HANSA 10-2023

SCHIFFSTECHNIK | SHIP TECHNOLOGY
sources of uncertainty, higher than most
of us have believed. A study from JoRes
and MARIN on these uncertainties was
presented by Dmitriy Ponkratov during
the event. The result of this study was that
sea trials usually come with an uncertainty
of 4-6 %. This lack of accuracy and certainty
remains a challenge for performance
analytics. It also is a challenge when
assessing new technologies like wind assisted
propulsion. Luckily, an ITTC committee
is working on recommended procedures
for performance indicators in
this sector to enable a fair comparison
and facilitate the investment decisions.
The progress of ITTC was shown by Sophia
Werner from SSPA during the conference.
Standardization remains key to
bring structure to science; it is like a »base
recipe« in cooking process.
Standards and regulation
Experts meeting to discuss standardization
has been a common thread of
HullPIC since it started in 2016 in the
wake of the ISO 19030 standard development.
Due to his extraordinary efforts
concerning this standard, Geir Axel Oftedahl
who had been the ISO 19030 project
manager received the »Hull Performance
Hero award« during the conference. The
standard is generally a good reference for
hull and propeller performan≤ce analysis
and has drawn attention to the field.
However, further efforts are needed,
Carsten Maniche from Navigator Gas
says »There is a lack of awareness concerning
hull and propeller performance
management within our industry. This
needs to be addressed and improved to
reach the IMO goals of 2030.« Recipes in
the field are yet by far not as renowned as
the one for Lasagna it seems, at least outside
of HullPIC community.
On the positive side, the latest regulations
by the International Maritime Organization
and the European Union force
shipping companies to put the limelight
on the question of how to improve ship
efficiency. There was a common sense in
the audience that the pace of regulation
has increased and though initial concepts
of regulations like the Carbon Intensity
Indicator may not be ideal, they were perceived
as overall positive and helping the
industry to be innovative. »Last time we
saw as much innovation as now was at
times of the oil crisis«, was stated by Lajos
Holmslykke from Torm concerning this
matter.
The conference featured a good mix of participants from various stakeholders
Data analytics can reveal the current
hull and propeller performance, but for
keeping it at a certain level concrete efforts
are often required. Hence Volker
Bertram, the organizer, chose to combine
HullPIC 2023 with the PortPIC 2023
which covers the latest advancements in
the field of biofouling analytics and inwater
cleaning. »We may argue the Carbon
Intensity Indicator and we can criticize.
However, keeping a hull clean will
be remaining key for a high ship efficiency,«
commented Riccardo Caponi from
Deep Tracker. Frequent inspection and
frequent cleaning, the so-called »grooming«
technologies are venturing further
into the industry. So far, only few robotic
hull cleaning systems are used, but according
to the conference survey many
service providers and operators are confident
that robotic hull grooming is the future,
leading to the lowest overall fuel
Participants gathered in the garden of the monastery close to Siena/Italy
costs. In-water cleaning and inspection
progresses, with evolving guidelines and
standards as flanking measures. Irene
Øvstebø Tvedten from Bellona foundation
presented progress on an in-water
cleaning ISO standard. An initiative for a
cooperative platform for hull cleaning
was presented by Solène Guéré from
Ocean Solution.
All this and more can be found in the
conference proceedings which are publicly
available on www.hullpic.info and
have become a basis for many studies in
the field. »The conference features a good
mix of participants from various stakeholders,
with discussions centred around
practical aspects rather than purely academic
ones.« says Yigit Demirel from
Hempel. More recipes and solutions will
be discussed next year, with HullPIC in
March in Ireland and PortPIC in October
in Italy.
© Bertram
© Brewer
HANSA – International Maritime Journal 10 | 2023
41