CFDによるLNGタンクの異種LNG混合受入シミュレーション : 更なる安全性向上をめざして(<論文特集>安全安心シミュレーション)

概要

論文の詳細を見る
When a storage tank containing LNG (Liquefied Natural Gas) is further filled with different-density LNG, stratification may occur. It occasionally results in rollover accompanied by a sudden release of large amounts of BOG (Boil off Gas), which causes rapid tank-pressure rise and sometimes damage to the tank. In this paper, we study on tank filling procedures with different-density LNG by using CFD (Computational Fluid Dynamics) simulation, in order to improve safety and reduce LNG storage costs. The calculated results of a developed numerical model agreed well with the measured data. A case study on the filling of a small tank indicates that the initial density difference, the initial LNG depth and the filling rate affect the density difference at the end of the filling that will closely be related to stratification.
日本シミュレーション学会の論文
2007-12-15