| HFC/HC混合工质共沸点的推算 |
| |
| 引用本文： | 胡芃,毛霖,陈龙祥,陈则韶.HFC/HC混合工质共沸点的推算[J].工程热物理学报,2012(3):371-374. |
| |
| 作者姓名： | 胡芃 毛霖 陈龙祥 陈则韶 |
| |
| 作者单位： | 中国科学技术大学热科学与能源工程系 |
| |
| 基金项目： | 国家自然科学基金资助项目(No.50976113) |
| |
| 摘 要： | HFC/HC混合工质的气液性平衡实验研究结果表明,该类型混合工质大多存在共沸现象。根据形成共沸点的热力学条件,以PR状态方程结合vdW混合法则,利用建立的二元相互作用系数kij差值关联模型,对10种HFCs工质（HFC23、HFC32、HFC125、HFC143a、HFC134a、HFC152a、HFC227ea、HFC236fa、HFC236ea、HFC245fa）与3种HCs工质（HC290、HC600a、HC600）相互组合而成的30种HFC/HC混合工质进行了共沸点判断和共沸点性质推算,并与已有气液相平衡实验数据的体系进行对比。结果表明该方法可用于推算HFC/HC混合工质共沸点性质。
|
| 关 键 词： | 气液相平衡 共沸点 HFC/HC混合工质 |
Prediction of Azeotropes for HFC/HC Mixtures |
| |
| HU Peng MAO Lin CHEN Long-Xiang CHEN Ze-Shao.Prediction of Azeotropes for HFC/HC Mixtures[J].Journal of Engineering Thermophysics,2012(3):371-374. |
| |
| Authors: | HU Peng MAO Lin CHEN Long-Xiang CHEN Ze-Shao |
| |
| Institution: | HU Peng MAO Lin CHEN Long-Xiang CHEN Ze-Shao (Dept of Thermal Science and Energy Engineering,University of Science and Technology of China,Hefei 230027,China) |
| |
| Abstract: | The previous reported experimental results of vapor-liquid equilibria for HFC/HC mixtures indicate that these mixtures normally show azeotropic behavior.Based on the thermodynamic conditions for azeotropy,a model using PR equation of state and van der Waals mixing rule is developed,in which the binary interaction parameter kij is predicted by the differential-model.The model is used to determine the binary homogeneous azeotropes for 30 types of HFC/HCs mixtures,which consist of 10 HFCs（namely HFC23,HFC32,HFC125,HFC143a,HFC134a,HFC152a,HFC227ea,HFC236fa, HFC236ea,and HFC245fa） and 3 HCs（namely HC290,HC600a,and HC600）.The prediction results are compared with the reference data,and show good agreements. |
| |
| Keywords: | vapor-liquid equilibria azeotrope HFC/HC mixtures |
| 本文献已被 CNKI 等数据库收录！ |
|
