流体机械2011，Vol.39Issue(2)：81-86,6.DOI:10.3969/j.issn.1005-0329.2011.02.018
HFC245fa热物性数学模型及其lgp-h图
Modeling of Thermodynamic Properties and Transport Properties of HFC245fa and its lgp-h Diagram
张淑彦 1李岩 1张吉礼2
作者信息
- 1. 燕山大学,河北秦皇岛,066004
- 2. 大连理工大学,辽宁大连,116024
- 折叠
摘要
Abstract
High temperature work fluids are greatly suitable for the high temperature heat pump,and HFC245fa has been widely considered as a new high temperature work fluid to substitute CFC11 and HCFC123.Based on the experimental results of HFC245fa ,thermodynamic properties models and transport properties models of HFC245fa have been regressed.Namely ,the state equation and saturation vapor pressure equation of HFC245fa have been regressed respectively on the basis of Soave-RedlichKwong model and Wagner model.The vapor isotonic ratio specific heat model of HFC245fa has been created by the group theory.The evaporation latent heat model of HFC245fa has been finished by Clausius-Clapegron equation.Coefficient of viscosity,coefficient of heat transfer and other transport properties equations of HFC245fa have been built by various polynomial models.Finally,the lgp-h diagram of HFC245fa has been drawn out according to the built thermedynamic properties models.The error analyzed results of the thermodynamic properties models and transport properties models of HFC245fa show that all the models can meet the calculation precision demands of its applications in the development of the heat pump.关键词
HFC245fa/热力性质模型/迁移性质模型/数据拟合/lgp-h图Key words
HFC245fa /thermodynamic properties model/ transport properties model/ data regression/ lgp-h diagram分类
通用工业技术引用本文复制引用
张淑彦,李岩,张吉礼..HFC245fa热物性数学模型及其lgp-h图[J].流体机械,2011,39(2):81-86,6.
