Gastech, Tokyo Stafford... · Contents Introduction to Trelleborg LNG SSL function overview FSRU /...

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Gastech, TokyoApril 2017

Trelleborg Marine Systems1

Andrew StaffordTechnical DirectorTrelleborg Marine Systems UK. Ltd.

Contents

Introduction to Trelleborg

LNG SSL function overview

FSRU / FSU Applications

Current compatibility issues

Conclusions

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

Trelleborg Marine SystemsOrganizational structure

Marine

Fender Business

(Geographical focus)

Marine

Technology Business

(Product line focus)

EMSA IMEA N. America

(Rubber)

Broussard

APAC Global

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

Our Products

Our technology is fitted in over 1000 ships and

terminals worldwide

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

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

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

ESD – SSL System History 2

• Qatar and Das Island

• Fibre-optic SSL

• Shell STASCO

• LNG BONNY Multiple Shipboard systems for worldwide trading

• Fully Integrated Multiple Shipboard systems for worldwide trading

• BP British Merchant Worldwide LNGCs

2006• Trelleborg’s SeaTechnik™ Digital system for use with FSRU/ FSU

• Production of SIGTTO Link connectors

• 2007 connector maker discontinued production

• Universal Safety Link

• LNG small scale transfers

Large Scale SSL

LNGC Ship – Shore Connectors

37-w Pyle

4-w Pyle

6-w Miyaki

6-w Fibre

Cable Entry

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

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

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

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

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

MLM via SSL

LNGC will only ever have a standard

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

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

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

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

Data for LNG Fuelling

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

Gastech, Tokyo Stafford... · Contents Introduction to Trelleborg LNG SSL function overview FSRU /...

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