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Optimization study of BOG re-liquefaction process for ammonia fueled ship

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초록

This study presents a study on the optimization of the boil-off gas (BOG) re-liquefaction system for ammonia fueled ship using a program developed with HYSYS and Python. The main objective of the research is to improve the energy efficiency of the process system. The process system was modeled using HYSYS, and an optimization program was implemented through integration with Python. Therefore, an optimization tool was developed using genetic algorithms and the penalty function method. Variables for optimization included the discharge pressures of each compressor stage and the side stream flow rate. The optimization aimed to maximize the coefficient of performance (COP) as the objective function. The results showed that the initial COP of 1.714 improved to 1.923, representing an approximate 12% enhancement. This study provides significant findings that contribute to the efficient operation of re-liquefaction systems for ammonia fueled ship.

Abstract

This study presents a study on the optimization of the boil-off gas (BOG) re-liquefaction system for ammonia fueled ship using a program developed with HYSYS and Python. The main objective of the research is to improve the energy efficiency of the process system. The process system was modeled using HYSYS, and an optimization program was implemented through integration with Python. Therefore, an optimization tool was developed using genetic algorithms and the penalty function method. Variables for optimization included the discharge pressures of each compressor stage and the side stream flow rate. The optimization aimed to maximize the coefficient of performance (COP) as the objective function. The results showed that the initial COP of 1.714 improved to 1.923, representing an approximate 12% enhancement. This study provides significant findings that contribute to the efficient operation of re-liquefaction systems for ammonia fueled ship.

참고문헌 (24)

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