수소충전소의 안전성 평가 연구

Due to the rapid spread and low minimum ignition energy of hydro-gen, rupture is highly likely to cause fire, explosion and major accidents. The self-ignition of high-pressure hydrogen is highly likely to ignite immediately when it leaks from an open space, resulting in jet fire. Results of the diffusion and leak-age simulation show that jet effect occurs from the leakage source to a certain distance. And at the end of location, the vapor cloud explosion can be occurred due to the formation of hydrogen vapor clouds by built-up. In the result, it is im-portant that depending on the time of ignition, a jet fire or a vapor cloud ex-plosion may occur. Therefore, it is necessary to take into account jet effect by lo-cation of leakage source and establish a damage minimizing plan for the possi-ble jet fire or vapor cloud explosion. And it is required to any kind of measure-ments such as an interlock system to prevent hydrogen leakage or minimize the amount of leakage when detecting leakage of gas.