Guidelines for the Alleviation of Excessive Surge Pressures on ESD for Liquefied Gas Transfer Systems

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Overview

These guidelines will assist the operating management of terminals and liquefied gas carriers in reviewing the design, engineering and operating procedures of cargo transfer systems. The information provided will enable users to:

 

• Recognise the potential hazards of surge pressure

• Understand the factors that affect or create surge pressures

• Avoid the generation of excessive surge pressures and momentum change

• Review the engineering and operating procedures of the cargo transfer system

• Understand aspects of surge pressure control on the other side of the ship/shore interface to enable mutual understanding of safe transfer procedures

• Understand the potential benefits of a linked ship/shore ESD system in mitigating surge pressures.

Content

References

Abbreviations

Glossary of Terms

Table of Figures

1. Introduction and Scope

2. Surge

2.1 What is Surge?

2.2 Liquefied Gas Cargo Transfer Systems

2.3 Secondary Surges

2.4 Line Pack Effect

3. Surge Hazards and Risk Management

3.1 Hazards and Risk Management

3.2 Risk Assessment

3.3 Bowtie

3.4 Bowtie Hazards

3.5 Causal Factors

3.6 Barriers

3.7 Surge Bowtie

4. Recommendations and Guidelines

4.1 Principal Design Recommendations

4.2 Principal Operational Recommendations

Annexes

Surge Technical Background

Surge Pressures in a Typical Loading System

Surge Pressures in a Typical Unloading System

Valves

Design Approach to Alleviate Surge Pressures

Surge Pressure Relief

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Details

Title: Guidelines for the Alleviation of Excessive Surge Pressures on ESD for Liquefied Gas Transfer Systems
Edition: 2nd Ed 2018
Number of Pages: 66
Product Code: WS1567K
ISBN: ISBN 13: 978-1-85609-767-3 (9781856097673), ISBN 10: 1-85609-767-6 (1856097676)
Published Date: July 2018
Binding Format: Hardback
Book Height: 297 mm
Book Width: 210 mm
Book Spine: 10 mm
Weight: 0.80 kg
Author: SIGTTO