Natural gas is one of the fuels what produce low levels of NOx and less CO₂. It is a colorless mixture of several gases, and when the temperature drops below -196℃ at atmospheric pressure, methane vapor becomes a liquid what is called Liquid natur...
Natural gas is one of the fuels what produce low levels of NOx and less CO₂. It is a colorless mixture of several gases, and when the temperature drops below -196℃ at atmospheric pressure, methane vapor becomes a liquid what is called Liquid natural gas. Since liquid natural gas is cryogenic liquid, it is likely to lead to a big accident if leaked. Therefore, emergency shut-down valve should be installed to cope with emergency situations. In this study, the numerical modeling of the LNG bunkering ESD valve, which is the emergency shut-down valve, was carried out and the dynamic characteristic were verified. Also, a sliding mode control has been applied to provide remote control in an emergency.