LNG Bunkering Guidelines (IACS Rec 142)

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Published Date

November 2017


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LNG Bunkering Guidelines (IACS Rec 142)

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These guidelines provide recommendations for the responsibilities, procedures and equipment required for LNG bunkering operations and sets harmonised minimum baseline recommendations for bunkering risk assessment, equipment and operations.

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The purpose of these guidelines is mainly to define and cover the additional risks associated with bunkering LNG and to propose a methodology to deal with those additional risks in order to provide a similar level of safety as is achieved for traditional oil fuel bunkering operations. This document is designed to complement the requirements from the existing applicable guidelines and regulations, such as port and terminal checklists, operator’s procedures, industry guidelines and local regulations. This guide provides guidance to clarify the gaps that have been identified in the existing guidance and regulations. In particular, the following items are covered:

• The responsibility of different parties involved in the LNG transfer,

• The LNG bunkering process,

• SIMOPS

• Safety distances,

• QRA and HAZID.

Contents

CHAPTER 1 General

Section 1 – Application

1.1 Introduction

1.2 Purpose

1.3 LNG bunkering process and guideline structure

1.4 Applicability

1.5 LNG Bunker Management Plan (LNGBMP)

Section 2 – Definitions, Applicable Standards and Rules

2.1 Terms and definitions

2.2 Standards and rules

Section 3 – Bunkering Methods

3.1 Description of typical ship bunkering arrangements

3.2 Examples of ship bunkering arrangements

Section 4 – Responsibilities During LNG Bunkering

4.1 Responsibilities during planning stage

4.2 Responsibilities during bunkering operations

4.3 Crew and personnel training and LNG awareness

Section 5 – Technical Requirements for Bunkering Systems

5.1 General

5.2 Loading arms and hoses arrangements

5.3 Couplings and connecting flanges

5.4 Leakage detection

5.5 ESD systems

5.6 Emergency Release Coupling (ERC)

5.7 Communication systems

5.8 Bunkering transfer rate

5.9 Vapour return line

5.10 Lighting

CHAPTER 2 Risk Assessment

Section 1 – LNG Bunkering Operations Risk Assessment

1.1 General

1.2 Risk assessment approach

1.3 Risk criteria

1.4 Guidance on a typical risk assessment for LNG bunkering operations

Section 2 – Safety and Security Zones

2.1 General

2.2 Hazardous area classification

2.3 Safety zones

2.4 Security zones

CHAPTER 3 Functional and General Requirements for LNG Bunkering Operation

Section 1 – Pre-bunkering Phase

1.1 Definition

1.2 Goal

1.3 Functional requirements

1.4 General requirements

1.5 Preparation for bunker transfer

1.6 Pre-bunkering checklist

1.7 Connection of the transfer system

Section 2 – Bunkering Phase

2.1 Definition

2.2 Goal

2.3 Functional requirements

2.4 General requirements

Section 3 – Bunkering Completion Phase

3.1 Definition

3.2 Goal

3.3 Functional requirements

3.4 Draining, purging and inerting sequence 108

3.5 Post-bunkering documentation 110

Annex: Guidance on HAZID and HAZOP for LNG Bunkering

Operations

Section 1 – HAZID for LNG Bunkering

1.1 Objectives

1.2 Scope

1.3 Process

1.4 Technique

1.5 Guidewords

Section 2 – HAZOP for LNG Bunkering Operations

2.1 Definition

2.2 Process

2.3 Scope

Title: LNG Bunkering Guidelines (IACS Rec 142)
Number of Pages: 125
Product Code: WS1558K
ISBN: ISBN 13: 978-1-85609-754-3 (9781856097543), ISBN 10: 1-85609-754-4 (1856097544)
Published Date: November 2017
Weight: 0.40 kg

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