ENERGY-EFFICIENT SOLUTIONS FOR CRUISE SHIPS, FERRIES &
MEGAYACHTS
Photo: Royal Caribbean International
INTEGRATED SOLUTIONSWrtsil provides integrated solutions for
cruise vessels, ferries and megayachts. Through technical expertise
and with support from our customers, we improve the sustainability
of these vessels using proven or innovative systems and a host of
environmental services. Whilst boosting energy efficiency may
appear as a cost-effective economy-driven requirement, the real
challenge is to find new ways to reduce emissions. Being an agile
technology leader and eager to promote environmentally sound
practices within the cruise industry, Wrtsil is aiming to go beyond
environmental regulations. We follow our customers projects
throughout their lifecycle. Through early involvement and long-term
commitment, we strive to provide leading-edge solutions.
THE ENVIRONMENTThe maritime industry is facing ever increasing
pressure to reduce its environmental impact. Regulations are
becoming more stringent, and new authorities are establishing their
own emission regulations in local areas. At the same time, the
cruise business is booming and the number of cruise berths is
growing rapidly. Even though cruising is a leisure business, it is
also one of the most visible parts of the shipping sector. Cruise
operators will, therefore, need to put more and more effort into
becoming greener. To ensure maximum efficiency, reliability, and
environmental performance over the entire lifecycle of the
installation, Wrtsils solutions are customized to meet specific
ship design and operational requirements. Most of the worlds
harbours are located close to densely populated areas, hence the
strong demand during recent years for no visible smoke. Wrtsil
makes smokeless engines possible. Our common rail technology is a
fuel injection system that facilitates high levels of combustion
efficiency and offers economical power generation, whilst reducing
exhaust emissions.2
Photo: Royal Caribbean International
These benefits are achieved by the accurate regulation and
timing of high pressure fuel delivery to the cylinders. A UNIC
(Wrtsil Unified Controls) engine control system monitors the
engines operating parameters and uses the resulting data to adjust
fuel flow, thereby maximizing performance under all conditions. The
system also allows switching between different fuel grades while
maintaining maximum efficiency. Our existing engines can also be
modified with both primary and secondary methods of developed NOX
reduction technologies.
Primary methods include: Dual-fuel engines Efficiency rudder
Highly efficient propellers Oceanguard seals CBM Secondary methods
include: Compact Silencer System Scrubber SCR Senitec products
Wetpac
GAS IS TOMORROWS FUELDue to its excellent combustion performance
and reliability level the Wrtsil 46 has become the most popular
engine for power generation onboard new cruise vessels. OASIS OF
THE SEAS Main engines: 3 x 12V46 + 3 x 16V46 Power generated: more
than 96 MW Shipyard: STX Europe, Turku, Finland Ship Owner: Royal
Caribbean Delivered: 2009 Future cruise ships will have to be
capable of operating at reduced levels of emissions, and such
reductions will require more than just engine design modifications.
For Wrtsil, this is an ongoing area of investigation. For instance,
the use of LNG as fuel will eliminate all SOX emissions, reduce NOX
emissions by 80%, and lower CO2 emissions by more than 20%. New
concepts are being designed in cooperation with customers, and will
be modified to suit individual vessel design. These innovations
will be available during the coming few years.
LIFECYCLE COMMITMENTBased on our customers needs we provide
everything from design and engineering, project management,
comprehensive building support and commissioning. Wrtsils worldwide
service network provides lifetime support. We deliver: Integrated
systems and solutions with standardized interfaces Guaranteed
system performance Simplicity of installation
To reduce CO2 and SOX emissions we have increased engine
efficiency, developed multifuel engines, and produced technologies
that advance the efficiency of the entire ship. To reduce emissions
to the water, our sealing systems offer environmentally sound
alternatives that prevent oil spills. We also offer efficient
treatment systems for sludge and bilge water. We strive to optimize
the operational reliability, cost-efficiency, and environmental
sustainability of cruise ships. LNG CRUISE SHIP CONCEPT3
RO-PAX SHIP CONCEPTLIGHTWEIGHT CONSTRUCTION Lightweight
materials such as aluminium can be used in the superstructure to
save weight and reduce fuel consumption.
ENERGY SAVING LIGHTING The use of more efcient light sources can
reduce the electrical and heat demand.
PROPULSION CONCEPTS CRP Counter rotating propellers have a very
high efciency rating.
INTERCEPTOR TRIM PLANES An Interceptor creates a Iift effect
that reduces the propulsion power demand.
CODED MACHlNERY CODED machinery combines the features of
electric and mechanical propulsion to offer the best efciency for
ships with varying operating proles.
