Sequential coordinate random search for optimal operation of LNG (liquefied natural gas) plant

Title
Sequential coordinate random search for optimal operation of LNG (liquefied natural gas) plant
Author(s)
이문용칸모드샤리크I.A. Karimi[I.A. Karimi]Alireza Bahadori[Alireza Bahadori]
Keywords
MIXED REFRIGERANT PROCESSES; COLD ENERGY RECOVERY; RANKINE-CYCLE; POWER CYCLE; THERMODYNAMIC ANALYSIS; DESIGN OPTIMIZATION; PROCESS KNOWLEDGE; LIQUEFACTION; EXERGY; SINGLE
Issue Date
201509
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ENERGY, v.89, pp.757 - 767
Abstract
This study exploits the sequential coordinate randomization search method for optimizing LNG (liquefied natural gas) process plants. The coordinate search is based on the idea of minimizing the multivariable function considering one variable at a time. The random element is incorporated in the coordinated search for an exhaustive exploration of decision variable space. A simple implementation with few operating parameters makes the proposed approach suitable for the optimization of highly non-linear LNG process plants. The efficacy of the proposed methodology was tested on the well-known SMR (single mixed refrigerant) and propane pre-cooled mixed refrigerant (C3MR) process of NG liquefaction. The main decision variables in SMR and C3MR process plants were identified and optimized in terms of the compression energy. The results were compared with the heuristic results, which revealed the superiority, simplicity and suitability of the proposed sequential coordinate random search algorithm for LNG process plants. (C) 2015 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/31110http://dx.doi.org/10.1016/j.energy.2015.06.021
ISSN
0360-5442
Appears in Collections:
공과대학 > 화학공학부 > Articles
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