CAJ | 학술논문

天然气在现代生活中应用越来越广泛,为了在紧急情况下能够正常供应液化天然气,我国的部分城市已建造了大型液化天然气储罐.由于液化天然气易燃易爆性,模拟其发生火灾爆炸的可能性具有重大的借鉴作用.本文运用挪威DNV公司研制的PHAST软件输入发生事故时的真实场景,包括设备类型,物质种类,存储参数,泄漏方式,周围环境(大气温度、湿度、稳定度、风速)等设置,模拟液化天然气储罐发生不同的泄漏事故,绘出能够真实描述事故危害的计算机图表、报告等评价结果.运用PHAST.软件模拟得出不同的孔径,不同的风速,不同大气稳定度的条件下,泄漏扩散浓度定量分析的结果,通过下风向距离,云团宽度来描写火灾爆炸区域,为提高我国液化天然气的安全管理水平,降低事故风险提供依据.
천연기재현대생활중응용월래월엄범,위료재긴급정황하능구정상공응액화천연기,아국적부분성시이건조료대형액화천연기저관.유우액화천연기역연역폭성,모의기발생화재폭작적가능성구유중대적차감작용.본문운용나위DNV공사연제적PHAST연건수입발생사고시적진실장경,포괄설비류형,물질충류,존저삼수,설루방식,주위배경(대기온도、습도、은정도、풍속)등설치,모의액화천연기저관발생불동적설루사고,회출능구진실묘술사고위해적계산궤도표、보고등평개결과.운용PHAST.연건모의득출불동적공경,불동적풍속,불동대기은정도적조건하,설루확산농도정량분석적결과,통과하풍향거리,운단관도래묘사화재폭작구역,위제고아국액화천연기적안전관리수평,강저사고풍험제공의거.
Natural gas is widely used in daily life now,in order to supply liquefied natural gas(LNG)even in the emergency situation,large LNG tanks have been built in some cities of china.As LNG is easily to get flamed and exploded,simulating the possibihty of ac-cident plays a significant role.PHAST Was used in the paper,which is developed by DNV in Norway,to analyze the leak accident ofLNG storage quantificationally,which caused in different diameter of holes and environment.According to the result which describedby the downwind distance and cloud width,fire and explosion area can get,and the result for helping to make emergency measurementsin the accident is provided.