Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference
Shanghai, China, June 5–10, 2022
Copyright © 2022 by the International Society of Offshore and Polar Engineers (ISOPE)
ISBN 978-1-880653-81-4; ISSN 1098-6189

www.isope.org

Research on LNG bunkering mooring system design of dual fuel large vessel
Ding Zhang,Yang Guang Xu,Xu Dong Wu
Marine Design & Research Institute of China.
Shanghai , China
process of transferring LNG from the bunker station into the LNG
storage tank of the ship, and it is the first step for LNG usage on dual

ABSTRACT

fuel vessels. LNG bunkering for vessels mainly includes the following

Three traditional bunkering, i.e. tank car bunkering, shore station

three scenarios (Xu, Fan and Wu et al.,2015): tank car bunkering, shore

bunkering and bunker vessel bunkering are presented and investigated.

station bunkering and bunker vessel bunkering. Given that tank car

Among three scenarios, bunker vessel is the best way to bunker in terms

bunkering does not require many supporting measures, it becomes oneof flexibility and bunkering capacity. The mooring system is one of theof the commonly used bunkering methods at present. For example, it

key technologies for bunker vessel bunkering to the dual fuel large

has been widely used in northern Europe. The shore station bunkering

vessel. The key points of side by side bunkering mooring system design

method has been applied in both northern Europe and China. Since theare introduced, including mooring equipment, mooring arrangement,

world's first LNG bunker vessel was put into operation in early 2013,

mooring calculation, etc. The calculation of side by side bunkering

more and more LNG bunker vessels have been put into use or are undermooring system in the docking is conducted. It shows that HMPE ropesconstruction. Their bunkering positions have great flexibility and can beshould be preferred for the bunker vessel.Additionally, the mooring

operated at the docking or at sea. Therefore, LNG bunkering mooring

design scheme of mooring line in combination with fender is capable ofsystem is one of the key technologies in the bunkering design of dual

meeting the limited operation environmental conditions specified byfuel large vessel. To date, relevant research on the bunkering system ofOCIMF. These findings are helpful for the bunkering mooring systemdual fuel large vessel is mostly limited to the pipeline design(Kuai,Jing

design of dual fuel ships.

and Li et al.,2018), implying that the research on the key mooring
system is rarely reported.

KEY WORDS:dual fuel large vessel;bunker vessel;bunkering mooring

In this paper, the characteristics of three main LNG bunkering methods

system; mooring calculation.

are introduced. The key points for the design of side by side bunkeringmooring system are presented. In order to introduce the verification

INTRODUCTION

method of side by side bunkering mooring system, combination of a
260K dual fuel VLOC (very large ore carrier)and 5500m3 LNG bunker

In order to meet the increasingly strict emission requirements of thevessel is taken as an example for calculation.The basic principle ofInternational Maritime Organization (IMO), one of the options is to use

mooring calculation and analysis are presented. These findings areLNG as fuel. At present, there are some large vessels that use LNG as

promising to provide a basis for issuing a guideline for the design andmain fuel and arrange LNG storage tanks on board. Bunkering is thecalculation of side by side bunkering mooring of other dual fuel ships.

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