摘要
由于液化天然气(LNG)所具有的低温特性,其在储运中必然会发生相态的变化。目前,对于天然气相平衡的计算大多应用状态方程法,采用P-R方程和SRK方程进行计算。本文采用了LKP方程进行了气液相平衡的计算,通过与实验值的对比表明:应用LKP状态方程用于天然气及混合制冷剂的相平衡计算具有较好的精度,能够满足进一步天然气热物性计算的要求。
：LNG（ Liquefied Natural Gas）can transform phases during storage and transportation because of low- temperature characteristics, Nowadays, the method of state equation is adopted widely to calculate natural gas phase equilibrium. The state equations are usually P -R and SRK state equations. In this article, LKP state equation was selected to calculate the phase equilibrium of natural gas. The results contrasted with experiment indieated：LKP state equation has accurate results in calculating natural gas and mixture refrigerants which can be used to further calculate thermo - physical properties of natural gas.
出处
《节能技术》
CAS
2011年第6期502-505,共4页
Energy Conservation Technology
基金
辽宁省教育厅重点实验室项目(LS2010097)
关键词
天然气(NG)
液化流程
相平衡计算
LKP状态方程
P-R方程
naturalgas
liquefied process flow
calculation of phase equilibrium
LKP state equation
P - R state equation
