摘要
本文提出了判别流体热力学性质的通用对比方程的规则和选择作为通用对比方程的热力学参数对比交换的方法；具体给出了工质饱和液体焓和温度的合适对比变换式和通用对比方程。经检验，该通用方程的计算值与２５种常用流体工质的推荐值的平均绝对偏差为０．５％，算术平均偏差为－０．０４％。本文的理论纠正了传统的只用临界参数为对比值的片面认识，为建立在无通用对比方程而仅利用合适的参数变换，从一种已知物性物质推算另一种物质未知物性的一般方法和其它物性的通用对比方程奠定了基础。
This paper proposed the judgment rules of general corresponding-states equations and transformation methods of reduced parameters for general corresponding-states equations. The general corresponding-states equation of specific enthalpy of saturated liquid was obtained. This equation was checked against by standard data of 25 working fluids: the equation agrees with the available data with average deviation of -0.04% and average absolute deviation of 0.5%. The theory has modified the traditional opinion that the reduced properties is only expressed as the functions of the critical properties, and will lay a foundation for establishing general corresponding-state equations of other thermodynamic properties of working fluids.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2001年第1期19-21,共3页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目!(No.59976040)
国家博士点专向基金资助项目!(No.98035825)
