制冷学报2016，Vol.37Issue(5)：33-38,6.DOI:10.3969/j.issn.0253-4339.2016.05.033
制冷剂气体水合物相平衡分解条件预测
Thermodynamic Model for Predicting Phase Equilibrium of Refrigerant Gas Hydrates
摘要
Abstract
This study aims to investigate the phase equilibrium of refrigerant gas hydrates based on thermodynamic theory. A thermody⁃namic model based on the van der Waals⁃Platteeuw model is used to predict the hydrate dissociation conditions. Refrigerants modeled in this study include R22, R23, R125 and R143a. The SRK equation of state is employed for modeling the vapor and fluid phases. The de⁃viation values between model predictions and the experimental data are 1. 21%, 2. 84%, 2. 23% and 1. 02%, respectively. The phase e⁃quilibrium diagram of refrigerant hydrates and quadruple points are obtained. Decomposition heat of refrigerant hydrates is calculated. It is found that the decomposition heat of type Ⅱ refrigerant hydrates is higher than that of type Ⅰ.关键词
气体水合物/制冷剂/相平衡/热力学模型Key words
gas hydrate/refrigerant/phase equilibrium/thermodynamic model分类
通用工业技术引用本文复制引用
杨行,李璞,张龙明,李娜..制冷剂气体水合物相平衡分解条件预测[J].制冷学报,2016,37(5):33-38,6.基金项目
国家自然科学基金（51176154）资助项目。（ The project was supported by the National Natural Science Foundation of China （ No．51176154）．） （）
