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New twists on marine loading arms and hoses4 August 2021 • 09:00-09:45 BST
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Presentation documents:Page 2: Sander Verweij, Gutteling GroupPage 20: Ricardo Martinez, Engineering Adviser, OCIMF
Safety & Recommendations Composite Hoses for LNG transfer operations
LNG SHIPPING & TERMINALS WEBINARAugust 4, 2021
Part of
Gutteling was founded by Mr.Peter Gutteling in 1990.
In March 2021 Gutteling Group has been acquired by Trelleborg Group.
Gutteling is nowadays World Leader in the production of Composite Hoses for
critical applications like:
• Ship to Ship operations
• Ship to Shore operations
• Heavy Duty Marine operations
Gutteling Composite hoses can be used for a wide range of products:
• Oils
• Petrochemicals
• Chemicals
• LPG (@ -104°C)
• LNG (@ -164°C)
THE LEADER IN COMPOSITE HOSES & TRANSFER
RISK MANAGEMENT
First LNG STS
LNG Hose development
Commercial LNG STS
Publication EN 1474-II
First LNG Bunkering
Development of FSRU projects
LNG Bunkering
development
LNG Bunkering STS
Development EN 1474-II
Publication EN 1474-II
20082006 20072005 2013 2014 2017 2018 2018 2020
Building up experience and knowledge
Timeline LNG Transfer development
Operator Operation Hose size involved No. of transfers Av. Hose No. Total hose operations
Excelerate Ship to Ship 8” and 10” >2500 6 -8 lengths > 15.000
Hoegh LNG Ship to Ship 10” >1000 6 lengths > 6.000
BW LNG Ship to Ship 10” >500 6 lengths > 3.000
LNGSTS Ship to Ship 8” and 10” >2000 6 lengths > 12.000
Golar Ship to Ship 10” >500 6 lengths > 3.000
Bumi (Malta) Ship to Ship 10” >100 8 lengths > 800
JOVO Ship to Ship 8” >100 4 lengths > 400
ENGIE Zeebrugge LNG Bunkering 8” >250 2 lengths > 500
Seagas Viking Grace LNG Bunkering 6” >2000 1 length >2000
Shell LNG Bunkering 6” >1000 4 lengths >4000
Yamal LNG Ship to Ship 8” and 10” >150 6 lengths >900
MOL Ship to Ship 8” >100 Several >60
Paradus Energy Ship to Ship 10” >150 6 lengths >900
Others Ship to Ship / Bunkering
2” – 10” >2500 Several >7.500
TOTAL > 60.000
Transfer facts 2005 - 2021
Latest requirements from EN 1474-II:2020 included
Impact of revised EN 1474-IIstandard
Requires extensive testing
Leads to more reliable and safe transfer solutions
EN 1474-II:2008 / 2020 comparison
Ch.7 Qualification requirements; 7.3.2.1
Tensile stiffness
Load conditions (ambient & cryogenic)
Boundry conditions
Test procedure
Acceptence criteria
6.3.3 stiffness characterization tests
No specific description
No leaking/damage during:
Testing ambient/cryo, loads
acc. table 2 & 3
ND, -162[ºC], pressure range 0 -10.5
[barg], axial load 0 -15 [kN],
ND, 20[ºC], pressure range 0 -
10.5[barg], axial load 0 -15 [kN],
TNO-034-DTM-2009-
00733
TNO 2016 LNG
21BAR TEST REPORT
Ch.7 Qualification requirements; 7.3.3.1
Pressure leaktest
Load conditions (ambient & cryogenic)
Boundry conditions
Test procedure
Acceptence criteria
6.3.1 Ambient pressure leak test
6.3.2 Cryogenic pressure leak test
No specific requirements
No leaking/damage during:
Testing ambient/cryo, loads
acc. table 10 & 11
Max permeability at ambient
temperature 0,5L/min
No leaking in both cryo and ambient
conditions
Ambient leaktest permeability: 0.015
[l/h] GAN of 0 [barg] = 0,00025 l/min
TNO-034-DTM-2009-
00733
Ch.7 Qualification requirements; 7.3.3.5
Creep test
New test added and specified in ANNEX BNo Creep test ANNEX B
Slip and creep test at 10" LNG hose in
cryogenic and ambient conditions
TNO 2019 R11944
Annex B Guidelines for additional testing
program
Specific guidelines for:
Combined loads and in service conditions
Damage tolerance philosophies
Inspectability of hose assembly conditions
Guidance on impact and crush damage
Guidance on creep
Guidance on wear
No guidelines
Knowledge of the guidelines described
in ANNEX B has its origin from Gutteling
qualification program. Lessons learned
are used for these guidelines
Ch.7 Qualification requirements; 7.3.3.6
Tensile and Torsional axial operational
load test
New test added with load conditions and approval
criteria. Including test procedure.
