Design and Cost Multi-Objective Optimization of Small-Scale LNG Carriers using the Value Engineering Approach

Lathif Prasetyo Wibisana, Muhammad Arif Budiyanto

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Nowadays, liquefied natural gas (LNG) carriers are the main merchant fleets for the transport of natural gas for energy. The large LNG carrier has a more efficient freight cost (approximately 7.8 USD/MMBTU) than a small-scale LNG carrier (SSLNGC; approx. 12,8 USD/MMBTU). Another method must be introduced to make SSLNGCs more cost-efficient. As such, this work conducted an experiment to improve the design of SSLNGCs via design and cost optimization by combining a value engineering approach and multi-objective optimization to decrease hull resistance and lower construction material costs by adjusting the ship dimension ratio. By improving the conceptual design and using semi-integrated numerical simulations, the final result showed improvements in SSLNGCs by decreasing the hull shell area by 1.57% to reduce the construction material needed and total ship resistance by 8.3%

Original languageEnglish
Pages (from-to)1288-1301
Number of pages14
JournalInternational Journal of Technology
Volume12
Issue number6
DOIs
Publication statusPublished - 2021

Keywords

  • Hull resistance
  • Hull surface area
  • Multi-objective optimization
  • Small-scale lng carrier
  • Value engineering

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