DNVGL-RP-G105 Development And Operation Of Liquefied .

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RECOMMENDED PRACTICEDNVGL-RP-G105Edition October 2015Development and operation of liquefiednatural gas bunkering facilitiesThe electronic pdf version of this document found through http://www.dnvgl.com is the officially binding version.The documents are available free of charge in PDF format.DNV GL AS

FOREWORDDNV GL recommended practices contain sound engineering practice and guidance. DNV GL AS October 2015Any comments may be sent by e-mail to rules@dnvgl.comThis service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this document. The use of thisdocument by others than DNV GL is at the user's sole risk. DNV GL does not accept any liability or responsibility for loss or damages resulting from any use ofthis document.

GeneralThis document supersedes DNVGL-RP-0006, January 2014.Text affected by the main changes in this edition is highlighted in red colour. However, if the changesinvolve a whole chapter, section or sub-section, normally only the title will be in red colour.On 12 September 2013, DNV and GL merged to form DNV GL Group. On 25 November 2013 Det NorskeVeritas AS became the 100% shareholder of Germanischer Lloyd SE, the parent company of the GL Group,and on 27 November 2013 Det Norske Veritas AS, company registration number 945 748 931, changed itsname to DNV GL AS. For further information, see www.dnvgl.com. Any reference in this document to “DetNorske Veritas AS”, “Det Norske Veritas”, “DNV”, “GL”, “Germanischer Lloyd SE”, “GL Group” or any otherlegal entity name or trading name presently owned by the DNV GL Group shall therefore also be considereda reference to “DNV GL AS”.Main changes— New structure and naming of all sections.— Additional scope covering inland shipping, bunkering between different IMO-type tanks and otherdifferent bunkering configurations (e.g. cassette bunkering).— Updated according to ISO/TS 18683, ISO 16901, ISO DIS 20519, ISO 6976:2005, ISO 6578:1991 andSGMF gas a marine fuel safety guidelines.— New sections on quality and quantity metering (Sec.7, App.E and App.F).— Update of the guidelines for risk assessments, including safety zone, security zone and execution andhandling of SIMOPS (App.D).— Update of all DNV GL rules references.Editorial correctionsIn addition to the above stated main changes, editorial corrections may have been made.Recommended practice, DNVGL-RP-G105 – Edition October 2015DNV GL ASPage 3Changes – currentCHANGES – CURRENT

CHANGES – CURRENT . 3Sec.1Sec.2Sec.3Sec.4Sec.5Introduction . 61.1Objective .61.2Purpose of this recommended practice.61.3 Scope and limitations of this recommended practice.6Application . 82.1Use and users of this recommended practice .82.2Regulatory requirements.82.3Relationship with other specifications, guidelines and standards.82.4Assumptions.92.5 Appendices.9Definitions. 103.1Terms and definitions.103.2Abbreviations .123.3 Verbal forms.13Development of liquefied natural gas bunkering facilities . 144.1Establishing the business case .144.2Stakeholder involvement .144.2.1 Port or national authority . 144.2.2 Bunkering facility developer/operator . 144.2.3 Receiving ship . 154.3Risk assessments for developing liquefied natural gas bunkering facilities 154.4Layers of defence .154.5Functional requirements for the design of liquefied natural gasbunkering facilities .164.5.1 Equipment standards . 164.5.2 Bunker hose(s) . 174.5.3 Loading arms and hose-handling equipment . 174.5.4 Connectors . 174.5.5 Systems for inerting and purging . 174.5.6 Trapped liquefied natural gas and liquid locks . 174.5.7 Vent mast . 184.5.8 Draining systems for transfer lines . 184.5.9 Safety zone and ignition source control . 184.5.10 Emergency shutdown system . 184.5.11 Emergency release system . 194.5.12 Prevention against electrostatic and galvanic ignition . 194.5.13 Leakage detection . 204.5.14 Cryogenic spill protection . 204.5.15 Fire protection and suppression . 20Safety management system . 225.1Purpose of a safety management system .225.2Safety management systems for liquefied natural gas bunkeringoperations .235.2.1 Safety management systems compatibility . 235.2.2 Safety policy and objectives . 245.2.3 Organizational planning . 245.2.4 Maintenance system. 245.2.5 Identification and implementation of standards . 25Recommended practice, DNVGL-RP-G105 – Edition October 2015DNV GL ASPage 4ContentsCONTENTS