Tensile and torsional loads combined
6.3.14 Cryogenic tensile test
6.3.16 Cryogenic twist to MAAT
No combined test, no approval criteria
No leaking/damage during:
Testing ambient/cryo
conditions acc. table 14
ND, -162[ºC], MWL14 [kN], MWP:10.5
[barg],
no leakage, no damage
Max Tensile load before rupture =615kN
in cryogenic conditions
Max allowable twist (MAAT) - 2.4°/mtr.
No leakage at MAWP in both CW and
CCW.
TNO-034-DTM-2009-
00733
EN 1474-II:2008 / 2020 comparison
Hose handling in operational conditions
• Lifting
• Connection
• Cooling down
• LNG transfer
• Warming up
• Disconnection
• Lifting
• Storage
Building up experience and knowledge
• Lifting……….....
• Connection……
• Cooling down...
• LNG transfer.....
• Liquid freeing...
• Purging………..
• Disconnection..
Critical : Yes, due to several variablesVariables : Crane driver, weather conditions
Critical : No
Critical : Yes, several variablesVariables : Cooling down rate system, Human factor,
weather conditions, opening & closing valves, timing limits
Critical : No, less variablesVariables : LNG composition and temperature, flowrate
Critical : Yes, due to several variablesVariables : Human factor, weather conditions, LNG
composition & temperature, N2 supply, drainingmethode, opening & closing valves, timing limits
Critical : Yes, due to several variablesVariables : Gas temperature and pressure, timing limits
Critical : No
• Lifting……….....
• Connection……
• Cooling down...
• LNG transfer.....
• Liquid freeing...
• Purging………..
• Disconnection..
Critical : Yes, due to several variablesVariables : Human factor, weather conditions, LNG
composition & temperature, N2 supply, drainingmethode, opening & closing valves, timing limits
Slug flow during liquid freeing
F = 2.4*A x 0.5 ρ U2
When liquid is poled in a hose and the system is started up this pool due to wave formation on the pool can be pushed as a slug (leaving bit of liquid behind) with high velocity through the hose• This may leads to very high forces on bends• This may leads to high shear forces at the wall (0.1 bar/m)• This may leads to very high forces on other components in the system
- Avoiding pressure peaks
- Avoiding LNG slugs in gas
- Avoiding RPT (Rapid Phase Transition)
- Avoiding high gas flow velocities
- Avoiding expansion waves in the system
Liquid freeing and purging
• Design pressure upgraded to 21 bar up to 10”
• Hoses delivered for continuous LNG transfers• Hoses delivered for Ship Shore interfaces
• 16” hoses developed, not been certified yet
• Longer hose lines to 40 – 50 meter
• LNG hoses with additional Thermal insulation
• Detailed LNG flow dynamic investigations
Future steps…….
