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Abstract In this study, the optimal operating conditions for the dual mixed refrigerant(DMR) cycle were determined by considering the power efficiency. The DMR cycle consists of compressors, heat exchangers, seawater coolers, valves, phase separators, tees, and common headers, and the operating conditions include the equipment's flow rate, pressure, temperature, and refrigerant composition per flow. First, a mathematical model of the DMR cycle was formulated in this study by referring to the results of a past study that formulated a mathematical model of the single mixed refrigerant(SMR) cycle, which consists of compressors, heat exchangers, seawater coolers, and valves, and by considering as well the tees, phase separators, and common headers. Finally, in this study, the optimal operating conditions from the formulated mathematical model was obtained using a hybrid optimization method that consists of the genetic algorithm(GA) and sequential quadratic programming(SQP). Moreover, the required power at the obtained conditions was decreased by 1.4% compared with the corresponding value from the past relevant study of Venkatarathnam.
Publication Date 2012-02-01
Role Corresponding Author
Category KCI

이준채, 차주환, 노명일, 황지현, 이규열, "LNG FPSO Topside의 액화 공정에 대한이중 혼합 냉매 사이클의 최적 운전 조건 결정", 대한조선학회 논문집, Vol. 49, No. 1, pp. 33-44, 2012.02.01


List of Articles
번호 분류 제목 Publication Date
174 Domestic Journal 노명일, 이규열, "협동 최적화 접근 방법에 의한 다분야 최적 설계에 관한 연구", 한국CAD/CAM학회 논문집, Vol. 5, No. 3, pp.263-275, 2000.09.01 file 2000-09-01
173 International Journal Kyu-Yeul Lee, Myung-Il Roh, "A Hybrid Optimization Method for Multidisciplinary Ship Design", Journal of Ship Technology Research, Vol. 47, No. 4, pp. 181-185, 2000.10.01 file 2000-10-01
172 Domestic Journal 한성남, 이규열, 노명일, "개선된 유전자 알고리즘을 이용한 최적 공간 배치 설계에 관한 연구", 한국CAD/CAM학회 논문집, Vol. 6, No. 3, pp. 174-183, 2001.09.01 file 2001-09-01
171 International Journal Kyu-Yeul Lee, Myung-Il Roh, "An Efficient Genetic Algorithm Using Gradient Information for Ship Structural Design Optimization", Journal of Ship Technology Research, Vol. 48, No. 4, pp. 161-170, 2001.11.01 file 2001-11-01
170 International Journal Kyu-Yeul Lee, Myung-Il Roh, Seonho Cho, "Multidisciplinary Design Optimization of Mechanical Systems Using Collaborative Optimization Approach", International Journal of Vehicle Design, Vol. 25, No. 4, pp. 353-368, 2001.11.01 file 2001-11-01
169 International Journal Kyu-Yeul Lee, Seonho Cho, Myung-Il Roh, "An Efficient Global-Local Hybrid Optimization Method Using Design Sensitivity Analysis", International Journal of Vehicle Design, Vol. 28, No. 4, pp. 300-317, 2002.07.01 file 2002-07-01
168 International Journal Kyu-Yeul Lee, Seong-Nam Han, Myung-Il Roh, "Optimal Compartment Layout Design for a Naval Ship Using an Improved Genetic Algorithm", Marine Technology and SNAME News, Vol. 39, No. 3, pp. 159-169, 2002.07.01 file 2002-07-01
167 Domestic Journal 이원준, 이규열, 노명일, 권오환, "의미론적 제품 데이터 모델 기반 초기 선체 구조 CAD 시스템 개발", 한국CAD/CAM학회 논문집, Vol. 7, No. 3, pp. 157-169, 2002.09.01 file 2002-09-01
166 International Journal Kyu-Yeul Lee, Seong-Nam Han, Myung-Il Roh, "An Improved Genetic Algorithm for Facility Layout Problems Having Inner Structure Walls and Passages", Computers & Operations Research, Vol. 30, No. 1, pp. 117-138, 2003.01.01 file 2003-01-01
165 International Journal Kyu-Yeul Lee, Won-Joon Lee, Myung-Il Roh, "Development of a Semantic Product Modeling System for Initial Hull Structure in Shipbuilding", Robotics and Computer-Integrated Manufacturing Journal, Vol. 20, No. 3, pp. 211-223, 2004.06.01 file 2004-06-01
164 International Journal Kyu-Yeul Lee, Myung-Il Roh, Hyuk-Su Jeong, "An Improved Genetic Algorithm for Multi-Floor Facility Layout Problems Having Inner Structure Walls and Passages", Computers & Operations Research, Vol. 32, No. 4, pp. 879-899, 2005.04.01 file 2005-04-01
163 Domestic Journal 노명일, 이규열, "객체 지향 초기 선체 구조 설계 시스템 개발", 한국CAD/CAM학회 논문집, Vol. 10, No. 4, pp. 244-253, 2005.08.01 file 2005-08-01
162 Domestic Journal 노명일, 이규열, "초기 선체 구조 모델을 기반으로 한 선체 블록의 물량 정보 생성 및 블록 탑재 시뮬레이션", 대한조선학회 논문집, Vol. 43, No. 1, pp. 103-118, 2006.02.01 file 2006-02-01
161 International Journal Myung-Il Roh, Kyu-Yeul Lee, "Development of a 3D CAD System for Modeling Hull Structure at the Initial Ship Design Stage", Ships and Offshore Structures, Vol. 1, No. 2, pp. 135-151, 2006.04.01 file 2006-04-01
160 Domestic Journal 노명일, 이규열, "선체 블록의 물량 정보 생성 및 블록 탑재 시뮬레이션에 관한 연구", 한국CAD/CAM학회 논문집, Vol. 11, No. 2, pp. 115-127, 2006.04.01 file 2006-04-01
159 Domestic Journal 노명일, 유성진, 이규열, "선체 구조 모델의 위상 정보 재구성을 통한 구조 해석 모델 생성", 대한조선학회 논문집, Vol. 43, No. 2, pp. 246-257, 2006.04.01 file 2006-04-01
158 Domestic Journal 노명일, 최우영, 이규열, "선체 구조와의 연관성을 고려한 신속 배관 모델링 방법", 대한조선학회 논문집, Vol. 43, No. 2, pp. 258-267, 2006.04.01 file 2006-04-01
157 Domestic Journal 노명일, 이규열, "초기 설계를 위한 자료 구조 및 모델링 함수 기반의 선체 구조 CAD 시스템 개발", 대한조선학회 논문집, Vol. 43, No. 3, pp. 362-374, 2006.06.01 file 2006-06-01
156 International Journal Myung-Il Roh, Kyu-Yeul Lee, "An Initial Hull Structural Modeling System for Computer-Aided Process Planning in Shipbuilding", Advances In Engineering Software, Vol. 37, No. 7, pp. 457-476, 2006.07.01 file 2006-07-01
155 International Journal Myung-Il Roh, Kyu-Yeul Lee, Seong-Jin Yoo, "An Algorithm for Generating the Hull Structural Analysis Model Using the Seam Information of the Hull Structure at the Initial Design Stage", Journal of Ship and Ocean Technology, Vol. 10, No. 4, pp. 24-33, 2006.12.01 file 2006-12-01
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