Sec.6Sec.7Sec.8Operation of liquefied natural gas bunkering facilities . 296.1Stakeholder involvement .296.1.1 Port or national authorities . 296.1.2 Bunkering facility operator/developer . 296.1.3 Receiving ship . 296.2Risk assessments for the operation of liquefied natural gas bunkeringfacilities .306.3Roles and responsibilities.306.4Operating procedures and checklists.316.5Functional requirements for operating liquefied natural gasbunkering facilities.326.5.1 Compatibility of the bunkering systems. 326.5.2 Communication during liquefied natural gas bunkering operations . 326.5.3 Pre-bunkering operations . 326.5.4 Personal protective equipment . 336.5.5 Implementation and enforcement of the safety zone. 336.5.6 Connection and testing of the emergency shutdown system. 346.5.7 Connection and testing of the transfer system . 346.5.8 Inerting/purging operations before transfer . 346.5.9 Transfer operations . 346.5.10 Leakage detection during transfer . 356.5.11 Topping up and transfer stop . 356.5.12 Draining of the transfer lines . 356.5.13 Inerting operations post transfer . 356.5.14 Bunkering complete and disconnection of systems. 356.5.15 Quantity and properties of the supplied liquefied natural gas. 356.5.16 General maintenance. 36Determination of liquefied natural gas quantity and properties . 377.1Background .377.2Determination of energy content.397.2.1 Mass of liquefied natural gas transferred . 407.2.2 Composition of liquefied natural gas – quality . 417.2.3 Vapour return. 417.2.4 Energy consumption during bunkering . 417.3Liquefied natural gas delivery note .427.4 Measurement process management .42References . 43App. A DNV GL risk management framework. 44App. B Hazards associated with liquefied natural gas . 48App. C Functional requirements as stated in ISO guidelines for liquefied naturalgas bunkering facilities . 51App. D Recommended practices for risk assessments of liquefied natural gasbunkering facilities . 52App. E liquefied natural gas characteristics. 74App. FMain calculation to determine the energy content. 75Recommended practice, DNVGL-RP-G105 – Edition October 2015DNV GL ASPage 5Contents5.2.6 Document control . 255.2.7 Risk management . 255.2.8Emergency management . 265.2.9Management of change. 275.2.10 Training. 28

SECTION 1 INTRODUCTION1.1 ObjectiveLiquefied natural gas (LNG) has proved to be a viable option as a fuel for ships. Key differences fromtraditional marine fuels include its low flashpoint and cryogenic temperature, but also importantly the factthat the supply of LNG as bunker fuel is not yet widespread or routine. Hence, it is essential to understandthe different risks involved in operations using LNG as opposed to other conventional fuels.The objective of this recommended practice (RP) is to establish the guidelines required to protect the safetyof people, property and the environment when developing and operating LNG bunker facilities.Furthermore, this document is intended to increase the overall understanding of the risks associated withLNG bunkering and demonstrate how to best manage the associated risks.1.2 Purpose of this recommended practiceThe purpose of this RP is to provide guidance to the industry on development, organizational, technical,functional and operational issues in order to ensure global compatibility and secure a high level of safety,integrity and reliability for LNG bunkering facilities.The functional requirements provided in this RP shall be in line with, but elaborate on, ISO/TS 18683Guideline for systems and installations for supply of LNG as fuel to ships /1/.1.3 Scope and limitations of this recommended practiceFigure 1-1 shows the typical project lifecycle process of an LNG bunkering facility. The scope of this RPstretches across the activities, from the strategy phase through to the operation of an LNG bunkeringfacility.StrategyFeasibilityDesign &ConstructionCommissioningOperation & LifeTime ExtensionDecommissioningFigure 1-1 Lifecycle process of an LNG bunkering facility projectThe main topics covered by this RP are as follows:— Development of LNG bunkering facilities (Sec.4)— Risk assessments for LNG bunkering facilities (Sec.4 and Sec.6 and App.D)— Safety management system (SMS) requirements (Sec.5)— Operation of LNG bunkering facilities (Sec.6)— Determination of the quantity and properties of the supplied LNG (Sec.7)Figure 1-2 illustrates the different types of bunkering operations covered by the scope. The bunkeringscenarios directly covered by this RP are: terminal-to-ship, truck-to-ship and ship-to-ship transfers. Thepractices presented may, with special considerations, also be used for other bunkering scenarios, like theuse of portable tanks referred to as “cassette bunkering”. The RP is applicable to vessels covered by theIMO regulations as well as inland shipping.Regarding simultaneous operations on land and sea (e.g. cargo handling, passenger operations, ship trafficclose to the bunkering location, etc.), the RP addresses the risk management requirements and discussesthe methodologies available.Recommended practice, DNVGL-RP-G105 – Edition October 2015DNV GL ASPage 6

