화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터)
권호 25권 1호, p.196
발표분야 공정시스템(Process Systems Engineering)
제목 Study on dynamic characteristics of small-scale BOG (Boil-off gas) re-liquefaction process
초록 Utilization of LNG (Liquefied natural gas) as a fuel to ship is environment-friendly as its exhaust gas contains less SOx and NOx than conventional fuel. In the LNG-fueled ship, re-liquefaction and re-use of vaporized LNG in the fuel storage tank can enhance safety as well as profitability. Reverse Brayton cycle is widely applied for small-scale shipping, due to its low possibility of explosion in offshore environments.  
In this study, dynamic model is developed, and control logic is proposed to ensure robust liquefaction of BOG. Several control logics are proposed, while controllability and effectiveness of each option are assessed in a systematic manner. Operation procedures for startup and shutdown is designed for achieving improved applicability of control logic and better process safety. The methodology established in this study can systematically analyze the system-wide dynamic characteristics of BOG re-liquefaction process.  
Acknowledgement: This work was supported by the World Class 300 Project(R&D)(No. S2305678) of the SMBA (Korea).
저자 손현수1, 윤상득2, 박승하2, 김진국1
소속 1한양대, 2동화엔텍
키워드 공정모델링; 공정제어
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