Gastech, TokyoApril 2017
Trelleborg Marine Systems1
Andrew StaffordTechnical DirectorTrelleborg Marine Systems UK. Ltd.
Trelleborg Marine Systems2
Contents
Introduction to Trelleborg
LNG SSL function overview
FSRU / FSU Applications
Current compatibility issues
Conclusions
Trelleborg Marine Systems3
A World Leader in Engineered Polymer Solutions
Group profile
Focused polymer group
Founded in 1905
Annual sales:
SEK 31 billion
~ € 3.23 billion, $ 3.60 billion
Employing about ~ 23,000 people in
about 50 countries worldwide
~ 120 manufacturing facilities
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Trelleborg Marine SystemsOrganizational structure
Marine
Fender Business
(Geographical focus)
Marine
Technology Business
(Product line focus)
EMSA IMEA N. America
(Rubber)
Incl.
Broussard
APAC Global
Foam
Marine TechnologyPort of the Future Team
Docking & Mooring
TMS Melbourne
OIl & Gas Transfer
TMS UK
Navigation & Piloting
TMS Denmark
Indian Engineering CenterMarine Fenders
Product Manager Technical Director
Executive AssistantFinance
Marketing Excellence
BU President
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Our Products
Our technology is fitted in over 1000 ships and
terminals worldwide
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Worldwide SSL SystemsTrelleborg
Conventional size LNGC SSLs 470+
FS(R)U vessels SSLs 37
Conventional LNG terminal SSLs (inc. FLNG) 110+
FS(R)U terminal SSLs 20
Small scale LNG SSLs 29
Small scale LNG terminals 6
Furukawa Electric Co, Japan
Conventional size LNGC SSLs (Fibre optic only) 154
LNG terminal SSLs (Fibre optic only) 34
Others
Total conventional size LNGC SSLs 7
Total terminal SSLs 2
SSL by Supplier
Trelleborg
Furukawa
Others
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Ship Shore Link System - Purpose
Ship-Shore mutual shutdown;
• Should conform to SIGTTO recommendations for SSL
• Both a cause and an effect in shutdown logic
Telecommunications;
• Clear lines of communication between operators
Data transfer between ship and shore;
• Mooring load data from mooring hooks to the ship
ISO28460:2010 defines the link options;
• Mandates a primary and independent backup to be available
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ESD – SSL System History 1
1975• El Paso – Algeria to USA
• PYLE NATIONAL EEx’d’ connector
1975• Shell Brunei-Japan Project
• One-off EEx’ia’ at Lumut
1987• SIGTTO-MTL ESD Link
• ESD for LPG only
1989• Japan Terminals
• Furukawa Fibre-optic SSL
1991• Yung An - Taiwan
• ITT Cannon Telecoms
• Pneumatic ESD in Japan
• Miyaki EEx’d’ connector Telephones in Japan
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ESD – SSL System History 2
1995
• Qatar and Das Island
• Fibre-optic SSL
1995
• Shell STASCO
• LNG BONNY Multiple Shipboard systems for worldwide trading
2000
• Fully Integrated Multiple Shipboard systems for worldwide trading
• BP British Merchant Worldwide LNGCs
2006• Trelleborg’s SeaTechnik™ Digital system for use with FSRU/ FSU
2010
• Production of SIGTTO Link connectors
• 2007 connector maker discontinued production
2012
• Universal Safety Link
• LNG small scale transfers
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Large Scale SSL
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LNGC Ship – Shore Connectors
37-w Pyle
4-w Pyle
6-w Miyaki
6-w Fibre
Cable Entry
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Telecoms 1200 baud modem interface is not provided by some QRH vendors
Hotline is point to point
PABX / PSTN interfaces are to be analogue
Sound powered telephone legacy at some terminals
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Additional SSL Functionality
Summary of current projects
CNG ESD (FSRU) / Platform Shutdown (FSU);
• Additional high integrity signal in both directions
Process data to / from FS(R)U;
• Gas composition
• Tank levels / volumes / temperatures
• Flow rates
• Send out temperature & pressure
• Shore gas tie-in feedback to FSRU
• Extensive (38) DCS integration hardwired signals (Digital I/O, Analogue I/O)
FS(R)U / shore QRH integration
FS(R)U control of shore facility
CCTV
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FS(R)U to Shore Data
100Mbps Ethernet via SONET
digital SSL payload
Ethernet packet is separate to
ESD and telecoms;
• No risk of corruption
Limited by legacy OM2 fibre;
• 155Mbps reliably (SONET OC3)
• 1.5km end to end maximum
Limited to the standard of copper
cable and connections (Ex’d’);
• CERTAINLY NOT CAT5!
Ethernet extenders are used;
• Up to 15Mbps
• Speed is auto-ranged to cables
• Matched pairs
Fibre Optic Electric
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FSRU ‘Tandem’ / ‘Jetty’
Independent links
Direct STS comms via shore SSL
LNG transfer via analogue fibre / electric *ISO28460*
CNG transfer via digital fibre / electric
Process data via digital fibre / electric ethernetextender
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FSRU
LNGC
FSRU ‘Double Bank’
FSRU bridges the systems
Direct shore – LNGC comms via FSRU SSL
LNG transfer via analogue fibre / electric *ISO28460*;
• Options for MLM
CNG transfer via digital fibre / electric
Process data via digital fibre / electric ethernetextender
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MLM via SSL
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LNGC will only ever have a standard
SSL
Project requirements to integrate shore
QRH with FSRU QRH;
• No standard exists to take data from
shore and add it to FSRU data
• Data formats can be vendor specific
• FSRU requires more SSL functionality
Project requirements for FSRU control
of shore QRHs
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Problems with Vessel Re-Use
FSRU vessels are routinely built to one spec then upgraded;
• Terminal requirements not looking to existing projects
Same process implemented multiple ways;
• Vessels installing multiple interfaces performing the same function
• Dangers of following the original LNGC development path
Moving vessels between terminals means constant upgrade
Expectations that FSU original SSL can be tweaked to suit all projects
More thought needed to how to trade a vessel in the future
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Data Formats
Although the same data points are required different formats used;
• Modbus RTU
• OPC server / client
• Discrete I/O via UDP/IP
Even if a common transmission type was used, data addressing
should be consistent;
• Data address registers
• Data length / type
Future proofing by allowing ‘spare’ addresses
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Small Scale LNG
Standards and guidelines being written;
• Current documentation limited to ‘linked ESD systems shall be used’
Digital SSL offers increased functionality to large scale SSL;
• ESD, telecoms, process data, control functions
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Data for LNG Fuelling
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Conclusions
New applications risk following large scale multi-connection systems;
• Increased cost
• Increased complexity
• Compatibility problems
Processes have common data requirements;
• Standardisation of data formats is possible
If LNGCs can trade worldwide, why limit FSRU applications?
Use of well proven digital technologies allow compatibility
No one party can do this, it needs to be addressed by everyone
together
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