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热力参数的对比变换与流体工质热力性质的通用对比方程
引用本文:陈则韶,程文龙,胡?.热力参数的对比变换与流体工质热力性质的通用对比方程[J].工程热物理学报,2001,22(1):19-21.
作者姓名:陈则韶  程文龙  胡?
作者单位:中国科学技术大学热科学和能源工程系,
基金项目: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)
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。

关 键 词:流体工质  热力性质  对比态方程  推算法
文章编号:0253-231X(2001)01-0019-03
修稿时间:2000年1月9日

THE CORRESPONDING PARAMETER TRANSFORMATIONS AND THE GENERAL CORRESPONDING-STATES EQUATIONS OF THERMODYNAMIC PROPERTIES OF WORKING FLUIDS
CHEN Ze-shao,CHENG Wen-Long,HU Peng.THE CORRESPONDING PARAMETER TRANSFORMATIONS AND THE GENERAL CORRESPONDING-STATES EQUATIONS OF THERMODYNAMIC PROPERTIES OF WORKING FLUIDS[J].Journal of Engineering Thermophysics,2001,22(1):19-21.
Authors:CHEN Ze-shao  CHENG Wen-Long  HU Peng
Abstract: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.
Keywords:working fluid  thermodynamic properties  general corresponding-states equation  
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