Earticle

초록

영어

This paper presents the design of a re-liquefaction system as a BOG (boil-off gas) handling process in liquid hydrogen transport vessels. The total capacity of the re-liquefaction system was assumed to be 3 ton/day, with a BOR (boil-off rate) of 0.2 %/day inside the cargo. The re-liquefaction cycle was devised using the He-Brayton Cycle, incorporating considerations of BOG capacity and operational stability. The primary components of the system, such as compressors, expanders, and heat exchangers, were selected to meet domestically available specifications. Case studies were conducted based on the specifications of the components to determine the optimal design parameters for the re-liquefaction system. This encompassed variables such as helium mass flow rate, the number of compressors, compressor inlet pressure and compression ratio, as well as the quantity and composition of expanders. Additionally, an analysis of exergy destruction and exergy efficiency was carried out for the components within the system. Remarkably, while previous design studies of BOG re-liquefaction systems for liquid hydrogen vessels were confined to theoretical and analytical realms, this research distinguishes itself by accounting for practical implementation through equipment and system design.

목차

Abstract
1. 연구 배경
2. 액체수소 운송선박 BOG 재액화 시스템
2.1. 선박 제원 및 재액화 용량 선정
2.2. 재액화 사이클 공정 설계
2.3. 재액화 시스템 핵심 기자재 사양
3. 재액화 시스템 공정 설계를 위한 Case Study
3.1. 헬륨 질량 유량의 변화
3.2. 압축기 입구 압력 및 압력비 변화
3.3. 팽창기 출력 및 구성 변화
4. 재액화 시스템 기자재 엑서지 분석
5. 맺음말
ACKNOWLEDGMENT
REFERENCES

키워드

저자

• Byeongchang Byeon [ LNG and Cryogenic Technology Center, Korea Institute of Machinery & Materials, Kimhae, Korea ]
• Hwalong You [ Department of Energy Plant Technology, Korea Institute of Machinery & Materials, Daejeon, Korea ]
• Dongmin Kim [ LNG and Cryogenic Technology Center, Korea Institute of Machinery & Materials, Kimhae, Korea ]
• Keun Tae Lee [ LNG and Cryogenic Technology Center, Korea Institute of Machinery & Materials, Kimhae, Korea ] Corresponding Author
• Mo Se Kim [ LNG and Cryogenic Technology Center, Korea Institute of Machinery & Materials, Kimhae, Korea ]
• Gi Dock Kim [ LNG and Cryogenic Technology Center, Korea Institute of Machinery & Materials, Kimhae, Korea ]
• Jung Hun Kim [ LNG and Cryogenic Technology Center, Korea Institute of Machinery & Materials, Kimhae, Korea ]
• Sang Yoon Lee [ LNG and Cryogenic Technology Center, Korea Institute of Machinery & Materials, Kimhae, Korea ]
• Deuk Yong Koh [ LNG and Cryogenic Technology Center, Korea Institute of Machinery & Materials, Kimhae, Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]

• 간기

  계간

• pISSN

  1229-3008

• eISSN

  2287-6251

• 수록기간

  1999~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 427 DDC 537