Thermal Conductivity of Ternary Refrigerant Mixtures of HFC-32/125/134a in the Liquid Phase

被引：0
|
作者：
X. Gao
Y. Nagasaka
A. Nagashima
机构：
[1] Keio University,Department of System Design Engineering
来源：
International Journal of Thermophysics | 1999年 / 20卷
关键词：
HFC-32/125/134a; refrigerant; R-407C; ternary mixture; thermal conductivity; transient hot-wire method;
D O I：
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中图分类号：
学科分类号：
摘要：
The liquid thermal conductivity of two ternary mixtures of HFC-32/125/134a (23.0/25.0/52.0 and 19.0/43.8/37.2 wt%) was measured using a transient hot-wire instrument in the temperature ranges from 193 to 293 K and from 213 to 293 K, respectively, and in the pressure range from 2 to 30 MPa. The thermal conductivity has an estimated uncertainty of ±0.7%. For engineering purposes, the thermal conductivity data were correlated using a polynomial in temperature and pressure for each mixture with a standard deviation of 0.6%.
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页码：1417 / 1424
页数：7
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