混合制冷剂相互作用系数的研究——Lee-Kesler-Plǒcker通用状态方程

STUDY ON LEE-KESLER-PLOCKER EQUATION OF STATE INTERACTION COEFFICIENTS FOR HFCs REFRIGERANT MIXTURES

混合制冷剂的相互作用系数是制冷空调应用中建模和计算制冷剂热力性质所需的一个重要参数,本文利用大量的汽液相平衡实验数据结合LKP方程进行了热力学关联,提出了适合于计算HFCs混合制冷剂的相互作用系数的一种算法,求取的相互作用系数用于汽液相平衡和循环分析计算具有较高精度,与实验数据或其他热力模型计算结果吻合情况良好。

Interaction coefficients for refrigerant mixtures are an important parameters for predicting or modelling the thermodynamic performance of these mixtures in air conditioning and refrigeration cycles. The vapor liquid equilibrium experimental data were used to determine the binary interaction coefficients that characterize the non-ideal behavior of refrigerant mixtures with the LKP equation of state, and an algorithm was provided to predict the LKP interaction coefficients for the calculation of the vapor liquid equilibrium and the refrigerating cycle. Calculated results showed good agreement with the experimental data or the literature values of other thermodynamic models.