액체수소 탱크 내 유동해석 및 물리모델 구현에 관한 연구

Abstract

In this study, a physical model was implemented for the multilayer insulation layer including vacuum for the outside of the steel for the phase change flow analysis in the liquid hydrogen tank, and the inside was analyzed using a phase change model. Since the multilayer insulation layer is very affected by radiation heat transfer due to the difference between -253 degrees and the ambient temperature, it is important to maintain a high vacuum degree, so it is necessary to configure an insulation layer that can block radiation heat transfer. In addition, evaporation gas is generated inside due to the heat transferred to the inside. In particular, liquid hydrogen transported by ships is a very important part from the design perspective because the amount of BOG generated during the transportation time is very important and the thickness of the insulation layer is limited to reduce the transportation cost of the ship. The phase change flow analysis program developed in this study will be used as basic data for the design of storage facilities for ships in the future.