Thermal Conductivity Measurements of Liquid Ethylene and Ethylene plus Propane Binary Mixtures

被引:0
作者
Wang, Xiongwei [1 ,2 ]
Guo, Hao [1 ]
Zhao, Xiufang [1 ,2 ]
Sheng, Bowen [1 ]
Tang, Bo [1 ,2 ]
Gong, Maoqiong [1 ,2 ]
机构
[1] Chinese Acad Sci, Tech Inst Phys & Chem, State Key Lab Cryogen Sci & Technol, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
关键词
HOT-WIRE TECHNIQUE; ABSOLUTE DETERMINATION; NOBLE-GASES; REFRIGERANTS; PREDICTION; TEMPERATURE; PRESSURE;
D O I
10.1021/acs.jced.4c00468
中图分类号
O414.1 [热力学];
学科分类号
摘要
Ethylene and its mixtures play an important role in fields such as cryogenic refrigeration and chemical separation. However, there is a lack of experimental data on the thermal conductivity of ethylene and its mixtures at low temperatures. In this work, the thermal conductivity of liquid ethylene and ethylene + propane mixtures was measured using the transient hot-wire method. For ethylene, measurements were conducted within the temperature range 120-240 K, with pressures below 22 MPa. For ethylene + propane mixtures, with ethylene mole fractions of 0.306, 0.437, and 0.706, the measurements were conducted within a temperature range of 133-268 K, with pressures below 23 MPa. The experimental results deviated from REFPROP 10.0 calculation results by no more than 3%, where ethylene uses a proprietary model and binary mixtures use the ECS model. The experimental data for ethylene were correlated based on dimensional analysis, resulting in an average absolute relative deviation (AARD) of 0.85%. The thermal conductivity of the ethylene + propane mixtures was developed by combining the critical parameter prediction model and dimensional analysis method, yielding an AARD of 0.98%. The results indicate that the correlation model exhibits a higher accuracy than the models implemented into REFPROP 10.0.
引用
收藏
页码:236 / 243
页数:8
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