LNG supply facilities*’ **LNG bunkering facilitiesSIMULTANEOUS OPERATIONS ON THE WATERSIMULTANEOUS OPERATIONS ON LANDReceiving ship**Terminal-to-ship bunkering1. Shore LNG facilities:a. Onshore permanent installationb. Portable tanksc. TrucksLNGCassette bunkeringTruck-to-ship bunkering2. Waterborne LNG supply facilitiesa. LNG bunker vessel in portb. LNG bunker vessel at seac. LNG offshore storageShip-to-ship bunkering* LNG storage facilities, trailers and containers shall be governed by secific standards or national and/or local laws. If necessary, this RP may defines additional requirements** Supplying and receiving vessels shall be governed by specific standardsFigure 1-2 Scope of this Recommended Practice (DNVGL-RP-G105:2015)The following are excluded from the scope of this RP:— Installations, arrangements and operations on the receiving vessel other than those related to LNGbunkering.— The development of intermediate storage facilities and any activity upstream from intermediate storage,in the value chain.— The recycling or dismantling of an LNG bunkering facility at the end of its lifecycle.Recommended practice, DNVGL-RP-G105 – Edition October 2015DNV GL ASPage 7

SECTION 2 APPLICATION2.1 Use and users of this recommended practiceThis RP applies to all the organizations involved in the LNG bunkering. In general, at least threeorganizations are involved:— The organization supplying the LNG to the receiving vessel (bunker operator).— The organization managing the receiving vessel (ship manager).— The organization providing the regulatory regime (port and/or national authority).The operator of the terminal where the bunkering takes place may also be involved in the LNG bunkering,depending on local conditions. The terminal operator is mainly involved in the integration of the facility'ssafety management systems.2.2 Regulatory requirementsIn the context of this RP, regulatory requirements are defined in or derived from legislative instrumentsrelevant to LNG bunkering operations, such as:— Internationally binding conventions/directives.— Federal/national legislation.— Federal/national/state/regional/local regulations.— Terms and conditions of licences and permits.Regulatory requirements represent the minimum obligations the LNG bunkering operations should meet.The operator of the bunkering facility (in agreement with other stakeholders) may decide to build andoperate to meet higher standards with regard to safety, reliability or environmental protection.In the case of any conflict between regulatory requirements and this RP, the former shall prevail.2.3 Relationship with other specifications, guidelines andstandardsDesign specifications, guidelines and standards covering systems, components, equipment and materialsare referred to in this RP where relevant and documented in Sec.8. The paragraphs below and referencesin this RP provide a collection of the most relevant documents for developing LNG bunkering facilities.ISO/TS 18683, Guidelines for systems and installations for supply of LNG as fuel to ships /1/, is a technicalspecification that provides guidance on the planning, design and operation of LNG bunkering facilities alongwith applicable industry standards for system design to ensure a high level of safety, integrity and reliability.ISO/TS 16901, Guidance on performing risk assessment in the design of onshore LNG installations includingthe ship/shore interface /6/, provides recommendations for risk assessments of the planning, design andoperation of LNG facilities onshore and at the shoreline using risk-based methods and standards.ISO DIS 20519, Ships and marine technology - Vessel - LNG bunkering standard, is a draft standardinitiated by IMO and sets requirements for LNG bunkering systems and equipment that are not covered bythe IGC Code.For determination of calorific value and density of the supplied LNG, references are made to themethodologies provided in ISO 6976:2005 and ISO 6578:1991.The IGC Code, International Code for the Construction and Equipment of Ships Carrying Liquefied Gases inBulk, was adopted by IMO resolution MSC.5(48) and has been mandatory under SOLAS chapter VII since1986-07-01. The code applies to all ships carrying liquefied gases having a vapour pressure exceeding 2.8bar absolute at a temperature of 37.8 C.The IGF Code, International Code of Safety for Ships using Gases or other Low-flashpoint Fuels, is mandatoryfor ships fuelled by gases or other low-flashpoint fuels. It was adopted in June 2015, along with amendmentsto make it mandatory under the International Convention for the Safety of Life at Sea (SOLAS).Recommended practice, DNVGL-RP-G105 – Edition October 2015DNV GL ASPage 8

The SGMF safety guidelines for the bunkering of gas as a marine fuel aim to give the different partiesinvolved a common understanding of the LNG bunkering operations through recommended procedures,checklists and technical and organizational guidance.2.4 AssumptionsThis RP assumes that bunker vessels are designed and built acco

Recommended practice, DNVGL-RP-G105 – Edition October 2015 Page 3 DNV GL AS CHANGES – CURRENT Changes – current General This document supersedes DNVGL-RP-0006, January 2014. Text affected by the main changes in this edition is highlighted in red colour. However, if the changes On 12 September 2013, DNV and GL merged to form DNV GL Group.File Size: 2MBPage Count: 77

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