액체수소 저장 탱크의 중력 방향 및 수소 충전율이 BOG에 미치는 영향에 관한 수치적 연구

• Published in: 한국수소 및 신에너지학회 논문집 Vol. 34; no. 4; pp. 342 - 349
• Main Authors: 서영민(YOUNG MIN SEO), 노현우(HYUN WOO NOH), 하동우(DONG WOO HA), 구태형(TAE HYUNG KOO), 고락길(ROCK KIL KO)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 2023
• Subjects: Liquid hydrogen(액체수소); Gravity direction(중력 방향); Numerical simulation(수치해석); Hydrogen filling rate(수소 충전율); Multi-phase flow(다상유동)
• ISSN: 1738-7264; 2288-7407
• DOI: 10.7316/JHNE.2023.34.4.342

In this study, a numerical simulations were conducted to analyze the phase change behavior of a liquid hydrogen storage container. The effects of gravity direction and hydrogen filling rate on boil-off gas (BOG) in the storage container were investigated. The study employed the volume of fluid, which is the phase change analysis model provided by ANSYS Fluent (ANSYS, Canonsburg, PA, USA), to investigate the sloshing phenomenon inside the liquefied hydrogen fuel tank. Considering the transient analysis time, two-dimensional simulation were carried out to examine the characteristics of the flow and thermal fields. The results indicated that the thermal flow characteristics and BOG phenomena inside the two-dimensional liquefied hydrogen storage container were significantly influenced by changes in gravity direction and hydrogen filling rate.