| 氨/水体系汽液相平衡模型的研究 |
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| 引用本文： | 齐云,郑丹星. 氨/水体系汽液相平衡模型的研究[J]. 中山大学学报(自然科学版), 2003, 42(Z1): 25-27 |
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| 作者姓名： | 齐云 郑丹星 |
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| 作者单位： | 北京化工大学化学工程学院,北京,100029 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划) |
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| 摘 要： | 基于具有较好的热力学一致性并且覆盖较宽的温度、压力、浓度范围的氨/水汽液相平衡实验数据,本研究评价了6个具有代表性的VLE模型.结果发现,总的来说SR-P方程能够较好描述氨/水体系汽液相平衡行为,虽然在中低温度范围内SR-P方程仅次于最佳的电解质NRTL模型和RK-NRTL模型.据此,本研究回归了SR-P方程的交互作用参数.与原方程相比,新参数SR-P方程的计算精度明显提高.
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| 关 键 词： | 氨/水 热力学一致性检验 汽液相平衡 状态方程 |
Vapor-liquid Equilibrium Model of Ammonia-water System |
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| Abstract. Vapor-liquid Equilibrium Model of Ammonia-water System[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2003, 42(Z1): 25-27 |
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| Authors: | Abstract |
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| Abstract: | Six thermodynamic models are evaluated based on a set of data, which has good thermodynamic consistency and covers very large ranges of temperature, pressure and concentration. As a whole, SR-P equation gives a better representation for the vapor-liquid-equilibrium behavior, though it is worse than Electrolyte-NRTL and RK-NRTL models by little in the low and middle temperature ranges. The regressed equation of state SR-P compared with the original SR-P has a remarkable improvement and can more accurate describe the VLE behaviors of the system of ammonia-water system. |
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| Keywords: | ammonia-water thermodynamic consistency test vapor-liquid equilibrium equation of state |
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