DNV GL © 2017 25 September 2017 SAFER, SMARTER, GREENERDNV GL © 2017
25 September 2017
World’s First Dual-Fuel Cruise Ship –Challenges and perspectives
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Anthony Teo ,
Technology and LNG Business Development Director
DNV GL © 2017 25 September 2017
About DNV GL
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DNV GL © 2017 25 September 2017
Content
Technical solution regarding LNG Fuelling onboard AIDAprima
Approval process ports (safety analysis, QRA)
Experience regarding LNG operation
Carnival Maritime LNG perspectives
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DNV GL © 2017 25 September 2017
LNG uptake by vessel segment
4
2 322
3
23
311
1
1
4
4
4
8 59
410
14
12
14
17
21
34
33
11
Updated 1 September 2017Excluding LNG carriers and inland waterway vessels
DNV GL © 2017 25 September 2017
AIDAPrima
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Gross tonnage: 125,000 tons
Length overall: 300 m/ 984 ft
Width: 37.6 m/ 121 ft
No. of decks: 18
No. of staterooms: 1,643 (accommodating up to 3,286 passengers)
Builder : Mitsubishi Heavy Industries ( Nagasaki, Japan)
Delivered : March 2016
Class: DNVGL
DNV GL © 2017 25 September 2017
AIDAPrima
First cruise vessel in the world
equipped with a dual fuel main engine
and dual fuel auxiliary boiler to allow
the use of LNG as a fuel source when at
berth
– to generate electricity and
steam/hotwater,
– Gas consumption of the dual fuel
engine is supplied by onshore LNG
truck (no LNG tank onboard).
Regular 7-day-schedule calling
Hamburg, Le Havre, Southampton,
Zeebrugge and Rotterdam throughout
the entire year
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DNV GL © 2017 25 September 2017
Technical solution for LNG fuelling
Pressure Build Up as safe & simple transfer
system
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Reliable, safe fuelling system
Reduction of possible sources of
release next to the vessel (less
flange connections compared to
a pump solution)
Fuel preparation room
Safety zone around the LNG
truck
DNV GL © 2017 25 September 2017
Safety concept for LNG Fuelling of AIDAPrima
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Extensive safety concept developed for
LNG fuelling operation (5 s for ESD)
Double walled hose including
monitoring system
LNG tank safety valves connected
with the vent system of the vessel
QCDC couplings and dry break away
coupling for fuelling hose and vent
line
Safety related valves are fail-safe-
close (in case of loss of electrical
energy supply (blackout), service air,
control signals)
Gas detection at the truck manifold
CCTV
Fire fighting equipment
DNV GL © 2017 25 September 2017
Safety Analysis
Risk analysis for:
– Onboard system
– Transfer System
– Simultaneous operation
Quantitative Risk Assessment
for the different Ports
– Location specific risk
– Societal risk criteria
Dispersion Analysis
9
0.00 0.06
km
DNV GL © 2017 25 September 2017
First LNG Fuelling for Aida Prima in Hamburg on 7th of May 2016
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DNV GL contribution:
– Technical project
management for
AIDA/Carnival Maritime
– Safety studies
– Permission management
with authorities (port
states, flag)
DNV GL © 2017 25 September 2017
Operator’s Experience
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Original concept was a pumped solution
– Needed to be changed due to logistics and operational reasons
– Working closely with partners (Marine Services and DNV GL) developed
pressure build up system in short time
– Also required QRAs to be revalidated
Initial safety distances were too large to allow SIMOPS
– Double walled hose and reduced activation ESD solved this
Original supply partners dropped out in late 2015
– Required quick selection of new supplier and haulier
Approval process
– Not consistent despite all ports being in EU
– Different approval process required – complicated by truck to ship delivery
– Different risk acceptance criteria applied
DNV GL © 2017 25 September 2017
Lessons Learnt
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Choose partners – LNG supplier, Class, Flag, Ports, etc with care
– Ensure there is shared and common understanding of safety and
environmental objectives
– Be ready to help educate those that are not familiar with LNG
Leverage existing experience in this space.
Regular updates critical
– Make sure that everyone is kept well informed of status of project and critical
deliverable dates etc
Be prepared for setbacks and ready to intervene if necessary
Training, exercises and planning are critical
– Dry runs invaluable. What works on paper does not always work in practice
– Crew training on actual equipment essential, particularly interaction between
ship & truck operators
– Accidents will happen but can be mitigated by training and readiness to act
LNG as fuel is not the same as LNG as Cargo
DNV GL © 2017 25 September 2017
The path to becoming ‘LNG Ready’
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1. STRATEGY – FUEL DECISION
• High level technical feasibility
• Fuel consumption estimates
• Financial feasibility
• Cost, pay-back time and sensitivity analysis
• Fuel availability
2. CONCEPT CAPTURE
• Detailed technical feasibility study
• Performance benchmarking
(Machinery and tank evaluation and
optimization)
• Concept Design Review
(Statement - class acceptance)
• HAZID
CLASS APPROVAL (after vessel is ‘LNG Ready’
3. INITIAL DESIGN
• Approval in Principle
4. RISK ASSESSMENT
• Gas fuel safety risk assessment (mandatory
by IMO)
Decision Points. Proceed with the LNG option or not.
DNV GL © 2017 25 September 2017
Safety Studies - OUR TRACK RECORD
Segment World wide Safety studies US safety studies.
Regas 56 10
FSRU 19 1
On-shore liquefaction 36 1
FLNG 18 1
LNG Bunkering 45 3
General concept/studies 11 2
Peak shavers 5 4
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Classed 60% of world LNG Fuelled Vessels in operation
More than 45 LNG Bunkering Risk Studies at ports around the world
DNV GL © 2017 25 September 2017
Safety Studies- OUR TRACK RECORD
Recent work in North America
WSF: Security and Risk Assessment, 2012
IMO: LNG Fuel Feasibility Study for North America, 2013
LNG America: LNG Bunkering Feasibility Study in US Gulf, 2013
MARAD: LNG Bunkering Risk Study, 2013
API (Ex ANGA) : SIMOPS study for LNG Bunkering, 2015
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DNV GL © 2017 25 September 2017
SAFER, SMARTER, GREENER
www.dnvgl.com
Navigating Complexity
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Anthony Teo
+1-346-333-5397