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Research Papers: Structures and Safety Reliability

Layout Optimization of a Floating Liquefied Natural Gas Facility Using Inherent Safety Principles

[+] Author and Article Information
Peiwei Xin

Centre for Risk,
Integrity and Safety Engineering (C-RISE),
Faculty of Engineering and Applied Science,
Memorial University,
St. John's, NL A1B 3X5, Canada
e-mail: px4400@mun.ca

Faisal Khan

Centre for Risk,
Integrity and Safety Engineering (C-RISE),
Faculty of Engineering and Applied Science,
Memorial University,
St. John's, NL A1B 3X5, Canada
e-mail: fikhan@mun.ca

Salim Ahmed

Centre for Risk,
Integrity and Safety Engineering (C-RISE),
Faculty of Engineering and Applied Science,
Memorial University,
St. John's, NL A1B 3X5, Canada
e-mail: sahmed@mun.ca

1Corresponding author.

Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received June 18, 2015; final manuscript received March 11, 2016; published online June 2, 2016. Assoc. Editor: Lizhong Wang.

J. Offshore Mech. Arct. Eng 138(4), 041602 (Jun 02, 2016) (8 pages) Paper No: OMAE-15-1050; doi: 10.1115/1.4033076 History: Received June 18, 2015; Revised March 11, 2016

This paper presents a layout optimization methodology for the topside deck of a floating liquefied natural gas facility (FLNG) using inherent safety principles. Natural gas is emerging as a clean energy, and a large amount of natural gas exists in the proven offshore area, thus making it an energy source with huge potential in today's and the future market. FLNG facilities tap natural gas from an offshore well by floating, compressing it into liquefied natural gas (LNG), and offloading it to LNG carriers after temporary storage. In addition, FLNG facilities enable long-distance as well as multilocation transportation. The FLNG facility requires compact design due to limited space and high construction costs and thus faces a more challenging situation where the design has to concurrently guarantee economic profits and a safe operational environment. Therefore, the layout of the topside deck, which includes production, storage, and other functions, plays a paramount role in designing an FLNG facility. This paper optimizes the layout of an FLNG topside deck by implementing inherent safety principles. The objective is to design a topside deck layout which achieves the largest extent of inherent safety with optimal costs. The details of the principles and their application for layout optimization are also provided.

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References

Figures

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Fig. 1

FLNG layout optimization framework

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Fig. 2

DMR liquefaction process on the FLNG facility

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Fig. 3

Plan view of MR module

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Fig. 4

Isometric view of the MR module

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Fig. 5

Three layouts for FLNG topside deck

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Fig. 6

Framework of layout evaluation

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