Performance analysis of combined cycle with air breathing derivative gas turbine, heat recovery steam generator, and steam turbine as LNG tanker main engine propulsion system

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Abstract

This study explains the performance analysis of a propulsion system engine of an LNG tanker using a combined cycle whose components are gas turbine, steam turbine, and heat recovery steam generator. The researches are to determine the total resistance of an LNG tanker with a capacity of 125,000 m3 by using the Maxsurf Resistance 20 software, as well as to design the propulsion system to meet the required power from the resistance by using the Cycle-Tempo 5.0 software. The simulation results indicate a maximum power of the system of about 28,122.23 kW with a fuel consumption of about 1.173 kg/s and a system efficiency of about 48.49% in fully loaded conditions. The ship speed can reach up to 20.67 knots.

Original languageEnglish
Article number0726
JournalJournal of Marine Science and Engineering
Volume8
Issue number9
DOIs
Publication statusPublished - Sep 2020

Keywords

  • Combined cycle
  • LNG tanker
  • Propulsion main engine

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