ONE SUPPLIER: WRTSILWrtsil aims to deliver the optimum solution
and performance tailored to fit the operating profile of each
vessel. Having a single supplier throughout the entire life cycle
of the vessel, from conceptual design to construction and
operation, offers distinct benefits: Opportunity for shipyards to
focus on their core competences (e.g. project management, hull
production) Single responsibility , one point of contact = Wrtsil
Reduced risk of incompatibilities Less coordination work between
parties Classification for complete systems Time savings in design
and engineering Time savings in purchasing process Integrated
system documentation Production schedule discipline Improved
environment and work safety Outfitting work from ship to shops
Warranty handling
REDUCING OPERATIONAL COSTSOur CBM systems use a unique
combination of visual and manual inspections, online condition
monitoring of mechanical installations (with in-built sensors for
example), system efficiency data, and numerous other indicators.
Using all this information, the CBM system enables us to accurately
determine the actual overall status and condition of your system
and ultimately the maintenance it needs. CBM makes maintenance
proactive, rather than reactive, by spotting fault sources and
emerging operational trends well before any failure occurs. The
main aims are to balance the time between overhauls, to minimize
downtime while maximizing safety, and to guarantee optimized engine
performance under all conditions. CBM offers a substantial cost
advantage since it closely conforms to the customers operational
availability requirements. By diagnosing and calculating the
optimal performance parameters, and thereby predicting the future
status of the equipment, it is possible to: optimize operations
minimize inspection overhauls replace parts at the optimal time
tune maintenance to other business factors.
INTERCEPTOR TRIM PLANES
NEW CONCEPTSEnergy efficiency and innovative new designs serve
to produce cost reductions that are essential to improving the
competitiveness of ferry operations. One important benefit is the
prospect of saving as well as earning money. LIGHTWEIGHT
CONSTRUCTION The use of lightweight structures can reduce overall
ship weight. In structures that do not affect the global strength
of the ship, the use of aluminium or similar lightweight materials
can be a viable solution. A 20% reduction in steel weight will give
a reduction of ~9% in propulsion power requirements. However, a 5%
saving is more realistic, since high tensile steel has already been
used to some extent in many cases.
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COOLING WATER PUMPS, SPEED CONTROL Variable speed operation of
the pumps optimizes pump energy consumption.
Photo: INCAT
TURNAROUND TIME IN PORT Fast port turnaround time enables vessel
speeds at sea to be decreased. FUEL TYPE LNG Using LNG as fuel
reduces a ships electrical and heat demand.
Good news for shipbuilders seeking high performance: Wrtsil
waterjets boost high speed ferries. The Natchan World has the
capacity to carry 355 cars or 450 lane metres of trucks and 193
cars.
NATCHAN WORLDWaterjets: 4 x LJX1500SR Speed (vessel loaded): 40
knots Shipyard: Incat Tasmania, Australia Operator: Higashi Nihon
Ferry Delivered: 2008
CODED MACHlNERY
FUEL TYPE LNG
CRP PROPULSION Counter rotating propellers consist of a pair of
propellers behind each other that rotate in opposite directions.
The aft propeller recovers some of the rotational energy in the
slipstream from the forward propeller. CRP propulsion has been
documented as having one of the highest efficiencies. The power
reduction for a single screw vessel is 10% to 15%. CODED MACHINERY
Combined diesel-electric and diesel-mechanical machinery can
improve the overall efficiency of ships whose operational profile
involves varying load modes. The electric power plant will produce
benefits at part load, were the engine load is optimized by
selecting the use of the appropriate number of engines. At higher
loads, the mechanical part will offer lower transmission losses
than fully electric machinery. FUEL TYPE LNG Switching to LNG fuel
reduces a ships energy consumption because of the lower demand for
electricity and heating. Savings in total energy can amount to up
to 4% for a typical ferry in 22 knots cruise mode. The difference
in electrical load is approx. 380 kW. This has a major impact on
emissions.
TURNAROUND TIME IN PORT Turnaround time can be reduced by, for
example, improving manoeuvring performance, and by enhancing cargo
flows through innovative ship designs, ramp arrangements or lifting
arrangements. Impact of reducing port time for a typical ferry.
Port time Energy demand 2 h 100% -10 min 97% -20 min 93% -30 min
90% ENERGY SAVING LIGHTING Through the use of more efficient
lighting where possible, and by optimizing the use of lighting,
demand for electricity and air conditioning can be reduced. This
results in a lower hotel load and correspondingly reduced auxiliary
power demand. Ferry fuel consumption saving: ~1%
INTERCEPTOR TRIM PLANES Although the interceptor has proven to
be more effective than a conventional trim wedge in some cases, so
far it has been used only in cruise vessels and RoRos. An
interceptor is cheaper to retrofit than a trim wedge. Propulsion
power demand decreases by 1 to 5%. This means a corresponding
improvement of up to 4% in total energy demand. COOLING WATER
PUMPS, SPEED CONTROL Pumps are major energy consumers and the
engine cooling water system contains a considerable number of
pumps. In many installations a large volume of extra water is
circulated in the cooling water circuit. Operating the pumps at
variable speed would optimize the flow according to actual need.
