摘要
在温度范围139.53 K^217.53 K内,采用自行设计的循环法实验装置精确测量了30组CF4(R14)的饱和蒸气压实验数据,并且运用W agner方程和另一种W agner型方程对实验数据进行了拟合。对计算值与实验数据进行了偏差分析,结果显示两种方程的计算值非常接近,与实验数据拟合地较好,从而得到以上温度范围内的CF4饱和蒸气压方程。
Thirty vapor pressure data points of tetrafluoromethane were measured over a temperature range from 139.53 K to 217.53 K. A self-made recircuahion-method apparatus was used in this measurement. The measured saturated vapor pressure data were correlated by the Wagner and another Wagner-type vapor pressure equations. The calculated results agreed well with the experimental data according to deviation analysis. Therefore, vapor pressure equations for tetrafluoromethane were built over the desired temperature range.
出处
《低温工程》
CAS
CSCD
北大核心
2007年第2期1-5,共5页
Cryogenics
基金
国家自然科学基金(50576102)项目资助
