인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Ammonia is increasingly recognized as an effective hydrogen carrier, leading the South Korean government to plan the construction of a large-scale ammonia bunkering terminal at Dangjin Port by 2030. However, due to its toxic and flammable nature, ammonia poses significant safety risks when stored and handled in large quantities, necessitating a precise quantitative risk assessment. This study examines a scenario in which ammonia is released through a pressure safety valve (PSV) due to overpressure caused by a refrigeration system failure in a 40,000-ton storage tank. The dispersion behavior of ammonia was quantitatively analyzed at four concentration levels odor threshold (1 ppm), ERPG-1 (25 ppm), ERPG-2 (150 ppm), and ERPG-3 (1500 ppm) using the BARAM 25.1.0 CFD program based on OpenFOAM. The simulation results showed that during the initial release, ammonia primarily dispersed horizontally and upward under the influence of wind and buoyancy. At the odor threshold level, the gas gradually descended toward the ground over time, whereas at higher ERPG concentrations, it dissipated rapidly and did not reach ground level. These findings suggest that long-term exposure to low concentrations may pose greater health risks to nearby residents than short-term exposure to high concentrations. This study is expected to serve as a valuable reference not only for safety management and emergency evacuation planning at ammonia storage facilities, but also for understanding the quantitative dispersion behavior of ammonia at different concentration levels.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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