Design and optimization of a pure refrigerant cycle for natural gas liquefaction with subcooling

Inkyu Lee, Kyungjae Tak, Hweeung Kwon, Junghwan Kim, Daeho Ko, Il Moon

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Natural gas liquefaction is an energy-intensive process in which energy reduction is a main concern. This research focused on minimizing the energy of the pure refrigeration cycle in natural gas liquefaction by improving the subcooling system. To minimize energy consumption, a pure refrigeration cycle with a subcooling system was simulated, and the result was thermodynamically analyzed. The thermodynamic analysis identified an opportunity to reduce the energy consumption, and a new design was proposed for the subcooling system. In addition, the proposed design was deterministically optimized to find the optimal compressing ratio, temperature, pressure, and flow rate. As the result, the optimal operating conditions were determined, and the energy consumption was reduced by 17.74%.

Original languageEnglish
Pages (from-to)10397-10403
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Volume53
Issue number25
DOIs
Publication statusPublished - 2014 Jun 25

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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