Contact Details
Sander Verweij
Managing Director
Gutteling Group
Email: s.verweij@gutteling.com
Website: www.gutteling.com
LNG Shipping & Terminals Webinar Week - LondonNew twists on marine loading arms and hoses
04 August 2021
Marine loading armsBackground & history
First Edition Published 1980
Second Edition Published 1987
Third Edition Published 1999
Fourth Edition Published 2019
Marine loading armsPurpose and scope
• This publication is aimed at:
– Owners, including marine terminal owners and operators who are procuring Marine Loading Arms (MLAs) for new or existing facilities
– Engineering Procurement and Construction (EPC) contractors working on behalf of an owner
– MLA vendors – Classification Societies and other quality
assurance organisations – Regulators– Shipbuilders and fabricators
• For the following products:
– Oil and oil products– Liquefied gas including Liquefied Natural Gas
(LNG) and Liquid Petroleum Gas (LPG), ammonia and liquid ethylene
– High Pressure Natural Gas (HPNG)– Chemicals– Vapour return
• With the following types of operation:
– Manual– Powered
• For the following uses:
– Jetty mounted – Trailer mounted – Transfer between offshore facilities and ships – Bunker vessels
Marine loading armsPublication contents
• This publication provides guidance to owners and vendors on designing and procuring MLAs
• It is the definitive guide to MLA construction and specification, covering topics such as applications, variability, operating envelopes, products transferred, servicing, manifold spacing, jetty and piping layouts, arm styles
• Contents
1. Introduction 2. Overview of Marine Loading Arms and their features3. Specification, design and build process4. Design5. Marine Loading Arm protection and safety systems6. Hydraulic and electrical control systems7. Quality assurance and control8. Prototype manufacturing and acceptance tests9. Manuals10. Specialist Marine Loading Arms
Marine loading armsProtection and safety systems chapter
• Addresses the design philosophy and design basis of MLAs and their associated operating, safety and control systems
– General– Deciding the level of monitoring and protection– Marine Loading Arm alarm and monitoring systems– Emergency Release System – Linked Emergency Release System and Emergency Shutdown systems– Control system failure mode analysis– Safety Integrity Levels
Marine loading armsSpecialist MLAs chapter
• Addresses the specific design issues related to specialist MLAs
– Offshore Marine Loading Arm– High Pressure Natural Gas Marine Loading Arms– Bunkering Marine Loading Arm
Marine loading armsSpecification tables
• Defines information that should be provided by the vendor for the installation, maintenance and safe operation of the MLAs
• These tables provide a tool for ensuring that all required information for a design and quotation of an MLA is provided by the owner to the vendor
• How to use the e-Tables? The Excel Workbook containing the Tables has a “Read Me” Worksheet, with a full explanation
• Tables:
– Table A1 Arm design details– Table A2 Product information and operational conditions– Table A3 Environmental data– Table A4 Ship and manifold details– Table A5 Ship motions– Table A6 Jetty design– Table A7 Berth electrical supply and safety– Table A8 Additional relevant information– Table B Marine Loading Arm options– Table C Required documents
Marine loading armsFuture work on MLAs
• Current work underway by ISO to develop a standard for liquified hydrogen marine transfer arms
– ISO/CD 24132 Ships and marine technology —Design and testing of marine transfer arms for liquefied hydrogen
• For additional information see: ISO website.
• Based upon existing ISO standard on liquified natural gas marine transfer arms and OCIMF MLA 4
– ISO 16904:2016 Petroleum and natural gas industries — Design and testing of LNG marine transfer arms for conventional onshore terminals
Marine loading armsResources
Book available at Witherby PublishingDesign and Construction Specification for Marine Loading Arms - Fourth Edition
Information available at OCIMFDesign and Construction Specification for Marine Loading Arms (MLA4)
Electronic tables available at OCIMFMarine Loading Arm Tables
Marine loading armsPublications & Advocacy
Fourth Edition Published 2018
Fourth EditionPublished 2019
Sixth Edition Published 2020
Second Edition Expected 2022
World Association for Waterborne Transport Infrastructure (PIANC)
Society of International Gas Tanker and Terminal
Operators (SIGTTO)
International Standard Organisation (ISO)
British Standards Institute (BSI)
www.ocimf.org
Oil Companies International Marine Forum 29 Queen Anne's Gate, London, United Kingdom, SW1H 9BU Tel: +44 (0) 20 7654 1200
Our Vision
A global marine industry that causes no harm to people or the environment