fuel certificate values then the fuel
certificate is valid in all respects and for all properties.
To understand this and the value of this measurement, please follow the menu links.