Multi-floor Layout for the Liquefaction Process Systems of LNG FPSO Using the Optimization Technique

• DOI: 10.3744/snak.2012.49.1.68
• Publication Date: 2012-04-23T00:40:41Z
• Authors: Nam-Kug Ku; Joon-Chae Lee; Myung-Il Roh; Ji-Hyun Hwang; Kyu-Yeul Lee
• Keywords: Sequential quadratic programming

A layout of an LNG FPSO should be elaborately determined as compared with that onshore plant because many topside process systems are installed on the limited area; deck FPSO. Especially, made multi-deck, not single-deck and have a minimum area. In this study, multi-floor for liquefaction process, dual mixed refrigerant(DMR) cycle, was by using optimization technique. For this, problem mathematically formulated. The consists 589 design variables representing positions systems, 125 equality constraints 2,315 inequality limitations them, objective function total cost. To solve problem, hybrid method genetic algorithm(GA) sequential quadratic programming(SQP) used in study. As result, we can obtain which satisfies all related to layout.