摘要
一、引言 CFCs物质对大气臭氧层的破坏作用已引起世界范围的关注,使得开发研究新的、无污染的CFCs物质的替代物逐渐成为一个十分紧迫的问题。在众多可能的替代物中HFCl34a被认为是最有可能代替R_(12)的理想工质。 HFCl34a开发研究的历史不长,因此关于它蒸气压方程的文献并不是很丰富。表l列出了最近二、三年间发表的四个HFCl34a蒸气压方程的一些情况。由表l可以看出,
A new vapor pressure equation for HFC134a has been proposed in this paper. For obtaining the high accuracy of vapor pressure equation throughout wide temperature range, 33 data have been elected from the experimental data measured by D. P. Wilson et al., H. Kubota et al., G. C. Piao et al. and L. A. Weber respectively. Based on there data, a Wagner type equation has been developed in our work. Comparision among our equation and those equation derived by each author is also listed in this paper. Through the comparision, we can conclude that our equation is the best one in the temperature range from 210.96K to 374.29K.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1991年第1期8-11,共4页
Journal of Engineering Thermophysics
基金
国家科委资助课题
国家自然科学基金
