The Mooring Pattern Study for Q Flex Type LNG Carriers Scheduled for Berthing at Ege Gaz Aliaga LNG Terminal

Nas S., Zorba Y., Uçan E.

TransNav, vol.8, no.4, pp.543-548, 2014 (ESCI)

  • Publication Type: Article / Article
  • Volume: 8 Issue: 4
  • Publication Date: 2014
  • Doi Number: 10.12716/1001.08.04.08
  • Journal Name: TransNav
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus
  • Page Numbers: pp.543-548
  • Dokuz Eylül University Affiliated: Yes


Ever growing energy industry requires larger quantities of LNG to be transported by bigger ships between terminals. Every day, new kind of large vessels created by new technologies, and these are used to trade around the globe. This is the dynamic change in shipping industry. But on the other hand these new vessels need to safely berth to existing terminals which we may accept as more static part of the trade. Thus this study born by the request of Ege Gaz Aliaga LNG Terminal management to determine if it is safe to berth to the terminal by a new breed of large LNG carrier type named as Q-Flex and Q-Max. Transas Bridge Simulator NTPRO 5000 series was used in this study for extensive experiments which had been simulated by the use of hook function. During the study, every force applied to mooring hooks and dolphins by the ship lines were divided into 3 dimensions and then measured by simulation experiments. With analysis of the data, required hook and dolphins strengths were determined for the safe mooring arrangements. Upon the completion of the study Ege Gaz Aliaga LNG Terminal became the first safe berth for Q-Flex type vessels in the Mediterranean and the Black Sea. And finally all experiments were confirmed with real life experience when the first Q-Flex type LNG carrier berthed to the Ege Gaz Aliaga LNG Terminal.