车用涡旋空调压缩机含油量优化

讨论了车用空调压缩机介质含油量各种热力参数的计算方法,分析了含油量对压缩机性能的影响,运用优化的方法得出了不同工况下介质含油的最佳值,为车用空调压缩机安全经济的运行提供了一个含油量的科学选择方法。

One-Parameter Equation of State for Gases and Gas Mixtures

The simplest equation of state that can be applied to calculate the thermodynamic properties of gases is the virial equation with the second coefficient B. The probability of applying the one-coefficient equation Z = exp(A/V) for the calculation of compressibility factor at critical temperature of gases and gas mixtures is investigated. It was verified that the one-coefficient equation of state can be applied to calculated the thermodynamic properties for both normal and strongly polar gases and gas mixtures.