液化天然气低温贮存分层研究

建立液化天然气低温贮存分层几何模型,数学模型,获得距液面不同高度下温度计算解析解,结合给定储罐及所处环境参数,定量计算随时间变化储罐内温度。绘制温度变化曲线,计算储液达到饱和状态所耗时间,总结温度分布规律,该规律和已有大量文献研究结论吻合。

Study on Cryogenic Storage and Stratification of Liquefied Natural Gas

T his paper establishes the stratification geometry and mathematical model ,and obtains the for-mula w hich calculates the temperature distribution of the liquid phase in the vessel .With the given param-eters of the vessel and the environment ,it procures the specific temperature at specific height in the vessel after a specific period of time .The paper then draws the temperature curve ,calculates the time which the LNG spends to saturate ,and concludes the law of temperature distribution ,which is consistent with study results of the existing research .