制冷技术2025，Vol.45Issue(1)：42-48,7.DOI:10.3969/j.issn.2095-4468.2025.01.107
混合工质R1233zd(E)/R600a液相导热系数的实验研究
Experimental Study on Liquid Thermal Conductivity of Mixed Refrigerant R1233zd(E)/R600a
摘要
Abstract
To address the environmental requirements for refrigerants imposed by global climate change,the thermodynamic properties of R1233zd(E)/R600a mixtures is studied.The liquid thermal conductivity of mixtures with R1233zd(E)mass fractions of 90%,80%,70%,60%,50%and 40%is measured using the transient hot-wire method across the temperature range of 273～300 K.A mathematical correlation is developed to describe the relationship between thermal conductivity and temperature/mass fraction,maximum relative deviation and average absolute deviations of 0.37%and 0.0012,respectively,between experimental and correlated values.Furthermore,multiple methods are used to predict thermal conductivity,all showing good accuracy in modeling the thermal conductivity and its temperature-dependent behavior of mixed working fluids across the studied temperature range.The Jamieson equation,in particular,closely matched experimental data with its simple form,rendering it ideal for engineering applications.关键词
低全球变暖潜值/R1233zd(E)/R600a混合工质/液相导热系数/瞬态热线法Key words
Low Global Warming Potential/R1233zd(E)/R600a Blend/Liquid-phase thermal conductivity/Transient hot-wire method分类
通用工业技术引用本文复制引用
董俊启,祁影霞,张华,邹冠星,徐小雷..混合工质R1233zd(E)/R600a液相导热系数的实验研究[J].制冷技术,2025,45(1):42-48,7.基金项目
国家重点研发计划(No.2020YFF0303901). （No.2020YFF0303901）
