A Study of Thermophysical Properties of New Working Medium for Compression-Absorption Combined Cycle

压缩-吸收联合循环新型工质热物性研究

• 批准号: 01460120
• 负责人: UEMATSU Masahiko
• 金额: $ 4.29万
• 依托单位: Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01460120/
• 关键词: Water + Ammonia Mixture; Water + Trifluoroethanol Mixture; Enthalpy-Concentration Diagram; Diagram of Vapor-Liquid Equilibrium; Thermodynamic Properties; Vapor Pressure; Equation of State; Thermophysical Properties; 高温・高圧測定装置; 熱物性質の評価; 状態式・混合則の評

The results of this research cover the following three items : 1) Evaluation of the thermophysical properties of ammonia + water mixtures, 2) development of the experimental apparatus for measuring the thermodynamic properties of aqueous mixtures, 3) measurements of the thermodynamic properties of component substance of trifluoroethanol + water mixtures.As for the thermophysical properties of the ammonia + water mixtures, the literatures have been surveyed thoroughly, and the experimental data in the literatures have been compiled as a data-base. Based on the dataーbase constructed, the available equations of state with the mixing rules reported have been compared with the experimental data carefully. It is concluded that the equation of state proposed by Ziegler and Trepp should be used for drawing the enthalpy-concentration diagram, and that the equation of state proposed by Soave should be used for drawing the diagrams of the vapor-liquid equilibrium under the present conditions. It … More is pointed out that the PVTX properties, saturated liquid density, enthalpy as well as the transport properties should be measured because of a lack of the experimental data, and that the critical curve should be measured because of a considerable amount of discrepancy between the experimental data available.The experimental apparatus for measuring PVT properties, VLE properties, saturated liquid and vapor densities, critical properties, excess volume and various derivatives with high accuracy has been constructed, and its performance has been confirmed in the range of temperatures and pressures up to 520 K and 200 MPa. It is possible to use this apparatus in high temperature region to 700 K by using molten salt as heat-transfer medium.The vapor pressures of 2, 2, 2-trifluoroethanol have been measured in the temperature range from 320 to 400 K corresponding to the pressure range from 30 to 589 kPa, and 86 measurements at every 5 K have been obtained. Based on these experimental data, the normal boiling point has been determined to be (347.03+0.10) K. The PVT properties and saturated liquid densities of 2, 2, 2-trifluoroethanol have been measured in the range of temperatures from 313 to 413 K up to 200 MPa. The measurements of various thermodynamic properties of trifluoroethanol + water mixtures are undertaken. Less

这项研究的结果包括以下三个项目：1）氨+水混合物的热物理性质的评价，2）水混合物热力学性质测定实验装置的研制，3）三氟乙醇+水混合物组成物质的热力学性质的测定。对文献进行了全面的调研，并将文献中的实验数据整理成数据库。在建立的数据库基础上，对已有的混合规则状态方程与实验数据进行了比较。认为在本实验条件下，用齐格勒和特雷普提出的状态方程绘制水-浓度图，用Soave提出的状态方程绘制汽-液平衡图。它 ...更多信息 指出由于实验数据的缺乏，PVTX物性、饱和液相密度、焓值以及输运性质等都应进行测量，而临界曲线的测量则由于实验数据之间存在较大的差异而应进行测量，并介绍了测量PVT物性、VLE物性、饱和液相和汽相密度、临界性质构造了具有高精度的过量体积和各种导数的计算模型，并在高达520 K和200 MPa的温度和压力范围内证实了其性能。在320 ~ 400 K温度范围内，测量了2，2，2-三氟乙醇的蒸气压，对应的压力范围为30 ~ 589 kPa，每5 K测得蒸气压86个。根据这些实验数据，确定了标准沸点为（347.03 ± 0.10）K。在313 ~ 413 K和200 MPa的温度范围内测定了2，2，2-三氟乙醇的PVT性质和饱和液体密度。对三氟乙醇+水混合物的各种热力学性质进行了测量。少

项目成果

Y. Kabata, S. Yamaguchi, Y. Takiguchi, M. Uematsu: "Measurements of the Vapor Pressure of 2, 2, 2-Triflu-oroethanol in the Temperature Range from 320 to 400 K" The Eleventh Japan Symposium on Thermophysical Properties. 373--376 (1990)

Y. Kabata、S. Yamaguchi、Y. Takiguchi、M. Uematsu：“320 至 400 K 温度范围内 2, 2, 2-Triflu-oroethanol 的蒸气压测量”第十一届日本热物理性质研讨会。

Y.Kabata,S.Yamaguchi,Y.Takiguchi,M.Uematsu: "Measurements of the Vapor Pressure of 2,2,2ーTrifluoroーethanol in the Temperature Range from 320 to 400K" Journal of chemical Thermodynamics. 23. (1991)

Y.Kabata、S.Yamaguchi、Y.Takiguchi、M.Uematsu：“320 至 400K 温度范围内 2,2,2-三氟乙醇的蒸气压测量”《化学热力学杂志》23。（1991 年） ）

Y. Kabata: "Measurements of the Vapor Pressure of 2,2,2ーTrifluoroethanol in the Temperature Range from 320 to 400 K" Journal of Chemical Thermodynamics. 23. (1991)

Y. Kabata：“320 至 400 K 温度范围内 2,2,2-三氟乙醇的蒸气压测量”《化学热力学杂志》23。（1991 年）

加幡 安雄: "金属ベロ-ズ変容法による混合流体の熱力学性質測定装置の開発" 第30回高圧討論会講演要旨集. 360-361 (1989)

Yasuo Kabata：“利用金属波纹管变换法测量混合流体热力学性质的装置的开发”第30届高压研讨会摘要360-361（1989）。

Y. Kabata, M. Uematsu: "Development of the Apparatus for Measuring the Thermodynamic Properties for the Fluid Mixtures in the Range of Temperatures and Pressures up to 700 K and 200 MPa (Continued Report : Results of Performance Test for the Apparatus)" P

Y. Kabata、M. Uematsu：“开发在温度和压力高达 700 K 和 200 MPa 的范围内测量流体混合物热力学性质的装置（续报告：装置性能测试结果）”P