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采用混合自然工质的自复叠制冷系统热力性质分析
引用本文:徐士鸣,彭勃. 采用混合自然工质的自复叠制冷系统热力性质分析[J]. 热科学与技术, 2007, 6(4): 289-293
作者姓名:徐士鸣  彭勃
作者单位:大连理工大学能源与动力工程学院,辽宁,大连,116024;大连理工大学能源与动力工程学院,辽宁,大连,116024
摘    要:对R744/R290、R744/R600a混合自然工质的热力性质进行分析比较,并将它们用于自复叠制冷循环,对系统的循环特性进行分析。经过计算,得出了两种混合工质制冷性质的不同点及环境温度、制冷温度、混合工质中R744浓度对系统性能的影响。为今后R744/R290、R744/R600a的实验研究和实际应用提供了理论依据,减少了实验的工作量。

关 键 词:R744/R290  R744/R600a  自复叠制冷  热力性质计算
文章编号:1671-8097(2007)04-0289-05
收稿时间:2007-10-16
修稿时间:2007-11-20

Thermodynamic property analysis of auto-cascade refrigeration system using natural binary mixture
XU Shi-ming,PENG Bo. Thermodynamic property analysis of auto-cascade refrigeration system using natural binary mixture[J]. Journal of Thermal Science and Technology, 2007, 6(4): 289-293
Authors:XU Shi-ming  PENG Bo
Abstract:The thermodynamic properties of the natural mixture working substances R744/R290 and R744/R600a were compared for an auto-cascade refrigeration system. The cycle performance was analyzed. The effect on the system performance of the ambient temperature, the refrigeration temperature and the mole fraction of R744 in the mixtures were calculated. The result may provide theoretic reference for the study and application of R744/R290 and 744/R600a mixture.
Keywords:R744/R290  R744/R600a
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