Pump energy savings case studies (LT only) show a possible gain of
20 to 30 %.
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HIGH STANDARDS FOR MEGAYACHTSConcerns about the environment,
ethical issues, and changes in lifestyle and incomes are
influencing the luxury end of the market. The absence of smoke,
soot, noise, or vibration transmitted from engine room machinery to
other parts of the vessel are essential for megayachts. Achieving
such levels of performance is by no means easy, but Wrtsils cruise
ship and naval vessel experience and know-how is an invaluable
asset. We welcome the challenge to provide megayachts with
outstanding machinery that complies with the requirements for
silence, lack of vibration, compactness, flexibility and
efficiency. We use the latest state-of-the-art technologies and
seek always to minimize the ecological footprint of the
vessel.6
YOUR MOST VALUED BUSINESS PARTNERThrough innovative integrated
solutions and services, Wrtsil sets out to be your most valued
business partner. An integrated approach also means a single
contact point for project management and installation, a one-stop
shop for all aspects of lifecycle support, and optimized overall
performance combined with substantial energy savings. As all the
systems are engineered to work together, their compatibility and
functionality is guaranteed. Risks associated with technical issues
and time schedules are minimized. Wrtsil offers generating sets
fitted with alternators mounted on a common bedframe, which meet
our customers requirements for low levels of noise and vibration.
By utilizing double mounting arrangements and acoustic enclosures,
the highest standards can be met. We also provide engineering
expertise on the design of the auxiliaries fittings and pipe
clamping, which may have a significant influence on the resilient
mounting efficiency. Our well established reputation for excellence
and leadership In integrated electric propulsion, has been earned
through the delivery of more than 50 generating sets for military
applications, and 15 for research vessel applications.
Additionally, because of their reliability and efficiency, Wrtsil
generating sets have been selected as the electrical power source
in emergency situations. Products contributing to Wrtsils market
leadership in cruise ship machinery include pulling thrusters, the
Low Loss Concept and Wrtsils Compact Silencer System. With pulling
thrusters, the flow field into the propeller is very clean, so
associated noise and vibration levels are extremely low. The
absence of shaft lines, gears and brackets
SERVICESCustomers recognize us as their preferred service
supplier to ensure the availability and cost-efficient operation of
their installations. They benefit from having their entire power
system fully serviced by one global supplier. Wrtsil Services
provides full service throughout the product lifecycle for both
marine and power plant customers, and is constantly developing its
network worldwide. Additionally we are continually broadening our
range of services by adding valuable products and specialist
services to our portfolio. In this way we also support equipment
onboard your vessel or at your installation and in our numerous
workshops around the globe and in key ports, regardless of your
equipment make. We offer lifecycle efficiency solutions in the
following services product lines: Engine Services Propulsion
Services Electrical & Automation Services Boiler Services
Operations & Management Services Training Services
Environmental ServicesPhoto: Oceanco
These services cover everything from basic support with parts,
field service and technical support to service agreements and
condition based maintenance; from installation and commissioning,
performance optimization, including upgrades and conversions, to
environmental solutions, technical information and online support.
The choice available to you extends from parts and maintenance
services to a variety of comprehensive, customized long-term
service agreements, including performance and operations &
management agreements. Our Services organization currently features
more than 11,000 dedicated professionals in 70 countries. Wrtsil
adds value to your business at every stage in the lifecycle of your
installations. With us as your service partner, you receive many
measurable benefits such as availability and performance,
productivity gains and cost benefits. Above all, peace of mind in
the knowledge that your installation is being serviced by the most
experienced partner you could have Wrtsil.
save space, and the rotatable thrusters also act as rudders,
thus providing excellent manoeuvring performance. As well as saving
energy and reducing vibration levels, Wrtsils patented Low Loss
Concept saves valuable space by removing the need to install bulky
transformers. In vessels where every cubic inch counts, this adds
real value to the machinery package. Wrtsils patented Compact
Silencer System (CSS) allows unwanted noise to be efficiently tuned
out. Compared to conventional solutions, CSS components are more
slender, weigh less, are easier to install, feature a lower
pressure drop, and are more effective in reducing environmental
impacts.
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Wrtsil is a global leader in complete lifecycle power solutions
for the marine and energy markets. By emphasising technological
innovation and total efficiency, Wrtsil maximises the environmental
and economic performance of the vessels and power plants of its
customers. Wrtsil is listed on the NASDAQ OMX Helsinki,
Finland.
WRTSIL is a registered trademark. Copyright 2010 Wrtsil
Corporation.
Photo: Royal Caribbean International
08.2010 / Bocks Office / Litoset
