饱和水蒸汽与饱和水的新简明状态方程

THE NEW CONCISE EQUATIONS ON STATE FOR SATURATED WATER AND STEAM

饱和水蒸汽与饱和水的新简明状态方程李斯特，马润梅（北京化工大学机械工程系北京１０００２９）关键词饱和状态，极性分子，分子作用势函数１引言针对以水为工质的极性分子作用力关系所求得的当量Ｌ─Ｊ（６－１）分子作用势函数及其液态下分子自由体积模型，分别导得一...

By using an equivalent intermolecular potential function, LJ(6-12), for polar substance Vapor and an intermolecular free volume model for liquid respectively, a new cubic reduced vinal equation of state for saturated steam and a new density equation for saturated water have been proposed in this paper. Coupled with these equations, a new simple vapor pressure of water is also proposed. Results computed from these new procedures agree well with experimental and literatured data. It is shown that the new proposed equations are not only simple ill form and convenient to practice, especially for numerical analysis, but also adaptable to wide engineering application with high accuracy.