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논문 기본 정보

자료유형
학술저널
저자정보
Bo Rim Ryu (Korea Maritime & Ocean University) Duong Phan Anh (Korea Maritime & Ocean University) Yoon Hyeok Lee (DongHwa Entec) Ho Keun Kang (Korea Maritime & Ocean University)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제45권 제2호
발행연도
2021.4
수록면
70 - 78 (9page)
DOI
10.5916/jamet.2021.45.2.70

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초록· 키워드

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This study simulated the conversion of the existing aged refrigerated cargo carriers into liquefied natural gas (LNG)-fueled ships to comply with the International Maritime Organization emission regulations. A useful method for the recovery of LNG cold energy, which is generated from the process of LNG vaporization and causes ecosystem disturbances owing to its low temperature when released into the sea, is presented in the study. The proposed method consists of two systems. One is an indirect refrigeration system with ethyl alcohol for the preservation of tuna as brine refrigerant instead of a multi-press refrigeration system with R22, and the other is a power generation system using the organic Rankine cycle (ORC). Considering a refrigeration cargo hold that consumes 256 kW of power for its operation, the refrigeration system based on LNG cold energy consumes approximately 7 kW of power for its operation; thus, it can save approximately 198 kW of power when compared with the power consumed by a conventional refrigeration system. Additionally, the ORC power generation system based on LNG cold energy can produce up to 17 kW of power using R134b under optimal conditions. This power saving of 215 kW represents a cost-effective and environmentally friendly way to save fuel and environmental costs because it can reduce diesel generator operating times.

목차

Abstract
1. Introduction
2. System Modeling and Simulation
3. Results and Discussions
4. Conclusion
References

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